Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7807657 | Separate type medical material | Yoshiaki Miyata, Masamichi Hashimoto, Toshihiko Umeda, Teruzou Miyoshi | 2010-10-05 |
| 7514097 | Use of soluble cellulose derivative having been made hardly soluble in water and process for producing the same | Toshihiko Umeda | 2009-04-07 |
| 6638538 | Hyaluronic acid gel composition, process for producing the same, and medical material containing the same | Masamichi Hashimoto, Toshihiko Umeda, Kazuhiko Arai, Yoshiaki Miyata, Osamu Yamamoto | 2003-10-28 |