Issued Patents 1997
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5668111 | Sustained-release preparation | Shigeru Kamei, Yasuaki Ogawa | 1997-09-16 |
| 5665394 | Matrix for sustained-release preparation | Akira Saikawa, Kayoko Okamoto, Shigeru Kamei, Masahisa Oka, Atsunori Sano | 1997-09-09 |
| 5594091 | Matrix for sustained-release preparation | Akira Saikawa, Kayoko Okamoto, Shigeru Kamei, Masahisa Oka, Atsunori Sano | 1997-01-14 |
| 5591713 | Water-soluble composition for sustained-release | Minoru Yamada, Yasuaki Ogawa | 1997-01-07 |