Toyota, Japan

Katsuhiko Tsuruta

This inventor holds 1 USPTO granted patent. Top assignee: Toyota Jidosha Kogyo Kabushiki Kaisha. Active years: 1979.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuhiko Tsuruta. Retrieved from https://idiyas.com/inventor/katsuhiko-tsuruta

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 = 1

Forward Citations = 2(Granted Patents)


Company Filing History:


Years Active: 1979

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1 patent (USPTO):Explore Patents

Title: Katsuhiko Tsuruta: Innovator in Rotary Piston Engine Technology

Introduction

Katsuhiko Tsuruta is a notable inventor based in Toyota, Japan. He has made significant contributions to the field of rotary piston engines, particularly with his innovative designs that enhance engine performance and efficiency. His work is recognized for its technical ingenuity and practical applications in the automotive industry.

Latest Patents

Tsuruta holds a patent for a sheath glow plug specifically designed for rotary piston engines. This glow plug is uniquely adapted to be mounted in an engine plug hole without projecting from it. It is engineered to be traversed by a flow of fuel-air mixture temporarily trapped in the plug hole. The design includes an elongated protective tube that provides a straight root portion, supporting it from a plug housing that fits into the plug hole. The tube features a closed-end hook-shaped free tip portion, which is spaced from the root portion and lies in the same plane. A helical heater coil is situated within the protective tube, with a smaller pitch at the free tip portion than at the root portion, allowing for greater heat generation at the tip.

Career Highlights

Tsuruta's career is marked by his association with Toyota Jidosha Kogyo Kabushiki Kaisha, where he has been instrumental in developing advanced automotive technologies. His innovative approach has led to improvements in engine design and functionality, contributing to the company's reputation for excellence in engineering.

Collaborations

Throughout his career, Tsuruta has collaborated with esteemed colleagues such as Nobutaka Morimitsu and Tomio Kumoi. These partnerships have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Katsuhiko Tsuruta's contributions to rotary piston engine technology exemplify the spirit of innovation in the automotive industry. His patent for the sheath glow plug showcases his ability to solve complex engineering challenges. Tsuruta's work continues to influence the field, paving the way for future advancements in engine 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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