Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4853286 | Wafer processing film | Osamu Narimatsu, Kazuyoshi Komatsu, Yasuhiro Shibata | 1989-08-01 |
| 4814124 | Preparation of gas permeable porous film | Mari Aoyama, Syoichi Tsuji, Toshiyuki Ishii, Tomohide Tanaka | 1989-03-21 |