Tokushima, Japan

Nobuhisa Tsutsumi

This inventor holds 2 USPTO granted patents. Top assignees: Nisshinbo Industries, Inc., Otsuka Pharmaceutical Company, Limited, Otsuka Pharmaceutical Factory, Inc.. Active years: 1998-2001.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Nobuhisa Tsutsumi. Retrieved from https://idiyas.com/inventor/nobuhisa-tsutsumi

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 = 3.7

ph-index = 2

Forward Citations = 35(Granted Patents)


Company Filing History:


Years Active: 1998-2001

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2 patents (USPTO):Explore Patents

Title: Nobuhisa Tsutsumi: Innovator in Polyurethane Technology

Introduction

Nobuhisa Tsutsumi is a notable inventor based in Tokushima, Japan. He has made significant contributions to the field of polyurethane technology, holding 2 patents that showcase his innovative approach to material science.

Latest Patents

His latest patents include a production process for producing polyurethane elastic material and elastic yarn. This process involves using a combination of polymer diols and diisocyanates to create a polyurethane polymer in a fluid state. The method emphasizes continuous extrusion from a nozzle, ensuring efficiency in production. Another patent focuses on an antithrombotic resin, which is prepared by blending antithrombotics in polyurethane or polyurethane urea. This invention aims to enhance medical applications by utilizing specific polyether diols.

Career Highlights

Throughout his career, Nobuhisa Tsutsumi has worked with prominent companies such as Nisshinbo Industries, Inc. and Otsuka Pharmaceutical Factory, Inc. His experience in these organizations has allowed him to refine his expertise in polymer technology and contribute to various innovative projects.

Collaborations

He has collaborated with notable colleagues, including Kenji Tamura and Mitsuhiko Yoshimoto, further enriching his work and expanding the impact of his inventions.

Conclusion

Nobuhisa Tsutsumi's contributions to polyurethane technology reflect his dedication to innovation and improvement in material science. His patents not only advance the field but also hold potential for significant applications in various industries.

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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