This inventor holds 2 USPTO granted patents. Top assignee: Mitsubishi Rayon Company, Limited. Active years: 1986-1995.
Company Filing History:
Years Active: 1986-1995
Title: Innovations of Yuri Kagawa
Introduction
Yuri Kagawa is a notable inventor based in Hiroshima, Japan. He has made significant contributions to the field of chemistry, particularly in the development of optically active compounds. With a total of 2 patents, Kagawa's work has implications in the pharmaceutical industry.
Latest Patents
Kagawa's latest patents include a process for producing optically active carboxylic acid amide, specifically N-(3-acetylthio-2-D-methylpropionyl)-L-proline. This compound is useful as a precursor for captopril, an antihypertensive agent. The process involves allowing thioacetic acid to react with methyl methacrylate to prepare racetalc methyl 3-acetylthio-2-DL-methylpropionate. This propionate is then contacted with cells of Pseudomonas to effect biological and asymmetric hydrolysis, leading to the extraction of 3-acetylthio-D-2-methylpropionic acid, which is subsequently reacted with L-proline. Another patent focuses on the preparation of optically active carboxylic acids and antipodes, where organic carboxylic acid esters are synthesized in racemic form and treated with an enzyme source to produce optically active carboxylic acid esters.
Career Highlights
Kagawa is currently employed at Mitsubishi Rayon Company, Limited, where he continues to innovate in the field of chemistry. His work has been instrumental in advancing the understanding and application of optically active compounds.
Collaborations
Kagawa has collaborated with notable coworkers, including Hisao Onishi and Akihiro Sakimae, who have contributed to his research endeavors.
Conclusion
Yuri Kagawa's contributions to the field of chemistry, particularly through his patents, highlight his innovative spirit and dedication to advancing pharmaceutical applications. His work continues to influence the development of important compounds in the industry.