Kanagawa, Japan

Tadamitsu Kiyoura

This inventor holds 14 USPTO granted patents. Top assignee: Mitsui Toatsu Chemicals, Incorporated. Active years: 1980-1997.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Tadamitsu Kiyoura. Retrieved from https://idiyas.com/inventor/tadamitsu-kiyoura

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 = 2.1

ph-index = 5

Forward Citations = 68(Granted Patents)


Location History:

  • Kamakura, JP (1980 - 1986)
  • Kanagawa, JP (1984 - 1995)
  • Kawasaki, JP (1989 - 1997)

Company Filing History:


Years Active: 1980-1997

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14 patents (USPTO):Explore Patents

Title: Tadamitsu Kiyoura: Innovator in Methylamine Production

Introduction

Tadamitsu Kiyoura is a notable inventor based in Kanagawa, Japan. He has made significant contributions to the field of chemical engineering, particularly in the production of methylamines. With a total of 14 patents to his name, Kiyoura's work has had a substantial impact on the industry.

Latest Patents

Kiyoura's latest patents include a "Disproportionating method of trimethylamine." This innovative method involves subjecting trimethylamine with ammonia and optionally, a methylamine to a disproportionating reaction. The use of a zeolite as a catalyst, specifically mordenite or clinoptilolite, allows for efficient reactions at low temperatures while minimizing by-products such as acetonitrile. Another significant patent is the "Method for preparing methylamines," which focuses on selectively producing dimethylamine and monomethylamine while inhibiting the production of trimethylamine. This method utilizes a mordenite modified with a silylating agent, reducing the need for recycling trimethylamine and decreasing the amount of steam required.

Career Highlights

Kiyoura is currently employed at Mitsui Toatsu Chemicals, Incorporated, where he continues to innovate in the field of chemical production. His work has been instrumental in advancing methods that enhance efficiency and reduce waste in methylamine synthesis.

Collaborations

Throughout his career, Kiyoura has collaborated with esteemed colleagues such as Yasuo Kogure and Kazuo Kanaya. These partnerships have fostered a collaborative environment that encourages innovation and the sharing of ideas.

Conclusion

Tadamitsu Kiyoura's contributions to the field of chemical engineering, particularly in methylamine production, highlight his role as a leading inventor. His innovative methods and collaborative spirit continue to influence the industry positively.

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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