Inventor
SAWADA YOICHI
JP36 patents
⚠️ This page may combine multiple inventors who share the name “SAWADA YOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MURATA MANUFACTURING CO
35 patentsUS6815868B2Nov 9, 2004
Surface acoustic wave apparatus and communication unit
MURATA MANUFACTURING CO21 citations92
US6744333B2Jun 1, 2004
Surface acoustic wave filter device with balanced and unbalanced terminals
MURATA MANUFACTURING CO39 citations92
US6720842B2Apr 13, 2004
Surface acoustic wave filter device having first through third surface acoustic wave filter elements
MURATA MANUFACTURING CO35 citations92
US10972593B1Apr 6, 2021
Radio frequency module and communication device
MURATA MANUFACTURING CO9 citations86
US7053733B2May 30, 2006
Surface acoustic wave apparatus
MURATA MANUFACTURING CO12 citations84
US6828878B2Dec 7, 2004
Surface acoustic wave device and communication apparatus utilizing a resonator with a dummy electrode
MURATA MANUFACTURING CO15 citations84
US6781478B2Aug 24, 2004
Longitudinally coupled resonator type surface acoustic wave filter and communication apparatus incorporating the same
MURATA MANUFACTURING CO15 citations84
US6731188B2May 4, 2004
Surface acoustic wave filter device with an unbalanced-to-balanced conversion function
MURATA MANUFACTURING CO14 citations84
US6710676B2Mar 23, 2004
Surface acoustic wave filter device
MURATA MANUFACTURING CO15 citations84
US6693501B2Feb 17, 2004
Surface acoustic wave apparatus using filters with overlapped propagation paths and communications unit
MURATA MANUFACTURING CO18 citations84
US11336312B2May 17, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO6 citations75
US6891451B2May 10, 2005
Surface acoustic wave filter apparatus having different structure reflectors
MURATA MANUFACTURING CO7 citations74
US11606108B2Mar 14, 2023
Radio frequency module and communication device
MURATA MANUFACTURING CO1 citations73
US11368172B2Jun 21, 2022
Radio-frequency module and communication device
MURATA MANUFACTURING CO3 citations73
US11349511B2May 31, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO3 citations73
US11336315B2May 17, 2022
Radio-frequency module and communication device
MURATA MANUFACTURING CO2 citations73
US11323142B2May 3, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO2 citations73
US11239868B2Feb 1, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO2 citations73
US11005505B2May 11, 2021
Radio-frequency module
MURATA MANUFACTURING CO2 citations73
US10979087B1Apr 13, 2021
Radio-frequency module and communication device
MURATA MANUFACTURING CO3 citations73
US7034639B2Apr 25, 2006
Longitudinally coupled resonator type surface acoustic wave filter and communication apparatus incorporating the same
MURATA MANUFACTURING CO6 citations73
US12317412B2May 27, 2025
High-frequency module and communication device
MURATA MANUFACTURING CO1 citations64
US6998760B2Feb 14, 2006
Surface acoustic wave device and communication device
MURATA MANUFACTURING CO2 citations63
US12046808B2Jul 23, 2024
Radio-frequency module and communication device
MURATA MANUFACTURING CO0 citations62
US11881878B2Jan 23, 2024
Radio frequency module and communication device
MURATA MANUFACTURING CO0 citations62
US11750228B2Sep 5, 2023
Radio-frequency module
MURATA MANUFACTURING CO0 citations62
US11621739B2Apr 4, 2023
Radio-frequency module and communications device
MURATA MANUFACTURING CO1 citations62
US11483016B2Oct 25, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO0 citations62
US11463116B2Oct 4, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO0 citations62
US11425235B2Aug 23, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO0 citations62
US11398843B2Jul 26, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO0 citations62
US11394817B2Jul 19, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO0 citations52
US11418225B2Aug 16, 2022
Radio frequency module and communication device
MURATA MANUFACTURING CO0 citations51
US12470235B2Nov 11, 2025
Radio-frequency module and communication apparatus
MURATA MANUFACTURING CO0 citations49
US10070513B2Sep 4, 2018
High-frequency module and communication apparatus
MURATA MANUFACTURING CO0 citations42