Chikugo, Japan

Hiroshi Kumagawa

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Rubber Co., Ltd.. Active years: 1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Kumagawa. Retrieved from https://idiyas.com/inventor/hiroshi-kumagawa

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 = 43(Granted Patents)


Company Filing History:


Years Active: 1990

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1 patent (USPTO):Explore Patents

Title: Biography of Hiroshi Kumagawa

Introduction

Hiroshi Kumagawa is a notable inventor based in Chikugo, Japan. He is recognized for his innovative contributions to the field of sports footwear, particularly in running shoes.

Latest Patents

Kumagawa holds a patent for a shoe designed for sports involving running. This shoe features an outer ground engaging sole, an inner foot engaging sole, and a midsole that includes a shock absorbing member. The shock absorbing member consists of a synthetic resin foam layer bonded to hard plates, enhancing comfort and performance for athletes.

Career Highlights

Kumagawa has made significant strides in the footwear industry through his work at Nippon Rubber Co., Ltd. His dedication to improving sports equipment has positioned him as a key figure in the development of advanced running shoes.

Collaborations

Throughout his career, Kumagawa has collaborated with talented individuals such as Masasuke Harada and Junji Izumi. These partnerships have fostered innovation and creativity in his projects.

Conclusion

Hiroshi Kumagawa's contributions to sports footwear exemplify his commitment to enhancing athletic performance. His innovative designs continue to influence the industry and inspire future advancements in running shoe 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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