Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4898700 | Process for producing preoxidized fibers from acrylic fibers | Yoshifumi Kawakatsu, Hayashi Takahashi, Hideaki Fukuizumi | 1990-02-06 |
| 4753777 | Apparatus for continuous production of carbon fibers | Makoto Sugiyama, Hideki Nakai | 1988-06-28 |
| 4659623 | Acrylic fibers for producing preoxidized fibers | Yoshifumi Kawakatsu, Hayashi Takahashi, Hideaki Fukuizumi | 1987-04-21 |
| 4543241 | Method and apparatus for continuous production of carbon fibers | Makoto Sugiyama, Hideki Nakai | 1985-09-24 |
| 4522801 | Process for producing carbon fiber or graphite fiber | Yoshifumi Kawakatsu, Hideaki Fukuizumi | 1985-06-11 |