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For the Inventor, By the Inventor

Kakogawa, Japan

Ryoji Uda

This inventor holds 5 USPTO granted patents. Top assignee: Kawasaki Jukogyo Kabushiki Kaisha. Active years: 1979-1984.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryoji Uda. Retrieved from https://idiyas.com/inventor/ryoji-uda

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

Calculating rank
USPTO Granted Patents = 5

% Patents Active = 100.0

Average Co-Inventor Count = 2.5

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:

goldMedal5 out of 3,459 
 
Kawasaki Jukogyo Kabushiki Kaisha
 patents

Years Active: 1979-1984

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5 patents (USPTO):Explore Patents
1. 4469052 - Cooling system in a liquid cooled internal combustion engine (1984-09-04),
2. 4382426 - Cooling system in a liquid cooled internal combustion engine (1983-05-10),
3. 4343377 - Crank mechanism lubricating system (1982-08-10),
4. 4165207 - Actuation device for a tachometer for an engine (1979-08-21),
5. 4142504 - Lubricating oil pump for two cycle internal combustion engines (1979-03-06),

Title: Ryoji Uda: Innovator in Engine Cooling Systems

Introduction

Ryoji Uda is a prominent inventor based in Kakogawa, Japan. He has made significant contributions to the field of internal combustion engines, particularly in cooling systems. With a total of 5 patents to his name, Uda's work has been instrumental in enhancing engine efficiency and performance.

Latest Patents

One of Uda's latest patents focuses on a cooling system in a liquid-cooled internal combustion engine. This innovation involves a by-pass canal designed for bypassing cooling liquid between a thermostat and a liquid pump in a short circuit. The by-pass canal is ingeniously formed within the cylinder and the cylinder head of the engine, or within the cylinder, cylinder head, and crankcase, without extending outside of the engine. This design aims to improve the overall cooling efficiency of the engine.

Career Highlights

Uda is currently employed at Kawasaki Jukogyo Kabushiki Kaisha, a leading company in the manufacturing of motorcycles and engines. His work at Kawasaki has allowed him to focus on innovative solutions that address common challenges in engine design and functionality. Uda's expertise in cooling systems has positioned him as a key player in the development of advanced engine technologies.

Collaborations

Throughout his career, Uda has collaborated with notable colleagues, including Hitoshi Yamamoto and Tetsuzo Fujikawa. These collaborations have fostered a creative environment that encourages the exchange of ideas and the development of cutting-edge technologies.

Conclusion

Ryoji Uda's contributions to the field of engine cooling systems exemplify his dedication to innovation and engineering excellence. His patents reflect a commitment to improving engine performance and efficiency, making him a noteworthy figure 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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