Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4973236 | Apparatus for melt-spinning thermoplastic polymer fibers | Katsumi Hasegawa, Michio Ohno, Isoo Saito | 1990-11-27 |
| 4863662 | Method for melt-spinning thermoplastic polymer fibers | Katsumi Hasegawa, Michio Ohno, Isoo Saito | 1989-09-05 |
| 4491657 | Polyester multifilament yarn and process for producing thereof | Isoo Saito, Hajime Arai, Hideo Saruyama | 1985-01-01 |
| 4338277 | Process for producing high knot strength polyamide monofilaments | Isoo Saito | 1982-07-06 |