Issued Patents All Time
Showing 1–2 of 2 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4419753 | Network connection system | Yasuo Satake, Toru Masuda | 1983-12-06 |
| 4380064 | Digital audio signal control system for a timedivision switching system | Hiroshi Ishikawa, Eiji Minamitani | 1983-04-12 |