Kobe, Japan

Masahiko Kisumi

This inventor holds 4 USPTO granted patents. Top assignee: Tanabe Seiyaku Company, Limited. Active years: 1984-1987.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Masahiko Kisumi. Retrieved from https://idiyas.com/inventor/masahiko-kisumi

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 = 2

Forward Citations = 22(Granted Patents)


Company Filing History:


Years Active: 1984-1987

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4 patents (USPTO):Explore Patents

Title: Masahiko Kisumi: Innovator in L-Aspartic Acid Production

Introduction

Masahiko Kisumi is a prominent inventor based in Kobe, Japan. He has made significant contributions to the field of biotechnology, particularly in the production of L-aspartic acid. With a total of 4 patents to his name, Kisumi's work has paved the way for more efficient industrial processes.

Latest Patents

Kisumi's latest patents focus on innovative methods for producing L-aspartic acid. One of his notable inventions involves a novel microorganism of the genus Escherichia. This microorganism contains a hybrid plasmid that integrates a plasmid with deoxyribonucleic acid carrying the gene for aspartase. The method disclosed includes contacting a culture of this microorganism with fumaric acid and ammonia to produce L-aspartic acid, which is then collected. Another patent features a similar approach using a microorganism of the genus Serratia, highlighting the versatility of his methods in producing L-aspartic acid.

Career Highlights

Masahiko Kisumi is associated with Tanabe Seiyaku Company, Limited, where he has been instrumental in advancing biotechnological research. His work has not only contributed to the scientific community but has also had practical applications in various industries.

Collaborations

Kisumi has collaborated with notable colleagues such as Ichiro Chibata and Saburo Komatsubara. Their combined expertise has further enhanced the research and development efforts in the field of biotechnology.

Conclusion

Masahiko Kisumi's innovative approaches to L-aspartic acid production demonstrate his significant impact on biotechnology. His patents reflect a commitment to advancing industrial processes and improving efficiency in production methods.

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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