Okayama, Japan

Hifumi Yasumatsu

This inventor holds 1 USPTO granted patent and 1 published patent application. Top assignee: Marugo Rubber Industries, Ltd.. Active years: 1996.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hifumi Yasumatsu. Retrieved from https://idiyas.com/inventor/hifumi-yasumatsu

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

USPTO Granted Patents = 1 

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 13(Granted Patents)


Company Filing History:


Years Active: 1996

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1 patent (USPTO):Explore Patents

Title: Hifumi Yasumatsu: Innovator in Automotive Fuel Piping Technology

Introduction

Hifumi Yasumatsu is a notable inventor based in Okayama, Japan. He has made significant contributions to the field of automotive technology, particularly in the development of specialized hoses for fuel piping.

Latest Patents

Yasumatsu holds a patent for a hose designed specifically for automotive fuel piping. This innovative hose features an inner layer made from a molding of a terpolymeric fluoro-resin, which is created from tetrafluoroethylene, hexafluoropropylene, and vinylidene fluoride. This unique composition allows the hose to maintain suitable flexibility while ensuring durability. The outer layer utilizes a vulcanization composition of either epichlorohydrin rubber or an NBR/PVC blend, while the inner layer employs a vulcanization composition of NBR rubber or fluororubber. Notably, the bonding strength achieved through vulcanization bonding does not require any surface treatments, such as corona discharge, on the inner layer's fluororesin.

Career Highlights

Yasumatsu is associated with Marugo Rubber Industries, Ltd., where he has been instrumental in advancing automotive fuel piping technology. His work has led to the creation of products that enhance the safety and efficiency of fuel systems in vehicles.

Collaborations

Throughout his career, Yasumatsu has collaborated with talented individuals such as Yasumichi Ogawa and Kazutaka Shiraga. These partnerships have contributed to the innovative developments in the automotive sector.

Conclusion

Hifumi Yasumatsu's contributions to automotive fuel piping technology exemplify the impact of innovation in engineering. His patented designs continue to influence the industry, showcasing the importance of research and development in creating safer and more efficient automotive components.

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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