Inventor
TAKAMINE YUICHI
JP111 patents
Patents
50 patentsUS10644674B2May 5, 2020
Multiplexer, radio-frequency front-end circuit, and communication device
MURATA MANUFACTURING CO158 citations99
US6606016B2Aug 12, 2003
Surface acoustic wave device using two parallel connected filters with different passbands
MURATA MANUFACTURING CO85 citations98
US6771144B2Aug 3, 2004
Surface acoustic wave filter with a threefold mode filter section and a resonator
MURATA MANUFACTURING CO31 citations93
US6762657B2Jul 13, 2004
Longitudinally coupled resonator-type surface acoustic wave filter
MURATA MANUFACTURING CO28 citations93
US6713940B2Mar 30, 2004
Surface acoustic wave device
MURATA MANUFACTURING CO33 citations93
US6621380B2Sep 16, 2003
Longitudinally coupled resonator type surface acoustic wave filter having narrow electrode finger pitch sections
MURATA MANUFACTURING CO23 citations93
US6583691B2Jun 24, 2003
Longitudinally coupled resonator type surface acoustic wave filter with an IDT having a narrow pitch portion
MURATA MANUFACTURING CO40 citations93
US6556100B2Apr 29, 2003
Surface acoustic wave filter with a passband formed by a longitudinally coupled filter and a resonator inductance
MURATA MANUFACTURING CO34 citations93
US7295089B2Nov 13, 2007
Surface acoustic wave filter and communication apparatus
MURATA MANUFACTURING CO21 citations92
US6815868B2Nov 9, 2004
Surface acoustic wave apparatus and communication unit
MURATA MANUFACTURING CO21 citations92
US6781485B2Aug 24, 2004
Surface acoustic wave filter
MURATA MANUFACTURING CO21 citations92
US10193530B2Jan 29, 2019
Multiplexer, transmission device, reception device, high-frequency front end circuit, communication device and impedance matching method for multiplexer
MURATA MANUFACTURING CO14 citations86
US10778187B2Sep 15, 2020
Surface acoustic wave filter and multiplexer
MURATA MANUFACTURING CO9 citations84
US10530336B2Jan 7, 2020
Elastic wave filter, multiplexer, duplexer, high-frequency front end circuit, and communication device
MURATA MANUFACTURING CO7 citations84
US10476470B2Nov 12, 2019
Elastic wave filter device
MURATA MANUFACTURING CO11 citations84
US10171061B2Jan 1, 2019
Elastic wave device
MURATA MANUFACTURING CO10 citations84
US9019040B2Apr 28, 2015
Elastic wave branching filter
MURATA MANUFACTURING CO7 citations84
US7486159B2Feb 3, 2009
Surface acoustic wave device
MURATA MANUFACTURING CO17 citations84
US7479852B2Jan 20, 2009
Method for manufacturing surface acoustic wave device and surface acoustic wave device
MURATA MANUFACTURING CO14 citations84
US7190242B2Mar 13, 2007
Surface acoustic wave filter and communication unit
MURATA MANUFACTURING CO13 citations84
US7015776B2Mar 21, 2006
Saw filter and communication device utilizing a weighted reflector
MURATA MANUFACTURING CO14 citations84
US6985048B2Jan 10, 2006
Surface acoustic wave apparatus and communication apparatus
MURATA MANUFACTURING CO19 citations84
US6936952B2Aug 30, 2005
Surface acoustic wave device and communication device
MURATA MANUFACTURING CO18 citations84
US6900577B2May 31, 2005
Surface acoustic wave device and communication apparatus
MURATA MANUFACTURING CO17 citations84
US6879086B2Apr 12, 2005
Surface acoustic wave apparatus and communication apparatus using the same
MURATA MANUFACTURING CO16 citations84
US6828878B2Dec 7, 2004
Surface acoustic wave device and communication apparatus utilizing a resonator with a dummy electrode
MURATA MANUFACTURING CO15 citations84
US6816036B2Nov 9, 2004
Surface acoustic wave filter and communication apparatus
MURATA MANUFACTURING CO17 citations84
US6781478B2Aug 24, 2004
Longitudinally coupled resonator type surface acoustic wave filter and communication apparatus incorporating the same
MURATA MANUFACTURING CO15 citations84
US6768397B2Jul 27, 2004
Surface acoustic wave filter with balanced and unbalanced terminals
MURATA MANUFACTURING CO15 citations84
US6731188B2May 4, 2004
Surface acoustic wave filter device with an unbalanced-to-balanced conversion function
MURATA MANUFACTURING CO14 citations84
US6717489B2Apr 6, 2004
Longitudinally connected resonator type surface acoustic wave filter
MURATA MANUFACTURING CO13 citations84
US6710676B2Mar 23, 2004
Surface acoustic wave filter device
MURATA MANUFACTURING CO15 citations84
US6462632B1Oct 8, 2002
Composite saw filter with a saw filter and a withdrawal weighted or electrode reversed saw resonator
MURATA MANUFACTURING CO15 citations84
US10141913B2Nov 27, 2018
Multiplexer, transmission apparatus, and reception apparatus
MURATA MANUFACTURING CO8 citations83
US6882249B2Apr 19, 2005
Surface acoustic wave device
MURATA MANUFACTURING CO16 citations83
US7378923B2May 27, 2008
Balanced SAW filter
MURATA MANUFACTURING CO8 citations74
US7116189B2Oct 3, 2006
Surface acoustic wave device and communication apparatus including the same
MURATA MANUFACTURING CO10 citations74
US7042131B2May 9, 2006
Surface acoustic wave device
MURATA MANUFACTURING CO8 citations74
US6815870B2Nov 9, 2004
Surface acoustic wave device and communication device including same
MURATA MANUFACTURING CO7 citations74
US6756867B2Jun 29, 2004
Surface acoustic wave filter and communication apparatus
MURATA MANUFACTURING CO8 citations74
US6753641B2Jun 22, 2004
Surface acoustic wave device and communication device
MURATA MANUFACTURING CO7 citations74
US6700460B2Mar 2, 2004
Surface acoustic wave filter
MURATA MANUFACTURING CO8 citations74
US6597262B2Jul 22, 2003
Surface acoustic wave filter and communication apparatus incorporating the same
MURATA MANUFACTURING CO7 citations74
US6326864B1Dec 4, 2001
Surface acoustic wave filter, duplexer and communications device with specific series resonator multiple anti-resonant point placement
MURATA MANUFACTURING CO14 citations74
US11012052B2May 18, 2021
Surface acoustic wave filter
MURATA MANUFACTURING CO2 citations73
US10812050B2Oct 20, 2020
Multiplexer, radio-frequency (RF) front-end circuit, and communication apparatus
MURATA MANUFACTURING CO2 citations73
US10812043B2Oct 20, 2020
Acoustic wave filter device
MURATA MANUFACTURING CO4 citations73
US10742194B2Aug 11, 2020
Filter
MURATA MANUFACTURING CO2 citations73
US10651822B2May 12, 2020
Multiplexer
MURATA MANUFACTURING CO2 citations73
US10601570B2Mar 24, 2020
Multiplexer, radio-frequency front-end circuit, and communication apparatus
MURATA MANUFACTURING CO4 citations73
Showing the top 50 of 111 patents by PatentIndex Score.