Issued Patents All Time
Showing 26–29 of 29 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4309767 | Monitor system for a digital signal | Fumio Andow, Kyotaro Kondow | 1982-01-05 |
| 4281386 | Systems for detecting faults in electric power systems | Ryotaro Kondow | 1981-07-28 |
| 4276605 | Method and apparatus for supervising a digital protective relaying system | Norio Fujisawa, Masao Hori | 1981-06-30 |
| 4212046 | Distance relaying systems | Fumio Andow, Tetsuo Matsushima | 1980-07-08 |