Issued Patents 1997
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5682408 | Method of transmitting sync clock and sync data between shelves of a synchronous digital hierarchy system | — | 1997-10-28 |
| 5600648 | SDH transmission system | Tomohisa Furuta, Yasuo Takami | 1997-02-04 |