Inventor · disambiguated record
Hisashi Adachi
Also filed as: ADACHI HISASHI
77 granted patents·7 pending applications·1,386 citations·filing 1992–2015
99Inventor score
Top patents by PatentIndex Score
84 records- 0197US6563387B2Method and apparatus for synthesizing high-frequency signals for wireless communicationsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 13, 2003·97 cites·22 claims
- 0296US6927664B2Mutual induction circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Aug 9, 2005·66 cites·23 claims
- 0394US6717998B2Frequency 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
- 0492US7215215B2Phase modulation apparatus, polar modulation transmission apparatus, wireless transmission apparatus and wireless communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted May 8, 2007·26 cites·9 claims
- 0592US7013090B2Transmitting circuit apparatus and methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Mar 14, 2006·91 cites·18 claims
- 0691US6639471B2Power amplifier circuit, control method for power amplifier circuit, and portable terminal apparatus for mobile communicationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Oct 28, 2003·54 cites·12 claims
- 0790US6643470B1FM signal converter, FM signal optical transmitter and FM signal optical receiverMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Nov 4, 2003·31 cites·14 claims
- 0889US7973609B2Digitally-controlled oscillator, frequency synthesizer and radio communication devicePANASONIC CORP·Filed 2009·Granted Jul 5, 2011·22 cites·28 claims
- 0988US7230996B2Transmitting circuit device and wireless communications deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jun 12, 2007·37 cites·22 claims
- 1088US7110486B2Frequency 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
- 1186US7634022B2Polar modulator and wireless communication apparatus using the samePANASONIC CORP·Filed 2006·Granted Dec 15, 2009·14 cites·31 claims
- 1286US7573949B2Transmitter circuit, transmission method, and communications device using the transmitter circuitPANASONIC CORP·Filed 2006·Granted Aug 11, 2009·14 cites·19 claims
- 1385US7944994B2Data converter and data conversion method, and transmitter circuit, communications device and electronic device using the samePANASONIC CORP·Filed 2005·Granted May 17, 2011·16 cites·17 claims
- 1485US7075383B2Frequency modulator, frequency modulating method, and wireless circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 11, 2006·25 cites·10 claims
- 1584US7109793B2High frequency differential circuit, differential amplifier, differential mixer, differential oscillator, and radio circuit using sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 19, 2006·32 cites·27 claims
- 1684US7050525B2Frequency 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
- 1783US7321271B2Voltage-controlled oscillator, radio communication apparatus and voltage-controlled oscillation method for reducing degradation of phase noise characteristicMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jan 22, 2008·26 cites·6 claims
- 1882US5559474AFrequency synthesizer with controllable loop filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Sep 24, 1996·52 cites·23 claims
- 1980US7378918B2Two-point modulation type phase modulation apparatus, polar modulation transmission apparatus, wireless transmission apparatus and wireless communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted May 27, 2008·8 cites·12 claims
- 2079US7688156B2Polar modulation transmission circuit and communication devicePANASONIC CORP·Filed 2006·Granted Mar 30, 2010·8 cites·13 claims
- 2179US7245890B2High frequency variable gain amplification device, control device, high frequency variable gain frequency-conversion device, and communication deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jul 17, 2007·19 cites·15 claims
- 2278US7499502B2Amplifier, information communication apparatus and amplification methodPANASONIC CORP·Filed 2006·Granted Mar 3, 2009·10 cites·8 claims
- 2378US7493091B2Transmission circuit and communication devicePANASONIC CORP·Filed 2006·Granted Feb 17, 2009·7 cites·25 claims
- 2478US7383027B2Transmission circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jun 3, 2008·6 cites·48 claims
- 2578US7245883B2Radio communication apparatus, radio communication method, antenna apparatus and first duplexerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Jul 17, 2007·15 cites·14 claims
- 2678US6990155B2Wireless quadrature modulator transmitter using E/O and O/E connectivesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Jan 24, 2006·23 cites·6 claims
- 2778US6784817B2Data generating method, data generator, and transmitter using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 31, 2004·25 cites·25 claims
- 2878US6229399B1Multiple frequency band synthesizer using a single voltage control oscillatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted May 8, 2001·52 cites·10 claims
- 2978US5815036AApparatus and method for controlling feedforward amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Sep 29, 1998·45 cites·15 claims
- 3077US7777663B2Discrete time amplifier circuit and analong-digital converterPANASONIC CORP·Filed 2008·Granted Aug 17, 2010·10 cites·14 claims
- 3177US7696830B2Digital controlled oscillator, frequency synthesizer, radio communication apparatus using the same, and control method for the samePANASONIC CORP·Filed 2008·Granted Apr 13, 2010·8 cites·24 claims
- 3277US7466257B2Delta-sigma AD converterPANASONIC CORP·Filed 2007·Granted Dec 16, 2008·11 cites·9 claims
- 3377US7038557B2Antenna duplexer and mobile communication device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 2, 2006·18 cites·30 claims
- 3476US7170358B2Voltage controlled oscillator, and PLL circuit and wireless communication apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jan 30, 2007·8 cites·25 claims
- 3575US6826418B2Radio circuit and control method of radio circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Nov 30, 2004·15 cites·18 claims
- 3675US5691668AFeedforward amplifierMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Nov 25, 1997·42 cites·7 claims
- 3774US7855588B2Clock signal generation apparatusPANASONIC CORP·Filed 2009·Granted Dec 21, 2010·7 cites·18 claims
- 3874US7725082B2Radio communication apparatus, radio communication method, antenna apparatus and first duplexerPANASONIC CORP·Filed 2007·Granted May 25, 2010·4 cites·14 claims
- 3974US7251462B2Modulation circuit device, modulation method and radio communication deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jul 31, 2007·17 cites·21 claims
- 4074US7199652B2Amplifier; and transmitter and communication device incorporating the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Apr 3, 2007·19 cites·18 claims
- 4173US6980831B2Radio communication base state system including optical advanced base stationMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Dec 27, 2005·18 cites·28 claims
- 4272US6658216B1Voltage controlled oscillator, FM signal optical transmitter, FM signal optical receiver and FM signal optical transmission systemMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Dec 2, 2003·11 cites·7 claims
- 4372US5272452APLL frequency synthesizer with variable bandwidth loop filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1992·Granted Dec 21, 1993·33 cites·13 claims
- 4470US7619550B2Delta-sigma AD converter apparatus using delta-sigma modulator circuit provided with reset circuit resetting integratorPANASONIC CORP·Filed 2008·Granted Nov 17, 2009·7 cites·12 claims
- 4570US6441692B1PLL frequency synthesizerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Aug 27, 2002·33 cites·16 claims
- 4670US5694089AFast frequency switching synthesizerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Dec 2, 1997·32 cites·16 claims
- 4769US7224238B2Frequency modulator, frequency modulating method, and wireless circuitMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted May 29, 2007·5 cites·12 claims
- 4866US7855668B2Delta sigma A/D modulatorPANASONIC CORP·Filed 2009·Granted Dec 21, 2010·6 cites·12 claims
- 4963US6728526B2Fractional-N frequency synthesizer with multiple clocks having different timingsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 27, 2004·13 cites·19 claims
- 5062US7515080B2A/D converterPANASONIC CORP·Filed 2007·Granted Apr 7, 2009·5 cites·24 claims
Showing the top 50 of 84 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →