Inventor · disambiguated record
Hiroaki Kosugi
Also filed as: KOSUGI HIROAKI
57 granted patents·2 pending applications·1,969 citations·filing 1985–2019
99Inventor score
Top patents by PatentIndex Score
59 records- 0195US5926466ATime 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
- 0294US6717998B2Frequency synthesizer apparatus equipped with fraction part control circuit, communication apparatus, frequency modulator apparatus, and frequency modulating methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Apr 6, 2004·53 cites·14 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
- 0589US5852384ADual band oscillator circuit using strip line resonatorsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Dec 22, 1998·52 cites·13 claims
- 0689US5369789ABurst signal transmitterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Nov 29, 1994·169 cites·9 claims
- 0788US7110486B2Frequency synthesizer apparatus equipped with fraction part control circuit, communication apparatus, frequency modulator apparatus, and frequency modulating methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Sep 19, 2006·14 cites·1 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
- 0986US6081694AMobile telephone transmitter with internal auxiliary matching circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jun 27, 2000·61 cites·17 claims
- 1086US4700194ASmall antennaMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1985·Granted Oct 13, 1987·63 cites·16 claims
- 1185US5973557AHigh 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
- 1284US7050525B2Frequency synthesizer apparatus equipped with fraction part control circuit, communication apparatus, frequency modulator apparatus, and frequency modulating methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted May 23, 2006·25 cites·1 claims
- 1384US6175746B1Multiband mobile unit communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jan 16, 2001·86 cites·9 claims
- 1484US5966666AMultiple-band mobile transceiver having a smaller number of local oscillatorsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Oct 12, 1999·84 cites·5 claims
- 1583US5442812AAntenna switching apparatus for selectively connecting antenna to transmitter or receiverMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Aug 15, 1995·39 cites·25 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
- 1882US5559474AFrequency synthesizer with controllable loop filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Sep 24, 1996·52 cites·23 claims
- 1979US5594394AAntenna diversity switching device with switching circuits between the receiver terminal and each antennaMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Jan 14, 1997·56 cites·37 claims
- 2078US5852784AMultiband mobile unit communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Dec 22, 1998·57 cites·12 claims
- 2178US5815036AApparatus and method for controlling feedforward amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Sep 29, 1998·45 cites·15 claims
- 2277US7038557B2Antenna duplexer and mobile communication device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 2, 2006·18 cites·30 claims
- 2376US10704679B2Hydraulic control deviceSUBARU CORP·Filed 2018·Granted Jul 7, 2020·2 cites·8 claims
- 2476US6825811B2Display-antenna integral structure and communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 30, 2004·26 cites·23 claims
- 2575US6169461B1High-frequency oscillating circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jan 2, 2001·26 cites·28 claims
- 2675US5691668AFeedforward amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Nov 25, 1997·42 cites·7 claims
- 2772US5272452APLL frequency synthesizer with variable bandwidth loop filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Dec 21, 1993·33 cites·13 claims
- 2870US6441692B1PLL frequency synthesizerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Aug 27, 2002·33 cites·16 claims
- 2970US6329875B1Power amplifier, power control method for power amplifier, and communication equipmentMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 11, 2001·17 cites·23 claims
- 3070US6269253B1Multi-mode wireless communication systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Jul 31, 2001·44 cites·13 claims
- 3170US5694089AFast frequency switching synthesizerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Dec 2, 1997·32 cites·16 claims
- 3269US6054900APower amplifier MMIC and mobile communication terminalMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Apr 25, 2000·40 cites·18 claims
- 3369US5371477ALinear amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Dec 6, 1994·24 cites·6 claims
- 3467US6563395B2Power splitter/combiner circuit, high power amplifier and balun circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 13, 2003·5 cites·4 claims
- 3565US6130897ATime 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
- 3663US11268621B2Hydraulic control apparatusNIDEC TOSOK CORP·Filed 2019·Granted Mar 8, 2022·1 cites·11 claims
- 3763US6690249B2Power splitter/combiner multi-layer circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Feb 10, 2004·4 cites·2 claims
- 3860US6300848B1Power 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
- 3960US5901345ATransmitter of wireless system and high frequency power amplifier used thereinMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted May 4, 1999·16 cites·10 claims
- 4060US5095542AApparatus for controlling transmission output level for burst signalMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1990·Granted Mar 10, 1992·19 cites·6 claims
- 4159US5274388AAntenna deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Dec 28, 1993·27 cites·3 claims
- 4259US2008152778A1Method of producing a beverage, a beverage, and a device for producing a beverageKOSUGI HIROAKI·Filed 2006·Application pending·0 cites
- 4357US5987309ATransceiver circuits for TDMA system with variable frequency second local oscillatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Nov 16, 1999·19 cites·13 claims
- 4456US6094564AMobile communication apparatus operable in different formats and pairing I-F band pass filter type with I-F amplifier characteristicsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jul 25, 2000·22 cites·6 claims
- 4556US5872487AFast frequency switching synthesizerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Feb 16, 1999·20 cites·7 claims
- 4656US5319804ATransmitter with nonlinearity correction circuitsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Jun 7, 1994·19 cites·17 claims
- 4755US6006080AReceiving mixer circuit for mobile radio transceiver designed to operate with multiple modulation modes and multiple frequency bandsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Dec 21, 1999·23 cites·25 claims
- 4854US5276921ATransmitter with nonlinearity correction circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1991·Granted Jan 4, 1994·12 cites·16 claims
- 4951US6037837AFeed forward amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted Mar 14, 2000·13 cites·20 claims
- 5050US6459915B2External adapter for a portable cellular phoneMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Oct 1, 2002·18 cites·19 claims
Showing the top 50 of 59 patent records by PatentIndex Score.
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