Hitachinaka, Japan

Kazuo Nagayama

This inventor holds 12 USPTO granted patents and 3 EPO patents. Top assignees: Hitachi Car Engineering Co., Ltd., Hitachi, Ltd., Other. Active years: 1999-2011.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuo Nagayama. Retrieved from https://idiyas.com/inventor/kazuo-nagayama

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


% Patents Active = 83.3


Average Co-Inventor Count = 4.3

ph-index = 6

Forward Citations = 141(Granted Patents)


Location History:

  • Ibaraki, JP (2006)
  • Tokyo, JP (2007)
  • Hitachinaka, JP (1999 - 2011)

Company Filing History:


Years Active: 1999-2011

Loading Chart...
Loading Chart...
12 patents (USPTO):Explore Patents

Title: Kazuo Nagayama: Innovator in Engine Control Technologies

Introduction

Kazuo Nagayama is a prominent inventor based in Hitachinaka, Japan. He has made significant contributions to the field of engine control technologies, holding a total of 12 patents. His innovative work focuses on improving the efficiency and accuracy of throttle control systems in vehicles.

Latest Patents

Nagayama's latest patents include an air flow rate control apparatus and a motor driving type throttle apparatus. The air flow rate control apparatus is designed to enhance the accuracy of position control for engine throttle valves by reducing the number of component parts. This innovation also integrates wiring and aggregates connectors within a sealed space, minimizing mechanical and electrical hysteresis. The motor driving type throttle apparatus utilizes an electric actuator to control the throttle valve, featuring a simplified cover that houses the throttle position sensor and electronic control module. This design allows for compact assembly and high reliability at a lower fabrication cost.

Career Highlights

Throughout his career, Kazuo Nagayama 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 developing advanced engine control systems.

Collaborations

Nagayama has collaborated with esteemed colleagues, including Yasushi Sasaki and Yasuhiro Kamimura. Their combined efforts have led to significant advancements in the field of automotive technology.

Conclusion

Kazuo Nagayama's innovative contributions to engine control technologies have established him as a key figure in the automotive industry. His patents reflect a commitment to enhancing vehicle performance and reliability through advanced engineering solutions.

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]
Loading…