Inventor
TSUTSUMI AKIO
JP24 patents
Patents
24 patentsUS11320792B2May 3, 2022
Circuit device, physical quantity measuring device, electronic apparatus, and vehicle
SEIKO EPSON CORP7 citations85
US10884041B2Jan 5, 2021
Physical quantity measurement apparatus, electronic apparatus, and vehicle
SEIKO EPSON CORP2 citations72
US10268164B2Apr 23, 2019
Circuit device, physical quantity measurement device, electronic apparatus, and vehicle
SEIKO EPSON CORP4 citations72
US10222759B2Mar 5, 2019
Integrated circuit device, electronic apparatus, and vehicle
SEIKO EPSON CORP2 citations72
US9658065B2May 23, 2017
Physical quantity detection circuit, physical quantity detection device, electronic apparatus and moving object
SEIKO EPSON CORP5 citations72
US11567529B2Jan 31, 2023
Real-time clock device and electronic apparatus
SEIKO EPSON CORP0 citations62
US11262416B2Mar 1, 2022
Diagnostic circuit, electronic circuit, electronic device, and mobile body
SEIKO EPSON CORP1 citations62
US11201588B2Dec 14, 2021
Oscillator and electronic apparatus
SEIKO EPSON CORP1 citations62
US11196427B2Dec 7, 2021
Charge pump circuit, PLL circuit, and oscillator
SEIKO EPSON CORP0 citations57
US12278596B2Apr 15, 2025
Circuit unit and vibrator device
SEIKO EPSON CORP0 citations55
US12184293B2Dec 31, 2024
Circuit device and oscillator
SEIKO EPSON CORP0 citations51
US11698306B2Jul 11, 2023
Digital-output temperature sensor, circuit device, and oscillator
SEIKO EPSON CORP0 citations51
US11662441B2May 30, 2023
Circuit device, physical quantity measuring device, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations51
US11397446B2Jul 26, 2022
Circuit device, electronic device, communication system, and vehicle electronic key system
SEIKO EPSON CORP0 citations51
US11043954B2Jun 22, 2021
Oscillation circuit, oscillator, communication device, and method of controlling oscillation circuit
SEIKO EPSON CORP0 citations51
US10680554B2Jun 9, 2020
Circuit device, oscillator, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations51
US10396804B2Aug 27, 2019
Circuit device, physical quantity measurement device, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations51
US10224939B2Mar 5, 2019
Circuit device, physical quantity measurement device, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations51
US10613483B2Apr 7, 2020
Integrated circuit device, physical quantity measuring device, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations41
US10608586B2Mar 31, 2020
Resonator device, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations41
US10403679B2Sep 3, 2019
Integrated circuit device, physical quantity measuring device, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations41
US10305496B2May 28, 2019
Circuit device, physical quantity measurement apparatus, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations41
US10666195B2May 26, 2020
Resonator device, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations40
US10594295B2Mar 17, 2020
Resonator device, electronic apparatus, and vehicle
SEIKO EPSON CORP0 citations40