Toda, Japan

Tatsuya Kouyama

This inventor holds 5 USPTO granted patents and 4 published patent applications and 2 EPO patents. Top assignees: Dic Corporation, Dainippon Ink and Chemicals, Incorporated. Active years: 2009-2025.

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

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

USPTO Granted Patents = 5 

% Patents Active = 60.0

 

Average Co-Inventor Count = 3.5

ph-index = 1

Forward Citations = 1(Granted Patents)


Location History:

  • Toda, JP (2009 - 2012)
  • Tokyo, JP (2021)

Company Filing History:


Years Active: 2009-2025

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5 patents (USPTO):Explore Patents

Title: Tatsuya Kouyama: Innovator in Fuel Cell Technology

Introduction

Tatsuya Kouyama is a notable inventor based in Toda, Japan. He has made significant contributions to the field of fuel cell technology and packaging materials. With a total of 5 patents to his name, Kouyama's work focuses on enhancing the performance and durability of various materials used in these applications.

Latest Patents

Kouyama's latest patents include innovations in laminates and adhesives for packaging materials. One of his key inventions is a laminate designed for gaskets in fuel cells. This laminate features a heat seal layer that offers excellent moisture and heat resistance, making it suitable for fuel cell applications. The heat seal layer is a reaction product of a heat sealant that includes an amorphous polyester polyol, an epoxy resin, and an isocyanate compound. Additionally, he has developed an adhesive for packaging materials that maintains adhesion strength and formability even under high temperature and humidity conditions.

Career Highlights

Throughout his career, Tatsuya Kouyama has worked with prominent companies such as Dic Corporation and Dainippon Ink and Chemicals, Incorporated. His experience in these organizations has allowed him to refine his expertise in material science and engineering.

Collaborations

Kouyama has collaborated with notable colleagues, including Masanobu Fukuda and Kenkichi Yano. These partnerships have contributed to the advancement of his research and innovations.

Conclusion

Tatsuya Kouyama is a distinguished inventor whose work in fuel cell technology and packaging materials has made a significant impact. His innovative patents reflect his commitment to improving material performance and durability.

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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