Saitama, Japan

Kazunori Umezawa

This inventor holds 3 USPTO granted patents. Top assignee: Toyo Denso Kabushiki Kaisha. Active years: 1996-2000.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazunori Umezawa. Retrieved from https://idiyas.com/inventor/kazunori-umezawa

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 = 2.0

ph-index = 2

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1996-2000

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3 patents (USPTO):Explore Patents

Title: Kazunori Umezawa: Innovator in Torque Converter Technology

Introduction

Kazunori Umezawa is a notable inventor based in Saitama, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of shift changing devices for torque converters. With a total of 3 patents to his name, Umezawa's work showcases his innovative approach to engineering challenges.

Latest Patents

Umezawa's latest patents include a shift changing device for torque converters. This device features a shift lever that is connected to a head member, allowing it to swing freely in multiple directions. The design incorporates a click ball that engages with a click groove, enabling the shift lever to be positioned in various states such as neutral, forward, and reverse. Additionally, the engaging plate on the shift lever controls its movement, ensuring that it cannot be continuously swung unless specific conditions are met. Another patent involves a shift switching device that utilizes a slider operated by a lever, which includes neutral, forward, and reverse recesses. This design ensures that actuating members enter the corresponding recesses, allowing for effective control of the shift mechanism.

Career Highlights

Kazunori Umezawa is currently employed at Toyo Denso Kabushiki Kaisha, where he continues to innovate in the automotive sector. His work has been instrumental in enhancing the functionality and reliability of torque converter systems. Umezawa's dedication to his craft is evident in the practical applications of his inventions.

Collaborations

Throughout his career, Umezawa has collaborated with talented individuals such as Kiyoshi Sashida and Takehide Sato. These partnerships have contributed to the successful development of his innovative technologies.

Conclusion

Kazunori Umezawa stands out as a prominent inventor in the automotive industry, particularly for his advancements in torque converter technology. His patents reflect a commitment to innovation and engineering excellence. Umezawa's contributions continue to influence the field, showcasing the importance of creativity in technological development.

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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