Kobe, Japan

Katsumi Umezawa

This inventor holds 1 USPTO granted patent. Top assignee: Kawasaki Jukogyo Kabushiki Kaisha. Active years: 1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsumi Umezawa. Retrieved from https://idiyas.com/inventor/katsumi-umezawa

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 45(Granted Patents)


Company Filing History:


Years Active: 1982

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1 patent (USPTO):Explore Patents

Title: Innovations by Katsumi Umezawa

Introduction

Katsumi Umezawa is a notable inventor based in Kobe, Japan. He has made significant contributions to the field of motorcycle engineering, particularly in fuel system technology. His innovative approach has led to the development of a unique patent that addresses fuel vapor management in motorcycle engines.

Latest Patents

Umezawa holds a patent for a "Fuel vapor arresting means for motorcycle engine fuel system." This invention features a fuel tank designed with a fueling port that is sealed by a filler cap. The filler cap consists of outer and inner cap discs that engage with respective cap seats, creating a buffer chamber between them. A vent hole connects the tank's interior to this buffer chamber, which is linked to a canister filled with activated carbon particles. This design effectively captures liquid fuel when the motorcycle is tilted, preventing it from reaching the canister.

Career Highlights

Katsumi Umezawa is associated with Kawasaki Heavy Industries, a prominent company in the motorcycle manufacturing sector. His work has contributed to advancements in motorcycle fuel systems, enhancing both performance and environmental sustainability. Umezawa's innovative designs reflect his commitment to improving motorcycle technology.

Collaborations

Umezawa has collaborated with talented colleagues such as Mikio Kamitake and Hisashi Fujii. Their combined expertise has fostered a creative environment that encourages the development of cutting-edge technologies in the motorcycle industry.

Conclusion

Katsumi Umezawa's contributions to motorcycle engineering, particularly through his patent on fuel vapor management, highlight his innovative spirit and dedication to enhancing motorcycle performance. His work continues to influence the industry and pave the way for future advancements.

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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