Issued Patents 1989
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4809268 | Multipoint data communication with a supervisory system for detecting a malfunctioning remote station | Akira Fujii | 1989-02-28 |
| 4800560 | Synchronization control capable of establishing synchronization without transmission of distance information between control and local earth stations | Takahiro Aoki | 1989-01-24 |