Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8633254 | Preparation of gels derived from carboxymethyl cellulose alkali metal salt | Machiko Takigami, Haruyo Amada, Naotsugu Nagasawa, Toshiaki Yagi, Masao Tamada +2 more | 2014-01-21 |
| 8586366 | Gel for radiation dosimeter and radiation dosimeter which uses the same | Naotsugu Nagasawa, Masao Tamada, Takuji Kojima, Yuichi Sato, Akio Ohta +2 more | 2013-11-19 |
| 8481718 | Method of manufacturing gel using polysaccharides as raw materials | Toshiaki Yagi, Naotsugu Nagasawa, Masao Tamada, Charito T. Aranilla | 2013-07-09 |
| 8481719 | Method of manufacturing gel using polysaccharides as raw materials | Toshiaki Yagi, Naotsugu Nagasawa, Masao Tamada, Charito T. Aranilla | 2013-07-09 |
| 8288496 | Contact lens and its manufacturing method | Toshihiro Sato, Naotsugu Nagasawa, Masao Tamada | 2012-10-16 |