Issued Patents 1997
Showing 1–3 of 3 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5671074 | Optical multiplex transmission equipment and method | Keiji Tomooka, Naohiro Sakakida, Shin Nishimura, Hironari Matsuda, Satoshi Aoki +6 more | 1997-09-23 |
| 5634097 | Virtual path connector and virtual path tracing method and apparatus | Toshihiko Fujita, Hiromi Ueda, Haruhiko Matsunaga | 1997-05-27 |
| 5600631 | Self-healing ring switch and method of controlling the same | Masahiro Takatori, Hiroyuki Fujita | 1997-02-04 |