Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4965263 | 6-acylaminophenyl-5-alkyl-4,5-dihydro-3(2H)-pyridazinone compounds useful as blood pressure depressants, antithrombotic agents and in the treatment of heart disease | Joji Kamiya, Yasuhito Tanaka, Tsutomu Katakami, Nobuyuki Fukazawa, Hajime Iizuka +1 more | 1990-10-23 |
| 4734418 | Quinazoline compounds and antihypertensives | Keiichi Yokoyama, Koji Kato, Takumi Kitahara, Hiroyasu Ohno, Mikio Kumakura +4 more | 1988-03-29 |
| 4639451 | Pyridazinone derivatives | Tsutomu Katakami, Nobuyuki Fukazawa, Hajime Iizuka, Joji Kamiya, Yasuhito Tanaka +1 more | 1987-01-27 |
| 4539150 | Benzothiazepine derivatives and their methods of preparation | Tsutomu Katakami, Nobuyuki Fukazawa, Hajime Iizuka, Isao Shirakawa | 1985-09-03 |
| 4523011 | Process for preparing 6-(substituted phenyl)-4,5-dihydro-3(2H)-pyridazinone compounds | Tsutomu Katakami, Nobuyuki Fukazawa, Hajime Iizuka, Joji Kamiya, Yasuhito Tanaka +1 more | 1985-06-11 |
| 4521415 | 6-(Substituted phenyl)-4,5-dihydro-3(2H)-pyridazinone compounds | Tsutomu Katakami, Nobuyuki Fukazawa, Hajime Iizuka, Joji Kamiya, Yasuhito Tanaka +1 more | 1985-06-04 |