Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 9216193 | Crosslinked hyaluronic acid composition and self-crosslinking hyaluronic acid particles | Masamichi Hashimoto, Tadashi Morikawa, Akio Ohno, Kei Takahashi, Daisuke OGASAWARA +3 more | 2015-12-22 |
| 7807657 | Separate type medical material | Yasukazu Himeda, Masamichi Hashimoto, Toshihiko Umeda, Teruzou Miyoshi | 2010-10-05 |
| 7014860 | Hyaluronic acid gel, process for producing the same, and medical material containing the same | Masatoshi Kawata, Akio Okamoto, Kazuhiro Ohshima, Osamu Yamamoto, Teruzou Miyoshi +4 more | 2006-03-21 |
| 6790461 | Hyaluronic acid gel, method of its production and medical material containing it | Akio Okamoto, Masatoshi Kawata, Kazuhiro Oshima, Masamichi Hashimoto, Kazuhiko Arai | 2004-09-14 |
| 6638538 | Hyaluronic acid gel composition, process for producing the same, and medical material containing the same | Masamichi Hashimoto, Toshihiko Umeda, Kazuhiko Arai, Osamu Yamamoto, Yasukazu Himeda | 2003-10-28 |
| 6387413 | Hyaluronic acid gel, a method of its production and medical material containing it | Akio Okamoto, Masatoshi Kawata, Kazuhiro Oshima, Masamichi Hashimoto, Kazuhiko Arai +1 more | 2002-05-14 |