Hitachinaka, Japan

Shigeo Tamaki

This inventor holds 10 USPTO granted patents. Top assignees: Hitachi, Ltd., Hitachi Car Engineering Co., Ltd., Hitachi Engineering Co., Ltd.. Active years: 1990-2008.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Shigeo Tamaki. Retrieved from https://idiyas.com/inventor/shigeo-tamaki

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


% Patents Active = 80.0

Average Co-Inventor Count = 1.8

ph-index = 5

Forward Citations = 74(Granted Patents)


Location History:

  • Katsuta, JP (1990 - 1996)
  • Hitachinaka, JP (1997 - 2008)

Company Filing History:


Years Active: 1990-2008

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10 patents (USPTO):Explore Patents

Title: Shigeo Tamaki: Innovator in Throttle Body Technology

Introduction

Shigeo Tamaki is a prominent inventor based in Hitachinaka, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of throttle body systems. With a total of 10 patents to his name, Tamaki's work has had a lasting impact on the industry.

Latest Patents

One of Tamaki's latest patents focuses on a lightweight, low-cost throttle body and throttle valve. Both components are formed of resins, addressing the issue of excessively large gap formation. The design incorporates circumferentially oriented filler within the resin, which helps to equalize the radial linear expansion coefficient of the throttle valve with that of the bore. Additionally, grooves are formed on concentric circles in the throttle valve to enhance the orientation of the filler. This innovative approach allows for the creation of a throttle valve by impregnating an aggregate of circumferentially arranged filler with resin and curing it. Furthermore, a rib is strategically placed near the throttle shaft to control molding shrinkage, ensuring minimal roundness of the bore.

Career Highlights

Throughout his career, Shigeo Tamaki has worked with notable companies such as Hitachi, Ltd. and Hitachi Car Engineering Co., Ltd. His experience in these organizations has contributed to his expertise in automotive technologies and innovations.

Collaborations

Tamaki has collaborated with esteemed colleagues, including Shigeru Tokumoto and Yoshikatsu Hashimoto. Their combined efforts have further advanced the development of innovative automotive solutions.

Conclusion

Shigeo Tamaki's contributions to throttle body technology exemplify his dedication to innovation in the automotive industry. His patents reflect a commitment to improving performance and efficiency in vehicle systems.

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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