Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6179967 | Purification process of pentrafluoroethane | Reiji Takahashi | 2001-01-30 |
| 6047560 | Process for separating pentafluoroethane and 1,1,1-trifluoroethane | Toshio Nagayasu, Reiji Takahashi | 2000-04-11 |
| 5138029 | Biodegradable or biocompatible copolymer and process for producing same | Masaaki Nishioka, Hidemitsu Takinishi, Shiro Fukuyama, Hiromi Niitsu | 1992-08-11 |