Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4483751 | Process of treating a nodic oxide film, printed wiring board and process of making the same | Seizo Murayama, Masatsugu Maejima, Takayoshi Usuki, Kohichi Saruwatari | 1984-11-20 |
| 4368107 | Method of surface treatment of porous material | Masatsugu Maejima, Koichi Saruwatari | 1983-01-11 |
| 4230539 | Method for surface treatment of anodic oxide film | Kohichi Saruwatari, Masatsugu Maejima, Takao Suzuki | 1980-10-28 |