Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4891262 | High strength wet-laid nonwoven fabric and process for producing same | Tsukasa Shima | 1990-01-02 |
| 4426421 | Multilayer composite sheet useful as a substrate for artificial leather | Tsukasa Shima | 1984-01-17 |