Inventor
FUKUMOTO YUKINARI
JP7 patents
Patents
7 patentsUS6980445B2Dec 27, 2005
Power factor improving converter and control method thereof
SANKEN ELECTRIC CO LTD37 citations92
US7221128B2May 22, 2007
Converter with start-up circuit
SANKEN ELECTRIC CO LTD41 citations86
US7330365B2Feb 12, 2008
Synchronous commutation DC-DC converter
SANKEN ELECTRIC CO LTD13 citations83
US7212417B2May 1, 2007
Dual-mode switching DC-to-DC converter
SANKEN ELECTRIC CO LTD12 citations82
US7746004B2Jun 29, 2010
Discharge-lamp lighting apparatus
SANKEN ELECTRIC CO LTD2 citations61
US7339800B2Mar 4, 2008
Switching power source device of resonance type capable of controlling switching loss and noise
SANKEN ELECTRIC CO LTD5 citations60
US7239533B2Jul 3, 2007
DC power supply apparatus
SANKEN ELECTRIC CO LTD5 citations59