Chiba, Japan

Takami Ishii

This inventor holds 2 USPTO granted patents. Top assignee: Ube Industries, Inc.. Active years: 1977-1982.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takami Ishii. Retrieved from https://idiyas.com/inventor/takami-ishii

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 = 1

Forward Citations = 2(Granted Patents)


Location History:

  • Chiba, JA (1977)
  • Ube, JP (1982)

Company Filing History:


Years Active: 1977-1982

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2 patents (USPTO):Explore Patents

Title: Takami Ishii: Innovator in Polymer Chemistry

Introduction

Takami Ishii is a notable inventor based in Chiba, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the polymerization of formaldehyde and the stabilization of oxymethylene copolymers. With a total of 2 patents, his work has implications for various industrial applications.

Latest Patents

Ishii's latest patents include a process for polymerizing formaldehyde, which addresses the undesirable deposition of polyoxymethylene during the slurry polymerization process. This innovative method minimizes deposition by utilizing polyvalent metal salts and optionally incorporating polyethylene glycol monoether. Another significant patent involves a method of stabilizing oxymethylene copolymers, which entails heating the copolymer in a specific hydrocarbonaceous mixed medium while maintaining a controlled pH and temperature.

Career Highlights

Ishii is currently associated with Ube Industries, Inc., where he continues to advance research in polymer chemistry. His expertise and innovative approaches have positioned him as a key figure in his field.

Collaborations

Throughout his career, Ishii has collaborated with esteemed colleagues, including Naohisa Takikawa and Kiyoaki Tokunaga. These partnerships have fostered a collaborative environment that enhances research and development efforts.

Conclusion

Takami Ishii's contributions to polymer chemistry through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the industry and advance the understanding of polymerization 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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