Issued Patents All Time
Showing 1–7 of 7 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5756031 | Process for preparing polybenzazole filaments and fiber | Ihachiro Iba, Timothy L. Faley, Michael E. Mills, Ira M. Thumma | 1998-05-26 |
| 5585052 | Process for the preparation of polybenzazole staple fiber | Chieh-Chun Chau, Ritchie A. Wessling, Masaru Nakagawa, Takaharu Ichiryu | 1996-12-17 |
| 5393478 | Process for coagulation and washing of polybenzazole fibers | Ashish Sen, Kazunori Katoh | 1995-02-28 |
| 5288445 | Rapid heat-treatment method for polybenzaole fiber | Steven Rosenberg, Willard E. Alexander, Chieh-Chun Chau | 1994-02-22 |
| 4963310 | Process for production of polyester polyurethane elastomeric fibers | Hideyuki Mitamura, Yoshikazu Arimatsu, Kenichi Katsuo | 1990-10-16 |
| 4824929 | Polymeric antioxidant and process for production thereof | Yoshikazu Arimatsu, Hideyuki Mitamura, Minoru Saito, Atsushi Kaji, Kenichi Katsuo | 1989-04-25 |
| 4499221 | Polyurethane composition improved in dyeing property | Minoru Saitoh, Yoshikazu Arimatsu, Hideyuki Mitamura | 1985-02-12 |