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 and extends from the Sea of Okhotsk in the north to 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 2024. Read More.

Open Access Percentage

45%

Total
Publications

3.7M

Total Open
Publications

1.6M

Total
Citations

75M

Open Access
Percentage

45%

Total
Publications

3.7M

Total Open
Publications

1.6M

Total
Citations

75M

Wikipedia

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Breakdown

Publisher Open

29%

Both

12%

Other Platform Open

Closed

56%

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%

466K

Hybrid 19%

288K

No Guarantees 50%

740K

Other Platform Open

Domain 57%

332K

Institution 26%

152K

Other Internet 18%

107K

Preprint 16%

91K

Public 3%

18K

Other Platform Locations

Name	Platform Type	Publications
PubMed Central	Domain	331K
DOI	Other Internet	95K
arXiv	Preprint	89K
Europe PMC	Domain	25K
U.S. Department of Energy Office of Scientific and Technical Information - OSTI OAI	Institution	21K
Le Centre pour la Communication Scientifique Directe - HAL - Diderot	Institution	16K
Figshare	Public	15K
Unknown Repository	Other Internet	13K
Kyoto University - Kyoto University Research Information Repository	Institution	12K
DANS - Data Archiving and Networked Services	Institution	9.1K

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Data updated 18 August 2025