Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741775 | Optical switch | Ken Sakuma, Daigo Fujita, Hideyuki Hosoya | 2004-05-25 |
| 5241417 | Multi-layered optical filter film and production method thereof | — | 1993-08-31 |
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6741775 | Optical switch | Ken Sakuma, Daigo Fujita, Hideyuki Hosoya | 2004-05-25 |
| 5241417 | Multi-layered optical filter film and production method thereof | — | 1993-08-31 |