Company Filing History:
Years Active: 1990-2002
Title: Norimitsu Umehara: Innovator in Pharmaceutical Chemistry
Introduction
Norimitsu Umehara is a notable inventor based in Tokorozawa, Japan. He has made significant contributions to the field of pharmaceutical chemistry, particularly through his innovative work on various chemical derivatives.
Latest Patents
Umehara holds 3 patents that focus on the development of novel pharmaceutical compounds. His latest patents include: 4-hydroxy-4-phenylpiperidine derivatives and pharmaceuticals containing the same, as well as substituted quinolone derivatives and pharmaceuticals containing the same. These derivatives are characterized by specific chemical structures, where R¹ represents a substituted or unsubstituted (hetero)aryl group, R² represents H or an alkoxycarbonyl, and R³ and R⁴ each independently represent H or a substituted alkyl, aryl, amino, or similar group. These compounds and their salts exhibit excellent anti-ulcer activities.
Career Highlights
Throughout his career, Umehara has worked with various companies, including Ssp Co. Ltd and Ss Pharmaceutical Co., Ltd. His work has been instrumental in advancing pharmaceutical research and development.
Collaborations
Umehara has collaborated with notable colleagues such as Kinichi Mogi and Susumu Sato, contributing to a rich exchange of ideas and innovations in the field.
Conclusion
Norimitsu Umehara's contributions to pharmaceutical chemistry through his patents and collaborations highlight his role as an influential inventor. His work continues to impact the development of effective pharmaceutical solutions.