Yokohama, Japan

Katsushi Yoshikawa

This inventor holds 4 USPTO granted patents. Top assignee: Nissan Motor Company Limited. Active years: 1980-1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsushi Yoshikawa. Retrieved from https://idiyas.com/inventor/katsushi-yoshikawa

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 = 3.7

ph-index = 3

Forward Citations = 27(Granted Patents)


Company Filing History:


Years Active: 1980-1981

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4 patents (USPTO):Explore Patents

Title: Innovations of Katsushi Yoshikawa

Introduction

Katsushi Yoshikawa is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of automotive engineering, particularly in carburetor design. With a total of 4 patents to his name, his work has had a lasting impact on engine performance and efficiency.

Latest Patents

Yoshikawa's latest patents include a carburetor with an automatic choking and acceleration device. This innovative carburetor is of the variable venturi type and features a bypass passage that is controlled during engine starting and warming up. The design incorporates a piston that adjusts flow resistance based on vacuum suction downstream of the throttle valve. As the engine warms up, a heat-sensitive element controls the maximum open position of the piston, ensuring optimal performance. Additionally, he developed a variable air valve carburetor, which utilizes a circular air valve connected to a fuel metering needle, enhancing fuel delivery and engine efficiency.

Career Highlights

Yoshikawa is currently employed at Nissan Motor Company Limited, where he continues to innovate in automotive technology. His work has contributed to advancements in engine design and fuel efficiency, making him a valuable asset to the company.

Collaborations

Throughout his career, Yoshikawa has collaborated with notable colleagues such as Masaaki Saito and Tadaki Ota. These partnerships have fostered a creative environment that has led to the development of groundbreaking automotive technologies.

Conclusion

Katsushi Yoshikawa's contributions to carburetor design and automotive engineering exemplify his innovative spirit and dedication to improving engine performance. His patents reflect a commitment to advancing technology in the automotive industry.

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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