Inventor
KAWASAKI KOICHIRO
JP39 patents
⚠️ This page may combine multiple inventors who share the name “KAWASAKI KOICHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MURATA MANUFACTURING CO
38 patentsUS10063213B2Aug 28, 2018
Filter device and duplexer
MURATA MANUFACTURING CO4 citations84
US9628049B2Apr 18, 2017
Filter device and duplexer
MURATA MANUFACTURING CO4 citations84
US9148123B2Sep 29, 2015
Ladder filter device and elastic wave resonator
MURATA MANUFACTURING CO7 citations84
US12407329B2Sep 2, 2025
Acoustic wave device
MURATA MANUFACTURING CO2 citations75
US11791797B2Oct 17, 2023
Electronic device and module including the same
MURATA MANUFACTURING CO3 citations73
US11764754B2Sep 19, 2023
Acoustic wave device and acoustic wave module including the same
MURATA MANUFACTURING CO3 citations73
US11700491B2Jul 11, 2023
Acoustic wave device and acoustic wave module including same
MURATA MANUFACTURING CO2 citations73
US11523223B2Dec 6, 2022
Acoustic wave device and acoustic wave module including same
MURATA MANUFACTURING CO2 citations73
US11489509B2Nov 1, 2022
Acoustic wave device and acoustic wave module including the same
MURATA MANUFACTURING CO4 citations73
US11482987B2Oct 25, 2022
High-frequency apparatus
MURATA MANUFACTURING CO2 citations73
US11134344B2Sep 28, 2021
Acoustic wave device and acoustic wave module including same
MURATA MANUFACTURING CO3 citations73
US11057015B2Jul 6, 2021
Surface acoustic wave device
MURATA MANUFACTURING CO6 citations73
US10931258B2Feb 23, 2021
Electronic device and module including the same
MURATA MANUFACTURING CO3 citations73
US10868517B2Dec 15, 2020
Filter device and duplexer
MURATA MANUFACTURING CO2 citations73
US10622964B2Apr 14, 2020
Elastic wave device
MURATA MANUFACTURING CO3 citations73
US10622968B2Apr 14, 2020
Filter device and duplexer
MURATA MANUFACTURING CO2 citations73
US10243535B2Mar 26, 2019
Electronic component
MURATA MANUFACTURING CO5 citations73
US9356576B2May 31, 2016
Filter device
MURATA MANUFACTURING CO5 citations73
US10601399B2Mar 24, 2020
Elastic wave filter apparatus
MURATA MANUFACTURING CO5 citations72
US10404226B2Sep 3, 2019
Power amplifier module
MURATA MANUFACTURING CO2 citations71
US10264677B2Apr 16, 2019
Electronic component and manufacturing method therefor
MURATA MANUFACTURING CO2 citations71
US12278616B2Apr 15, 2025
Electronic device and module including the same
MURATA MANUFACTURING CO0 citations62
US12176886B2Dec 24, 2024
High-frequency apparatus
MURATA MANUFACTURING CO0 citations62
US12081193B2Sep 3, 2024
Acoustic wave device and acoustic wave module including the same
MURATA MANUFACTURING CO0 citations62
US12047741B2Jul 23, 2024
Acoustic wave device and acoustic wave module including same
MURATA MANUFACTURING CO0 citations62
US11881843B2Jan 23, 2024
Filter device and duplexer
MURATA MANUFACTURING CO0 citations62
US11831300B2Nov 28, 2023
Elastic wave filter apparatus
MURATA MANUFACTURING CO0 citations62
US11700774B2Jul 11, 2023
Circuit module
MURATA MANUFACTURING CO0 citations62
US11159143B2Oct 26, 2021
Filter device and method for manufacturing the same
MURATA MANUFACTURING CO0 citations62
US11139795B2Oct 5, 2021
Electronic component and module including the same
MURATA MANUFACTURING CO1 citations62
US10868518B2Dec 15, 2020
Elastic wave device
MURATA MANUFACTURING CO1 citations62
US10177740B2Jan 8, 2019
Ladder filter and duplexer
MURATA MANUFACTURING CO1 citations60
US12231110B2Feb 18, 2025
Electronic component and method of manufacturing electronic component
MURATA MANUFACTURING CO0 citations56
US11043932B2Jun 22, 2021
Surface acoustic wave device
MURATA MANUFACTURING CO0 citations52
US10861900B2Dec 8, 2020
Circuit module
MURATA MANUFACTURING CO0 citations52
US9419582B2Aug 16, 2016
Filter device and duplexer
MURATA MANUFACTURING CO0 citations52
US12183645B2Dec 31, 2024
Electronic component including protective layer
MURATA MANUFACTURING CO0 citations47
US10128816B2Nov 13, 2018
High-frequency module
MURATA MANUFACTURING CO0 citations39