Yasuhito Yamamoto

This inventor holds 13 USPTO granted patents, plus 2 CIPO patents and 4 EPO patents. Top assignees: Ube Industries, Inc., Chugai Seiyaku Kabushiki Kaisha, Sanwa Kagaku Kenkyusho Co., Ltd.. Active years: 1999-2020.

IDiyas Innovation Intelligence. (2026). Inventor Profile: Yasuhito Yamamoto. Retrieved from https://idiyas.com/inventor/yasuhito-yamamoto

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

USPTO Granted Patents = 13

% Patents Active = 38.5

CIPO Patents = 2

EPO Patents = 4 (Patent Applications = 1)

Average Co-Inventor Count = 3.8

ph-index = 1

Forward Citations = 9(Granted Patents)

Company Filing History:

Chugai Seiyaku Kabushiki Kaisha

patents

1 out of 108

Sanwa Kagaku Kenkyusho Co., Ltd.

patents

where one patent can have more than one assignee

Years Active: 1999-2020

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13 patents (USPTO):Sort by Forward CitationsExplore Patents

1. 10774072 - Crystal of N-substituted sulfonamide compound (2020-09-15),

2. 10519112 - Method for producing heteroaromatic sulfonamide compound (2019-12-31),

3. 10428046 - N-substituted sulfonamide compound and method for producing same (2019-10-01),

4. 10392345 - Crystal of salt of novel 3-azabicyclo[3.1.0]hexane derivative and pharmaceutical use thereof (2019-08-27),

5. 8901254 - Process for preparing polycarbonate diol diacrylate and high-purity polycarbonate diol diacrylate (2014-12-02),

6. 8143052 - Process for preparing optically active (S or R)-α amino acid and (R or S)-α amino acid ester in one phase organic reaction medium (2012-03-27),

7. 7915019 - Processes for preparing optically active (S or R)-β-amino acid and optically active (R or S)-β-amino acid ester, and β-amino acid 2-alkoxyethyl ester and optically active (S or R)-β amino acid 2-alkoxyethyl ester (2011-03-29),

8. 7449325 - Process for enzymatically producing either optically active N-substituted β-amino acids or esters thereof or optically active N-substituted 2-homopipecolic acids or esters thereof (2008-11-11),

9. 6906039 - Process for preparation of erythromycin compounds (2005-06-14),

10. 6723860 - 7a-alkoxy-4H-pyrano[3,2-d]-oxazol-2(3H)-one and process for producing the same (2004-04-20),

11. 6307091 - Trifluoro-substituted benzoic acid, esters thereof and processes for preparing the same (2001-10-23),

12. 6160171 - Trifluoro-substituted benzoic acid, esters thereof, and process for (2000-12-12),

13. 5874581 - 2-silyloxy-tetrahydrothienopyridine, salt thereof and process for (1999-02-23),

Title: Yasuhito Yamamoto: Innovator in Sulfonamide Compounds

Introduction

Yasuhito Yamamoto is a prominent inventor based in Ube, Japan. He has made significant contributions to the field of chemistry, particularly in the development of sulfonamide compounds. With a total of 13 patents to his name, his work has had a notable impact on various applications in the industry.

Latest Patents

Yamamoto's latest patents include innovative methods for producing N-substituted sulfonamide compounds. One of his inventions relates to a method for producing these compounds by reacting a sulfonamide compound with a halogenated organic compound in the presence of cesium carbonate or potassium carbonate. Another significant patent involves a method for producing a mixed sulfonic acid anhydride, which is achieved by reacting a sulfonic acid compound with a perfluoroalkyl sulfonic acid anhydride or halide. This method also leads to the production of a sulfonamide compound through a reaction with an amine compound.

Career Highlights

Throughout his career, Yasuhito Yamamoto has worked with notable companies such as Ube Industries, Inc. and Sanwa Kagaku Kenkyusho Co., Ltd. His experience in these organizations has allowed him to refine his expertise in chemical processes and patent development.

Collaborations

Yamamoto has collaborated with esteemed colleagues, including Hiroyuki Miyata and Kikuo Ataka. These partnerships have contributed to the advancement of his research and the successful development of his patented technologies.

Conclusion

Yasuhito Yamamoto's innovative work in the field of sulfonamide compounds showcases his dedication to advancing chemical processes. His contributions through patents and collaborations highlight his role as a significant figure in the industry.

Profile summary based on public USPTO records.