Ibaraki, Japan

Katufumi Kujira

This inventor holds 2 USPTO granted patents. Top assignee: Research Association for Utilization of Light Oil. Active years: 1990-1993.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katufumi Kujira. Retrieved from https://idiyas.com/inventor/katufumi-kujira

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 = 3.0

ph-index = 1

Forward Citations = 5(Granted Patents)


Company Filing History:


Years Active: 1990-1993

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2 patents (USPTO):Explore Patents

Title: Innovations of Katufumi Kujira

Introduction

Katufumi Kujira is a notable inventor based in Ibaraki, Japan. He has made significant contributions to the field of chemical processes, particularly in the preparation of various compounds. With a total of two patents to his name, Kujira's work showcases his expertise and innovative spirit.

Latest Patents

Kujira's latest patents include a process for preparing pyruvate and a process for preparing 2-(o-aminophenyl)ethanol. The first patent discloses a method for preparing pyruvate in high yield by reacting propylene glycol with molecular oxygen in an aqueous solution, utilizing a platinum catalyst. This process involves controlling the pH of the reaction mixture between 7 and 9, and the crude pyruvate can be purified using activated carbon in the presence of water. The second patent describes a method for preparing 2-(o-aminophenyl)ethanol by reducing 2-(o-nitrophenyl)ethanol with hydrogen in the presence of a Raney nickel catalyst. This method enhances the reaction rate through the use of a small amount of an alkali compound.

Career Highlights

Kujira is affiliated with the Research Association for Utilization of Light Oil, where he applies his knowledge and skills to advance research in the field. His work has been instrumental in developing efficient processes that contribute to the utilization of light oil.

Collaborations

Kujira collaborates with esteemed colleagues such as Makoto Imanari and Hiroshi Iwane. Their combined expertise fosters an environment of innovation and progress in their research endeavors.

Conclusion

Katufumi Kujira's contributions to the field of chemical processes through his patents reflect his dedication to innovation. His work not only advances scientific knowledge but also has practical applications in industry.

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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