Inventor
KURODA KATSUHITO
JP31 patents
Patents
31 patentsUS6549095B2Apr 15, 2003
Dielectric filter, dielectric duplexer, and communication apparatus
MURATA MANUFACTURING CO26 citations92
US6420942B1Jul 16, 2002
Dielectric filter, dielectric duplexer, and communication apparatus
MURATA MANUFACTURING CO28 citations92
US6351198B1Feb 26, 2002
Dielectric filter, duplexer, and communication apparatus
MURATA MANUFACTURING CO23 citations92
US7283016B2Oct 16, 2007
Balanced acoustic wave filter and acoustic wave filter
MURATA MANUFACTURING CO18 citations83
US6833773B1Dec 21, 2004
Dielectric filter, dielectric duplexer, and communication apparatus incorporating the same
MURATA MANUFACTURING CO9 citations74
US6498542B1Dec 24, 2002
Dielectric resonant device, dielectric filter, dielectric duplexer, communication apparatus including the same, and method for forming input-output electrode of the dielectric resonant device
MURATA MANUFACTURING CO12 citations74
US11063340B2Jul 13, 2021
Antenna module and communication device
MURATA MANUFACTURING CO2 citations73
US10424841B2Sep 24, 2019
Antenna matching circuit, antenna circuit, front-end circuit, and communication apparatus
MURATA MANUFACTURING CO6 citations73
US10333572B2Jun 25, 2019
Antenna tuner control circuit, front-end circuit and communication device
MURATA MANUFACTURING CO2 citations73
US10284165B2May 7, 2019
Variable phase shifter, variable phase shift circuit, RF front-end circuit, and communication apparatus
MURATA MANUFACTURING CO2 citations73
US10122086B2Nov 6, 2018
Antenna device and communication apparatus
MURATA MANUFACTURING CO2 citations73
US10056936B2Aug 21, 2018
Front end circuit and communication apparatus
MURATA MANUFACTURING CO2 citations69
US6741149B2May 25, 2004
Dielectric filter, dielectric duplexer, and communication apparatus
MURATA MANUFACTURING CO2 citations63
US6549093B2Apr 15, 2003
Dielectric filter, duplexer, and communication apparatus incorporating the same
MURATA MANUFACTURING CO3 citations63
US6545566B2Apr 8, 2003
Dielectric filter, dielectric duplexer, and communication device
MURATA MANUFACTURING CO3 citations63
US6525625B1Feb 25, 2003
Dielectric duplexer and communication apparatus
MURATA MANUFACTURING CO6 citations63
US6433651B1Aug 13, 2002
Dielectric filter, composite dielectric filter, duplexer, and communication apparatus having resonance-line holes with offset steps
MURATA MANUFACTURING CO6 citations63
US6362705B1Mar 26, 2002
Dielectric filter unit, duplexer, and communication apparatus
MURATA MANUFACTURING CO3 citations63
US6340921B1Jan 22, 2002
Dielectric filter, dielectric duplexer, and communication apparatus using the same
MURATA MANUFACTURING CO4 citations63
US11894593B2Feb 6, 2024
Filter device, and antenna module and communication device including the same
MURATA MANUFACTURING CO0 citations62
US7479848B2Jan 20, 2009
Acoustic wave filter device
MURATA MANUFACTURING CO6 citations62
US6580339B2Jun 17, 2003
Dielectric duplexer and communication apparatus
MURATA MANUFACTURING CO4 citations62
US8988170B2Mar 24, 2015
Elastic wave filter device and communication apparatus equipped with the same
MURATA MANUFACTURING CO3 citations60
US11362418B2Jun 14, 2022
Antenna module
MURATA MANUFACTURING CO0 citations52
USRE40465EAug 26, 2008
Dielectric filter, dielectric duplexer, and communication apparatus
MURATA MANUFACTURING CO0 citations52
US6822538B2Nov 23, 2004
Dielectric filter, dielectric duplexer, and communication apparatus incorporating the same
MURATA MANUFACTURING CO1 citations52
US10237785B2Mar 19, 2019
Frequency channel setting method and base station apparatus
MURATA MANUFACTURING CO0 citations42
US6642817B2Nov 4, 2003
Dielectric filter, dielectric duplexer, and communication device
MURATA MANUFACTURING CO0 citations42
US6580338B1Jun 17, 2003
Dielectric filter, dielectric duplexer, communication apparatus, and method of designing dielectric resonator apparatus
MURATA MANUFACTURING CO0 citations42
US6535082B2Mar 18, 2003
Dielectric filter, dielectric duplexer, and communication device using the same
MURATA MANUFACTURING CO0 citations42
US6734765B2May 11, 2004
Dielectric filter, dielectric duplexer, and communications equipment
MURATA MANUFACTURING CO0 citations41