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For the Inventor, By the Inventor

Toyota, Japan

Yoshiya Ishii

This inventor holds 6 USPTO granted patents. Top assignees: Nippondenso Co., Ltd., Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1977-1985.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yoshiya Ishii. Retrieved from https://idiyas.com/inventor/yoshiya-ishii

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

USPTO Granted Patents = 6

% Patents Active = 100.0

Average Co-Inventor Count = 3.6

ph-index = 6

Forward Citations = 59(Granted Patents)


Location History:

  • Toyota, JA (1977)
  • Toyota, JP (1980 - 1985)

Company Filing History:

goldMedal6 out of 3,252 
 
Nippondenso Co., Ltd.
 patents
silverMedal1 out of 1,838 
 
Toyota Jidosha Kogyo Kabushiki Kaisha
 patents
where one patent can have more than one assignee

Years Active: 1977-1985

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6 patents (USPTO):Explore Patents
1. 4495914 - Electric governor (1985-01-29),
2. 4391241 - Stopping device for engine supplied with fuel by fuel injection pump (1983-07-05),
3. 4322174 - Cam shaft locking device for fuel injection pump (1982-03-30),
4. 4319550 - Engine stop apparatus (1982-03-16),
5. 4184459 - Fuel injection system for internal combustion engine (1980-01-22),
6. 4058101 - Control apparatus for diesel engine (1977-11-15),

Title: Yoshiya Ishii: Innovator in Fuel Injection Technology

Introduction

Yoshiya Ishii is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of fuel injection technology, holding a total of 6 patents. His work has been instrumental in advancing the efficiency and functionality of fuel injection systems in automotive applications.

Latest Patents

One of Ishii's latest patents is the Electric Governor. This innovative device utilizes a solenoid type electromagnetic actuator to drive the fuel injection regulating member of a fuel injection pump. The design includes a link mechanism that is rotatably attached to the casing of the governor, allowing for precise control of fuel injection. Another significant patent is the Stopping Device for an Engine Supplied with Fuel by Fuel Injection Pump. This device features a change-over valve and an actuator that responds to engine shutdown operations, ensuring a seamless transition between fuel supply states during engine startup and shutdown.

Career Highlights

Throughout his career, Yoshiya Ishii has worked with prominent companies in the automotive industry, including Nippondenso Co., Ltd. and Toyota Motor Corporation. His experience in these organizations has allowed him to develop and refine his innovative ideas, contributing to the advancement of fuel injection technologies.

Collaborations

Ishii has collaborated with notable colleagues such as Nobuyuki Fujitani and Hidetoshi Dohshita. These partnerships have fostered a creative environment that has led to the development of groundbreaking technologies in the automotive sector.

Conclusion

Yoshiya Ishii's contributions to fuel injection technology have made a lasting impact on the automotive industry. His innovative patents and collaborative efforts continue to influence advancements in vehicle performance and efficiency.

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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