Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5688931 | Polysaccharide derivatives and drug carriers | Hideo Nogusa, Hiroshi Hamana, Toshiro Yano, Masahiro Kajiki, Satoshi Okuno +3 more | 1997-11-18 |
| 5639472 | Percutaneous absorption preparation | Yoshihisa Nakano, Saburo Otsuka | 1997-06-17 |
| 5592273 | Photoconductive drum and transfer apparatus for an image forming apparatus | — | 1997-01-07 |