Yamaguchi, Japan

Tatsuya Arai

This inventor holds 2 USPTO granted patents and 2 published patent applications and 4 EPO patents. Top assignee: Ube Industries, Inc.. Active years: 2014-2015.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tatsuya Arai. Retrieved from https://idiyas.com/inventor/tatsuya-arai-u10k8but

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

Calculating rank
USPTO Granted Patents = 2 

% Patents Active = 50.0


Average Co-Inventor Count = 4.0

ph-index = 1


Company Filing History:


Years Active: 2014-2015

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2 patents (USPTO):Explore Patents

Title: Tatsuya Arai: Innovator in Polymer Electrolyte Technology

Introduction

Tatsuya Arai is a notable inventor based in Yamaguchi, Japan. He has made significant contributions to the field of polymer electrolyte technology, holding 2 patents that showcase his innovative approach to materials science.

Latest Patents

One of his latest patents is focused on a polymer electrolyte composition. This composition consists of a sulfonated block copolymer that features a hydrophilic segment with a sulfonic acid group and a hydrophobic segment devoid of a sulfonic acid group. Each segment contains an aromatic ring as its main chain. Additionally, the composition includes an aromatic polymer that lacks a sulfonic acid group, which has a structural unit identical to that of the hydrophobic segment of the sulfonated block copolymer. The ion-exchange capacity of this composition ranges from 0.5 mmol/g to 2.9 mmol/g. This innovation also encompasses electrolyte membranes, membrane/electrolyte assemblies, and electrolyte fuel cells that utilize the polymer electrolyte composition.

Another significant patent by Arai details a method for producing a sulfonated polyarylether block copolymer. This method involves creating a sulfonated polyarylether block copolymer that contains both a hydrophobic segment and a hydrophilic segment with sulfonic acid groups or their derivatives. The process includes block copolymerizing a hydrophilic segment prepolymer, which has a sulfonic acid group in a potassium salt form, with a hydrophobic segment prepolymer. This innovation also provides a proton conductor that incorporates the sulfonated polyarylether block copolymer.

Career Highlights

Tatsuya Arai is currently associated with Ube Industries, Inc., where he continues to advance his research and development efforts in polymer technology. His work has positioned him as a key figure in the field, contributing to advancements that have practical applications in various industries.

Collaborations

Arai has collaborated with notable colleagues, including Tetsuji Hirano and Nobuharu Hisano. These partnerships have fostered a collaborative environment that enhances innovation and research outcomes.

Conclusion

Tatsuya Arai's contributions to polymer electrolyte technology reflect his dedication to innovation and research. His patents not only advance scientific understanding but also

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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