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For the Inventor, By the Inventor

Atsugi, Japan

Kazuhiro Higashiyama

This inventor holds 11 USPTO granted patents. Top assignee: Nissan Motor Company Limited. Active years: 1981-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuhiro Higashiyama. Retrieved from https://idiyas.com/inventor/kazuhiro-higashiyama

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

USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 1.4

ph-index = 8

Forward Citations = 221(Granted Patents)


Location History:

  • Atsugi, JP (1981 - 1983)
  • Ebina, JP (1986 - 1987)
  • Kanagawa, JP (1983 - 1990)

Company Filing History:

goldMedal11 out of 13,420 
 
Nissan Motor Company Limited
 patents

Years Active: 1981-1990

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11 patents (USPTO):Explore Patents
1. 4903663 - Fuel combustion control apparatus for an engine (1990-02-27),
2. 4690124 - Spark control system for an engine (1987-09-01),
3. 4630584 - Fuel octane responsive internal combustion engine ignition system (1986-12-23),
4. 4410938 - Computer monitoring system for indicating abnormalities in execution of (1983-10-18),
5. 4402217 - Electronic engine control system with checking unit for sensors and (1983-09-06),
6. 4383515 - Electronic fuel injection control system for an internal combustion (1983-05-17),
7. 4375208 - Idling speed controlling system for an internal combustion engine (1983-03-01),
8. 4351050 - Fail-safe control computer (1982-09-21),
9. 4339801 - Automatic control system for method and apparatus for checking devices (1982-07-13),
10. 4319327 - Load dependent fuel injection control system (1982-03-09),
11. 4276866 - Computer-controlled exhaust gas recirculation system for internal (1981-07-07),

Title: Kazuhiro Higashiyama: Innovator in Engine Technology

Introduction

Kazuhiro Higashiyama is a prominent inventor based in Atsugi, Japan. He has made significant contributions to engine technology, holding a total of 11 patents. His work focuses on improving fuel combustion control and spark control systems in engines, showcasing his expertise in automotive engineering.

Latest Patents

One of Higashiyama's latest patents is a fuel combustion control apparatus for an engine. This innovative device determines ignition advance angles based on a regular map or a high-octane map. The system increments the current advance angle on the regular map as long as knocking is absent within a predetermined engine speed range. The regular map switches to the high-octane map only when the advance angle meets specific criteria, preventing hunting between the two maps. Additionally, the current advance angle on the high-octane map is decremented when knocking occurs, ensuring optimal performance during engine restarts.

Another notable patent is a spark control system for an engine. This system involves a crankshaft and cylinders, with each cylinder associated with an ignition coil and a power transistor. Reference signals are generated at specific crank angles for each cylinder. The cylinders are grouped, and during engine start, sparks are generated simultaneously in the cylinders of a common group. This innovative approach enhances the efficiency and reliability of engine ignition.

Career Highlights

Kazuhiro Higashiyama is currently employed at Nissan Motor Company Limited, where he continues to develop cutting-edge technologies in the automotive sector. His work has significantly impacted engine performance and efficiency, making him a valuable asset to the company.

Collaborations

Higashiyama has collaborated with notable coworkers, including Akio Hosaka and Katsumi Hosoya. Their combined expertise has contributed to the advancement of engine technology at Nissan.

Conclusion

Kazuhiro Higashiyama is a distinguished inventor whose work in engine technology has led to numerous patents and innovations. His contributions continue to shape the future of automotive engineering, demonstrating the importance of innovation in this field.

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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