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USPTO Data Jan 1 1976 - Oct 20 2026
3 Patents
#3,548 in Tokyo
#8,932 in Japan
Nippon Keiki Works, Ltd.
Forward Citations = 48
8 inventors:
Nippon Keiki Works, Ltd.
Forward Citations = 48
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8 inventors (with patents filed for the assignee):
Satoshi Nakamura (2 out of 70 patents)
Hiroyuki Igawa (1 out of 8 patents)
Katsumi Sato (1 out of 25 patents)
4. Mikihiro Terashima (1 out of 1 patent)
5. Yoshihiro Egawa (1 out of 1 patent)
6. Teruo Simizu (1 out of 1 patent)
7. Reizo Naruse (1 out of 1 patent)
8. Kunihiko Maruyama (1 out of 1 patent)
3 patents:
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nippon Keiki Works, Ltd.. Retrieved from https://idiyas.com/company/nippon-keiki-works
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]
Data Sources: USPTO Patent Grant XML, Patent Center, EPO & CIPO • Normalized by IDiyas Innovation Graph. Methodology & provenance architecturePlease report any incorrect information to [email protected]