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USPTO Data Jan 1 1976 - Oct 6 2026
418 Patents
#6 in Aichi
#427 in Japan
#2,252 in the World
Okuma Corporation
Forward Citations = 2,073
239 inventors:
Okuma Corporation
% Expired Patents = 20.1
EPO Patents = 4
Trademarks = 1
Forward Citations = 2,073
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239 inventors (with patents filed for the assignee):
Yasukazu Hayashi (27 out of 29 patents)
Masayuki Nashiki (25 out of 52 patents)
Shoichi Morimura (20 out of 20 patents)
4. Tetsuya Matsushita (19 out of 19 patents)
5. Satoshi Eguchi (16 out of 16 patents)
6. Tomoharu Ando (13 out of 13 patents)
7. Takashi Norihisa (13 out of 13 patents)
8. Makoto Yoshida (12 out of 12 patents)
9. Hiroshi Ueno (12 out of 83 patents)
10. Atsushi Ieki (12 out of 13 patents)
11. Motozumi Yura (11 out of 11 patents)
12. Kiyoshi Yoshino (11 out of 11 patents)
13. Takumi Hongo (10 out of 10 patents)
14. Yoichi Kawai (10 out of 10 patents)
15. Yuji Mizoguchi (9 out of 9 patents)
Core Competencies:
Machining Accuracy
Error Compensation
Control Devices
Feed Axis Monitoring
Three-Dimensional Processing
Numerical Control
Abnormality Diagnosis
Thermal Displacement
Cutting Fluid Systems
Servo Control
Data Collection
Motion Error
418 patents:
Company Overview
Okuma Corporation, headquartered in Aichi, Japan, specializes in the development and manufacturing of advanced machine tools. The company is recognized for its innovations in machining accuracy and error compensation, enhancing the precision and efficiency of manufacturing processes. Key technology areas include control devices, feed axis monitoring, and three-dimensional processing, alongside expertise in numerical control and abnormality diagnosis. Okuma's commitment to addressing thermal displacement issues further solidifies its position as a leader in the machine tool industry.
Profile summary synthesized from public USPTO records and patent filings.
IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Okuma Corporation. Retrieved from https://idiyas.com/company/okuma
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]
4 patents (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]