Iwakuni, Japan

Osamu Kai

This inventor holds 2 USPTO granted patents. Top assignee: Teijin Limited. Active years: 1980-1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Osamu Kai. Retrieved from https://idiyas.com/inventor/osamu-kai-w6tohvbw

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 = 4.4

ph-index = 2

Forward Citations = 15(Granted Patents)


Company Filing History:


Years Active: 1980-1982

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2 patents (USPTO):Explore Patents

Title: Osamu Kai: Innovator in Aromatic Polyamide Fibers

Introduction

Osamu Kai is a notable inventor based in Iwakuni, Japan. He has made significant contributions to the field of fiber technology, particularly in the development of aromatic polyamide fibers. With a total of 2 patents to his name, his work has had a considerable impact on the industry.

Latest Patents

Kai's latest patents include innovative advancements in aromatic polyamide fibers. The first patent is for a core-in-sheath type aromatic polyamide fiber and the process for producing it. This fiber features a core portion that is insoluble and a sheath portion that is soluble in N-methyl-2-pyrrolidone at 35 degrees Celsius, providing excellent dyeing properties. The second patent focuses on flame-resistant wholly aromatic polyamide fibers. This fiber comprises a wholly aromatic polyamide and an organic phosphorus compound containing one or more halogen atoms. The resulting fiber exhibits excellent flame resistance, good color, and superior fiber properties.

Career Highlights

Osamu Kai is associated with Teijin Limited, a company renowned for its innovations in advanced materials. His work at Teijin has allowed him to explore and develop cutting-edge technologies in fiber production.

Collaborations

Throughout his career, Kai has collaborated with esteemed colleagues such as Tsutomu Nakamura and Yasuo Nakagawa. These partnerships have contributed to the advancement of fiber technology and the successful development of his patented innovations.

Conclusion

Osamu Kai's contributions to the field of aromatic polyamide fibers demonstrate his commitment to innovation and excellence. His patents reflect a deep understanding of material properties and their applications in various industries.

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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