Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 7887728 | Spinning pack for dry-wet spinning, diverting guide for fiber bundle, and apparatus and method for producing fiber bundle | Kohei Takatani, Koji Matsumoto, Kazuhisa Narusawa | 2011-02-15 |
| 6428892 | Carbon fibers, acrylic fibers and process for producing the acrylic fibers | Yoji Matsuhisa, Katsumi Yamasaki, Akira Okuda | 2002-08-06 |
| 6368711 | Carbon fibers, acrylic fibers and process for producing the acrylic fibers | Yoji Matsuhisa, Katsumi Yamasaki, Akira Okuda | 2002-04-09 |
| 6221490 | Carbon fibers, acrylic fibers and process for producing the acrylic fibers | Yoji Matsuhisa, Katsumi Yamasaki, Akira Okuda | 2001-04-24 |
| 6103211 | Carbon fibers, acrylic fibers, and production processes thereof | Yoji Matsuhisa, Katsumi Yamasaki, Akira Okuda | 2000-08-15 |