Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898700 | Process for producing preoxidized fibers from acrylic fibers | Osamu Yoshinari, Hayashi Takahashi, Hideaki Fukuizumi | 1990-02-06 |
| 4659623 | Acrylic fibers for producing preoxidized fibers | Osamu Yoshinari, Hayashi Takahashi, Hideaki Fukuizumi | 1987-04-21 |
| 4522801 | Process for producing carbon fiber or graphite fiber | Osamu Yoshinari, Hideaki Fukuizumi | 1985-06-11 |