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For the Inventor, By the Inventor

Susono, Japan

Yasuhiko Higashiyama

This inventor holds 9 USPTO granted patents. Top assignee: Toyota Jidosha Kabushiki Kaisha. Active years: 1989-2004.

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

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

Calculating rank
USPTO Granted Patents = 9

% Patents Active = 88.9

Average Co-Inventor Count = 3.7

ph-index = 6

Forward Citations = 100(Granted Patents)


Location History:

  • Susono, JP (1989 - 1994)
  • Nagoya, JP (1998 - 2004)

Company Filing History:

goldMedal9 out of 39,010 
 
Toyota Jidosha Kabushiki Kaisha
 patents

Years Active: 1989-2004

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9 patents (USPTO):Explore Patents
1. 6832150 - Method and apparatus for controlling diesel engine (2004-12-14),
2. 5807209 - Vehicle lock-up clutch slip control apparatus wherein slip control (1998-09-15),
3. 5287773 - Apparatus for controlling engine brake force during vehicle running on (1994-02-22),
4. 5176592 - Speed changing gear device having two independent gear assemblies (1993-01-05),
5. 5122103 - Speed changing gear device having two independent gear assemblies (1992-06-16),
6. 5057063 - Automatic transmission (1991-10-15),
7. 4985011 - Automatic transmission (1991-01-15),
8. 4916980 - Planetary gear type speed change device to provide six forward speed (1990-04-17),
9. 4872376 - Transmission for a vehicle having improved performance for shifting (1989-10-10),

Title: Yasuhiko Higashiyama: Innovator in Diesel Engine Control

Introduction

Yasuhiko Higashiyama is a prominent inventor based in Susono, Japan. He has made significant contributions to the field of automotive engineering, particularly in diesel engine control systems. With a total of 9 patents to his name, Higashiyama continues to push the boundaries of innovation in the automotive industry.

Latest Patents

Higashiyama's latest patents include a method and apparatus for controlling diesel engines. This method involves an injected fuel quantity reduction process aimed at preventing black smoke based on engine speed. Additionally, it addresses shift shock during the operation of an automatic transmission. The innovative approach allows for the inhibition or reduction of the injected fuel quantity during critical moments, enhancing engine performance and efficiency. Another notable patent is the vehicle lock-up clutch slip control apparatus. This apparatus is designed to control the lock-up clutch in a fluid-filled power transmitting device of a motor vehicle. It features a slip control device that manages the clutch's pilot pressure during vehicle deceleration, ensuring that the actual slip amount aligns with a predetermined target value.

Career Highlights

Higashiyama is currently employed at Toyota Jidosha Kabushiki Kaisha, a leading automotive manufacturer. His work at Toyota has allowed him to develop and refine his innovative ideas, contributing to the company's reputation for excellence in engineering and technology.

Collaborations

Throughout his career, Higashiyama has collaborated with notable colleagues, including Toshiyuki Asada and Yasunori Nakawaki. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of groundbreaking technologies.

Conclusion

Yasuhiko Higashiyama is a distinguished inventor whose work in diesel engine control has made a lasting impact on the automotive industry. His innovative patents and contributions to Toyota exemplify his commitment to advancing automotive technology.

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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