Inventor · disambiguated record
Hiroshi Nakatsuka
Also filed as: NAKATSUKA HIROSHI
76 granted patents·11 pending applications·1,282 citations·filing 1987–2022
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD32PANASONIC CORP19CASIO COMPUTER CO LTD8NAKATSUKA HIROSHI7MAZDA MOTOR4
Top patents by PatentIndex Score
87 records- 0197US6566821B2Drive device and drive method for a cold cathode fluorescent lampMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 20, 2003·174 cites·28 claims
- 0297US4934737APower tiltable steering wheelMAZDA MOTOR·Filed 1988·Granted Jun 19, 1990·101 cites·5 claims
- 0396US7675389B2Piezoelectric resonator, piezoelectric filter, and duplexer and communication device using the samePANASONIC CORP·Filed 2006·Granted Mar 9, 2010·45 cites·11 claims
- 0495US7414495B2Coupled FBAR filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Aug 19, 2008·44 cites·11 claims
- 0594US7259498B2Piezoelectric resonator, filter, and duplexerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Aug 21, 2007·60 cites·24 claims
- 0694US6447019B1Tube jointSMC KK·Filed 2000·Granted Sep 10, 2002·63 cites·19 claims
- 0793US7230511B2Thin film bulk acoustic resonator, method for producing the same, filter, composite electronic component device, and communication deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jun 12, 2007·60 cites·6 claims
- 0892US8710712B2Vibration power generator and vibration power generation device, and communication device and electronic equipment with vibration power generation devicePANASONIC CORP·Filed 2013·Granted Apr 29, 2014·8 cites·10 claims
- 0991US5195607AExhaust system for automotive engineMAZDA MOTOR·Filed 1990·Granted Mar 23, 1993·91 cites·76 claims
- 1089US8803401B2Vibration power generator, vibration power generating device, and electronic device and communication device that have the vibration power generating device installedNAKATSUKA HIROSHI·Filed 2010·Granted Aug 12, 2014·8 cites·19 claims
- 1188US8716916B2Vibration generator, vibration generation device, and electronic equipment and communication device provided with vibration generation deviceNAKATSUKA HIROSHI·Filed 2012·Granted May 6, 2014·7 cites·14 claims
- 1288US7479847B2Filter using piezoelectric resonatorPANASONIC CORP·Filed 2006·Granted Jan 20, 2009·17 cites·17 claims
- 1387US7986198B2Frequency-variable acoustic thin film resonator, filter and communication apparatus using the samePANASONIC CORP·Filed 2007·Granted Jul 26, 2011·17 cites·14 claims
- 1486US8933611B2Vibration power generator, vibration power generating device and communication device having vibration power generating device mounted thereonNAKATSUKA HIROSHI·Filed 2010·Granted Jan 13, 2015·6 cites·19 claims
- 1586US7893793B2Film bulk acoustic wave resonator and method for manufacturing the samePANASONIC CORP·Filed 2007·Granted Feb 22, 2011·16 cites·22 claims
- 1686US7623007B2Device including piezoelectric thin film and a support having a vertical cross-section with a curvaturePANASONIC CORP·Filed 2006·Granted Nov 24, 2009·15 cites·10 claims
- 1785US6720705B2Method of driving a piezoelectric transformer and power source apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Apr 13, 2004·35 cites·21 claims
- 1884US8306499B2High-frequency filterYAMAKAWA TAKEHIKO·Filed 2008·Granted Nov 6, 2012·9 cites·11 claims
- 1984US7235915B2Acoustic resonator device, filter device, manufacturing method for acoustic resonator device, and communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jun 26, 2007·26 cites·6 claims
- 2084USD306582SPortable television setCASIO COMPUTER CO LTD·Filed 1987·Granted Mar 13, 1990·21 cites·1 claims
- 2183US7554422B2Filter module using piezoelectric resonators, duplexer, communication device, and method for fabricating filter modulePANASONIC CORP·Filed 2005·Granted Jun 30, 2009·14 cites·11 claims
- 2282US6794796B2Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Sep 21, 2004·22 cites·23 claims
- 2381US8288917B2Silicon oxide electret electrode with laminate insulating film surrounding short conductive filmNAKATSUKA HIROSHI·Filed 2009·Granted Oct 16, 2012·10 cites·20 claims
- 2480US7301420B2Piezoelectric resonator filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Nov 27, 2007·20 cites·18 claims
- 2580US6433458B2Method and unit for driving piezoelectric transformer used for controlling luminance of cold-cathode tubeMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Aug 13, 2002·24 cites·8 claims
- 2680US4932493AIgnition switch, brake and gearshift interlocks for a vehicle automatic transmissionMAZDA MOTOR·Filed 1989·Granted Jun 12, 1990·38 cites·8 claims
- 2779US8289103B2Filter device having attenuation polesYAMAKAWA TAKEHIKO·Filed 2007·Granted Oct 16, 2012·11 cites·15 claims
- 2879US7145281B2Driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panelMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Dec 5, 2006·6 cites·5 claims
- 2979US7034800B2Driving circuit and driving method for piezoelectric transformer, backlight apparatus, liquid crystal display apparatus, liquid crystal monitor, and liquid crystal TVMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Apr 25, 2006·20 cites·82 claims
- 3078US7224105B2Piezoelectric element, composite piezoelectric element, and filter, duplexer and communication equipment using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted May 29, 2007·18 cites·17 claims
- 3176US10534013B2SensorPANASONIC IP MAN CO LTD·Filed 2016·Granted Jan 14, 2020·2 cites·20 claims
- 3276US8049581B2Piezoelectric filter and method for manufacturing the samePANASONIC CORP·Filed 2008·Granted Nov 1, 2011·8 cites·13 claims
- 3375US7408429B2Coupled FBAR filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Aug 5, 2008·8 cites·20 claims
- 3475US6583534B1Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jun 24, 2003·14 cites·3 claims
- 3574US6737816B2Piezoelectric transformer, piezoelectric transformer drive circuit, piezoelectric transformer drive method and cold cathode tube drive apparatus using piezoelectric transformerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted May 18, 2004·14 cites·2 claims
- 3673US7701117B2Acoustic resonator and filterPANASONIC CORP·Filed 2006·Granted Apr 20, 2010·7 cites·6 claims
- 3771US7113055B2Piezoelectric resonator, method of manufacturing piezoelectric resonator, and filter, duplexer, and communication device using piezoelectric resonatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Sep 26, 2006·11 cites·11 claims
- 3869US6812623B2Piezoelectric transformerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 2, 2004·11 cites·6 claims
- 3967US7417360B2Piezoelectric resonator and method for producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Aug 26, 2008·5 cites·10 claims
- 4066US8022794B2Micromachine switch, filter circuit, duplexer circuit, and communication devicePANASONIC CORP·Filed 2007·Granted Sep 20, 2011·4 cites·12 claims
- 4166US7138888B2Filter using piezoelectric resonatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Nov 21, 2006·10 cites·13 claims
- 4266US7012578B2Light emission control device, backlight device, liquid crystal display apparatus, liquid crystal monitor and liquid crystal televisionMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Mar 14, 2006·10 cites·33 claims
- 4365US8564170B2Vibration power generator, vibration power generation apparatus, and electric device and communication device with vibration power generation apparatus mounted thereonTAKEUCHI HIROKI·Filed 2012·Granted Oct 22, 2013·2 cites·11 claims
- 4461US8653717B2Vibration power generator, vibration power generating device, and electronic device and communication device having vibration power generating device mounted thereonNAKATSUKA HIROSHI·Filed 2010·Granted Feb 18, 2014·1 cites·18 claims
- 4560US7639103B2Piezoelectric filter, antenna duplexer, and communications apparatus employing piezoelectric resonatorPANASONIC CORP·Filed 2007·Granted Dec 29, 2009·3 cites·6 claims
- 4660USD306439SPortable television setCASIO COMPUTER CO LTD·Filed 1987·Granted Mar 6, 1990·8 cites·1 claims
- 4759US7202592B2Piezoelectric transformer, power supply circuit and lighting unit using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Apr 10, 2007·7 cites·13 claims
- 4859US7038354B2Driving circuit for piezoelectric transformer, cold-cathode tube light-emitting apparatus, liquid crystal panel and device with built-in liquid crystal panelMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted May 2, 2006·6 cites·12 claims
- 4958US8115577B2Electromechanical switch, filter using the same, and communication apparatusNAKATSUKA HIROSHI·Filed 2008·Granted Feb 14, 2012·2 cites·16 claims
- 5058US7446455B2Thin film elastic wave resonatorMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Nov 4, 2008·3 cites·23 claims
Showing the top 50 of 87 patent records by PatentIndex Score.
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