Inventor · disambiguated record
Kaoru Ishida
Also filed as: ISHIDA KAORU
86 granted patents·7 pending applications·1,276 citations·filing 1996–2012
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD54PANASONIC CORP20ISHIDA KAORU2KAWAI TAKATOSHI2KITAMURA RYO2
Top patents by PatentIndex Score
93 records- 0198US7081795B2Predistortion circuit, low-distortion power amplifier, and control methods thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jul 25, 2006·68 cites·2 claims
- 0295US5926466ATime division multiple access FDD wireless unit and time division multiple access FDD/TDD dual mode wireless unitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jul 20, 1999·113 cites·16 claims
- 0391US6326845B1Feedforward amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 4, 2001·63 cites·12 claims
- 0491US6201439B1Power splitter/ combiner circuit, high power amplifier and balun circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Mar 13, 2001·44 cites·2 claims
- 0589US6147571ADual-band multilayer bandpass filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Nov 14, 2000·71 cites·23 claims
- 0689US5852384ADual band oscillator circuit using strip line resonatorsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Dec 22, 1998·52 cites·13 claims
- 0788US6847258B2Power amplifier, power amplifying method and radio communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jan 25, 2005·52 cites·28 claims
- 0888US6803837B2Power splitter/combiner circuit, high power amplifier and balun circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Oct 12, 2004·18 cites·2 claims
- 0986US7496333B2Transmission circuit and communication apparatus employing the samePANASONIC CORP·Filed 2006·Granted Feb 24, 2009·14 cites·18 claims
- 1086US6081694AMobile telephone transmitter with internal auxiliary matching circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jun 27, 2000·61 cites·17 claims
- 1185US7869671B2Three-dimensional optical waveguide, method of manufacturing same, optical module, and optical transmission systemPANSONIC CORP·Filed 2009·Granted Jan 11, 2011·11 cites·9 claims
- 1285US6545542B2Power amplifier with coupler for cross-coupling amplifiers for reduction of differential frequency componentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 8, 2003·37 cites·24 claims
- 1385US5973557AHigh efficiency linear power amplifier of plural frequency bands and high efficiency power amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Oct 26, 1999·86 cites·23 claims
- 1484US6989713B2Predistortion circuit, low-distortion power amplifier, and control methods thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jan 24, 2006·9 cites·2 claims
- 1583US7437132B2Receiving device, semiconductor integrated circuit, transmitting/receiving device, transport apparatus portable transmitting/receiving device, communication system and receiving methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Oct 14, 2008·13 cites·45 claims
- 1682US6114911APower amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Sep 5, 2000·49 cites·25 claims
- 1782US5770970ATransmitter of wireless system and high frequency power amplifier used thereinMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Jun 23, 1998·45 cites·4 claims
- 1881US7979038B2PLL modulation circuit, radio transmission device, and radio communication devicePANASONIC CORP·Filed 2007·Granted Jul 12, 2011·9 cites·5 claims
- 1981US7454186B2Direct conversion receiving apparatus and celluar phonePANASONIC CORP·Filed 2005·Granted Nov 18, 2008·10 cites·15 claims
- 2079US7499692B2Receiving circuit, and receiving apparatus and transmitting/receiving apparatus using the receiving circuitPANASONIC CORP·Filed 2005·Granted Mar 3, 2009·8 cites·8 claims
- 2178US8599965B2Wireless communication apparatusKATO AKIRA·Filed 2010·Granted Dec 3, 2013·5 cites·10 claims
- 2278US7493091B2Transmission circuit and communication devicePANASONIC CORP·Filed 2006·Granted Feb 17, 2009·7 cites·25 claims
- 2375US6169461B1High-frequency oscillating circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jan 2, 2001·26 cites·28 claims
- 2473US6980831B2Radio communication base state system including optical advanced base stationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 27, 2005·18 cites·28 claims
- 2570US7587180B2FM modulatorPANASONIC CORP·Filed 2006·Granted Sep 8, 2009·4 cites·12 claims
- 2670US6329875B1Power amplifier, power control method for power amplifier, and communication equipmentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 11, 2001·17 cites·23 claims
- 2769US8223886B2Transmission circuit for bias control of power amplifierKITAMURA RYO·Filed 2009·Granted Jul 17, 2012·7 cites·3 claims
- 2869US6972621B2Power amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Dec 6, 2005·13 cites·7 claims
- 2969US6054900APower amplifier MMIC and mobile communication terminalMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Apr 25, 2000·40 cites·18 claims
- 3068US7541879B2System for compensation of VCO non-linearityPANASONIC CORP·Filed 2007·Granted Jun 2, 2009·6 cites·4 claims
- 3167US6720829B2Distortion-compensated amplifying circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 13, 2004·14 cites·31 claims
- 3267US6710652B2Feedforward amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Mar 23, 2004·15 cites·18 claims
- 3367US6563395B2Power splitter/combiner circuit, high power amplifier and balun circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 13, 2003·5 cites·4 claims
- 3466US8369802B2Polar modulation transmission apparatus and polar modulation transmission methodPANASONIC CORP·Filed 2009·Granted Feb 5, 2013·3 cites·9 claims
- 3565US7580605B2Three-dimensional optical waveguide, method of manufacturing same, optical module, and optical transmission systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Aug 25, 2009·2 cites·8 claims
- 3665US6590449B2Predistortion circuit, low-distortion power amplifier, and control methods thereforMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jul 8, 2003·8 cites·10 claims
- 3765US6130897ATime division multiple access FDD/TDD dual mode radio and a time division multiple access TDD dual band systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Oct 10, 2000·38 cites·8 claims
- 3863US6690249B2Power splitter/combiner multi-layer circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 10, 2004·4 cites·2 claims
- 3962US7957703B2Wireless circuit devicePANASONIC CORP·Filed 2006·Granted Jun 7, 2011·2 cites·20 claims
- 4061US7046972B2Predistortion linearizer and predistortion distortion compensation method, program, and mediumMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 16, 2006·11 cites·25 claims
- 4160US6300848B1Power splitter and power combiner using N-branch-line-shaped directional couplersMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Oct 9, 2001·14 cites·18 claims
- 4260US5901345ATransmitter of wireless system and high frequency power amplifier used thereinMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted May 4, 1999·16 cites·10 claims
- 4359US7848455B2Transmission circuit comprising multistage amplifier, and communication devicePANASONIC CORP·Filed 2008·Granted Dec 7, 2010·4 cites·9 claims
- 4459US7742541B2Transmission circuit, and communication apparatus using the samePANASONIC CORP·Filed 2007·Granted Jun 22, 2010·4 cites·22 claims
- 4559US6960959B2Power amplifier and communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 1, 2005·10 cites·14 claims
- 4658US7616702B2Transmission circuit and communication apparatus comprising the samePANASONIC CORP·Filed 2007·Granted Nov 10, 2009·1 cites·11 claims
- 4756US6933780B2Predistortion circuit and power amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 23, 2005·8 cites·19 claims
- 4856US6542021B2High frequency switch and communication apparatus with a high frequency voltage dividerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 1, 2003·7 cites·3 claims
- 4956US6507253B1Delay circuit and feedforward amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 14, 2003·6 cites·12 claims
- 5055US7109578B2Semiconductor device and electronic equipment using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 19, 2006·5 cites·6 claims
Showing the top 50 of 93 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →