Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 5383221 | Mobile station unit and channel switching method | Masakazu Shirakawa | 1995-01-17 |
| 4815127 | Communication system using unbalanced communication paths | Yasuji Sato | 1989-03-21 |