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For the Inventor, By the Inventor

Yasumachi, Japan

Katsuhiko Kawakubo

This inventor holds 11 USPTO granted patents. Top assignee: Sankyo Company, Limited. Active years: 1977-1991.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Katsuhiko Kawakubo. Retrieved from https://idiyas.com/inventor/katsuhiko-kawakubo

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

Calculating rank
USPTO Granted Patents = 11

% Patents Active = 100.0

Average Co-Inventor Count = 2.4

ph-index = 5

Forward Citations = 69(Granted Patents)


Location History:

  • Yasumachi, JA (1977)
  • Tokyo, JA (1977)
  • Yasumachi, JP (1979 - 1987)
  • Shiga, JP (1984 - 1991)

Company Filing History:

goldMedal11 out of 613 
 
Sankyo Company, Limited
 patents

Years Active: 1977-1991

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11 patents (USPTO):Explore Patents
1. 5064760 - Process for the production of an imidazoledione compound by a strain of (1991-11-12),
2. 4952234 - Imidazoledione compounds useful as herbicides (1990-08-28),
3. 4687858 - Organic acid esters of 4-benzoyl-5-hydroxy(mercapto)pyrazoles (1987-08-18),
4. 4508910 - Herbicidal 4-benzoyl-5-hydroxy-pyrazales (1985-04-02),
5. 4460597 - Herbicidal 5-aminoalkoxy-4-benzoyl-1,3-dimethyl-pyrazole derivatives (1984-07-17),
6. 4414392 - Herbicidal compositions and pyrazole derivatives (1983-11-08),
7. 4301293 - Herbicidal compositions and pyrazole derivatives (1981-11-17),
8. 4261729 - Herbicidal compositions and pyrazole derivatives (1981-04-14),
9. 4146726 - Pyrazole sulfonates (1979-03-27),
10. 4063925 - Herbicidal compositions (1977-12-20),
11. 4036631 - Pyrazolone derivatives and their use as herbicides (1977-07-19),

Title: Katsuhiko Kawakubo: Innovator in Herbicide Development

Introduction

Katsuhiko Kawakubo, an accomplished inventor based in Yasumachi, Japan, has made significant contributions to the field of agricultural chemistry. With a total of 11 patents to his name, Kawakubo's work primarily focuses on the development of innovative compounds with herbicidal and growth retardant properties.

Latest Patents

Kawakubo's latest patents include a groundbreaking process for the production of an imidazoledione compound. This compound, known as Substance No. 51262, is produced by cultivating a microorganism from the genus Streptomyces, particularly the novel strain SANK 63584 (FERM BP-958). The compound demonstrates valuable herbicidal and growth retardant characteristics, showcasing structural innovation in agricultural applications.

Career Highlights

Throughout his career, Kawakubo has been an integral part of Sankyo Company, Limited, where his research and developments have advanced the field of agriculture. His dedication to creating effective and environmentally friendly chemicals has made lasting impacts within the industry.

Collaborations

Kawakubo has collaborated with notable colleagues, including Takuo Konotsune and Tatsuo Haneishi, contributing to various projects that aim to enhance agricultural efficacy through innovative chemical solutions. Their teamwork has led to fruitful advancements in the development of new compounds.

Conclusion

Katsuhiko Kawakubo continues to exemplify the spirit of innovation and dedication in the realm of agricultural chemistry. His patents and collaborative efforts highlight the ongoing evolution of herbicidal compounds, paving the way for future discoveries that benefit both farmers and the environment.

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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