Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4777116 | Method for manufacturing phase gratings of a combination pattern-refraction modification type | Masao Uetsuki | 1988-10-11 |
| 4759607 | Phase gratings of a combination pattern-refraction modification type | Masao Uetsuki | 1988-07-26 |
| 4749245 | Thin film waveguide device and manufacturing method for making same | Masao Uetsuki, Junji Nakagawa | 1988-06-07 |