Japan

Japan is an island country in East Asia. Located in the Pacific Ocean off the northeast coast of the Asian mainland, it is bordered to the west by the Sea of Japan, the Sea of Okhotsk in the north, and the East China Sea in the south. Derived from Wikipedia licensed CC-BY-SA.

Open Access statistics for Japan, covering academic research published from 2000 to 2025. Read More.

Open Access Percentage

50%

Total
Publications

Total Open
Publications

Total
Citations

86M

Open Access
Percentage

50%

Total
Publications

Total Open
Publications

Total
Citations

86M

Wikipedia

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Breakdown

Publisher Open

29%

Both

15%

Other Platform Open

Closed

50%

Percentage of Open Access over time

Publisher Open

Both

Other Platform Open

Closed

Volume of Open Access over time

Open

Closed

Publisher Open

OA Journal 31%

554K

Hybrid 17%

303K

No Guarantees 52%

936K

Other Platform Open

Institution 57%

499K

Domain 49%

424K

Preprint 15%

130K

Other Internet 13%

112K

Public 3%

24K

Other Platform Locations

Name	Platform Type	Publications
PubMed Central	Domain	429K
doaj.org OAI-PMH Repository	Institution	265K
National Institute of Informatics	Institution	129K
DOI	Other Internet	100K
arXiv	Preprint	89K
Office of Scientific and Technical Information	Institution	22K
Research Square	Preprint	21K
Unknown Repository	Other Internet	20K
Figshare	Public	20K
Europe PMC	Domain	20K

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Data updated 12 August 2026