Yokosuka, Japan

Shunji Utsumi

This inventor holds 2 USPTO granted patents. Top assignees: Nissan Motor Company Limited, Ohi Seisakusho Co., Ltd.. Active years: 1984-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shunji Utsumi. Retrieved from https://idiyas.com/inventor/shunji-utsumi

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 2

Forward Citations = 45(Granted Patents)


Company Filing History:


Years Active: 1984-1985

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2 patents (USPTO):Explore Patents

Title: Innovations by Shunji Utsumi: A Pioneer in Automotive Locking Mechanisms

Introduction: Shunji Utsumi is a noted inventor based in Yokosuka, Japan, recognized for his contributions to automotive locking systems. With a total of two patents to his name, Utsumi's work reflects a commitment to enhancing safety and functionality in vehicle design.

Latest Patents: Utsumi's most recent inventions include a "Door Lock Arrangement for Automotive Vehicle" and a "Child Proof Door Locking Device." The door lock arrangement addresses the challenge of vehicles without a pillar for door engagement by introducing locks at the top and bottom corners, along with a central mechanism that enables both keyless locking and self-cancellation features. Meanwhile, his child-proof locking device is designed for automotive doors, integrating a base plate, inside and outside levers, and devices that ensure the latching device remains inactive when necessary. This innovative solution also features a child-proof lever that disengages the system when in a secure position.

Career Highlights: Shunji Utsumi's career includes significant tenures at renowned companies such as Nissan Motor Company Limited and Ohi Seisakusho Co., Ltd. His innovative spirit has led to practical advancements in vehicle security systems, contributing to safer automotive experiences.

Collaborations: Throughout his career, Utsumi has collaborated with esteemed colleagues, including Takayo Chikaraishi and Issei Miyamoto. These partnerships have fostered a creative environment leading to groundbreaking innovations in vehicle locking mechanisms.

Conclusion: As an inventor, Shunji Utsumi has made substantial contributions to automotive safety through his patents. His innovative spirit and collaboration with industry professionals demonstrate the importance of creativity and teamwork in the realm of invention. Utsumi's work continues to influence the evolution of secure automotive technologies.

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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