Osaka, Japan

Takashi Kumaki

This inventor holds 4 USPTO granted patents. Top assignees: Mitsui Takeda Chemicals, Inc., Takeda Chemical Industries, Inc.. Active years: 2001-2003.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Takashi Kumaki. Retrieved from https://idiyas.com/inventor/takashi-kumaki-bakjdoa3

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

Calculating rank

% Patents Active = 100.0

Average Co-Inventor Count = 3.0

ph-index = 2

Forward Citations = 29(Granted Patents)


Company Filing History:


Years Active: 2001-2003

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4 patents (USPTO):Explore Patents

Title: Takashi Kumaki: Innovator in Polyester Polyol and Polyurethane Technologies

Introduction

Takashi Kumaki is a prominent inventor based in Osaka, Japan. He has made significant contributions to the field of polymer chemistry, particularly in the development of polyester polyols and polyurethane foams. With a total of 4 patents to his name, Kumaki's work has advanced the efficiency and quality of production processes in this industry.

Latest Patents

Kumaki's latest patents include a method and apparatus for producing polyester polyol, as well as a method for decomposing polyurethane. The first patent provides a streamlined process for producing polyester polyol, enhancing production efficiency while ensuring stable quality. This method involves the reaction of polyethylene terephthalate and raw polyol in a reaction vessel, with by-products being distilled off and reused in the process. The second patent focuses on recovering decomposition products from polyurethane, detailing a thermal decomposition process that yields both polyol and urea compounds.

Career Highlights

Throughout his career, Takashi Kumaki has worked with notable companies such as Mitsui Takeda Chemicals, Inc. and Takeda Chemical Industries, Inc. His experience in these organizations has allowed him to refine his expertise in polymer production and innovation.

Collaborations

Kumaki has collaborated with esteemed colleagues, including Katsumi Inaoka and Katsuhisa Kodama. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Takashi Kumaki's innovative work in polyester polyol and polyurethane technologies has made a lasting impact on the industry. His patents reflect a commitment to improving production processes and product quality.

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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