Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4818458 | Method of producing acrylic fibers | Akira Sugiura, Noboru Ogawa | 1989-04-04 |
| 4562114 | Water-absorbing acrylic fibers | Mitsuru Wakitani | 1985-12-31 |
| 4510111 | Process for producing acrylic fibers having non-circular cross-sections | Yozo Shiomi, Akira Yamane | 1985-04-09 |
| 4448740 | Process for producing acrylic fibers with excellent surface smoothness | Yozo Shiomi, Akira Yamane | 1984-05-15 |
| 4378343 | Process for producing carbon fiber tows | Akira Sugiura, Kunio Maruyama | 1983-03-29 |