Inventor · disambiguated record
Mitsutaka Hikita
Also filed as: HIKITA MITSUTAKA
32 granted patents·2 pending applications·1,111 citations·filing 1979–2008
98Inventor score
Files withHITACHI LTD17HITACHI MEDIA ELECTRON KK12HITACHI ELECTRONICS3HIKITA MITSUTAKA1HITACHI VIDEO ENG1
Top patents by PatentIndex Score
34 records- 0194US5202652ASurface acoustic wave filter device formed on a plurality of piezoelectric substratesHITACHI LTD·Filed 1990·Granted Apr 13, 1993·94 cites·12 claims
- 0293US6714099B2Radio frequency filter, radio frequency circuit, antenna duplexer and radio terminalHITACHI MEDIA ELECTRON KK·Filed 2002·Granted Mar 30, 2004·74 cites·18 claims
- 0392US6525624B1Band-switchable surface acoustic wave antenna duplexer and mobile radio terminalHITACHI MEDIA ELECTRON KK·Filed 2000·Granted Feb 25, 2003·62 cites·14 claims
- 0492US4468642ABand pass filter deviceHITACHI LTD·Filed 1982·Granted Aug 28, 1984·41 cites·12 claims
- 0591US6766149B1Mobile radio terminal and surface acoustic wave antenna duplexerHITACHI MEDIA ELECTRON KK·Filed 1999·Granted Jul 20, 2004·73 cites·7 claims
- 0690US7221242B2Bulk acoustic wave resonator and manufacturing method thereof, filter using the same, semiconductor integrated circuit device using the same, and high frequency module using the sameHITACHI MEDIA ELECTRON KK·Filed 2005·Granted May 22, 2007·22 cites·19 claims
- 0788US7561010B2Piezoelectric thin film resonatorsHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Jul 14, 2009·19 cites·8 claims
- 0888US4803449AFilter combining surface acoustic wave resonatorsHITACHI VIDEO ENG·Filed 1987·Granted Feb 7, 1989·56 cites·18 claims
- 0988US4492940AAcoustic surface-wave bandpass filterHITACHI LTD·Filed 1983·Granted Jan 8, 1985·31 cites·5 claims
- 1087US5438305AHigh frequency module including a flexible substrateHITACHI LTD·Filed 1992·Granted Aug 1, 1995·106 cites·21 claims
- 1187US4792939ADuplex radio communication transceiverHITACHI ELECTRONICS·Filed 1987·Granted Dec 20, 1988·92 cites·12 claims
- 1286US7659795B2Antenna duplexer and wireless terminal using the sameHITACHI MEDIA ELECTRON KK·Filed 2008·Granted Feb 9, 2010·11 cites·1 claims
- 1386US5115216ASurface acoustic wave filter including saw resonators with transmission spaces thereinHITACHI LTD·Filed 1989·Granted May 19, 1992·38 cites·30 claims
- 1485US7499678B2Antenna sharing device and wireless communication terminal using the sameHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Mar 3, 2009·12 cites·19 claims
- 1585US4906885AElectrode material for surface acoustic wave devices and surface acoustic wave device using the sameHITACHI ELECTRONICS·Filed 1988·Granted Mar 6, 1990·35 cites·7 claims
- 1684US7408287B2Film bulk acoustic wave resonator, film bulk acoustic wave resonator filter and method of manufacturing film bulk acoustic wave resonatorHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Aug 5, 2008·11 cites·6 claims
- 1784US7385464B2Resonator type filterHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Jun 10, 2008·13 cites·8 claims
- 1884US5010269ASAW resonator having a broad bandwidthHITACHI LTD·Filed 1988·Granted Apr 23, 1991·39 cites·13 claims
- 1981US6346761B1Surface acoustic wave device capable of suppressing spurious response due to non-harmonic higher-order modesHITACHI ELECTRONICS·Filed 2000·Granted Feb 12, 2002·22 cites·21 claims
- 2079US4263571ASurface acoustic wave filterHITACHI LTD·Filed 1979·Granted Apr 21, 1981·18 cites·4 claims
- 2178US5666091AStructure of surface acoustic wave filterHITACHI MEDIA ELECTRON KK·Filed 1996·Granted Sep 9, 1997·34 cites·17 claims
- 2276US5604059AMask structure having phase shifting pattern suitable for forming fine pattern on photosensitive film and method of manufacturing solid-state devices using such mask structureHITACHI LTD·Filed 1994·Granted Feb 18, 1997·34 cites·13 claims
- 2373US5422615AHigh frequency circuit deviceHITACHI LTD·Filed 1993·Granted Jun 6, 1995·51 cites·33 claims
- 2473US4734664ASurface acoustic wave resonatorHITACHI LTD·Filed 1986·Granted Mar 29, 1988·22 cites·6 claims
- 2572US5814917ASurface acoustic wave equipmentHITACHI MEDIA ELECTRON KK·Filed 1996·Granted Sep 29, 1998·26 cites·12 claims
- 2664US4490641AThree electrode piezoelectric ceramic resonatorHITACHI LTD·Filed 1981·Granted Dec 25, 1984·14 cites·16 claims
- 2757US5065065ASurface acoustic wave deviceHITACHI LTD·Filed 1990·Granted Nov 12, 1991·14 cites·40 claims
- 2857US4507581AElectrode structure for saw deviceHITACHI LTD·Filed 1983·Granted Mar 26, 1985·11 cites·17 claims
- 2956US4365220ASurface wave circuit deviceHITACHI LTD·Filed 1981·Granted Dec 21, 1982·10 cites·9 claims
- 3051US6047306ACDMA communication RF signal processing apparatus using SAWHITACHI LTD·Filed 1997·Granted Apr 4, 2000·19 cites·45 claims
- 3146US2007030095A1Antenna duplexer and wireless terminal using the sameHIKITA MITSUTAKA·Filed 2005·Application pending·0 cites
- 3239US5087901ASurface acoustic wave band-pass filter with different phase weighted transducersHITACHI LTD·Filed 1990·Granted Feb 11, 1992·6 cites·1 claims
- 3339US2005168102A1Film bulk acoustic wave resonator, film bulk acoustic wave resonator filter and method of manufacturing film bulk acoustic wave resonatorHITACHI MEDIA ELECTRON KK·Filed 2004·Application pending·0 cites
- 3430US5235234ASurface acoustic wave deviceHITACHI LTD·Filed 1991·Granted Aug 10, 1993·1 cites·26 claims
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