Heijiro Hayami
7Patents
4h-index
9Co-inventors
39Inventor score
Filing activity: Nov 13, 1973 → May 18, 1977
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4090243A | Color separating method and apparatus using statistical techniques | Physics | 31 | Expired |
| US4072958A | Ink injection type writing system using amplitude-modulated electrical signals | Electricity | 13 | Expired |
| US3941922A | Facsimile system of run-length | Electricity | 9 | Expired |
| US4034406A | Facsimile signal transmission system | Electricity | 8 | Expired |
| US4020502A | Method and apparatus for separating, combining and rearranging colored images | Electricity | 4 | Expired |
| US4180330A | Method of and a system for color separation | Electricity | 3 | Expired |
| US4011399A | Photographic image pick-up and coding system of run-length type | Electricity | 2 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.