Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4917848 | Process for producing polyester fibers | Kazuo Kurita, Youichi Watanabe | 1990-04-17 |
| 4851508 | Polyester fibers having high strength and high modulus and process for producing the same | Kazuo Kurita, Masahiro Hayashi, Toshihiko Ohta, Hideaki Ishihara, Fujio Okada +2 more | 1989-07-25 |
| 4742151 | Ultra-high-molecular-weight polyesters | Haruhiko Narusawa, Youichi Watanabe, Akira Chiba | 1988-05-03 |
| 4613664 | Process for production of polyester | Hiroshi Hashimoto, Akira Chiba | 1986-09-23 |