Tokyo, Japan

Toshikazu Umenura

This inventor holds 1 USPTO granted patent. Top assignee: Mitsubishi Gas Chemical Company, Inc.. Active years: 1980.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Toshikazu Umenura. Retrieved from https://idiyas.com/inventor/toshikazu-umenura

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 = 8.0

ph-index = 1

Forward Citations = 6(Granted Patents)


Company Filing History:


Years Active: 1980

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1 patent (USPTO):Explore Patents

Title: Innovator Spotlight: Toshikazu Umenura

Introduction: Toshikazu Umenura is a notable inventor based in Tokyo, Japan, recognized for his significant contribution to the field of polymer chemistry. With a focus on the production of oxymethylene copolymers, Umenura's innovative methods have enhanced the efficiency of material mixing processes in his industry.

Latest Patents: Umenura holds one patent titled "Method for mixing raw materials for producing oxymethylene copolymers." This patent outlines a method for the continuous copolymerization of trioxane with a cyclic ether or a cyclic acetal as a comonomer. The advancement he proposes includes an improved approach that involves the precise mixing of a trioxane, a polymerization catalyst, and a comonomer, optimizing the production process of oxymethylene copolymers.

Career Highlights: Toshikazu Umenura works at Mitsubishi Gas Chemical Company, Inc., where he applies his expertise in polymer science to develop innovative solutions that contribute to the company's objectives. His career reflects a commitment to advancing the field through research and development.

Collaborations: Throughout his career, Umenura has collaborated with key colleagues such as Akitoshi Sugio and Akira Amamiya. These collaborations have facilitated the exchange of ideas and fostered innovation within the team, leading to significant advancements in their projects.

Conclusion: Toshikazu Umenura's contributions to the field of polymer chemistry, particularly through his patented methods for creating oxymethylene copolymers, showcase his role as a pivotal figure in the industry. His ongoing work at Mitsubishi Gas Chemical Company, Inc. reinforces the importance of innovation in producing materials that meet modern needs.

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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