Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4663232 | Acrylic fiber having excellent durability and dyeability and process for preparation thereof | Yutaka Honda, Shuji Kajita | 1987-05-05 |
| 4634470 | Cellulose dope, process for preparation and method for application thereof | Kunihiko Okajima | 1987-01-06 |
| 4579943 | Cellulose derivative excellent in liquid absorbing property, process for preparing same and structure containing same | Kunihiko Okajima | 1986-04-01 |
| 4486119 | Mesophase dope containing cellulose derivative and inorganic acid | Kunihiko Okajima, Toshihiko Matsui | 1984-12-04 |
| 4389523 | Cellulose sulfate salt having anti-coagulating action and process for preparing same | Kunihiko Okajima, Toshihiko Matsui | 1983-06-21 |
| 4370168 | Mesophase dope containing cellulose derivative and inorganic acid | Kunihiko Okajima, Toshihiko Matsui | 1983-01-25 |