Japanese Academic Publishing

Summary

Eleven findings

Japan's scholarly publishing system is not weak because it lacks institutions. It is weak because the institutions it has were designed to solve a 1990s problem — getting Japanese journals online — and the problem has since changed to getting Japanese journals read, cited, licensed and machine-readable.

Finding 01

Ownership is not the problem; distribution is

Japanese learned societies own and control their journals. What they do not own is the machinery that makes a journal visible: hosting at scale, indexing, marketing and global sales. That layer has been delegated to foreign publishers — and every journal that sustained a top-quartile position in 2016–2018 was published under such a contract.¹

9 of 9 sustained-Q1 Japanese journals were contract-published abroad

Finding 02

The state built plumbing, not publishing

J-STAGE, JaLC, CiNii and JAIRO Cloud are free or near-free national utilities of high quality. But total state support for journal publishing runs at about ¥0.71bn a year, against roughly ¥43bn of foreign subscription spending and ¥12.9bn of article-processing charges. Japan finances other countries' publishing infrastructure far more generously than its own.^2,3,4

¥0.71bn of state support vs ¥43.0bn subscriptions + ¥12.9bn APCs

Finding 03

‘Free’ has been mistaken for ‘open’

More than 80% of J-STAGE journals can be read at no cost, and Japan's share of ‘diamond’ open access — free to read and free to publish — is the highest of any major research nation measured here, at 20.6%. But in 2022 only 6% of J-STAGE titles carried an explicit reuse licence. Free-to-read content is invisible to text mining, translation and AI retrieval workflows.^5,6

Diamond OA 20.6% of Japanese articles — yet only 6% of J-STAGE titles were licensed OA (2022)

Finding 04

Machine-readability is the binding constraint

Only 281 of 3,705 current J-STAGE journals deposited full-text JATS XML in FY2025 — 7.6%, against near-100% for overseas publishers. J-STAGE has responded by making full-text XML deposit mandatory during FY2029 and PDF optional, and by supplying a free conversion tool. This is the single most consequential technical decision in Japanese scholarly publishing this decade.⁶

281 of 3,705 current journals at full-text XML (7.6%)

Finding 05

The university press sector is real but tiny

Twenty-four presses, most with fewer than fifteen staff, published 535 books between them in 2025 — roughly the output of two or three large Western presses. They publish almost no journals, hold almost no endowments, and in the one published profit-and-loss account earn 87% of their income from commissioned work for their own university rather than from book sales.^7,8

535 new titles across all 24 AJUP presses in 2025

Finding 06

The mandate arrived without a budget

The Cabinet Office's February 2024 policy requires immediate, zero-embargo deposit of peer-reviewed articles and underlying data from designated competitive funds, effective for rounds first advertised from FY2025. Compliance is expected through green open access in institutional repositories. There is no national APC fund. The measurable effect so far is policy adoption: 298 universities now have a formal open-access policy, up from 171 two years earlier.^9,10

298 universities (36.5%) with an OA policy in FY2024, up from 171 (21.1%)

Finding 07

Collective bargaining is the new front

Because no national read-and-publish settlement was possible, the RU11 research universities formed OASE and then OASE+ and negotiated publisher by publisher. Springer Nature (December 2025), Wiley and ACS (August 2026) and Elsevier (September 2026) have now signed. The deals remain opt-in and university-by-university, covering institutions in the tens rather than the hundreds.^11,12,13

67 universities in the Wiley 2025 agreement; 140 expressing interest in the Elsevier deal

Finding 08

Volume is not the problem — visibility is

Japan's output has been broadly stable since the mid-2010s: about 148,000 journal articles a year from Japanese-affiliated authors in 2024. What has collapsed is influence. Japan's share of the world's top-10% cited papers fell from 6.0% in 1999–2001 to 1.7% in 2021–2023, taking its rank from fourth to thirteenth.^14,5

Top-10% share 6.0% → 1.7%; rank 4 → 13

Finding 09

A small share of a large global register

Japan accounts for 723 of Crossref's 33,849 members (2.1%) and 2.77m of its 174.2m DOIs (1.59%). Deposits by Japanese members peaked around 2007 at nearly 60,000 DOIs a year and have since fallen by roughly a quarter. Even this understates Japanese activity, because much of it is registered through the domestic agency JaLC rather than direct with Crossref.^15,16

2.77m DOIs (1.59% of Crossref) from 723 Japanese members

Finding 10

The domestic market is contracting underneath all of it

The Japanese publishing market has fallen for four consecutive years and print dropped below ¥1 trillion for the first time in 2025. Digital growth is almost entirely comics: text e-books are a ¥45.9bn market, three-tenths of one percent of the total. Specialist books carry higher return rates than trade titles, and mid-size bookshops are shrinking their specialist floor space.¹⁷

Total market ¥1,546.2bn in 2025 (−1.6%); print ¥964.7bn (−4.1%)

Finding 11

There is a coherent reform blueprint, and it is unimplemented

The Science Council of Japan proposed in 2020 exactly what the system lacks: flat-rate offset contracts negotiated nationally, a journal-publishing service corporation with professional editorial teams, machine translation for bilingual publishing, and a Japanese-language citation index. Six years on, the elements have been adopted piecemeal — OASE+ for negotiation, J-STAGE consulting for publishing support — but not as a programme.^18,13

Proposed 2020; partially adopted through OASE+ and J-STAGE consulting

Anatomy

The shape of the system

Five layers, each with a different owner, funding source and incentive. The unusual feature of the Japanese arrangement is that the layer which owns the content (societies) is not the layer which monetises it (international publishers), and the layer which hosts it (the state) has no commercial stake at all.

Compiled from the sources cited throughout this profile. “Organisations” counts bodies publishing on J-STAGE at 31 March 2026.⁶

Layer by layer

The five layers in detail

Each layer is described by what it owns, how it is funded, and where its structural weakness lies.

Learned societies (学会)

The actual publishers of Japanese science

Almost every Japanese scholarly journal is owned by a learned society. There is no Japanese equivalent of Elsevier or Springer at home: the society is publisher of record, and it either hosts the journal itself on the national platform or hands production and global sales to a foreign house.^6,15,19,1

Share of Japanese journals published by societies rather than by publishers

Overwhelming majority — J-STAGE's 6.0m articles come from 2,728 non-profit publishing organisations, more than half of Japan's learned societies.

Largest single publisher of record by DOI count

The Japan Society of Mechanical Engineers — 338,673 DOIs, more than four times the next largest.

Typical financing

Membership dues plus optional journal surcharges. The Physical Society of Japan charges ¥12,000/year for full members and a further ¥9,900 for online JPSJ.

Chronic deficit problem

PTEP (Physical Society of Japan) has run a structural deficit since its JSPS open-access grant ended, and now reviews APC waivers case by case.

The Janus structure

A Japanese-language 機関誌 bundled into membership dues sits alongside a financially exposed English 英文誌 that must compete globally.

ESCI attrition

Of 248 Japanese journals reviewed for ESCI in June 2017, roughly 54% (≈140) were rejected — mostly for missing English information, opaque editorial boards and publication backlogs.

University presses (大学出版部)

A book sector with no journals and no endowment

Twenty-four presses, collectively staffed by a few hundred people, publish roughly 535 scholarly books a year and almost no journals. They are structurally dependent on commissioned publishing for their own universities rather than on the book market.^20,7,8

Members of the Association of Japanese University Presses (AJUP), as of June 2026

24 (23 active; one on hiatus)

New titles published by all AJUP presses in calendar 2025

535, with a combined list value of ¥2.45m and an average cover price of ≈¥4,580

Largest single press by output

University of Tokyo Press — 123 titles in 2025, about 23% of the association's total

Staffing

Hosei 10 · Kyoto 12 · Tokyo 31 · Keio 49. Even the largest is under 50 people.

Revenue model, in the one published P&L

Chuo University Press earned 87.4% of FY2024 income from commissioned publishing (受託出版) and only 12.6% from book sales — and ran a deficit.

Legal forms

Foundation (財団), incorporated association (社団), joint-stock company (株式会社), and — at Tohoku — an unincorporated body inside the university's own administration.

Domestic commercial publishers

Textbooks, reference works and magazines — not journals

Japan has a deep bench of commercial scholarly publishers, but with few exceptions they publish books, textbooks and professional magazines. The peer-reviewed journal layer simply is not theirs.^21,22,23,24

Iwanami Shoten

Founded 1913. Publishes 『思想』『科学』『世界』 and 広辞苑 but no peer-reviewed journals; famously sells on firm sale rather than returnable consignment.

Maruzen-Yushodo

The dominant academic library agent: FY2026/1 revenue ≈¥34.2bn, ~4,130 staff, ~280 outsourced library and museum operations. A DNP subsidiary.

Igaku-Shoin

Japan's largest medical publisher — revenue ¥10.69bn (FY2021) — with ~30 clinical monthlies that are professional magazines, not archival journals.

Yuhikaku

The law and economics house behind 六法全書 and 『ジュリスト』; revenue ¥4.3bn as long ago as FY2008, not disclosed since.

Ohmsha

Publishes the journals of the IEE Japan, IEICE and IPSJ — a rare case of a commercial house carrying society titles.

The secretariat industry

国際文献社, 中西印刷, 学会誌刊行センター and similar firms run entire society offices: accounting, peer review, J-STAGE loading, DOI and PMC deposit. The 2004 collapse of 学会事務センター, which had diverted ¥1.6bn of society deposits, permanently reshaped this market.

National platform and infrastructure

One platform, one DOI agency, one search layer

Japan built a national answer to commercial publishing infrastructure: a free journal platform, a national DOI registration agency, a research-data cloud and a single discovery layer. The state funds plumbing, not publishing.^{6,16,25,26,27,28}

J-STAGE

Launched October 1999 with 3 journals. FY2025: 4,396 titles, 6,002,235 items, 2,728 organisations, 673m downloads. Free at the point of use; JST even pays the Crossref DOI fees.

JaLC (Japan Link Center)

Accredited as a DOI registration agency on 15 March 2012 by JST, NII, NIMS and the National Diet Library. 86 full and 3,448 associate members; 14.14m cumulative DOIs at end-2025, of which 11.39m registered through JaLC itself.

CiNii Research (NII)

Launched 1 April 2021; absorbs CiNii Articles (2022), Dissertations (2024) and Books (2025–27) into one index.

JAIRO Cloud

Cloud institutional-repository service used by 822 institutions at end-FY2025.

IRDB → OpenAlex

In August 2026 NII exposed ~4 million Japanese repository records to OpenAlex using JPCOAR Schema v2.0 — a step change in the discoverability of Japanese-language output.

Jxiv and J-STAGE Data

A national preprint server (launched March 2022; 530 preprints by Jan 2025) and a Figshare-powered data repository issuing JaLC DOIs.

International publishers

Where Japan's most visible journals actually live

Japan's internationalisation strategy has been delegation. The country's best-known English journals are owned by societies but produced, hosted and sold by Oxford, Springer Nature, Wiley, IOP, Elsevier or Taylor & Francis — each with a long-established Tokyo presence.^{1,29,30,31,32,33,34,35,36,37}

The structural evidence

Of the 9 Japanese journals that held a Q1 position for three consecutive years (2016–2018), all 9 were published under contract by major commercial publishers.

Oxford University Press

In Japan since 1 November 1957. Took over the Chemical Society of Japan's BCSJ and Chemistry Letters in January 2024, plus PTEP, J. Biochemistry, Plant and Cell Physiology, BBB and International Immunology.

Springer Nature

Registered in Tokyo on 25 January 1983; ~200 staff in Japan. Hosts PEPS, Earth Planets and Space, Hypertension Research, Polymer Journal, Analytical Sciences and Ecological Research.

Wiley

Published 51 Japanese society journals as early as December 2010; Cancer Science has been fully open access since January 2014.

IOP Publishing

Tokyo office since 2002; publishing partner for the Japan Society of Applied Physics (JJAP, APEX) since January 2014.

The coordination layer

The STM Japan Chapter brings together Wiley (chair), Taylor & Francis, Springer Nature, Elsevier, OUP, Cambridge, IOP, ACS and others, and has run a joint seminar with JST every October since 2017 aimed at J-STAGE societies.

Evidence

What the numbers show

Nine quantitative views of the system. Where a figure was measured directly from a public API for this profile, that is stated; those measurements are reproducible from the endpoint given in the source list.

The platform grew — and kept growing through the pandemic

J-STAGE titles and participating publishing organisations, fiscal year-end. Titles include proceedings and ceased journals.

Participation more than kept pace with content: organisations rose 62% between FY2019 and FY2025, from 1,687 to 2,728, while titles rose 44%.⁶ J-STAGE now serves more than half of Japan's learned societies.⁶

Machine-readability is the weakest link

Current J-STAGE journals by depth of XML deposit. Bibliographic XML covers only the citation metadata; full-text XML makes the article body machine-readable.

7.6%

of current J-STAGE journals deposited full-text JATS XML in FY2025 — 281 titles — against near-100% among overseas publishers. Deposit becomes mandatory during FY2029.⁶

The gap is not for want of tooling: J-STAGE provides a free Word/LaTeX-to-JATS converter and has run JATS seminars with XSPA since 2012. J-STAGE's own access analysis, using a difference-in-differences design across humanities, medical and chemistry journal sets, found that journals moving to HTML full text saw access rise relative to matched controls.^6,38

Where J-STAGE's readers are

Downloads by country, FY2025 (673m total).

Overseas downloads (425m) are more than double domestic ones; the United States alone accounts for 35%.⁶

Certified open access: Japan barely registers

Journals in DOAJ by country of publisher, September 2026. DOAJ lists journals that meet its certification criteria, including an explicit reuse licence.

Japan has 95 of DOAJ's 23,555 titles — 0.40%, ranking 30th, behind Indonesia, the United Kingdom, Brazil, the United States, Iran, Spain and Poland, and behind China (577) and South Korea (183). A J-STAGE–DOAJ partnership that began in 2020 lifted the Japanese count from 33 to 64 by early 2022; progress since has been slow.^39,40

A structural decline in Japan's share of the scientific record

Japan's share of the world's most-cited papers, fractional counts, natural sciences (NISTEP).

The volume of Japanese research has been broadly flat since the mid-2010s; its citation share has not. Japan ranked 4th in the world for top-10% papers in 1999–2001 and 13th in 2021–2023, while its paper count stayed at 5th. NISTEP cautions that part of this is compositional: counting only citations from G7 and OECD countries moves Japan from 13th to 11th.¹⁴

Japanese research output is stable, not growing

Journal articles with at least one Japan-affiliated author (OpenAlex, measured for this profile).

Output rose steadily from 113,000 articles in 2000 to a peak of about 167,000 in 2020, then fell back to roughly 148,000. The decline is not a reporting artefact: it coincides with the flattening that NISTEP reports across all major countries except China.^41,14

Who publishes Japanese research at home

Japanese-located Crossref members by cumulative registered DOIs (all years, measured for this profile).

Engineering and medical societies dominate volume, and much of it is conference proceedings rather than journal articles — the Japan Society of Mechanical Engineers alone has deposited 338,673 DOIs, more than four times any other Japanese member.¹⁵

DOI deposits by Japanese members peaked around 2007

Crossref DOIs registered by Japanese-located members, by the issued year of the content (measured for this profile).

Deposits rose from about 38,000 a year in 1990 to a peak of 59,677 in 2007, then declined to roughly 45,000 — a fall of about 24%. Japan accounts for 2.77m of Crossref's 174.2m DOIs (1.59%) and 723 of its 33,849 members (2.1%). The true Japanese total is higher, because JaLC registers DOIs domestically: JaLC's own register passed 14.1m DOIs at the end of 2025, of which 11.4m were registered through JaLC itself rather than Crossref.^15,16

Twenty-four presses, 535 books

New titles published by AJUP member presses, calendar 2025, as reported in the association's monthly 新刊速報.

The University of Tokyo Press alone accounts for 123 titles, about 23% of the association total. The three largest presses — Tokyo, Keio and Hosei — produce 47% of all AJUP output. Nine presses published fewer than ten titles; one published none.⁷

Japan's open access is unusually ‘free’ rather than licensed

Open-access status of journal articles by author-affiliation country, 2023 (OpenAlex, measured for this profile). Percentages of each country's journal-article total.

Japan's diamond share — free to read and free to publish, with no APC — is the highest of the seven countries compared, at 20.6%, against 8.0% for the United Kingdom and 6.7% for Germany. That is the J-STAGE effect, and it is a genuine public good. But diamond and bronze access frequently carry no reuse licence, which is why a country with 74% of its articles openly readable holds only 0.40% of DOAJ's certified titles.^5,39

The country league table

Papers, top-10% and top-1% cited papers, 2021–2023 average, fractional counts (NISTEP 2025).

Country	Papers	Share %	Rank	Top 10%	Share %	Rank	Top 1%	Share %	Rank
China	599,435	29.1	1	73,315	35.6	1	7,458	36.2	1
United States	289,791	14.1	2	32,781	15.9	2	3,910	19.0	2
India	91,997	4.5	3	7,697	3.7	4	614	3.0	5
Germany	72,762	3.5	4	6,845	3.3	5	718	3.5	4
Japan	70,225	3.4	5	3,447	1.7	13	293	1.4	12
United Kingdom	65,203	3.2	6	8,396	4.1	3	1,000	4.9	3
Italy	60,712	3.0	7	6,428	3.1	6	484	2.4	7
South Korea	58,382	2.8	8	4,380	2.1	9	360	1.8	9
France	44,976	2.2	9	3,730	1.8	11	342	1.7	10
Spain	44,789	2.2	10	3,767	1.8	10	330	1.6	11

Japan's paper share (3.4%) is close to Germany's (3.5%) and the United Kingdom's (3.2%), but its top-10% share (1.7%) is less than half of either. India, with 1.3 times Japan's paper count, produces more than twice as many top-10% papers.¹⁴

Economics

Where the money goes

The decisive fact about Japanese academic publishing is the asymmetry between what Japan pays to read and publish in other countries' journals and what it invests in its own.

Annual flows, ¥ billion

What Japanese universities and funders spend, against what the state spends on publishing Japanese research.

Figures are for different years and different populations, so they are indicative rather than additive: MEXT's materials-budget survey covers all universities (FY2024); the JUSTICE subscription figures cover 537 consortium member libraries (2024); the APC estimate covers Japanese-institution corresponding authors (2023); the state figures are FY2025 and FY2024.^10,3,4,2,42

The state's publishing support, at true scale

The two KAKENHI 研究成果公開促進費 streams that fund publishing itself.

The 学術図書 book subsidy disbursed ¥268m to 172 projects in FY2024 — an average of ¥1.56m per book. AJUP documented its collapse from just under ¥700m in FY2006 to ¥370m in FY2008. The whole 研究成果公開促進費 programme, including outreach and database streams, disbursed ¥711.7m in FY2025 across 1,000 projects.^42,43,2

Who receives Japan's article-processing charges

Estimated APC paid by Japanese-institution authors, 2023, top five publishers (JUSTICE).

Total estimated APC spend in 2023 was ¥12.94bn across 44,410 open-access articles, up from about ¥5.45bn in 2019. The top ten publishers take roughly 68% of the money. MDPI alone receives more than the state spends on publishing Japanese journals and books combined.^4,2

The domestic market underneath

Estimated Japanese publishing market by segment, ¥ billion (出版科学研究所).

The market has declined four years running and is back to roughly its 2019 size. Print fell below ¥1 trillion in 2025 for the first time, against a peak of ¥2.6 trillion in 1996. Digital growth is almost entirely comics — ¥527.3bn of the ¥581.5bn digital total — while text e-books remain a ¥45.9bn market, 0.3% of everything.¹⁷

How a society journal is actually financed

Three revenue sources, in descending order of reliability, and one growing cost. Membership dues are the floor. The Physical Society of Japan charges ¥12,000 a year for full membership and ¥8,000 for students, with journal access sold as a surcharge: ¥9,900 for online JPSJ, ¥15,400 for print and online, ¥3,000 for JJAP; PTEP is free because it is open access.¹⁹ The Japanese-language 機関誌 is bundled into those dues and functions as a membership benefit rather than a product. The English 英文誌 is the financially exposed item, and it is where outsourcing happens.

Publication charges and APCs are the second source, and their direction of travel is unambiguous. The Physical Society states plainly that PTEP has run a chronic deficit since its JSPS open-access grant ended, and that the move to open access shifts scholarly publishing “from a subscription-based to a publication-charge-based” business model. For comparative purposes the society cited an average APC of about €1,100 across the journals it tendered, against US$2,500 for APS Physical Review D and US$2,310 for Elsevier's Physics Letters A. High-energy-physics papers in PTEP are APC-free under SCOAP3, funded by more than 70 Japanese university libraries redirecting subscription money.¹⁹

Not every society passes costs to authors. The Japanese Society for Immunology states that International Immunology, which the society owns and edits and OUP publishes, levies no submission fee, no page charge and no online colour charge.³⁷ Where journals do move to open access, the pattern is a subsidy in the transition: JpGU covers APCs in full for invited papers in Progress in Earth and Planetary Science and gives members and review articles a 20% discount, funded by KAKENHI 国際情報発信強化 grants.⁴⁴

Japan's commercial scholarly publishers earn their money differently — from textbooks, reference works, professional magazines and library agency work rather than from journal subscriptions. Maruzen-Yushodo, the largest academic agent, reported roughly ¥34.2bn of revenue in FY2026/1 with about 4,130 staff and some 280 outsourced library and museum operations, and is a subsidiary of the printing group DNP.²¹

Policy

How the system got here

Twenty-seven years of platform-building, followed by a sudden and largely unfunded open-access mandate, and then a hard turn to collective bargaining.

1999-10

J-STAGE launches with three journals

JST builds a national e-journal platform because Japanese societies cannot afford their own systems and are outsourcing to foreign publishers.⁴⁵

2011-04

JUSTICE is formed

The two library consortia merge into a single national negotiating body for electronic resources.⁴⁶

2012-03

JaLC accredited as a DOI registration agency

Japan gains its own DOI registration agency, jointly founded by JST, NII, NIMS and the National Diet Library.²⁵

2019-03

First J-STAGE medium-to-long-term strategy

The platform shifts from digitisation to strengthening journals and open access.⁴⁷

2019-08

China launches its journal cluster plan

The 中国科技期刊卓越行动计划 funds 285 projects with published per-journal grants of up to ¥5.2m RMB a year — a scale Japan does not match.⁴⁸

2020-09

Science Council of Japan calls for structural reform

Proposes flat-rate offset contracts, a national journal-publishing service corporation, and a Japanese-language citation index.¹⁸

2022-03

Jxiv preprint server and the DOAJ–J-STAGE partnership

Japan's first full-scale preprint server launches; DOAJ and JST begin systematically indexing J-STAGE journals.⁴⁰

2024-02

Cabinet Office adopts the immediate open-access policy

The 基本方針 requires immediate, zero-embargo green OA for peer-reviewed articles and underlying data from designated competitive funds.⁹

2024-05

J-STAGE passes 4,000 titles; strategy revised

Metadata quality and active dissemination are added as a fourth strategic pillar.⁴⁵

2024-06

Chemical Society of Japan moves its flagship journals to OUP

BCSJ and Chemistry Letters transfer to Oxford University Press from January 2024, continuing the delegation pattern.³³

2024-10

Implementing measures agreed; FAQ clarified

Interim concession: immediate free access without an explicit licence counts as compliance.⁹

2025-04

FY2025 funding rounds become the first subject to the mandate

KAKENHI, JST's 戦略的創造研究推進事業, AMED's 革新的先端研究開発支援事業 and 創発的研究支援事業 are in scope.⁹

2025-12

OASE+ replaces OASE for transformative-agreement talks

The RU11 research universities widen their negotiating group to cover five major publishers.¹³

2026-04

Full-text JATS XML deposit announced as mandatory

Journals must deposit current articles as full-text XML during FY2029; PDF deposit becomes optional.⁶

2026-08

~4 million Japanese repository records flow into OpenAlex

NII exposes IRDB metadata internationally under JPCOAR Schema v2.0.²⁷

2026-09

Elsevier and ACS read-and-publish agreements announced

Follows Springer Nature (Dec 2025) and Wiley (Aug 2026); the agreements remain opt-in and university-by-university.¹³

What the 2024 mandate does and does not do

In scope

Peer-reviewed articles in electronic journals, including the author-accepted manuscript, plus the underlying data that journal policy requires to be published. Japanese-language articles are covered: the obligation is not English-only. Immediate deposit with zero embargo into an institutional repository or equivalent infrastructure, findable through the NII Research Data Cloud, is the compliance route. Free immediate access on the journal site counts in the interim, even without an explicit licence.

Out of scope

Preprints, research reports, books, and non-peer-reviewed 紀要 content. Funds advertised in or before FY2024 are excluded, so the mandate binds only new grants. There is no national APC budget and no gold-open-access requirement, so publishers face no mandate to change their licences — only to tolerate repository deposit. That is why the policy has produced repository build-out rather than a licensing transformation.^9,49

Diagnosis

Eight structural problems

These are not eight separate failures. They are one failure — a system optimised for national digital access in 1999 that never converted that access into international visibility — seen from eight angles.

Problem 01

The quality–quantity scissors

Japan still produces the world's fifth-largest volume of research but only 1.7% of the most-cited papers. Because domestic journals are largely invisible internationally, Japanese authors publish abroad, which in turn starves the domestic journals of the best submissions. The two effects reinforce each other.¹⁴

Top-10% share: 6.0% (1999–2001) → 3.8% (2009–2011) → 2.0% (2019–2021) → 1.7% (2021–2023)

Problem 02

Free access is not open access

J-STAGE reports that more than 80% of its journals are free to read. But J-STAGE's own definition of an open-access journal requires an explicit reuse licence. In 2022 only 214 of 3,632 titles (6%) were true OA, against 2,943 (81%) that were merely free — a distinction that keeps most Japanese content out of text-mining, translation and reuse pipelines.⁶

6% true OA vs 81% merely free (September 2022)

Problem 03

Full-text XML: a 7.6% foothold

Only 281 of 3,705 current J-STAGE journals deposited full-text JATS XML in FY2025, against near-100% for overseas publishers. Without machine-readable full text, Japanese articles are poorly served by indexing, translation, citation analysis and AI retrieval. J-STAGE has responded by making full-text XML deposit mandatory during FY2029 and by providing a free conversion tool.⁶

281 of 3,705 current journals (7.6%) vs near-100% overseas

Problem 04

The money flows outward

Japanese universities spend roughly ¥43bn a year on foreign journal subscriptions and a further ~¥12.9bn on APCs, while the state's entire journal-publishing support programme disburses about ¥0.71bn. The country is a large net financier of foreign publishing infrastructure and a marginal investor in its own.³

¥43.0bn subscriptions + ¥12.9bn APCs vs ¥0.71bn of state publishing support

Problem 05

Policy without a budget

The February 2024 immediate-OA mandate is green-OA-based and carries no dedicated funding. Its measurable effect has been institutional policy adoption — 298 universities now have a formal OA policy, up by 83 in a single year — and a hard turn to collective bargaining, not a boom in Japanese open-access publishing.¹⁰

298 universities (36.5%) with an OA policy in FY2024, up from 171 (21.1%) in FY2022

Problem 06

Delegation has a price

Contract publishing delivered global visibility for Japan's best journals — all nine Japanese titles that sustained a Q1 position across 2016–2018 were published by major commercial houses. But editorial control, pricing and platform relationships sit abroad, and the arrangement gives Japan very little say over the economics of its own output.¹

9 of 9 sustained-Q1 journals were contract-published abroad

Problem 07

The university press squeeze

Between them, Japan's 24 university presses publish about 535 books a year — roughly what two or three large Western presses produce. The core state subsidy for scholarly monographs has fallen from just under ¥700m in FY2006 to ¥268m in FY2024, and commissioned publishing, not the book market, keeps the presses solvent.⁴³

学術図書 subsidy: ~¥700m (FY2006) → ¥370m (FY2008) → ¥268m (FY2024)

Problem 08

A shrinking domestic market

The Japanese publishing market has declined for four consecutive years and print fell below ¥1 trillion for the first time in 2025. E-book growth is almost entirely comics: text e-books are a ¥45.9bn market, 0.3% of the whole. Specialist books also carry structurally higher return rates than general trade titles.¹⁷

Total market ¥1,546.2bn in 2025 (−1.6%); print ¥964.7bn (−4.1%)

Comparison

Japan, China and South Korea

Three non-anglophone research systems, three different answers to the same problem: how to make national scholarship internationally visible. Japan chose delegation; China chose cash and consolidation; Korea chose platform.

Dimension	Japan	China	South Korea
Internationalisation strategy	Delegated to commercial publishers through 委託出版 contracts	State-directed journal clusters with per-journal cash grants	National platform (KoreaScience/KCI) plus journal tiering
Principal state instrument	KAKENHI 研究成果公開促進費 — ≈¥0.71bn total in FY2025, awarded to societies	中国科技期刊卓越行动计划 — 285 projects from 2019, up to ¥5.2m RMB per journal per year	KISTI platform operation and tiering of ~110 journals
Platform	J-STAGE — 4,396 titles from 2,728 organisations	No single national platform; journals spread across publishers and CNKI/Wanfang aggregators	KoreaScience and KCI operated by KISTI
Open-access posture	Immediate green OA mandated for designated funds from FY2025; no APC fund	OA rate above 20% by 2019, the highest of the four compared countries	OA rate just over 10% by 2019
Q1 journal share (2019 analysis)	More JIF journals than China, Korea or France — but the lowest Q1 ratio of the four; 15 Q1 titles in 2018	Conspicuously high Q1 share among the four	Rapidly growing presence; top-10 JIF titles from around 2013–2014
Structural weakness	Fragmentation: 2,728 organisations publishing, almost no consolidation, little international visibility	Dependence on state funding cycles; international editorial credibility still being built	Small domestic base relative to output; platform reach still limited

China's instrument is the 中国科技期刊卓越行动计划, launched in 2019 with 285 funded projects and published per-journal grants reaching ¥5.2m RMB a year for leading titles, with a second phase from 2024. Korea's is KISTI's operation of KoreaScience and the Korea Citation Index alongside tiering of roughly 110 journals. Japan's nearest equivalent, the KAKENHI 研究成果公開促進費, disbursed ¥0.71bn in total in FY2025.^48,50,2

Confidence

What is solid, what is partial, what is missing

Japanese academic publishing is unusually poorly served by published statistics for a G7 economy. Some of the most important quantities — society contract terms, academic print runs, the size of the scholarly market itself — are simply not public. This register states which claims in this profile rest on primary data and which do not.

J-STAGE FY2025 counts, XML ratio, download geography, FY2029 mandate

JST's own status presentation, July 2026, with a machine-readable table.

Primary

Bibliometric ranks and country shares (NISTEP 2025)

Official MEXT/NISTEP reports, August 2025, Web of Science Core Collection.

Primary

Crossref member counts and DOI volumes by Japanese members

Full paginated sweep of the Crossref members API for this profile; reproducible.

Measured

DOAJ country counts and Japanese licence/APC profile

DOAJ public API, September 2026. Note that DOAJ's search API rejects country queries; the working method is the API's journal records plus the public CSV.

Measured

JUSTICE and MEXT library-spend series

Consortium and ministry survey reports with published methodology.

Primary

AJUP membership, press-by-press 2025 title counts, market data

Association bulletins and the 出版科学研究所 release series.

Primary

University press financials

Only Chuo publishes a divisional P&L; Kyoto discloses revenue; most presses disclose nothing. Sector-wide revenue is unavailable.

Partial

Society–publisher contract terms and revenue splits

No Japanese society in this study publishes its contract terms. The direction of the arrangements is well documented; the economics are not.

Unavailable

Print runs for academic monographs

Not published by AJUP or by presses. AJUP does flag short-run titles (☆) in its bulletins, which is an implicit admission but not a figure.

Unavailable

A discrete Japanese STM or scholarly publishing market size

No official statistic isolates it. The publishing-market total and the library-spend series are the only usable proxies. Any single figure circulating for a Japanese STM market should be treated as an estimate of unknown derivation.

Unavailable

Elsevier Japan founding date and headcount; SAGE and World Scientific Japanese entities

Not confirmed from primary sources.

Unavailable

Current counts of Japanese journals in SCIE/SSCI/ESCI and Scopus; average JIF by country

Clarivate data are paywalled; the accessible 2019 analysis is the best available quartile evidence.

Unavailable

Journal-country distribution of Japanese-authored articles

OpenAlex does not support filtering works by the country of the publishing journal, so this profile does not report a figure for it. The related OA-structure and output-trend measurements use supported filters and were made directly.

Not measured

The 2024 policy documents' official short title

Several secondary sources cite a 2023 document titled 公的資金による学術論文等のオープンアクセス化に関する実施方針. No such document was found. The operative instruments are the Cabinet Office 基本方針 of 16 February 2024 and its implementing measures.

Corrected

A note on method: this profile was compiled from primary documents — corporate and government disclosures, association bulletins, platform operator presentations and standards documents — supplemented by direct measurement from the Crossref, OpenAlex and DOAJ public APIs. Where a figure could not be verified, it has been omitted rather than estimated. The most recent authoritative data available at the time of writing is from 2024–2026.

Sources

References

Numbered references, keyed to the superscripts used throughout. Entries marked “measured” in the confidence register are reproducible from the endpoints listed here.

1
棚橋佳子・辻幸子・野村紀匡, 「日本の学協会ジャーナル出版の現状」, 情報の科学と技術 69(11): 535–541 (2019). DOI 10.18919/jkg.69.11_535
Q1 count and persistence, OA rates, ESCI review outcomes, 委託出版 concentration.
https://www.jstage.jst.go.jp/article/jkg/69/11/69_535/_article/-char/ja/
2
JSPS, 科研費配分状況一覧（令和7年度新規採択分）, Dec 2025.
FY2025 whole-programme totals: 424 new awards, ¥502.8m; ¥711.7m including continuations.
https://www.jsps.go.jp/file/storage/kaken_27_kdata_g_4211/3-1-1_r7_1219.pdf
3
JUSTICE (大学図書館コンソーシアム連合), 2024年度契約状況調査結果報告, Mar 2025.
Consortium foreign-journal spend ¥43.0bn vs domestic ¥3.45bn (2024).
https://contents.nii.ac.jp/sites/default/files/justice/2025-03/2024_justice_results2.pdf
4
JUSTICE, 論文公表実態調査報告 (2024年度), 31 Mar 2025.
Estimated APC paid by Japanese-institution authors: ¥12.94bn in 2023, with publisher breakdown.
https://contents.nii.ac.jp/sites/default/files/justice/2025-04/2024_ronbunchosa.pdf
5
OpenAlex API — open-access structure by author country, 2023 (measured for this profile).
Open-access status composition of journal articles for Japan, China, the US, the UK, Germany, South Korea and France, and DOAJ-journal shares. Filter definitions follow OpenAlex field conventions.
https://api.openalex.org/works?filter=authorships.countries:jp,publication_year:2023,primary_location.source.type:journal&group_by=open_access.oa_status
6
JST, “J-STAGEの現況と全文XML登載必須化について”, Information Infrastructure Dept., presented 24 July 2026 (FY2025 year-end data, 31 Mar 2026).
Sole source for J-STAGE FY2025 counts, XML-readiness ratio, download geography, and the FY2029 full-text XML mandate.
https://files.speakerdeck.com/presentations/71adab6db6984179b2b8b68f19e3be95/%E6%8E%B2%E8%BC%89%E7%94%A8_J-STAGE%E3%81%AE%E7%8F%BE%E6%B3%81%E3%81%A8%E5%85%A8%E6%96%87XML%E7%99%BB%E8%BC%89%E5%BF%85%E9%A0%88%E5%8C%96%E3%81%AB%E3%81%A4%E3%81%84%E3%81%A6.pdf
7
AJUP, 新刊速報 2025年12月号 (cumulative calendar-2025 new-title table by press).
The only public, press-by-press output series for Japanese university presses.
https://www.ajup-net.com/wp/wp-content/uploads/2026/01/shinkan202512.pdf
8
中央大学, 2024年度財務・事業報告 (Chuo University Press divisional accounts, FY2024).
The only full P&L for a Japanese university press located: 87% of income from commissioned publishing.
https://www.chuo-u.ac.jp/uploads/2025/05/aboutus_overview_biz_overview_financial_results_2024_01.pdf
9
Cabinet Office, 統合イノベーション戦略推進会議, 「学術論文等の即時オープンアクセスの実現に向けた基本方針」(decided 16 Feb 2024); 実施にあたっての具体的方策 (21 Feb 2024); FAQ (rev. 8 Oct 2024).
The national immediate-OA mandate: scope, funders, embargo rules, exclusions.
https://www8.cao.go.jp/cstp/oa_houshin_faq.pdf
10
MEXT, 学術情報基盤実態調査 (令和7年度, published 24 Mar 2026; FY2024 actuals).
Library materials spend split print/electronic; OA and research-data policy adoption counts.
https://www.mext.go.jp/b_menu/houdou/mext_01610.html
11
ESAC Initiative, Transformative Agreement Registry: wiley2025justice.
67 universities, ~2,900 OA articles, capped, cost increase, not publicly disclosed.
https://esac-initiative.org/about/transformative-agreements/agreement-registry/wiley2025justice/
12
Elsevier press release, 12 Oct 2023 — Japan's largest transformative agreement.
57-university negotiating team, 140 interested institutions, opt-in per university.
https://www.elsevier.com/en-gb/about/press-releases/justice2023
13
OASE / OASE+ (Open Access for Scholarly Empowerment), news archive.
Transformative agreements announced Dec 2025 – Sep 2026 with Springer Nature, Wiley, ACS, Elsevier and T&F.
https://oase.jp/en/archives/news
14
MEXT/NISTEP, 科学技術指標2025 (調査資料-349) and 科学研究のベンチマーキング2025 (調査資料-350), both published 8 Aug 2025.
Bibliometric ranks and country shares, 1999–2001 through 2021–2023.
https://www.nistep.go.jp/archives/61221/
15
Crossref REST API — full member register and per-member DOI counts, retrieved for this profile.
All 33,849 members swept; DOI counts and issued-year breakdowns computed locally.
https://api.crossref.org/members
16
Japan Link Center (JaLC), 第12回 JaLC 対話集会資料, 2 Feb 2026 (data to end-Dec 2025).
86 full and 3,448 associate members; 14.14m cumulative DOIs; content-type mix.
https://japanlinkcenter.org/top/doc/jalc_taiwa12_mm01.pdf
17
全国出版協会・出版科学研究所, 出版指標 news release, 26 Jan 2026 (calendar 2025 estimates).
Total publishing market ¥1,546.2bn; print below ¥1 trillion for the first time.
https://shuppankagaku.com/wp/wp-content/uploads/2026/01/%E3%83%8B%E3%83%A5%E3%83%BC%E3%82%B9%E3%83%AA%E3%83%AA%E3%83%BC%E3%932601.pdf
18
日本学術会議, 提言「学術情報流通の大変革時代に向けた学術情報環境の再構築と国際競争力強化」, 28 Sept 2020.
The four-part reform proposal, incl. a journal-publishing service corporation and flat-rate offset contracts.
https://www.scj.go.jp/ja/info/kohyo/kohyo-24-t297-6-abstract.html
19
日本物理学会, PTEP page and 2024年度事業計画.
PTEP's chronic deficit after its JSPS OA grant ended; APC benchmarks; SCOAP3 participation.
https://www.jps.or.jp/books/ptep/index.php
20
大学出版部協会 (Association of Japanese University Presses), 私たちの組織 / Our Organization.
24 member presses as of June 2026; legal form history; FY2026 board.
https://www.ajup-net.com/watashitachinososhik/
21
丸善雄松堂, 数字で見る丸善雄松堂 (corporate data).
FY2026/1 revenue ≈ ¥34.2bn; ~4,130 staff; ~280 outsourced library operations.
https://yushodo.maruzen.co.jp/corp/data/
22
株式会社国際文献社, 沿革 (corporate history).
Society-secretariat outsourcing since 1995; J-STAGE support since 2002; the 2004 collapse of 学会事務センター.
https://bunken.co.jp/profile/history2/
23
中西印刷株式会社, English company profile.
Founded 1865; society-office contracting; OUP cooperation from 1999.
https://the.nacos.com/nakanishi/english.php
24
一般財団法人学会誌刊行センター (CAPJ), 財団概要.
Founded 1971 from the University of Tokyo Press's 20th-anniversary project.
http://www.capj.or.jp/gaiyo.html
25
JaLC, Japan Link Centerの歩み.
Founding in 2012 with JST, NII, NIMS and the National Diet Library; DataCite membership 2014.
https://japanlinkcenter.org/top/doc/jalc_taiwa10_pdko.pdf
26
NII, 国立情報学研究所概要 2025 (NII Summary 2025).
CiNii Research, Research Data Cloud, and PID integration.
https://www.nii.ac.jp/about/upload/NII_summary_2025.pdf
27
NII news release, 18 Aug 2026 — ~4 million Japanese repository records integrated into OpenAlex.
IRDB scale and JPCOAR Schema v2.0 exposure.
https://www.nii.ac.jp/news/upload/nii_newsrelease_20260818.pdf
28
JPCOAR, JAIRO Cloud (共同運用) 概要.
822 institutions at end-FY2025; fee-based since FY2017.
https://jpcoar.org/support/jairo-cloud/
29
オックスフォード大学出版局株式会社, 会社概要.
OUP Japan established 1 Nov 1957; represents 300+ Oxford Journals titles.
https://www.oupjapan.co.jp/ja/about/index.shtml
30
Springer Nature Japan, 会社情報; シュプリンガー・ジャパン corporate history.
Registered 25 Jan 1983; ~200 staff in Japan; exited Japanese-language publishing in 2012.
https://www.springernature.com/jp/aboutus/company-information
31
Physics World, “How IOP Publishing supports physicists in Japan”, 16 Mar 2018.
Tokyo office since 2002; publishing partner for JSAP (JJAP, APEX).
https://physicsworld.com/a/how-iop-publishing-supports-physicists-in-japan/
32
STM Association, STM Japan Chapter.
Membership and the annual STM–JST seminar for J-STAGE societies since 2017.
https://stm-assoc.org/who-we-are/stm-strategy-structure/stm-chapters/stm-japan-chapter/
33
日本化学会, BCSJ / Chemistry Letters OUP cooperation notice, 9 Jan 2024.
The 2024 transfer of Japan's flagship chemistry journals to Oxford University Press.
https://www.chemistry.or.jp/news/information/post-504.html
34
Wiley press release, 9 Sept 2013 — Cancer Science flips to Wiley Open Access from 1 Jan 2014.
The first Japanese journal of its size to convert to full OA.
https://www.wiley.com/WileyCDA/PressRelease/pressReleaseId-109507.html
35
日本農芸化学会, BBB 出版契約に関するお知らせ, 19 June 2020.
Taylor & Francis (2014) → Oxford University Press (2021) migration.
https://www.jsbba.or.jp/info/news/news_20200619.html
36
日本分析化学会, Analytical Sciences publication information (J-STAGE).
Springer Nature hosting from Vol. 38 (2022) with the editorial board retained by the society.
https://www.jstage.jst.go.jp/browse/analsci/_pubinfo/-char/ja
37
日本免疫学会, International Immunology information for scientists.
Society owns and edits; OUP publishes; no submission, page or colour charges.
https://www.jsi-men-eki.org/scientist/intlimmunology/
38
XSPA (CrossRef Japan) — JATS XML seminars and J-STAGE cooperation.
The practitioner community around JATS XML and Japanese scholarly publishing.
https://speakerdeck.com/xspa2012
39
DOAJ public journal metadata (API and CSV snapshot).
Country benchmarking and the licence/APC profile of Japanese OA journals — measured directly for this profile.
https://doaj.org/api/v4/docs
40
DOAJ blog, “Supporting the inclusion of J-STAGE journals in DOAJ”, 25 Mar 2022.
The J-STAGE–DOAJ indexing partnership, 33 (2020) → 64 (2022).
https://blog.doaj.org/2022/03/25/supporting-the-inclusion-of-j-stage-journals-in-doaj/
41
OpenAlex API — sources and works, retrieved for this profile.
Japanese research-output trend 2000–2024, measured as journal-type works with at least one Japan-affiliated author.
https://api.openalex.org/
42
JSPS, 令和6年度科学研究費助成事業審査結果の総括.
FY2024 学術図書 outcome: 516 applications, 172 awards, ¥267.7m.
https://www.jsps.go.jp/file/storage/kaken_0103_g_2966/r6_shinsa_soukatsu.pdf
43
AJUP, 要望書 (17 June 2008 request to MEXT and JSPS on the 研究成果公開促進費 budget).
The documented collapse of the academic-book subsidy from ~¥700m (FY2006) to ¥370m (FY2008).
https://www.ajup-net.com/20100114_152329662.html
44
JST, 2025年度英文誌「ジャーナルコンサルティング」募集要項.
Free consulting programme, FY2025 course list, and J-STAGE's definition of open access.
https://www.jstage.jst.go.jp/static/files/ja/journalconsulting_english_2025.pdf
45
JST, 科学技術振興機構報 No.1691, 8 May 2024 — J-STAGE 25th anniversary; 4,000-title milestone (1 May 2024).
Launch date, original motive, and 2024 milestone.
https://www.jst.go.jp/pr/info/info1691/pdf/info1691.pdf
46
JUSTICE, 2025年度活動報告, 31 Mar 2026.
Membership, negotiations with 48 publishers, 8 R&P and 2 APC-discount proposals for 2026.
https://contents.nii.ac.jp/sites/default/files/justice/2026-04/2025_JUSTICE_AnnualReport.pdf
47
JST, J-STAGE中長期戦略 (2019) and revised strategy + roadmap (May 2024); 審議まとめ (April 2026).
Strategic posture and the 2025–2029 roadmap.
https://www.jstage.jst.go.jp/static/pages/JstageStrategy/-char/ja
48
中国高校科技期刊研究会, 中国科技期刊卓越行动计划 2019年度入选项目公告, 22 Nov 2019.
285 projects and published per-journal annual grants, up to ¥5.2m RMB.
https://m.cujs.org.cn/site/content/7082.html
49
JST, “J-STAGE 発行機関向け「学術論文等の即時オープンアクセスの実現に向けた基本方針」への対応”, May 2025.
Practical guidance to Japanese publishers on complying with the 2024 immediate-OA policy.
https://www.jstage.jst.go.jp/static/files/ja/2025_immediate_OA_guide.pdf
50
KISTI, 학술지 유통환경 변화와 국내 학술지의 국제화 (KoreaScience / KCI and journal tiering).
Korea's platform-led internationalisation model.
https://repository.kisti.re.kr/