Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5648174 | Highly hard thin film and method for production thereof | Akihisa Inoue, Tsuyoshi Masumoto, Junichi Nagahora | 1997-07-15 |
| 5595814 | Wear resistant film | Shinichiro Maruyama | 1997-01-21 |