Inventor
OSAWA EIJI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “OSAWA EIJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SEIKO EPSON CORP
20 patentsUS11872592B2Jan 16, 2024
Ultrasonic device and ultrasonic apparatus
SEIKO EPSON CORP0 citations62
US11594670B2Feb 28, 2023
MEMs device and electronic device
SEIKO EPSON CORP1 citations62
US11225090B2Jan 18, 2022
Ultrasonic sensor and electronic apparatus
SEIKO EPSON CORP1 citations62
US10895502B2Jan 19, 2021
Media type determination device, electronic apparatus, and media type determination method
SEIKO EPSON CORP0 citations62
US12594581B2Apr 7, 2026
Electronic device
SEIKO EPSON CORP0 citations61
US12433570B2Oct 7, 2025
Ultrasound probe
SEIKO EPSON CORP0 citations58
US11529649B2Dec 20, 2022
Piezoelectric film, piezoelectric module, and method of manufacturing piezoelectric film
SEIKO EPSON CORP0 citations52
US10134976B2Nov 20, 2018
Piezoelectric element, liquid discharging head provided with piezoelectric element, and liquid discharging apparatus
SEIKO EPSON CORP0 citations52
US9666784B2May 30, 2017
Piezoelectric element, liquid discharging head provided with piezoelectric element, and liquid discharging apparatus
SEIKO EPSON CORP0 citations52
US12589963B2Mar 31, 2026
Ultrasonic device and medium transport device
SEIKO EPSON CORP0 citations51
US11856164B2Dec 26, 2023
Transport apparatus, image scanner, and printer comprising a transmitter, receiver, a long-distance sound field, selecting a beam diameter from a plurality of beam diameters at a short-distance sound field limit distance
SEIKO EPSON CORP0 citations51
US11506772B2Nov 22, 2022
Ultrasonic device and ultrasonic measuring apparatus
SEIKO EPSON CORP0 citations51
US11474220B2Oct 18, 2022
Ultrasonic device and ultrasonic measuring apparatus
SEIKO EPSON CORP0 citations51
US11117766B2Sep 14, 2021
Multi-feed detection device and electronic device
SEIKO EPSON CORP0 citations51
US11027934B2Jun 8, 2021
Multi-feed detection device, multi-feed detection method, and electronic device
SEIKO EPSON CORP0 citations51
US11910720B2Feb 20, 2024
Piezoelectric device and MEMS device
SEIKO EPSON CORP0 citations50
US9254651B2Feb 9, 2016
Liquid ejecting head, liquid ejecting apparatus, piezoelectric element, and methods of manufacturing liquid ejecting head, liquid ejecting apparatus, and piezoelectric element
SEIKO EPSON CORP0 citations50
US10722214B2Jul 28, 2020
Ultrasonic device, ultrasonic probe, and ultrasonic apparatus
SEIKO EPSON CORP0 citations41
US10600951B2Mar 24, 2020
Vibrating plate structure and piezoelectric element application device
SEIKO EPSON CORP0 citations41
US10355194B2Jul 16, 2019
Piezoelectric device and method of driving piezoelectric device
SEIKO EPSON CORP0 citations39