Issued Patents All Time
Showing 1–4 of 4 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6031644 | Method, device, and system for controlling wavelength of optical signal | — | 2000-02-29 |
| 5577096 | Transmission system having stand-by line switching facility | Kouichi Kitano | 1996-11-19 |
| 5311347 | Optical communication system with automatic gain control | Susumu Kubo, Katsuo Suzuki | 1994-05-10 |
| 5123020 | Phase synchronization pull-in system in bit error detecting apparatus | Junichi Yoshimura | 1992-06-16 |