Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886819 | Dihydropyridine derivatives and pharmaceutical composition thereof | Atsuyuki Ashimori, Yoshihisa Inoue, Chikara Fukaya, Kazumasa Yokoyama | 1989-12-12 |
| 4868318 | Perfluoro chemicals and polyfluorinated compounds | Kirby V. Scherer, Jr., Kouichi Yamanouchi, Kazumasa Yokoyama | 1989-09-19 |
| 4849429 | Certain 1,4-dihydro-2,6-dilower-alkyl-4-(mono-substituted pyridyl) useful for treating coronary artery or cerebral artery disease | Chikara Fukaya, Atsuyuki Ashimori, Kazumasa Yokoyama | 1989-07-18 |