Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6792176 | Optical switch expanding method, optical switch, and optical crossconnecting apparatus | Tetsuya Nishi | 2004-09-14 |
| 6768573 | Polarization control optical space switch | Tetsuya Nishi, Takuji Maeda, Tsuyoshi Yamamoto | 2004-07-27 |
| 6741811 | Optical cross-connect device and system having the device | Tetsuya Nishi, Ichiro Nakajima, Takuji Maeda, Toru Katagiri | 2004-05-25 |
| 6718081 | Optical switch | Ichiro Nakajima | 2004-04-06 |
| 6708000 | Photonic node, photonic nodes for transmission and reception, and method of restoring traffic upon occurrence of link failure in optical path network | Tetsuya Nishi | 2004-03-16 |
| 6697546 | Optical node system and switched connection method | Sadao Ibukuro, Junichi Yoshimura | 2004-02-24 |