Inventor
FUKUSHIMA SHUN
JP21 patents
Patents
21 patentsUS10892681B2Jan 12, 2021
DC-DC converter operable to perform current-mode control output feedback control
ROHM CO LTD8 citations83
US10879811B2Dec 29, 2020
Switching power supply device and semiconductor device
ROHM CO LTD8 citations83
US10651846B2May 12, 2020
Driver circuit and switching regulator
ROHM CO LTD9 citations83
US11996766B2May 28, 2024
Power supply device
ROHM CO LTD2 citations72
US11196343B2Dec 7, 2021
DC-DC converter
ROHM CO LTD2 citations72
US10594305B2Mar 17, 2020
Oscillator
ROHM CO LTD2 citations72
US9685858B2Jun 20, 2017
DC/DC converter, control circuit and control method thereof, and electronic apparatus
ROHM CO LTD6 citations71
US12015349B2Jun 18, 2024
Switching circuit, DC/DC converter, and control circuit thereof
ROHM CO LTD1 citations62
US11050348B2Jun 29, 2021
Semiconductor device
ROHM CO LTD1 citations62
US10910026B2Feb 2, 2021
Clock generation circuit, switching power supply device, and semiconductor device
ROHM CO LTD0 citations62
US10643678B2May 5, 2020
Clock generation circuit, switching power supply device, and semiconductor device
ROHM CO LTD1 citations62
US10320292B2Jun 11, 2019
Phase compensation circuit and DC/DC converter using the same
ROHM CO LTD1 citations62
US11482933B2Oct 25, 2022
Switching power supply device
ROHM CO LTD1 citations61
US12081125B2Sep 3, 2024
Control circuit of DC/DC converter, power supply circuit, and electronic device
ROHM CO LTD1 citations59
US11527297B2Dec 13, 2022
Semiconductor device and memory abnormality determination system
ROHM CO LTD0 citations51
US11463003B2Oct 4, 2022
Power supply control device to discharge an output voltage at a time of enable instantaneous interruption
ROHM CO LTD0 citations51
US11368093B2Jun 21, 2022
Switching power supply device
ROHM CO LTD0 citations51
US10965206B2Mar 30, 2021
Step-up/down DC-DC converter
ROHM CO LTD0 citations51
US12166419B2Dec 10, 2024
Control circuit of boost DC-DC converter, power supply circuit, and electronic device
ROHM CO LTD0 citations48
US12542489B2Feb 3, 2026
DC/DC converter control circuit, power supply circuit and electronic device
ROHM CO LTD0 citations47
US12149164B2Nov 19, 2024
Control circuit and power supply circuit of DC/DC converter, and electronic equipment
ROHM CO LTD0 citations47