Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7976853 | Process for producing coated preparation | Masahiko Koike, Hiroyoshi Koyama, Naoru Hamaguchi | 2011-07-12 |
| 6740339 | Quickly disintegrating solid preparations | Hiroyoshi Koyama | 2004-05-25 |
| 5252336 | Liposome composition whose liposome membrane contains a polyoxyethylene derivative | Katsumi Iga, Yasuaki Ogawa | 1993-10-12 |