Inventor
UMEDA KEIICHI
JP38 patents
⚠️ This page may combine multiple inventors who share the name “UMEDA KEIICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MURATA MANUFACTURING CO
34 patentsUS7868519B2Jan 11, 2011
Piezoelectric resonator including an acoustic reflector portion
MURATA MANUFACTURING CO253 citations99
US7649304B2Jan 19, 2010
Piezoelectric resonator and piezoelectric filter
MURATA MANUFACTURING CO41 citations92
US7535154B2May 19, 2009
Piezoelectric thin-film resonator
MURATA MANUFACTURING CO28 citations92
US7276836B2Oct 2, 2007
Piezoelectric thin-film resonator and process for producing same
MURATA MANUFACTURING CO21 citations92
US9461616B2Oct 4, 2016
Bulk wave resonator having an aluminum nitride film containing scandium and ScAlN protective layer
MURATA MANUFACTURING CO7 citations84
US9246079B2Jan 26, 2016
Piezoelectric thin-film resonator and method for producing piezoelectric thin film
MURATA MANUFACTURING CO15 citations84
US7924120B2Apr 12, 2011
Piezoelectric resonator and piezoelectric filter having a heat-radiating film
MURATA MANUFACTURING CO8 citations84
US9893270B2Feb 13, 2018
Method for manufacturing piezoelectric bulk acoustic wave element and piezoelectric bulk acoustic wave element
MURATA MANUFACTURING CO8 citations82
US10224896B2Mar 5, 2019
Piezoelectric vibrator and piezoelectric vibration device
MURATA MANUFACTURING CO2 citations73
US9831416B2Nov 28, 2017
Piezoelectric member that achieves high sound speed, acoustic wave apparatus, and piezoelectric member manufacturing method
MURATA MANUFACTURING CO2 citations73
US7180390B2Feb 20, 2007
Electronic component and method for manufacturing the same
MURATA MANUFACTURING CO8 citations73
US9905748B2Feb 27, 2018
Vibrating device
MURATA MANUFACTURING CO4 citations72
US9584093B2Feb 28, 2017
Vibrating device
MURATA MANUFACTURING CO4 citations72
US9553561B2Jan 24, 2017
Vibrating device and manufacturing method therfor
MURATA MANUFACTURING CO4 citations72
US10397708B2Aug 27, 2019
Piezoelectric element, piezoelectric microphone, piezoelectric resonator and method for manufacturing piezoelectric element
MURATA MANUFACTURING CO2 citations71
US10374569B2Aug 6, 2019
Resonance device and manufacturing method therefor
MURATA MANUFACTURING CO5 citations71
US10312427B2Jun 4, 2019
Piezoelectric device
MURATA MANUFACTURING CO2 citations71
US7504910B2Mar 17, 2009
Thin-film piezoelectric resonator utilizing a second or higher harmonic mode
MURATA MANUFACTURING CO5 citations63
US10965270B2Mar 30, 2021
Piezoelectric thin film and piezoelectric vibrator
MURATA MANUFACTURING CO0 citations62
US10291202B2May 14, 2019
Vibration device and manufacturing method of the same
MURATA MANUFACTURING CO1 citations62
US11629046B2Apr 18, 2023
MEMS device
MURATA MANUFACTURING CO0 citations60
US11451211B2Sep 20, 2022
Gallium nitride structure, piezoelectric element, method of manufacturing piezoelectric element, and resonator using piezoelectric element
MURATA MANUFACTURING CO0 citations60
US11012787B2May 18, 2021
Piezoelectric element, piezoelectric microphone, piezoelectric resonator and method for manufacturing piezoelectric element
MURATA MANUFACTURING CO0 citations60
US10608164B2Mar 31, 2020
Piezoelectric thin film, manufacturing method therefor, and piezoelectric element
MURATA MANUFACTURING CO1 citations60
US10998857B2May 4, 2021
Resonance device
MURATA MANUFACTURING CO1 citations59
US10727807B2Jul 28, 2020
Resonator manufacturing method
MURATA MANUFACTURING CO0 citations52
US10069473B2Sep 4, 2018
Piezoelectric resonator and method for manufacturing the same
MURATA MANUFACTURING CO0 citations52
US9948274B2Apr 17, 2018
Surface acoustic wave device
MURATA MANUFACTURING CO0 citations52
US9368247B2Jun 14, 2016
Thin film device and method for manufacturing thin film device
MURATA MANUFACTURING CO1 citations52
US9866199B2Jan 9, 2018
Vibrating device
MURATA MANUFACTURING CO1 citations51
US10475984B2Nov 12, 2019
Aluminum nitride piezoelectric thin film, piezoelectric material, piezoelectric component, and method for manufacturing aluminum nitride piezoelectric thin film
MURATA MANUFACTURING CO0 citations50
US9972769B2May 15, 2018
Piezoelectric thin film and method for manufacturing the same, and piezoelectric element
MURATA MANUFACTURING CO0 citations50
US11909375B2Feb 20, 2024
Resonance device
MURATA MANUFACTURING CO0 citations49
US7414497B2Aug 19, 2008
Piezoelectric thin-film filter
MURATA MANUFACTURING CO0 citations42