Kashiwara, Japan

Kazumi Ohkawa

This inventor holds 2 USPTO granted patents. Top assignee: Teijin Limited. Active years: 1980-1990.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Kazumi Ohkawa. Retrieved from https://idiyas.com/inventor/kazumi-ohkawa

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 = 3.4

ph-index = 2

Forward Citations = 11(Granted Patents)


Location History:

  • Kunitachi, JP (1980)
  • Kashiwara, JP (1990)

Company Filing History:


Years Active: 1980-1990

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2 patents (USPTO):Explore Patents

Title: Kazumi Ohkawa: Innovator in Polyphosphazene and Photosensitive Resin Technologies

Introduction

Kazumi Ohkawa is a notable inventor based in Kashiwara, Japan. He has made significant contributions to the fields of polymer science and printing technology. With a total of 2 patents to his name, Ohkawa's work focuses on enhancing material properties and processes.

Latest Patents

Ohkawa's latest patents include a phosphazene article and a process for producing the same. This invention involves a shaped polyphosphazene article that has a modified surface portion, exhibiting desired properties and performance. The polyphosphazene polymer contains at least 50 molar % of specific repeating units, with side chains that can be aliphatic, cycloaliphatic, or aromatic. Additionally, he has developed a process for making photosensitive resin printing plates. This innovation features a support that is convenient for preparing a printing plate in situ using a liquid photosensitive resin of an unsaturated polyurethane resin.

Career Highlights

Kazumi Ohkawa is associated with Teijin Limited, a company known for its advancements in materials and technology. His work has contributed to the development of innovative products that enhance performance in various applications.

Collaborations

Ohkawa has collaborated with notable coworkers, including Toshitsugu Matsuki and Noritsugu Saiki. These partnerships have fostered a creative environment that encourages innovation and the sharing of ideas.

Conclusion

Kazumi Ohkawa's contributions to polymer science and printing technology highlight his role as a significant inventor. His patents reflect a commitment to advancing material properties and processes, making a lasting impact in his field.

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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