Issued Patents 2005
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 6895182 | Optical ring transmission system using squelch method | Tsutomu Chikazawa, Yoshihisa Ikeda, Takanori Yasui, Atsuki Taniguchi, Masahiro Shioda | 2005-05-17 |
| 6879558 | Switching method for bidirectional line switched ring and node apparatus used in the ring | Takashi Honda, Hiroshi Kanzawa | 2005-04-12 |