Ryoichi Katsumata

This inventor holds 37 USPTO granted patents, primarily in Amino Acid Production. Top assignees: Kyowa Hakko Kogyo Co., Ltd., Kyowa Hakko Kogyo. Active years: 1976-2002.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Ryoichi Katsumata. Retrieved from https://idiyas.com/inventor/ryoichi-katsumata

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

USPTO Granted Patents = 37

% Patents Active = 94.6

Average Co-Inventor Count = 2.8

ph-index = 11

Forward Citations = 301(Granted Patents)

Location History:

Maebashi, JA (1976)
Mashida, JP (1987)
Machida, JP (1984 - 1997)
Tokyo, JP (1989 - 1997)
Miyagi-ken, JP (2001 - 2002)
Sendai, JP (2001 - 2002)

Company Filing History:

35 out of 730

Kyowa Hakko Kogyo Co., Ltd.

Years Active: 1976-2002

Loading Chart...

Areas of Expertise:

Amino Acids

Cholesterol Reduction

Optically Active Compounds

Gene Expression

Corynebacterium

Recombinant Plasmids

Microorganisms

Fermentation

L-Tryptophan

L-Alanine

L-Valine

L-Arginine

37 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 6485931 - CHOLESTEROL DEHYDROGENASE, COPROSTAN-3-ONE DEHYDROGENASE AND 4-CHOLESTEN-3-ONE DEHYDROGENASE, COMPOSITIONS CONTAINING THE DEHYDROGENASES, AND METHOD FOR REDUCING AMOUNT OF CHOLESTEROL USING THE COMPOSITIONS (2002-11-26),

2. 6365381 - Method for producing optically active compound (2002-04-02),

3. 6312919 - Process for producing a cholesterol-reduced substance (2001-11-06),

4. 6207427 - Method for producing optically active compound (2001-03-27),

5. 5700661 - Gene expression regulatory DNA (1997-12-23),

6. 5643769 - Process for producing an optically active .gamma.-hydroxy-L-glutamic acid (1997-07-01),

7. 5624828 - Process for producing L-tryptophan in serine auxotrophic microorganisms (1997-04-29),

8. 5607848 - Process for producing optically active 4-hydroxy-2-ketoglutaric acid (1997-03-04),

9. 5605818 - Process for producing L-tryptophan, L-tyrosine or L-phenylalanine (1997-02-25),

10. 5595906 - Corynebacterium strain for producing L-tryptophan decreased in (1997-01-21),

11. 5595894 - Process for stably maintaining recombinant plasmids in serine (1997-01-21),

12. 5563052 - Process for producing L-tryptophan (1996-10-08),

13. 5559016 - Process for producing alanine (1996-09-24),

14. 5521074 - Process for producing L-valine (1996-05-28),

15. 5498532 - Process for producing amino acids (1996-03-12),

Title: The Innovative Journey of Ryoichi Katsumata

Introduction: Ryoichi Katsumata, a pioneering inventor hailing from Machida, Japan, has made significant contributions to the world of innovations with his groundbreaking ideas and inventions.

Latest Patents: Ryoichi Katsumata holds several patents in various fields, including technology, healthcare, and automotive industries, showcasing his diverse range of expertise and creativity.

Career Highlights: Throughout his illustrious career, Ryoichi Katsumata has been recognized for his innovative spirit and problem-solving abilities. His inventions have not only revolutionized existing technologies but have also paved the way for new advancements in the industry.

Collaborations: Ryoichi Katsumata has collaborated with leading research institutions, universities, and companies to further develop and implement his inventions. His collaborative efforts have resulted in the successful commercialization of several groundbreaking technologies.

Conclusion: Ryoichi Katsumata's passion for innovation and relentless pursuit of excellence have established him as a prominent figure in the world of inventors. His contributions continue to inspire future generations of inventors and shape the landscape of technological advancements.

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]