Issued Patents All Time
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4983001 | Optical interference film having high and low refractive index layers inter-layer connection of which is strengthened | Akira Kawakatsu | 1991-01-08 |
Showing 1–1 of 1 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4983001 | Optical interference film having high and low refractive index layers inter-layer connection of which is strengthened | Akira Kawakatsu | 1991-01-08 |