Inventor · disambiguated record
Keiji Onishi
Also filed as: ONISHI KEIJI
88 granted patents·14 pending applications·3,268 citations·filing 1990–2015
99Inventor score
Files withMATSUSHITA ELECTRIC INDUSTRIAL CO LTD53PANASONIC CORP23NAKATSUKA HIROSHI7YAMAKAWA TAKEHIKO6ONISHI KEIJI3
Top patents by PatentIndex Score
102 records- 0199US5446330ASurface acoustic wave device having a lamination structureMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Aug 29, 1995·284 cites·42 claims
- 0298US5459368ASurface acoustic wave device mounted moduleMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Oct 17, 1995·364 cites·13 claims
- 0397US7446629B2Antenna duplexer, and RF module and communication apparatus using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Nov 4, 2008·57 cites·23 claims
- 0497US7170215B2Electronic component and method for manufacturing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Jan 30, 2007·114 cites·15 claims
- 0596US7675389B2Piezoelectric resonator, piezoelectric filter, and duplexer and communication device using the samePANASONIC CORP·Filed 2006·Granted Mar 9, 2010·45 cites·11 claims
- 0696US7134198B2Method for manufacturing electric element built-in module with sealed electric elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Nov 14, 2006·113 cites·22 claims
- 0796US5920142AElectronic part and a method of production thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Jul 6, 1999·206 cites·48 claims
- 0895US7414495B2Coupled FBAR filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2006·Granted Aug 19, 2008·44 cites·11 claims
- 0995US5998907ASurface acoustic wave devices and their manufacturing methodMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Dec 7, 1999·102 cites·11 claims
- 1095US5085926ANeat reflecting glass with multilayer coatingCENTRAL GLASS CO LTD·Filed 1990·Granted Feb 4, 1992·153 cites·10 claims
- 1194US7259498B2Piezoelectric resonator, filter, and duplexerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Aug 21, 2007·60 cites·24 claims
- 1294US6798121B2Module with built-in electronic elements and method of manufacture thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Sep 28, 2004·80 cites·15 claims
- 1393US7230511B2Thin 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
- 1493US5729186AResonator ladder surface acoustic wave filter suppressing spurious signalsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Mar 17, 1998·87 cites·20 claims
- 1592US8710712B2Vibration 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
- 1692US5699027ASurface acoustic wave devices having a guard layerMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Dec 16, 1997·184 cites·15 claims
- 1791US6426583B1Surface acoustic wave element, method for producing the same and surface acoustic wave device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2000·Granted Jul 30, 2002·44 cites·14 claims
- 1890US8742872B2MEMS element, and manufacturing method of MEMS elementIWASAKI TOMOHIRO·Filed 2011·Granted Jun 3, 2014·13 cites·15 claims
- 1990US6969945B2Surface acoustic wave device, method for manufacturing, and electronic circuit deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Nov 29, 2005·44 cites·23 claims
- 2090US5892418ABalanced type surface acoustic wave deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1997·Granted Apr 6, 1999·52 cites·107 claims
- 2190US5506552ASurface acoustic wave filter with multiple ground terminalsMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1994·Granted Apr 9, 1996·55 cites·6 claims
- 2289US9233693B2Tire sensing systemPANASONIC CORP·Filed 2014·Granted Jan 12, 2016·5 cites·13 claims
- 2389US8803401B2Vibration 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
- 2489US7084718B2Band elimination filter, filter device, antenna duplexer and communication apparatusMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2003·Granted Aug 1, 2006·39 cites·37 claims
- 2589US6710682B2Surface acoustic wave device, method for producing the same, and circuit module using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2001·Granted Mar 23, 2004·43 cites·33 claims
- 2689US6154940AElectronic part and a method of production thereofMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Dec 5, 2000·93 cites·62 claims
- 2789US5991989AMethod of manufacture of surface acoustic wave deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1998·Granted Nov 30, 1999·91 cites·6 claims
- 2888US8716916B2Vibration 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
- 2988US7701311B2Antenna duplexer, and RF module and communication apparatus using the samePANASONIC CORP·Filed 2008·Granted Apr 20, 2010·14 cites·7 claims
- 3088US7479847B2Filter using piezoelectric resonatorPANASONIC CORP·Filed 2006·Granted Jan 20, 2009·17 cites·17 claims
- 3187US7986198B2Frequency-variable acoustic thin film resonator, filter and communication apparatus using the samePANASONIC CORP·Filed 2007·Granted Jul 26, 2011·17 cites·14 claims
- 3287US7246421B2Method for manufacturing surface acoustic wave deviceMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jul 24, 2007·10 cites·13 claims
- 3387US5821665ASurface acoustic wave device and method of manufactureMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Oct 13, 1998·79 cites·13 claims
- 3486US8933611B2Vibration 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
- 3586US8570112B2Oscillator with MEMS resonatorYAMAKAWA TAKEHIKO·Filed 2012·Granted Oct 29, 2013·8 cites·10 claims
- 3686US7893793B2Film bulk acoustic wave resonator and method for manufacturing the samePANASONIC CORP·Filed 2007·Granted Feb 22, 2011·16 cites·22 claims
- 3786US7623007B2Device 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
- 3885US6750737B2High frequency switch and radio communication apparatus with layered body for saw filter mountingMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Jun 15, 2004·35 cites·11 claims
- 3985US5453652ASurface acoustic wave device with interdigital transducers formed on a holding substrate thereof and a method of producing the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1993·Granted Sep 26, 1995·40 cites·16 claims
- 4084US8306499B2High-frequency filterYAMAKAWA TAKEHIKO·Filed 2008·Granted Nov 6, 2012·9 cites·11 claims
- 4184US7235915B2Acoustic 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
- 4284US6236141B1Surface acoustic wave elementMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1999·Granted May 22, 2001·46 cites·10 claims
- 4383US5592135ASurface acoustic wave filter with different filter portions satisfying complex conjugate relationship of impedancesMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1995·Granted Jan 7, 1997·44 cites·5 claims
- 4481US8288917B2Silicon oxide electret electrode with laminate insulating film surrounding short conductive filmNAKATSUKA HIROSHI·Filed 2009·Granted Oct 16, 2012·10 cites·20 claims
- 4581US7075391B2Surface acoustic wave filter element, surface acoustic wave filter and communication device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2005·Granted Jul 11, 2006·9 cites·2 claims
- 4681US5847626ABalanced-type surface acoustic wave lattice filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 1996·Granted Dec 8, 1998·39 cites·7 claims
- 4780US7301420B2Piezoelectric resonator filterMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2004·Granted Nov 27, 2007·20 cites·18 claims
- 4880US6930570B2Surface acoustic wave filter element, surface acoustic wave filter and communication device using the sameMATSUSHITA ELECTRIC INDUSTRIAL CO LTD·Filed 2002·Granted Aug 16, 2005·16 cites·14 claims
- 4979US8289103B2Filter device having attenuation polesYAMAKAWA TAKEHIKO·Filed 2007·Granted Oct 16, 2012·11 cites·15 claims
- 5078US7224105B2Piezoelectric 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
Showing the top 50 of 102 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →