Kyoto, Japan

Takuji Isaka

This inventor holds 2 USPTO granted patents. Top assignees: Sanyo Chemical Ind., Ltd., Sanyo Chemical Industries, Ltd., Toyota Jidosha Kabushiki Kaisha. Active years: 1981-1992.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takuji Isaka. Retrieved from https://idiyas.com/inventor/takuji-isaka

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 = 4.8

ph-index = 2

Forward Citations = 42(Granted Patents)


Company Filing History:


Years Active: 1981-1992

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2 patents (USPTO):Explore Patents

Title: Takuji Isaka: Innovator in Polyurethane Production

Introduction

Takuji Isaka is a notable inventor based in Kyoto, Japan. He has made significant contributions to the field of polyurethane production, holding a total of 2 patents. His work focuses on processes that enhance the physical properties of polyurethane moldings.

Latest Patents

One of Isaka's latest patents is a process for producing polyurethane. This innovative process involves reacting a polyoxyethylene chain-containing polyether polyol with diaminotoluene and a low-molecular weight polyol. The resulting polyurethane moldings exhibit excellent physical properties and receptivity to electrostatic coating. This process is particularly advantageous for injection reaction molding applications.

Another significant patent is for a polyisocyanurate resin and the process for making it. This invention allows for the creation of high-density polyisocyanurate resins that possess improved rigidity, heat resistance, and impact resistance. The process involves reacting a polyisocyanate with a polymer polyol derived from a high molecular weight polyol, optionally using a crosslinker and a trimerization catalyst.

Career Highlights

Throughout his career, Takuji Isaka has worked with prominent companies such as Toyota Motor Corporation and Sanyo Chemical Industry Co., Ltd. His experience in these organizations has contributed to his expertise in the field of polymer chemistry and materials science.

Collaborations

Isaka has collaborated with notable colleagues, including Takao Nomura and Isao Ishikawa. These partnerships have likely fostered innovation and the exchange of ideas in their respective fields.

Conclusion

Takuji Isaka's contributions to polyurethane production and polyisocyanurate resins highlight his role as an influential inventor. His patents reflect a commitment to advancing material science and improving industrial processes.

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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