Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6569987 | Process for producing meta-aromatic polyamide fiber | Takashi Yoshitomi, Hirozumi Iwasaki, Kotaro Takiue | 2003-05-27 |
| 5852087 | Easily dyeable meta-linkage-containing aromatic polyamide fibers | Koki Sasaki | 1998-12-22 |
| 5145616 | Process for the preparation of pitch-based carbon fiber | Jiro Sadanobu, Tsutomu Nakamura | 1992-09-08 |
| 5047292 | Pitch-based carbon fiber and process for preparation thereof | Jiro Sadanobu, Tsutomu Nakamura | 1991-09-10 |