Assignee
HITACHI MEDIA ELECTRON KK
JP·119 granted patents·26 pending applications·857 citations·filing 1996–2014
Top patents by PatentIndex Score
145 records- 0196US7554427B2Thin film bulk acoustic wave resonator and filter, and radio frequency module using themHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jun 30, 2009·49 cites·2 claims
- 0295US7489063B2Thin film piezoelectric bulk acoustic wave resonator and radio frequency filter using the sameHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Feb 10, 2009·43 cites·18 claims
- 0393US7986075B2Film bulk acoustic wave resonator, its fabrication method and film bulk acoustic wave resonator filter using the resonatorHITACHI MEDIA ELECTRON KK·Filed 2008·Granted Jul 26, 2011·29 cites·18 claims
- 0493US6714099B2Radio frequency filter, radio frequency circuit, antenna duplexer and radio terminalHITACHI MEDIA ELECTRON KK·Filed 2002·Granted Mar 30, 2004·74 cites·18 claims
- 0592US7242273B2RF-MEMS switch and its fabrication methodHITACHI MEDIA ELECTRON KK·Filed 2004·Granted Jul 10, 2007·49 cites·8 claims
- 0692US6525624B1Band-switchable surface acoustic wave antenna duplexer and mobile radio terminalHITACHI MEDIA ELECTRON KK·Filed 2000·Granted Feb 25, 2003·62 cites·14 claims
- 0791US6766149B1Mobile radio terminal and surface acoustic wave antenna duplexerHITACHI MEDIA ELECTRON KK·Filed 1999·Granted Jul 20, 2004·73 cites·7 claims
- 0890US7221242B2Bulk 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
- 0989US8947755B2Optical scanning device and image display apparatusHITACHI MEDIA ELECTRON KK·Filed 2013·Granted Feb 3, 2015·18 cites·8 claims
- 1088US8040780B2Optical pickup device and optical disc apparatusHITACHI MEDIA ELECTRON KK·Filed 2009·Granted Oct 18, 2011·7 cites·6 claims
- 1188US7561010B2Piezoelectric thin film resonatorsHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Jul 14, 2009·19 cites·8 claims
- 1288US7420891B2Optical pickup device having heat radiation means and optical disk apparatus using the sameHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Sep 2, 2008·10 cites·18 claims
- 1387US7873970B2Optical pickup device and optical disc drive apparatusHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jan 18, 2011·9 cites·11 claims
- 1487US7613080B2Optical pickup device and manufacturing method thereofHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Nov 3, 2009·8 cites·16 claims
- 1586US7706220B2Photodetector, diffraction grating, optical pickup and optical disc apparatusHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Apr 27, 2010·6 cites·11 claims
- 1686US7659795B2Antenna duplexer and wireless terminal using the sameHITACHI MEDIA ELECTRON KK·Filed 2008·Granted Feb 9, 2010·11 cites·1 claims
- 1786US7567495B2Optical pickup apparatus and optical disc apparatus using sameHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jul 28, 2009·5 cites·3 claims
- 1885US7499678B2Antenna sharing device and wireless communication terminal using the sameHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Mar 3, 2009·12 cites·19 claims
- 1984US7408287B2Film 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
- 2084US7385464B2Resonator type filterHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Jun 10, 2008·13 cites·8 claims
- 2183US7745975B2Piezoelectric thin film resonator, piezoelectric thin film resonator filter and manufacturing method thereofHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jun 29, 2010·12 cites·16 claims
- 2282US8031565B2Optical pickup and optical information reproduction systemHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Oct 4, 2011·5 cites·16 claims
- 2382US7739703B2Optical pickup device and optical disc driveHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Jun 15, 2010·6 cites·16 claims
- 2482US7697381B2Object lens drive unitHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Apr 13, 2010·5 cites·6 claims
- 2581US7675387B2Surface acoustic wave device and communication terminal using the sameHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Mar 9, 2010·11 cites·23 claims
- 2680US8737184B2Holographic optical pickup device, optical information recording and reproducing device, and method of recording and reproducing optical informationHITACHI MEDIA ELECTRON KK·Filed 2013·Granted May 27, 2014·5 cites·10 claims
- 2780US7948858B2Optical information processing apparatus, optical pick-up device and optical recording disc systemHITACHI MEDIA ELECTRON KK·Filed 2009·Granted May 24, 2011·4 cites·7 claims
- 2880US7933188B2Optical pickupHITACHI MEDIA ELECTRON KK·Filed 2008·Granted Apr 26, 2011·4 cites·10 claims
- 2980US7552455B2Objective lens with elastic support structureHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Jun 23, 2009·4 cites·6 claims
- 3080US7486452B2Optical pickup for use in optical disk device and method of manufacturing the sameHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Feb 3, 2009·10 cites·4 claims
- 3179US6034578ASurface acoustic wave device with closely spaced discharge electrodes electrically independent of the interdigital transducersHITACHI MEDIA ELECTRON KK·Filed 1999·Granted Mar 7, 2000·38 cites·4 claims
- 3278US7995450B2Optical element feeding device and optical pickup unit using the sameHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Aug 9, 2011·4 cites·18 claims
- 3378US5666091AStructure of surface acoustic wave filterHITACHI MEDIA ELECTRON KK·Filed 1996·Granted Sep 9, 1997·34 cites·17 claims
- 3477US7181751B2Objective-lens driving apparatus and optical disk apparatusHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Feb 20, 2007·2 cites·4 claims
- 3576US7502303B2Optical information processing apparatus, optical pick-up device and optical recording disc systemHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Mar 10, 2009·3 cites·13 claims
- 3676US7475412B2Optical disk drive apparatus having a flexible substrate and wiring conductorsHITACHI MEDIA ELECTRON KK·Filed 2006·Granted Jan 6, 2009·7 cites·14 claims
- 3776US7428192B2Optical pickup device and optical disk device using itHITACHI MEDIA ELECTRON KK·Filed 2004·Granted Sep 23, 2008·11 cites·4 claims
- 3875US7965594B2Optical pickup and optical disc apparatusHITACHI MEDIA ELECTRON KK·Filed 2010·Granted Jun 21, 2011·3 cites·8 claims
- 3974US7639588B2Optical disc drive apparatusHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Dec 29, 2009·2 cites·7 claims
- 4074US7397732B2Objective lens driving apparatus and optical disc apparatusHITACHI MEDIA ELECTRON KK·Filed 2005·Granted Jul 8, 2008·2 cites·4 claims
- 4174US7107602B2Objective-lens driving apparatus and optical disk apparatusHITACHI MEDIA ELECTRON KK·Filed 2003·Granted Sep 12, 2006·7 cites·17 claims
- 4273US7664005B2Optical pickup apparatusHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Feb 16, 2010·2 cites·18 claims
- 4372US7890967B2Optical pickup device with heat radiating structureHITACHI MEDIA ELECTRON KK·Filed 2007·Granted Feb 15, 2011·4 cites·4 claims
- 4472US7211934B2Electronic device and method of manufacturing the sameHITACHI MEDIA ELECTRON KK·Filed 2004·Granted May 1, 2007·18 cites·22 claims
- 4572US5814917ASurface acoustic wave equipmentHITACHI MEDIA ELECTRON KK·Filed 1996·Granted Sep 29, 1998·26 cites·12 claims
- 4671US7933174B2Optical pickup with support part having hole for being inserted with a projection part of a caseHITACHI MEDIA ELECTRON KK·Filed 2008·Granted Apr 26, 2011·2 cites·3 claims
- 4770US9247189B2Optical module and scan-type image projection display deviceHITACHI MEDIA ELECTRON KK·Filed 2013·Granted Jan 26, 2016·2 cites·12 claims
- 4869US8023367B2Objective lens actuator and disc drive employing the objective lens actuatorHITACHI MEDIA ELECTRON KK·Filed 2010·Granted Sep 20, 2011·2 cites·10 claims
- 4969US7796488B2Optical pickup apparatusHITACHI MEDIA ELECTRON KK·Filed 2008·Granted Sep 14, 2010·1 cites·16 claims
- 5068US9218786B2Image display deviceHITACHI MEDIA ELECTRON KK·Filed 2013·Granted Dec 22, 2015·2 cites·9 claims
Showing the top 50 of 145 patent records by PatentIndex Score.
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