Inventor
KAI SEIJI
JP29 patents
⚠️ This page may combine multiple inventors who share the name “KAI SEIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
MURATA MANUFACTURING CO
22 patentsUS10243536B2Mar 26, 2019
Elastic wave device and manufacturing method thereof
MURATA MANUFACTURING CO8 citations83
US10862455B2Dec 8, 2020
Elastic wave device
MURATA MANUFACTURING CO3 citations73
US10659001B2May 19, 2020
Elastic wave device
MURATA MANUFACTURING CO2 citations73
US10958240B2Mar 23, 2021
Elastic wave device
MURATA MANUFACTURING CO3 citations72
US10707830B2Jul 7, 2020
Elastic wave device and method for manufacturing the same
MURATA MANUFACTURING CO4 citations72
US10637432B2Apr 28, 2020
Elastic wave device
MURATA MANUFACTURING CO3 citations72
US10148245B2Dec 4, 2018
Elastic wave device
MURATA MANUFACTURING CO6 citations72
US10374142B2Aug 6, 2019
Surface acoustic wave device and manufacturing method therefor
MURATA MANUFACTURING CO3 citations69
US12567850B2Mar 3, 2026
Acoustic wave device and manufacturing method for acoustic wave device
MURATA MANUFACTURING CO0 citations62
US12431860B2Sep 30, 2025
Acoustic wave device
MURATA MANUFACTURING CO0 citations62
US12413206B2Sep 9, 2025
Acoustic wave device
MURATA MANUFACTURING CO0 citations62
US9271400B2Feb 23, 2016
Electronic component and manufacturing method therefor
MURATA MANUFACTURING CO2 citations61
US12562709B2Feb 24, 2026
Acoustic wave device
MURATA MANUFACTURING CO0 citations52
US11588460B2Feb 21, 2023
Elastic wave device manufacturing method, elastic wave device, radio-frequency front-end circuit, and communication device
MURATA MANUFACTURING CO0 citations51
US10644669B2May 5, 2020
Elastic wave device
MURATA MANUFACTURING CO0 citations51
US10320355B2Jun 11, 2019
Method of manufacturing elastic wave device
MURATA MANUFACTURING CO0 citations51
US11626851B2Apr 11, 2023
Acoustic wave device, high-frequency front end circuit, communication device, and method for manufacturing acoustic wave device
MURATA MANUFACTURING CO0 citations49
US11539343B2Dec 27, 2022
Acoustic wave device, high-frequency front-end circuit, and communication device
MURATA MANUFACTURING CO0 citations49
US11245380B2Feb 8, 2022
Acoustic wave device, high-frequency front-end circuit, and communication device
MURATA MANUFACTURING CO0 citations49
US10659002B2May 19, 2020
Elastic wave device
MURATA MANUFACTURING CO0 citations41
US9876484B2Jan 23, 2018
Elastic wave device with first and second support layers providing a hollow path
MURATA MANUFACTURING CO0 citations40
US10622965B2Apr 14, 2020
Surface acoustic wave device assembly
MURATA MANUFACTURING CO0 citations39
SANYO ELECTRIC CO
4 patentsUS7138670B2Nov 21, 2006
Semiconductor device for use in a solid state imaging device
SANYO ELECTRIC CO3 citations62
US6995915B2Feb 7, 2006
Manufacturing method of micro-lens, manufacturing method of solid-state image pickup device and solid-state image pickup device
SANYO ELECTRIC CO2 citations60
US7459327B2Dec 2, 2008
Method for manufacturing micro lenses including underlayer film and lens film etching steps
SANYO ELECTRIC CO3 citations58
US7348133B2Mar 25, 2008
Method of manufacturing solid-state image sensing device
SANYO ELECTRIC CO2 citations50