Ichiro Ikushima
6Patents
6h-index
18Co-inventors
56Inventor score
Filing activity: Nov 8, 1977 → Mar 26, 1987
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US4199222A | Optical device with a laser-to-fiber coupler | Physics | 68 | Expired |
| US4749961A | Voltage controlled oscillator and phase-locked loop using it | Emerging Cross-Sectional Technologies | 18 | Expired |
| US4174491A | Mount for a light emitting device | Electricity | 16 | Expired |
| US4375037A | Receiving circuit | Electricity | 15 | Expired |
| US4774480A | Phase-locked loop having separate smoothing and loop filters | Emerging Cross-Sectional Technologies | 14 | Expired |
| US4741595A | Optical transmission device | Physics | 12 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.