Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871820 | Alpha-fluoroacrylic acid polymer and its use | Takashi Yasuhara | 1989-10-03 |
| 4832712 | Gas separating membrane | Takashi Yasuhara, Takahiro Kitahara | 1989-05-23 |
| 4810766 | Acryloxyorganosiloxane polymer | Takashi Yasuhara, Takahiro Kitahara | 1989-03-07 |