Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5650463 | Carbon fiber-reinforced polimide resin composition | Akio Matsuyama, Eiji Senoue, Fumiaki Kuwano, Osamu Yasui, Tadashi Kobayashi | 1997-07-22 |
| 5646238 | Preparation process of polyhydroxycarboxylic acid | Kan Ikeda, Shoji Obuchi | 1997-07-08 |
| 5616783 | Purification process of polyhydroxycarboxylic acid | Yasunori Yoshida, Katsuji Watanabe, Shoji Obuchi | 1997-04-01 |