Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4756947 | Grained artificial leather having good color fastness of ultrafine polyamide fibers | Toshio Nishikawa, Shiro Imai, Kenkichi Yagi, Masato Shimada, Junnosuke Nagashima +1 more | 1988-07-12 |
| 4620852 | Grained artificial leather having good color fastness and dyeing method of ultrafine polyamide fibers | Toshio Nishikawa, Shiro Imai, Kenkichi Yagi, Masato Shimada, Junnosuke Nagashima +1 more | 1986-11-04 |