Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4882766 | Terminal station of a radio communication network capable of effectively using radio channels assigned to the network | — | 1989-11-21 |
| 4817116 | Digital radio communication system utilizing quadrature modulated carrier waves | Yoshinori Nagata, Yoshio Matsuo | 1989-03-28 |