Fumio Andow
17Patents
9h-index
17Co-inventors
69Inventor score
Filing activity: Jan 19, 1976 → Jul 19, 1996
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4803635A | Information data output device for electric-power systems | Electricity | 32 | Expired |
| US4371908A | Digital protective relaying systems | Electricity | 23 | Expired |
| US4774621A | Protective control method and apparatus | Mechanical Engineering; Lighting; Heating | 21 | Expired |
| US4825326A | Digital calculation type differential relay | Electricity | 20 | Expired |
| US4309767A | Monitor system for a digital signal | Electricity | 19 | Expired |
| US4561120A | Protective relaying system | Electricity | 14 | Expired |
| US4073009A | Apparatus for calculating amplitude values of sinusoidal waves | Physics | 14 | Expired |
| US4541058A | Protective relay system | Electricity | 11 | Expired |
| US5796630A | Protective relay system provided with difference and addition filters | Electricity | 9 | Expired |
| US4507700A | Protective relaying system | Electricity | 9 | Expired |
| US4511981A | Protective relaying system | Electricity | 7 | Expired |
| US4212046A | Distance relaying systems | Electricity | 5 | Expired |
| US4071873A | Apparatus for detecting abnormal conditions of transmitted signals | Electricity | 5 | Expired |
| US4484246A | Reclosing device for transmission line | Electricity | 5 | Expired |
| US4073008A | Apparatus for calculating amplitude values | Physics | 4 | Expired |
| US4056839A | Protective relay devices | Electricity | 4 | Expired |
| US4370571A | Relay device | Physics | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.