
Nippon Kaiji Kyokai, also known by it s brand name ClassNK, is a non-profit, non-governmental organization ship classification society. ClassNK is one of the seven founding members of the International Association of Classification Societies, otherwise known as IACS. Derived from Wikipedia licensed CC-BY-SA.
Open Access statistics for ClassNK, Japan, covering academic research published from 2000 to 2025. Read More.
Open Access Percentage
54%
Total
Publications
413
Total Open
Publications
222
Total
Citations
4K
Open Access
Percentage
54%
Total
Publications
413
Total Open
Publications
222
Total
Citations
4K
Breakdown
Publisher Open
42%
Both
11%
Other Platform Open
1%
Closed
46%
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 20%
44
Hybrid 32%
69
No Guarantees 48%
104
Other Platform Open
Institution 86%
43
Domain 32%
16
Other Internet 20%
10
Preprint 2%
1
Public 2%
1
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
doaj.org OAI-PMH Repository | Institution | 32 |
PubMed Central | Domain | 16 |
DOI | Other Internet | 8 |
National Institute of Informatics | Institution | 5 |
Technical University of Denmark | Institution | 4 |
Office of Scientific and Technical Information | Institution | 4 |
University of Oslo | Institution | 3 |
Europe PMC | Domain | 3 |
Unknown Repository | Other Internet | 2 |
Universitat Politècnica de Catalunya | Institution | 2 |