Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4517189 | 2,6,7,8-Substituted quinazolines, process for production thereof, and use thereof | Masayuki Ishikawa, Hiroshi Azuma, Akiko Sugimoto, Noriko Takahashi | 1985-05-14 |
| 4293553 | 1-Phthalazone derivatives, and use thereof | Masayuki Ishikawa, Hiromichi Tanaka, Yukuo Eguchi, Shigeru Ito, Masahiko Kobayashi | 1981-10-06 |
| 4276295 | 3-Aromatic moiety substituted-4(3H)-quinazolinones, process for production thereof, and use thereof | Masayuki Ishikawa, Hiromichi Tanaka, Yukuo Eguchi, Shigeru Ito, Masahiko Kobayashi | 1981-06-30 |