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USPTO Data Jan 1 1976 - Oct 27 2026
4 Patents
#41 in Okayama
#7,590 in Japan
Nakashima Propeller Co., Ltd.
Forward Citations = 229
14 inventors:
Nakashima Propeller Co., Ltd.
Calculating rank
% Expired Patents = 25.0
EPO Patents = 1
Forward Citations = 229
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14 inventors (with patents filed for the assignee):
Keitaro Yamamoto (3 out of 4 patents)
Koichi Kuramoto (2 out of 4 patents)
Toru Suguro (2 out of 2 patents)
4. Mamoru Mitsuishi (1 out of 5 patents)
5. Kouichi Kuramoto (1 out of 2 patents)
6. Hiroyasu Ikegami (1 out of 1 patent)
7. Yukio Horiuchi (1 out of 1 patent)
8. Shinichiro Takayama (1 out of 1 patent)
9. Atsuhito Seki (1 out of 1 patent)
10. Shigeki Momohara (1 out of 1 patent)
11. Toshiyasu Nakamura (1 out of 1 patent)
12. Atsushi Tanji (1 out of 1 patent)
13. Shinichi Warisawa (1 out of 5 patents)
14. Takayuki Inoue (1 out of 2 patents)
15. Yukio Horiuchi (0 patent)
4 patents:
Company Overview
Nakashima Propeller Co., Ltd. is a leading manufacturer of marine propellers, established in 1931. With decades of experience and cutting-edge technology, they provide high-quality propellers that ensure optimal performance and efficiency for various types of vessels. Nakashima Propeller is globally recognized for its reliable products and exceptional customer service.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Nakashima Propeller Co., Ltd.. Retrieved from https://idiyas.com/company/nakashima-propeller-company
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]
1 patent (EPO):
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]