Yokohama, Japan

Hiroshi Sakurai

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Zeon Company, Ltd.. Active years: 1981.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Hiroshi Sakurai. Retrieved from https://idiyas.com/inventor/hiroshi-sakurai-1jq7b4ge

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 = 3.0

ph-index = 1

Forward Citations = 3(Granted Patents)


Company Filing History:


Years Active: 1981

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1 patent (USPTO):Explore Patents

Title: Hiroshi Sakurai: Innovator in Rubber Polymer Technology

Introduction

Hiroshi Sakurai is a notable inventor based in Yokohama, Japan. He has made significant contributions to the field of rubber polymer technology. His innovative work has led to the development of important chemical compounds that enhance the durability and performance of rubber materials.

Latest Patents

Hiroshi Sakurai holds a patent for "Diphenylamine derivatives and degradation inhibitors for rubber polymers." This patent describes a diphenylamine derivative characterized by a specific general formula. The invention includes a degradation inhibitor for rubbery polymers that utilizes the diphenylamine derivative as an active ingredient. This innovation is crucial for improving the longevity and stability of rubber products.

Career Highlights

Sakurai is associated with Nippon Zeon Company, Ltd., where he has been instrumental in advancing research and development in rubber technology. His work has not only contributed to the company's portfolio but has also had a broader impact on the industry.

Collaborations

Throughout his career, Hiroshi Sakurai has collaborated with esteemed colleagues such as Mitsuhiro Tamura and Tetsuo Ohishi. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Hiroshi Sakurai's contributions to rubber polymer technology through his patent and collaborations highlight his role as a key innovator in the field. His work continues to influence the development of more durable and effective rubber materials.

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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