Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5939138 | Treatment for reducing friction of seat belts | Hideo Nagahara, Hiroyuki Terasawa, Eiji Ohtsubo | 1999-08-17 |
| 5514471 | High-strength polyamide fiber | Ryoji Okano, Hideo Nagahara, Michikane Tuduki | 1996-05-07 |
| 4987030 | High-tenacity conjugated fiber and process for preparation thereof | Takuji Sato, Koichi Kubota, Masaharu Yamamoto | 1991-01-22 |
| 4973236 | Apparatus for melt-spinning thermoplastic polymer fibers | Katsumi Hasegawa, Michio Ohno, Kotaro Fujioka | 1990-11-27 |
| 4863662 | Method for melt-spinning thermoplastic polymer fibers | Katsumi Hasegawa, Michio Ohno, Kotaro Fujioka | 1989-09-05 |
| 4491657 | Polyester multifilament yarn and process for producing thereof | Kotaro Fujioka, Hajime Arai, Hideo Saruyama | 1985-01-01 |
| 4338277 | Process for producing high knot strength polyamide monofilaments | Kotaro Fujioka | 1982-07-06 |