Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4307566 | Bulky spun yarn and a method for manufacturing the same from a combination of thermally extensible and thermally shrinkable fibers | Osamu Wada, Shunichi Takeda | 1981-12-29 |
| 4263777 | Multi-layered bulky spun yarn and a process for manufacturing the same | Osamu Wada | 1981-04-28 |