Yuzo Usui
9Patents
7h-index
7Co-inventors
56Inventor score
Filing activity: Dec 8, 1978 → Sep 15, 2000
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5883839A | Waveform stabilizing drive circuit for modularized memory | Physics | 43 | Expired |
| US6298245A | IC card-type radio communication device | Electricity | 19 | Expired |
| US5764591A | Memory device and memory control circuit | Physics | 16 | Expired |
| US5926061A | Power supply noise eliminating method and semiconductor device | Electricity | 15 | Expired |
| US6336039B1 | IC card-type radio communication device | Electricity | 14 | Expired |
| US6124839A | Liquid crystal display driving circuit and liquid crystal display having parallel resonant circuit for reduced power consumption | Physics | 7 | Expired |
| US4355246A | Transistor-transistor logic circuit | Electricity | 7 | Expired |
| US5146188A | Constant current circuit and an oscillating circuit controlled by the same | Electricity | 6 | Expired |
| US6507620B1 | Noise elimination method and transmission circuit | Electricity | 6 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.