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