Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4871501 | Process for melt spinning aromatic polyester | Hiroaki Sugimoto, Kazuo Hayatsu, Toshiyuki Kobashi | 1989-10-03 |
| 4865790 | Process for producing aromatic polyester fiber | Hiroaki Sugimoto, Kazuo Hayatsu, Toshiyuki Kobashi, Jun Takagi | 1989-09-12 |
| 4743416 | Melt spinning process of aromatic polyester | Hiroaki Sugimoto, Toshiyuki Kobashi | 1988-05-10 |
| 4659529 | Method for the production of high strength polyacrylonitrile fiber | Toshiyuki Kobashi | 1987-04-21 |
| 4658004 | Polyacrylonitrile fiber with high strength and high modulus of elasticity | Toshiyuki Kobashi | 1987-04-14 |
| 4535027 | High strength polyacrylonitrile fiber and method of producing the same | Toshiyuki Kobashi | 1985-08-13 |
| 4409162 | Process for producing acrylonitrile separation membranes in fibrous form | — | 1983-10-11 |
| 4283359 | Process for producing polyacrylonitrile reverse osmotic membranes | Nobuhiro Tsutsui, Ichiki Murase | 1981-08-11 |