Kamakura, Japan

Kohei Isayama

This inventor holds 2 USPTO granted patents. Top assignee: Dai Nippon Toryo Co., Ltd.. Active years: 1976-1978.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kohei Isayama. Retrieved from https://idiyas.com/inventor/kohei-isayama

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 = 4.0

ph-index = 2

Forward Citations = 18(Granted Patents)


Location History:

  • Kamakura, JA (1976)
  • Kamakura, JP (1978)

Company Filing History:


Years Active: 1976-1978

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2 patents (USPTO):Explore Patents

Title: The Innovations of Kohei Isayama: Pioneering Aqueous Epoxy Resin Paint Compositions

Introduction: Kohei Isayama is an accomplished inventor based in Kamakura, Japan. He has made significant contributions to the field of chemical engineering, specifically in the development of aqueous epoxy resin paint compositions. With a total of two patents to his name, Isayama continues to demonstrate a commitment to innovation in his professional endeavors.

Latest Patents: Isayama's latest patents focus on the formulation of aqueous epoxy resin paint compositions. These patents describe an epoxy resin emulsion that is created by emulsifying a bisphenol type epoxy resin or a blend of such resins. The compositions include compatibility-enhancing components, such as polyoxyethylene benzylated phenyl ether, which boasts an HLB value of at least 15. The formulations may also incorporate curing agents, pigments, and other additives to achieve desired properties.

Career Highlights: Isayama is currently employed at Dai Nippon Toryo Co., Ltd., where he applies his expertise in material sciences to advance the company's product offerings. His research includes the development of environmentally friendly paint solutions that align with modern regulatory standards.

Collaborations: Throughout his career, Isayama has collaborated with notable colleagues, including Minoru Hosoda and Eiichi Kasiwagi. These partnerships have contributed to a rich exchange of ideas and expertise, further enhancing the quality and impact of their innovative projects.

Conclusion: Kohei Isayama's work in aqueous epoxy resin paint compositions exemplifies the intersection of creativity and science. His inventions not only showcase his technical knowledge but also his dedication to developing products that are both efficient and sustainable. As he continues to push the boundaries of innovation, Isayama remains a significant figure in the field of materials engineering.

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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