Issued Patents 2011
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 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 |