Nihon Dempa Kogyo (Japan)
Nihon Dempa Kogyo Co., Ltd. or NDK is one of the world's largest quartz crystal companies, based in Shibuya, Tokyo, Japan. Using its synthetic quartz crystals, NDK produces crystal-related products such as crystal devices and ultrasonic transducers for medical use. Derived from Wikipedia licensed CC-BY-SA.
Open Access statistics for Nihon Dempa Kogyo (Japan), Japan, covering academic research published from 2001 to 2025. Read More.
Open Access Percentage
32%
Total
Publications
130
Total Open
Publications
42
Total
Citations
2.4K
Open Access
Percentage
32%
Total
Publications
130
Total Open
Publications
42
Total
Citations
2.4K
Breakdown
Publisher Open
23%
Both
6%
Other Platform Open
3%
Closed
68%
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 27%
10
Hybrid 22%
8
No Guarantees 51%
19
Other Platform Open
Institution 67%
8
Domain 25%
3
Preprint 17%
2
Other Internet 17%
2
Public 0%
0
Other Platform Locations
Name | Platform Type | Publications |
|---|---|---|
White Rose University Consortium | Institution | 3 |
PubMed Central | Domain | 3 |
doaj.org OAI-PMH Repository | Institution | 3 |
University of Bristol | Institution | 2 |
DOI | Other Internet | 2 |
University of Padua | Institution | 1 |
Research Square | Preprint | 1 |
National Institute of Informatics | Institution | 1 |
medRxiv | Preprint | 1 |
Massachusetts Institute of Technology | Institution | 1 |