Open Access statistics for Research Organization of Information and Systems, Japan, covering academic research published from 2000 to 2025.
Open Access Percentage
54%
Total
Publications
23K
Total Open
Publications
13K
Total
Citations
751K
Open Access
Percentage
54%
Total
Publications
23K
Total Open
Publications
13K
Total
Citations
751K
Breakdown
Publisher Open
20%
Both
21%
Other Platform Open
11%
Closed
48%
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 46%
4.3K
Hybrid 18%
1.7K
No Guarantees 36%
3.4K
Other Platform Open
Institution 58%
4.3K
Domain 40%
3K
Preprint 22%
1.6K
Other Internet 11%
797
Public 6%
423
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
PubMed Central | Domain | 3K |
doaj.org OAI-PMH Repository | Institution | 2K |
arXiv | Preprint | 1.1K |
National Institute of Informatics | Institution | 840 |
DOI | Other Internet | 694 |
bioRxiv | Preprint | 395 |
Le Centre pour la Communication Scientifique Directe - HAL - Diderot | Institution | 391 |
Figshare | Public | 389 |
Unknown Repository | Other Internet | 221 |
University of Edinburgh | Institution | 185 |
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