Issued Patents All Time
Showing 1–5 of 5 patents
| Patent # | Title | Co-Inventors | Date |
|---|---|---|---|
| 4872745 | Cover for car lamps | Toshishige Sakamoto, Toshiyasu Ito, Junichi Shimada | 1989-10-10 |
| 4695931 | Voltage/frequency converter with frequency drift compensation loop | Mitsuru Yamaura | 1987-09-22 |
| 4371947 | ROM Controlled protective relay system for power transmission network | — | 1983-02-01 |
| 4370571 | Relay device | Fumio Andow | 1983-01-25 |
| 4276605 | Method and apparatus for supervising a digital protective relaying system | Eiichi Okamoto, Masao Hori | 1981-06-30 |