Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5206339 | Extrusion process of polyimide and polyimide pellet used for the process | Masumi Saruwatari, Yasuhiro Fujii | 1993-04-27 |
| 5069848 | Extrusion process of polyimide and polyimide pellet used for the process | Masumi Saruwatari, Yasuhiro Fujii | 1991-12-03 |
| 4921652 | Process for producing a porous film | Syoichi Ito, Shuji Matsumura, Hisatosi Suzuki, Michiyasu Ito | 1990-05-01 |
| 4921653 | Method of forming a porous polyolefin film | Mari Aoyama, Michiyasu Ito, Toshiyuki Ishii, Tomohide Tanaka | 1990-05-01 |
| 4814124 | Preparation of gas permeable porous film | Mari Aoyama, Michiyasu Ito, Toshiyuki Ishii, Tomohide Tanaka | 1989-03-21 |
| 4699733 | Resin compostion for porous film and film prepared therefrom | Shuji Matsumura, Michiyasu Ito, Hisatosi Suzuki, Syoichi Ito | 1987-10-13 |