Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5681512 | Process for producing homogeneous phase melt of polyacrylonitrile | Hirotaka Shiota, Ryosuke Nishida, Takahisa Kida, Yoshihiro Watanabe, Ryuichi Kasahara | 1997-10-28 |
| 5674975 | Process for manufacturing an improved acrylonitrile polymer melt | Hirotaka Shiota, Ryosuke Nishida, Takahisa Kida, Yoshihiro Watanabe, Ryuichi Kasahara | 1997-10-07 |
| 5593763 | Acrylic fibrous material and humidity controller provided therewith | Shozo Shigita | 1997-01-14 |