Inventor
YOSHINAGA MITSUTOMO
JP17 patents
⚠️ This page may combine multiple inventors who share the name “YOSHINAGA MITSUTOMO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANKEN ELECTRIC CO LTD
15 patentsUS6529391B2Mar 4, 2003
Switching power supply
SANKEN ELECTRIC CO LTD38 citations90
US9742289B2Aug 22, 2017
Integrated circuit and switching power-supply device
SANKEN ELECTRIC CO LTD6 citations72
US12126267B2Oct 22, 2024
Resonant converter with a synchronous rectifier controller having ontime and offtime counting
SANKEN ELECTRIC CO LTD1 citations54
US12372557B2Jul 29, 2025
Excitation current detection circuit and semiconductor device
SANKEN ELECTRIC CO LTD0 citations51
US10879786B2Dec 29, 2020
Power conversion device and control circuit
SANKEN ELECTRIC CO LTD0 citations51
US10608536B2Mar 31, 2020
Power conversion device and control circuit
SANKEN ELECTRIC CO LTD0 citations51
US9078324B2Jul 7, 2015
LED driving device, LED lighting apparatus, and error amplification circuit
SANKEN ELECTRIC CO LTD1 citations50
US9172307B2Oct 27, 2015
Switching power source device and control IC which are capable of performing constant power control
SANKEN ELECTRIC CO LTD0 citations41
US11973431B2Apr 30, 2024
Switching power supply apparatus
SANKEN ELECTRIC CO LTD0 citations40
US10389247B2Aug 20, 2019
Power conversion device and control circuit including stop transitioning to stop state
SANKEN ELECTRIC CO LTD0 citations40
US9735694B2Aug 15, 2017
Integrated circuit and switching power-supply device with charging control circuit
SANKEN ELECTRIC CO LTD0 citations40
US9560704B2Jan 31, 2017
LED driving device and LED lighting apparatus
SANKEN ELECTRIC CO LTD0 citations40
US9484812B2Nov 1, 2016
Direct-current power supply device
SANKEN ELECTRIC CO LTD0 citations40
US10050543B2Aug 14, 2018
Switching power supply device changing output voltage setting and integrated circuit for switching power supply device
SANKEN ELECTRIC CO LTD0 citations38
US10763751B2Sep 1, 2020
Device and method for converting input voltage to output voltage
SANKEN ELECTRIC CO LTD0 citations37