Location History:
- Kanagawa, JP (1989)
- Shizuoka, JP (1991)
Company Filing History:
Years Active: 1989-1991
Title: Innovations by Yasuyuki Katoh
Introduction
Yasuyuki Katoh is a notable inventor based in Shizuoka, Japan. He has made significant contributions to the field of medicinal chemistry, particularly in the development of novel compounds with enhanced antibacterial and antiarrhythmic properties. With a total of 2 patents, his work continues to impact the pharmaceutical industry.
Latest Patents
One of Yasuyuki Katoh's latest patents involves novel quinolonecarboxylic acid derivatives. These compounds are represented by a specific general formula, where R₁ can be a hydrogen atom or amino, R₂ can be a fluorine atom or methoxy, and R₃ can be a hydrogen atom or a lower alkyl group. The compounds exhibit higher antibacterial activity with fewer side effects compared to known quinolone antibiotics such as ofloxacin and norfloxacin. Additionally, they have reduced phototoxicity, which is often associated with 6,8-defluoroquinoline antibiotics.
Another significant patent by Katoh is related to novel diamine derivatives. This compound, or a salt thereof, is characterized by a general formula where R₁ and R₂ are alkyl groups, and R₃ is either a hydrogen atom or an alkyl group. The compound is particularly useful in treating arrhythmias, demonstrating strong effects while minimizing undesirable side effects.
Career Highlights
Yasuyuki Katoh is currently associated with Chugai Seiyaku Kabushiki Kaisha, a prominent pharmaceutical company in Japan. His work at Chugai has allowed him to focus on innovative drug development, contributing to advancements in medical treatments.
Collaborations
Throughout his career, Yasuyuki Katoh has collaborated with notable colleagues, including Hiroyuki Nagano and Takeshi Yokota. These collaborations have fostered a productive environment for research and innovation in the pharmaceutical sector.
Conclusion
Yasuyuki Katoh's contributions to medicinal chemistry through his patents reflect his commitment to improving healthcare. His innovative compounds are paving the way for more effective treatments with fewer side effects.