Issued Patents All Time
Showing 1–8 of 8 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4923662 | Process for producing polyester fibers | Yoshihiko Teramoto | 1990-05-08 |
| 4917848 | Process for producing polyester fibers | Youichi Watanabe, Susumu Tate | 1990-04-17 |
| 4859389 | Process for preparing polyamide fibers having improved properties | Hideaki Ishihara | 1989-08-22 |
| 4851508 | Polyester fibers having high strength and high modulus and process for producing the same | Masahiro Hayashi, Toshihiko Ohta, Hideaki Ishihara, Fujio Okada, Wataru Yoshikawa +2 more | 1989-07-25 |
| 4701377 | Polyamide fibers having improved properties, and their production | Hideaki Ishihara | 1987-10-20 |
| 4624816 | Process for the manufacture of polyamide fibers | Hideaki Ishihara | 1986-11-25 |
| 4504545 | Polyamide fibers having improved properties and their production | Hideaki Ishihara | 1985-03-12 |
| 4496630 | Polyamide fibers having improved properties and their production | Hideaki Ishihara | 1985-01-29 |