Hitoshi Hirobe
8Patents
7h-index
10Co-inventors
52Inventor score
Filing activity: Nov 10, 1981 → Nov 20, 1987
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4445757A | Zooming device | Physics | 58 | Expired |
| US4821127A | Demagnetizing apparatus for erasing signals recorded on concentric tracks | Physics | 15 | Expired |
| US4558367A | Automatic focusing device for video camera | Electricity | 15 | Expired |
| US4783703A | Television flicker preventing circuit with gamma value conversion prior to field-to-frame conversion | Electricity | 12 | Expired |
| US4792866A | Still picture recording apparatus | Electricity | 11 | Expired |
| US4535364A | Spot exposure adjustment circuit | Electricity | 10 | Expired |
| US4465352A | Automatic focusing device | Physics | 8 | Expired |
| US4719511A | Exposure controlling method for television camera | Electricity | 3 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.