Issued Patents 1989
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4851508 | Polyester fibers having high strength and high modulus and process for producing the same | Kazuo Kurita, Masahiro Hayashi, Toshihiko Ohta, Hideaki Ishihara, Wataru Yoshikawa +2 more | 1989-07-25 |
| 4824619 | Process of producing polyethylene drawn filaments and drawn films | Toshihiko Ohta | 1989-04-25 |
| 4800121 | Drawn polyethylene filament tensile member | Toshihiko Ohta, Masahiro Hayashi | 1989-01-24 |