Jtekt Corporation, headquartered in Kariya, Japan, specializes in advanced steering control systems and related automotive technologies. The company is recognized for its innovation in steering control devices, motor control devices, and vehicle control methods, contributing significantly to the evolution of steer-by-wire systems. Jtekt also develops critical components such as constant velocity joints, thrust bearings, and tapered roller bearings, positioning itself as a key player in the automotive engineering sector, with a focus on enhancing vehicle performance and safety.

Profile summary synthesized from public USPTO records and patent filings.

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USPTO Data Jan 1 1976 - Oct 20 2026

2,468 Patents

#4 in Kariya

#101 in Japan

#399 in the World

Kariya, Japan

Jtekt Corporation

Forward Citations = 6,345

2,034 inventors:

Terutaka Tamaizumi (65 out of 69 patents)

Shigeo Kamamoto (58 out of 60 patents)

Takashi Kodera (57 out of 57 patents)

4. Junji Murata (49 out of 49 patents)

5. Yuji Fujita (42 out of 44 patents)

IDiyas Innovation Intelligence. (2026). Company Patent Portfolio: Jtekt Corporation. Retrieved from https://idiyas.com/company/jtekt

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]

2 patents (CIPO):

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]

1,706 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]