Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7537823 | High-whiteness hygroscopic fiber | Shigeru Nakashima, Masao Ieno | 2009-05-26 |
| 5973106 | Acrylonitrile polymer compositions, method for producing the compositions, and method for producing shaped articles from the compositions | Hirotaka Shiota, Ryosuke Nishida, Takahisa Kida, Yoshihiro Watanabe, Ryuichi Kasahara | 1999-10-26 |
| 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 |
| 5344569 | Process for recovering thiocyanate | Shiro Kawasaki | 1994-09-06 |
| 5300229 | Process for removing colored components from solvent for polyacrylonitrile | Shiro Kawasaki | 1994-04-05 |