Issued Patents All Time
Showing 1–6 of 6 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 8595333 | Communication apparatus, communication system, communication program, and control method | Kazutaka Kikuta | 2013-11-26 |
| 8462779 | Frame transfer apparatus and frame transfer method | Ken Igarashi | 2013-06-11 |
| 8199639 | Path protection method and layer-2 switch | Masami Doukai, Kenichi Kawarai | 2012-06-12 |
| 8040814 | Relay apparatus, conduction confirmation method thereof and conduction confirmation circuit | — | 2011-10-18 |
| 7864668 | Communication apparatus and path switching method | Ken Igarashi | 2011-01-04 |
| 7609656 | Bridge device, method of controlling bridge device, and control program | — | 2009-10-27 |