Miura, Japan

Kiyofumi Murayama

This inventor holds 1 USPTO granted patent. Top assignee: Nippon Polyurethane Industry Co., Ltd.. Active years: 1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kiyofumi Murayama. Retrieved from https://idiyas.com/inventor/kiyofumi-murayama

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

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 4.0

ph-index = 1

Forward Citations = 7(Granted Patents)


Company Filing History:


Years Active: 1991

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1 patent (USPTO):Explore Patents

Title: Kiyofumi Murayama: Innovator in Polyurethane Elastomers

Introduction

Kiyofumi Murayama is a notable inventor based in Miura, Japan. He has made significant contributions to the field of polyurethane elastomers, showcasing his expertise and innovative spirit. His work has led to the development of a unique polyurethane elastomer that has potential applications in various industries.

Latest Patents

Kiyofumi Murayama holds a patent for a polyurethane elastomer produced by the reaction of a polyisocyanate with an amine-type polyol and another type of polyol. The polyisocyanate used is an isocyanurate-modified hexamethylene diisocyanate. The equivalent ratio of active hydrogen to isocyanate group to be reacted ranges from 0.8 to 1.6. Additionally, the ratio of the amine-type polyol to the other type of polyol is maintained between 10/90 to 100/0 by weight. This innovative formulation enhances the properties of the elastomer, making it suitable for various applications.

Career Highlights

Kiyofumi Murayama is associated with Nippon Polyurethane Industry Co., Ltd., where he has been instrumental in advancing polyurethane technology. His dedication to research and development has positioned him as a key figure in the industry. His work not only reflects his technical skills but also his commitment to innovation.

Collaborations

Kiyofumi has collaborated with notable colleagues such as Shigeru Nakagawa and Yamagata Tomoyuki. These partnerships have fostered a collaborative environment that encourages the exchange of ideas and advancements in polyurethane technology.

Conclusion

Kiyofumi Murayama's contributions to the field of polyurethane elastomers highlight his innovative approach and dedication to research. His patent reflects a significant advancement in material science, showcasing the potential for future applications. His work continues to inspire others in the field of innovation.

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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