Okazaki, Japan

Teruo Koyama

This inventor holds 3 USPTO granted patents. Top assignees: Jidosha Kiki Co., Ltd., Koyo Seiko Kabushiki Kaisha, Mitsubishi Jidosha Kogyo Kabushiki Kaisha. Active years: 1985-1989.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Teruo Koyama. Retrieved from https://idiyas.com/inventor/teruo-koyama

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile


% Patents Active = 100.0

Average Co-Inventor Count = 2.3

ph-index = 3

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 1985-1989

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3 patents (USPTO):Explore Patents

Title: Teruo Koyama: Innovator in Steering Mechanisms

Introduction

Teruo Koyama is a notable inventor based in Okazaki, Japan. He has made significant contributions to the field of automotive engineering, particularly in steering mechanisms. With a total of 3 patents to his name, Koyama's work has influenced the design and functionality of vehicle steering systems.

Latest Patents

Koyama's latest patents include a drive mechanism for a tiltable steering column. This innovative mechanism features a movable bracket that is operatively connected to a drive source, allowing it to be adjusted to a desired angular position. The design includes an upper jacket that supports an upper shaft with a steering wheel attached. The bracket is pivotally supported by a fixed bracket on the vehicle, while the other end pivots on a nut member that engages a lead screw through an eccentric bearing assembly. This assembly facilitates angular movement as the nut member is moved linearly by the lead screw's rotation.

Another significant patent is the steering gear mechanism, which combines a housing with a rotatable pinion shaft and a slidable rack bar. The rack bar is designed to engage with the pinion and features a friction device that creates varying levels of frictional force. This design enhances the steering experience by providing a larger frictional force in the neutral position and a smaller force during normal steering operations.

Career Highlights

Throughout his career, Teruo Koyama has worked with prominent companies in the automotive industry, including Jidosha Kiki Co., Ltd. and Koyo Seiko Kabushiki Kaisha. His experience in these organizations has allowed him to develop and refine his innovative ideas in steering technology.

Collaborations

Koyama has collaborated with notable colleagues such as Masao Arino and Yoshiyuki Nakamura. Their combined expertise has contributed to the advancement of automotive steering mechanisms.

Conclusion

Teruo Koyama's contributions to the field of automotive engineering, particularly in steering mechanisms, have made a lasting impact. His innovative patents and collaborations highlight his dedication to improving vehicle functionality and safety.

Profile summary based on public USPTO records.
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]
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