Inventor
OHTAKE OSAMU
JP24 patents
⚠️ This page may combine multiple inventors who share the name “OHTAKE OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SANKEN ELECTRIC CO LTD
23 patentsUS7382633B2Jun 3, 2008
DC converter
SANKEN ELECTRIC CO LTD16 citations83
US10910952B1Feb 2, 2021
Control apparatus and method for current resonance circuit and current resonance power supply
SANKEN ELECTRIC CO LTD3 citations72
US9455640B2Sep 27, 2016
Switching power-supply device
SANKEN ELECTRIC CO LTD4 citations72
US9331584B2May 3, 2016
Switching power-supply device
SANKEN ELECTRIC CO LTD4 citations72
US9564826B2Feb 7, 2017
Current resonant power supply device
SANKEN ELECTRIC CO LTD3 citations70
US10826311B2Nov 3, 2020
Alternating-current voltage detection circuit
SANKEN ELECTRIC CO LTD1 citations62
US10224730B2Mar 5, 2019
Capacitor discharge circuit
SANKEN ELECTRIC CO LTD1 citations62
US12119742B2Oct 15, 2024
Integrated circuit and method of digitally controling critical mode power factor correction circuit
SANKEN ELECTRIC CO LTD0 citations51
US12113436B2Oct 8, 2024
Integrated circuit and method of synchronous rectification control of bridgeless power factor correction circuit
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
US9871455B2Jan 16, 2018
Current resonance type power supply device
SANKEN ELECTRIC CO LTD0 citations51
US9774262B2Sep 26, 2017
Current resonance type power supply device
SANKEN ELECTRIC CO LTD1 citations51
US9338844B2May 10, 2016
LED lighting apparatus
SANKEN ELECTRIC CO LTD1 citations51
US9985536B2May 29, 2018
Current resonant power supply device
SANKEN ELECTRIC CO LTD0 citations49
US9979297B2May 22, 2018
Current resonant power supply device
SANKEN ELECTRIC CO LTD0 citations49
US9754740B2Sep 5, 2017
Switching control circuit and switching power-supply device
SANKEN ELECTRIC CO LTD0 citations49
US9306383B2Apr 5, 2016
Low current protection circuit
SANKEN ELECTRIC CO LTD0 citations41
US10608526B2Mar 31, 2020
Device and method for calculating switching time
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
US9641088B2May 2, 2017
Current resonant power source apparatus
SANKEN ELECTRIC CO LTD0 citations40
US9444352B2Sep 13, 2016
Current resonance type power supply device
SANKEN ELECTRIC CO LTD0 citations40
US9716427B2Jul 25, 2017
Power factor correction circuit having bottom skip controller
SANKEN ELECTRIC CO LTD0 citations38