Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5227238 | Carbon fiber chopped strands and method of production thereof | Minoru Hirai, Masakazu Ataka, Katsumi Nakama, Yoh-ichi Maeda | 1993-07-13 |
| 4898700 | Process for producing preoxidized fibers from acrylic fibers | Osamu Yoshinari, Yoshifumi Kawakatsu, Hayashi Takahashi | 1990-02-06 |
| 4659623 | Acrylic fibers for producing preoxidized fibers | Osamu Yoshinari, Yoshifumi Kawakatsu, Hayashi Takahashi | 1987-04-21 |
| 4522801 | Process for producing carbon fiber or graphite fiber | Osamu Yoshinari, Yoshifumi Kawakatsu | 1985-06-11 |