Yoshihiko Akaiwa
19Patents
12h-index
17Co-inventors
75Inventor score
Filing activity: Sep 2, 1975 → Oct 23, 2008
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5097484A | Diversity transmission and reception method and equipment | Electricity | 199 | Expired |
| US4355401A | Radio transmitter/receiver for digital and analog communications system | Electricity | 126 | Expired |
| US4817116A | Digital radio communication system utilizing quadrature modulated carrier waves | Electricity | 76 | Expired |
| US5710995A | Adaptive antenna receiver | Electricity | 58 | Expired |
| US4747101A | Method of determining optimal transmission channel in multi-station communications system | Electricity | 58 | Expired |
| US7098734B2 | Distortion-compensated amplifier using predistortion technique | Electricity | 39 | Expired |
| US4776039A | Receiver for mobile communication systems | Electricity | 27 | Expired |
| US4882766A | Terminal station of a radio communication network capable of effectively using radio channels assigned to the network | Electricity | 21 | Expired |
| US4752742A | Frequency demodulator for recovering digital signals | Electricity | 21 | Expired |
| US4661970A | Cordless telephone system | Electricity | 19 | Expired |
| US5109529A | Method of assigning frequency channel in mobile communications system | Electricity | 17 | Expired |
| US8175551B2 | Distortion compensation device for use in high-frequency power amplifier | Electricity | 15 | Active |
| US6859099B2 | Nonlinear distortion compensation power amplifier | Electricity | 12 | Expired |
| US7944295B2 | Predistorter | Electricity | 10 | Active |
| US4652699A | Voice scrambler using frequency-inversion and band-splitting technique | Electricity | 9 | Expired |
| US4050038A | Edge-guided mode non-reciprocal circuit element for microwave energy | Electricity | 5 | Expired |
| US4651107A | Demodulator for digital FM signals | Electricity | 5 | Expired |
| US7529316B2 | Transmitter | Electricity | 1 | Expired |
| US5181182A | Multi-level band-restricted waveform generator | Physics | 1 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.