Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| D304945 | Transmission and reception unit for a mini earth station | Yuhei Kosugi | 1989-12-05 |
| D304946 | Transmitter and receiver for microwave communications | Shigeo Ogawa | 1989-12-05 |