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USPTO Data Jan 1 1976 - Jan 6 2026
906 Patents
#29 in Osaka
#236 in Japan
#1,088 in the World
Tsubakimoto Chain Company
Forward Citations = 7,415
603 inventors:
Tsubakimoto Chain Company
EPO Patents = 56
Trademarks = 39
Forward Citations = 7,415
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603 inventors (with patents filed for the assignee):
Yuji Kurematsu (71 out of 74 patents)
Shoichiro Komiya (66 out of 67 patents)
Osamu Yoshida (43 out of 48 patents)
4. Masahiko Konno (38 out of 39 patents)
5. Tadasu Suzuki (34 out of 34 patents)
6. Masaaki Ikeda (32 out of 32 patents)
7. Makoto Kanehira (27 out of 27 patents)
8. Hiroshi Hashimoto (26 out of 68 patents)
9. Katsutoshi Shibayama (25 out of 25 patents)
10. Takayuki Matsuda (24 out of 25 patents)
11. Shigekazu Fukuda (24 out of 24 patents)
12. Masao Maruyama (24 out of 24 patents)
13. Akihiko Utaki (23 out of 23 patents)
14. Hitoshi Ohara (22 out of 22 patents)
15. Shunji Sakura (22 out of 23 patents)
Core Competencies:
Cam Clutch
Chain Drive System
Low-Temperature Storage
Chain Tensioner
Selectable Clutch
Sprocket
Vehicle Parking Lock
Guiding Device
Silent Chain
Check Valve
Conveyance Chain
Transfer Device
906 patents:
Tsubakimoto Chain Company is a global leader in the design, development, and manufacturing of power transmission products and systems. With over a hundred years of experience, Tsubakimoto offers a wide range of chains, sprockets, bushings, and other mechanical components for various industries including automotive, agriculture, construction, and more. The company is known for its innovation, quality, and reliability, delivering high-performance solutions to meet the diverse needs of customers worldwide.
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56 patents (EPO):
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