Inventor
KOJIMA CHIKARA
JP69 patents
Patents
50 patentsUS9772314B2Sep 26, 2017
Ultrasonic sensor and measuring method using the same, and method of manufacturing ultrasonic sensor
SEIKO EPSON CORP7 citations84
US9144977B2Sep 29, 2015
Liquid ejection head and liquid ejection apparatus
SEIKO EPSON CORP5 citations84
US11378670B2Jul 5, 2022
Ultrasonic device and ultrasonic apparatus
SEIKO EPSON CORP2 citations73
US11152559B2Oct 19, 2021
Piezoelectric element, ultrasonic sensor, discharging head, ultrasonic device, liquid discharging device, and method of manufacturing piezoelectric element
SEIKO EPSON CORP2 citations73
US10161916B2Dec 25, 2018
Ultrasonic sensor and measuring method using the same, and method of manufacturing ultrasonic sensor
SEIKO EPSON CORP2 citations73
US10059101B2Aug 28, 2018
Liquid ejection head and liquid ejection apparatus
SEIKO EPSON CORP2 citations73
US9987663B2Jun 5, 2018
Ultrasonic sensor
SEIKO EPSON CORP2 citations73
US12239025B2Feb 25, 2025
Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatus
SEIKO EPSON CORP0 citations63
US11917922B2Feb 27, 2024
Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatus
SEIKO EPSON CORP0 citations63
US11581478B2Feb 14, 2023
Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatus
SEIKO EPSON CORP0 citations63
US11179748B2Nov 23, 2021
Mounting structure, ultrasonic device, ultrasonic probe, ultrasonic apparatus, and electronic apparatus
SEIKO EPSON CORP0 citations63
US11041832B2Jun 22, 2021
Ultrasonic device and electronic apparatus
SEIKO EPSON CORP0 citations63
US9498952B2Nov 22, 2016
Liquid ejection head and liquid ejection apparatus
SEIKO EPSON CORP2 citations63
US9308727B2Apr 12, 2016
Liquid ejecting head and liquid ejecting apparatus
SEIKO EPSON CORP2 citations63
US8727510B2May 20, 2014
Liquid ejection head and liquid ejection apparatus
SEIKO EPSON CORP2 citations63
US11872592B2Jan 16, 2024
Ultrasonic device and ultrasonic apparatus
SEIKO EPSON CORP0 citations62
US11858000B2Jan 2, 2024
Ultrasonic device and ultrasonic sensor
SEIKO EPSON CORP0 citations62
US11712718B2Aug 1, 2023
Ultrasonic sensor
SEIKO EPSON CORP0 citations62
US11594670B2Feb 28, 2023
MEMs device and electronic device
SEIKO EPSON CORP1 citations62
US11590534B2Feb 28, 2023
Ultrasonic sensor, ultrasonic device, and method of manufacturing ultrasonic sensor
SEIKO EPSON CORP0 citations62
US11437564B2Sep 6, 2022
Ultrasonic device and ultrasonic apparatus
SEIKO EPSON CORP0 citations62
US11167314B2Nov 9, 2021
Ultrasonic sensor
SEIKO EPSON CORP0 citations62
US11085816B2Aug 10, 2021
Ultrasonic wave sensor and ultrasonic wave device
SEIKO EPSON CORP0 citations62
US10991871B2Apr 27, 2021
Piezoelectric element, piezoelectric actuator, ultrasonic probe, ultrasonic device, electronic apparatus, liquid jet head, and liquid jet device
SEIKO EPSON CORP0 citations62
US10910548B2Feb 2, 2021
Ultrasonic device, ultrasonic probe, ultrasonic apparatus, and ultrasonic device manufacturing method
SEIKO EPSON CORP0 citations62
US10833244B2Nov 10, 2020
Piezoelectric element and method for manufacturing same
SEIKO EPSON CORP1 citations62
US10656003B2May 19, 2020
Liquid surface sensor and liquid surface detection method
SEIKO EPSON CORP1 citations62
US11884558B2Jan 30, 2024
Fluid device
SEIKO EPSON CORP0 citations61
US10916693B2Feb 9, 2021
Piezoelectric element and piezoelectric element-based device
SEIKO EPSON CORP0 citations61
US10203404B2Feb 12, 2019
Ultrasonic sensor and manufacturing method for the same
SEIKO EPSON CORP1 citations61
US12163540B2Dec 10, 2024
Fluid device
SEIKO EPSON CORP0 citations60
US12433570B2Oct 7, 2025
Ultrasound probe
SEIKO EPSON CORP0 citations58
US12535346B2Jan 27, 2026
Fluidic device and method for controlling fluidic device
SEIKO EPSON CORP0 citations52
US12350711B2Jul 8, 2025
Ultrasonic element and ultrasonic device
SEIKO EPSON CORP0 citations52
US12269062B2Apr 8, 2025
Ultrasonic device
SEIKO EPSON CORP0 citations52
US12156475B2Nov 26, 2024
Piezoelectric device having plurality of vibrating regions and electronic apparatus
SEIKO EPSON CORP0 citations52
US12135251B2Nov 5, 2024
Piezoelectric element device, piezoelectric element apparatus, and load detection method
SEIKO EPSON CORP0 citations52
US12083558B2Sep 10, 2024
Ultrasonic device to suppress influence of crosstalk between channels
SEIKO EPSON CORP0 citations52
US11998390B2Jun 4, 2024
Piezoelectric actuator, ultrasound element, ultrasound probe, ultrasound device, and electronic device
SEIKO EPSON CORP0 citations52
US11754531B2Sep 12, 2023
Ultrasonic device
SEIKO EPSON CORP0 citations52
US11690594B2Jul 4, 2023
Piezoelectric actuator, ultrasonic element, ultrasonic probe, ultrasonic device, and electronic device
SEIKO EPSON CORP0 citations52
US11594671B2Feb 28, 2023
Ultrasonic device and ultrasonic sensor
SEIKO EPSON CORP0 citations52
US11532780B2Dec 20, 2022
Ultrasonic sensor and electronic device
SEIKO EPSON CORP0 citations52
US11529649B2Dec 20, 2022
Piezoelectric film, piezoelectric module, and method of manufacturing piezoelectric film
SEIKO EPSON CORP0 citations52
US11453030B2Sep 27, 2022
Ultrasonic sensor and ultrasonic apparatus
SEIKO EPSON CORP0 citations52
US11453031B2Sep 27, 2022
Ultrasonic element and ultrasonic device
SEIKO EPSON CORP0 citations52
US11233188B2Jan 25, 2022
Ultrasonic wave sensor and ultrasonic wave device
SEIKO EPSON CORP0 citations52
US10654071B2May 19, 2020
Ultrasonic element array, ultrasonic probe, ultrasonic apparatus, and manufacturing method for ultrasonic element array
SEIKO EPSON CORP0 citations52
US10252296B2Apr 9, 2019
Ultrasonic sensor
SEIKO EPSON CORP0 citations52
US11018291B2May 25, 2021
Ultrasonic device and ultrasonic apparatus
SEIKO EPSON CORP0 citations51
Showing the top 50 of 69 patents by PatentIndex Score.