This inventor holds 3 USPTO granted patents. Top assignee: Eisai Company, Limited. Active years: 1983-1988.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile
Location History:
- Gifu, JP (1983 - 1985)
- Chiba, JP (1988)
Company Filing History:
Years Active: 1983-1988
Title: Atsushi Koiwa: Innovator in Pharmaceutical Chemistry
Introduction
Atsushi Koiwa is a notable inventor based in Gifu, Japan. He has made significant contributions to the field of pharmaceutical chemistry, particularly through his innovative patents. With a total of 3 patents to his name, Koiwa continues to push the boundaries of scientific research and development.
Latest Patents
Koiwa's latest patents include a novel 4-cyanopiperidine derivative. This compound is represented by a specific general formula, wherein X denotes a halogen atom or an acid addition salt. The derivative is synthesized by reacting N-(2-hydroxyethyl)-4-carbamoylpiperidine or its acid addition salt with a dehydrating and halogenating agent. Alternatively, it can be produced by reacting 4-cyanopiperidine or its salt with another compound represented by a different general formula. Another significant patent involves a process for purifying secretin. In this process, purified secretin is obtained by subjecting crude secretin to reversed-phase high-performance liquid chromatography, utilizing a solvent mixture of an acid or its salt and an organic solvent as the eluant.
Career Highlights
Atsushi Koiwa is currently employed at Eisai Company, Limited, where he applies his expertise in pharmaceutical research. His work has been instrumental in developing new therapeutic agents that can improve patient outcomes. Koiwa's dedication to innovation in the pharmaceutical industry has earned him recognition among his peers.
Collaborations
Koiwa has collaborated with several esteemed colleagues, including Masayuki Konishi and Yoshihiko Hisatake. These collaborations have fostered a productive environment for research and development, leading to advancements in their respective fields.
Conclusion
Atsushi Koiwa is a prominent figure in pharmaceutical chemistry, known for his innovative patents and contributions to drug development. His work at Eisai Company, Limited, along with his collaborations, continues to impact the industry positively.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile