Issued Patents All Time
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8564744 | Flat panel display device | — | 2013-10-22 |
| 7046872 | Optical switch, optical add-drop module, and optical communication system | Ken Sakuma, Hirokuni Ogawa, Koji Omichi, Hideyuki Hosoya | 2006-05-16 |
| 6741775 | Optical switch | Ken Sakuma, Toshisada Sekiguchi, Hideyuki Hosoya | 2004-05-25 |