Issued Patents All Time
Showing 1–9 of 9 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4756947 | Grained artificial leather having good color fastness of ultrafine polyamide fibers | Toshio Nishikawa, Shiro Imai, Yuriko Yoshida, 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, Yuriko Yoshida, Masato Shimada, Junnosuke Nagashima +1 more | 1986-11-04 |
| 4612228 | Ultrafine fiber entangled sheet | Hiroyasu Kato | 1986-09-16 |
| 4519804 | Melange-colored sheet and method of producing the same | Hiroyasu Kato, Miyoshi Okamoto | 1985-05-28 |
| 4476186 | Ultrafine fiber entangled sheet and method of producing the same | Hiroyasu Kato | 1984-10-09 |
| 4386127 | Dense, elegant and pliable sheet material comprising fibrous base impregnated with a diol-hindered amine polyurethane system | Minoru Tanaka | 1983-05-31 |
| 4302493 | Dense, elegant and pliable sheet material comprising fibrous base impregnated with a diol-hindered amine polyurethane system | Minoru Tanaka | 1981-11-24 |
| 4286014 | Composite sheet material | Minoro Tanaka, Kitao Shimizu | 1981-08-25 |
| 4212916 | Dense, flexible composite sheet material | Minoru Tanaka, Shunji Mizuguchi | 1980-07-15 |