Tokyo, Japan

Masaji Ishida

This inventor holds 2 USPTO granted patents. Top assignee: Mitsubishi Jidosha Kogyo Kabushiki Kaisha. Active years: 1998.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masaji Ishida. Retrieved from https://idiyas.com/inventor/masaji-ishida-424dtnym

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


% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 17(Granted Patents)


Company Filing History:


Years Active: 1998

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2 patents (USPTO):Explore Patents

Title: Masaji Ishida: Innovator in Lean-Burn Engine Technology

Introduction

Masaji Ishida is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of control devices for lean-burn engines. With a total of 2 patents to his name, Ishida's work has had a notable impact on engine efficiency and performance.

Latest Patents

One of Ishida's latest patents is a control device and control method for lean-burn engines. This innovative control device features an electronic control unit that manages the transition from stoichiometric driving to lean driving. The control unit derives a target pressure and a basic opening degree of an idling speed control valve based on the throttle opening degree and engine rotation speed. By supplying driving pulses to a stepper motor, the control unit effectively suppresses torque changes during the switching process, enhancing the engine's performance.

Career Highlights

Masaji Ishida is currently employed at Mitsubishi Jidosha Kogyo Kabushiki Kaisha, a leading automotive manufacturer. His work at Mitsubishi has allowed him to focus on advancing engine technologies that contribute to improved fuel efficiency and reduced emissions. His expertise in lean-burn engine technology has positioned him as a key figure in the automotive innovation landscape.

Collaborations

Ishida has collaborated with notable colleagues, including Kojiro Okada and Kazuhide Togai. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and the development of cutting-edge technologies in the automotive sector.

Conclusion

Masaji Ishida's contributions to lean-burn engine technology exemplify the importance of innovation in the automotive industry. His patents and work at Mitsubishi Jidosha Kogyo Kabushiki Kaisha highlight his commitment to enhancing engine performance and efficiency. Through his efforts, Ishida continues to shape the future of 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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