Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4886871 | Melt-stable poly(arylene thioetherketone) and production process thereof | Yoshikatsu Satake, Yutaka Kobayashi, Yo Iizuka, Takayuki Katto, Zenya Shiiki | 1989-12-12 |
| 4837294 | Polyarylene thioether composition containing polyarylene ether nucleating agent | Yukio Ichikawa, Yoshikatsu Satake, Takayuki Katto | 1989-06-06 |
| 4835218 | Composition for drawn film, cold film made of said composition and process for manufacture of said film | Isao Yoshimura, Hideo Hata | 1989-05-30 |