Kaoru Ishida
86Patents
16h-index
75Co-inventors
83Inventor score
Filing activity: May 15, 1996 → Mar 29, 2012
Most-cited inventions
| Patent | Title | Area | Cited by | Status |
|---|---|---|---|---|
| US5926466A | Time division multiple access FDD wireless unit and time division multiple access FDD/TDD dual mode wireless unit | Electricity | 76 | Expired |
| US7081795B2 | Predistortion circuit, low-distortion power amplifier, and control methods therefor | Electricity | 67 | Expired |
| US6081694A | Mobile telephone transmitter with internal auxiliary matching circuit | Electricity | 52 | Expired |
| US5973557A | High efficiency linear power amplifier of plural frequency bands and high efficiency power amplifier | Electricity | 51 | Expired |
| US6847258B2 | Power amplifier, power amplifying method and radio communication apparatus | Electricity | 46 | Expired |
| US5852384A | Dual band oscillator circuit using strip line resonators | Electricity | 43 | Expired |
| US6326845A | Feedforward amplifier | Electricity | 40 | Expired |
| US6147571A | Dual-band multilayer bandpass filter | Electricity | 35 | Expired |
| US5770970A | Transmitter of wireless system and high frequency power amplifier used therein | Electricity | 28 | Expired |
| US6054900A | Power amplifier MMIC and mobile communication terminal | Electricity | 27 | Expired |
| US6201439A | Power splitter/ combiner circuit, high power amplifier and balun circuit | Electricity | 26 | Expired |
| US6114911A | Power amplifier | Electricity | 25 | Expired |
| US6545542B2 | Power amplifier with coupler for cross-coupling amplifiers for reduction of differential frequency component | Electricity | 20 | Expired |
| US6130897A | Time division multiple access FDD/TDD dual mode radio and a time division multiple access TDD dual band system | Electricity | 19 | Expired |
| US6006080A | Receiving mixer circuit for mobile radio transceiver designed to operate with multiple modulation modes and multiple frequency bands | Electricity | 16 | Expired |
| US6169461A | High-frequency oscillating circuit | Electricity | 16 | Expired |
| US6980831B2 | Radio communication base state system including optical advanced base station | Emerging Cross-Sectional Technologies | 14 | Expired |
| US6972621B2 | Power amplifier | Electricity | 13 | Expired |
| US6803837B2 | Power splitter/combiner circuit, high power amplifier and balun circuit | Electricity | 11 | Expired |
| US6329875A | Power amplifier, power control method for power amplifier, and communication equipment | Electricity | 10 | Expired |
| US6989713B2 | Predistortion circuit, low-distortion power amplifier, and control methods therefor | Electricity | 8 | Expired |
| US7869671B2 | Three-dimensional optical waveguide, method of manufacturing same, optical module, and optical transmission system | Emerging Cross-Sectional Technologies | 8 | Active |
| US7437132B2 | Receiving device, semiconductor integrated circuit, transmitting/receiving device, transport apparatus portable transmitting/receiving device, communication system and receiving method | Emerging Cross-Sectional Technologies | 8 | Active |
| US6037837A | Feed forward amplifier | Electricity | 8 | Expired |
| US6720829B2 | Distortion-compensated amplifying circuit | Electricity | 8 | Expired |
Source: USPTO / EPO open patent data. Inventor disambiguation is heuristic; counts are objective bibliographic measures.