Issued Patents 2004
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6834135 | Optical switching system | Toshihiko Yasue | 2004-12-21 |
| 6832047 | Optical transmission system for frequency-multiplexed signal | — | 2004-12-14 |
| 6775483 | System, device, and method for wavelength-division multiplex optical transmission | Tsuyoshi Ikushima, Hiroyuki Sasai | 2004-08-10 |
| 6754448 | Multiplex transmission apparatus | — | 2004-06-22 |
| 6690893 | Optical transmitter | Jun Ohya | 2004-02-10 |
| 6687465 | FM modulator | Kuniaki Utsumi, Satoshi Furusawa | 2004-02-03 |