Tokyo, Japan

Kazuo Ishihara

This inventor holds 5 USPTO granted patents and 6 published patent applications. Top assignees: Nippon Steel Chemical & Material Co., Ltd., Kukdo Chemical Co., Ltd.. Active years: 2023-2025.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazuo Ishihara. Retrieved from https://idiyas.com/inventor/kazuo-ishihara-4xx551ot

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

Calculating rank
USPTO Granted Patents = 5 

% Patents Active = 100.0

Average Co-Inventor Count = 3.4

ph-index = 1


Company Filing History:


Years Active: 2023-2025

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5 patents (USPTO):Explore Patents

Title: Kazuo Ishihara: Innovator in Epoxy Resin Technology

Introduction

Kazuo Ishihara is a prominent inventor based in Tokyo, Japan. He has made significant contributions to the field of epoxy resin technology, holding a total of five patents. His work focuses on developing materials that exhibit excellent properties for various applications, particularly in printed-wiring boards.

Latest Patents

Ishihara's latest patents include innovations such as an active ester resin and a method for producing epoxy resin compositions. These compositions are designed to provide excellent low-dielectric properties, copper foil peel strength, and interlayer cohesion strength. His active ester resin features a polyaryloxy unit containing a dicyclopentenyl group, which enhances the performance of the epoxy resin composition. Additionally, he has developed a polyfunctional vinyl resin that demonstrates high thermal conductivity and heat resistance while maintaining a low dielectric constant.

Career Highlights

Throughout his career, Kazuo Ishihara has worked with notable companies, including Nippon Steel Chemical & Material Co., Ltd. and Kukdo Chemical Co., Ltd. His expertise in resin technology has positioned him as a key figure in the development of advanced materials for various industrial applications.

Collaborations

Ishihara has collaborated with several professionals in his field, including Masahiro Soh and Jin Soo Lee. These partnerships have contributed to the advancement of his research and the successful development of innovative resin materials.

Conclusion

Kazuo Ishihara's contributions to epoxy resin technology have made a significant impact on the industry. His innovative patents and collaborations highlight his dedication to advancing material science. His work continues to influence the development of high-performance materials in various applications.

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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