Inventor
NISHIKAWA YUKIHIRO
JP34 patents
⚠️ This page may combine multiple inventors who share the name “NISHIKAWA YUKIHIRO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJI ELECTRIC CO LTD
17 patentsUS9774269B2Sep 26, 2017
Bidirectional DC/DC converter
FUJI ELECTRIC CO LTD11 citations84
US9379617B2Jun 28, 2016
Resonant DC-DC converter control device
FUJI ELECTRIC CO LTD10 citations84
US8345456B2Jan 1, 2013
Control system of a power factor correction circuit
FUJI ELECTRIC CO LTD18 citations84
US6483722B2Nov 19, 2002
DC/DC converter and control method thereof
FUJI ELECTRIC CO LTD15 citations83
US6507504B2Jan 14, 2003
Method of controlling DC/DC converter for reducing power consumption
FUJI ELECTRIC CO LTD7 citations74
US6487092B2Nov 26, 2002
DC/DC converter
FUJI ELECTRIC CO LTD12 citations74
US10819243B2Oct 27, 2020
Isolated DC/DC converter, control unit for isolated DC/DC converter, and DC/AC converter
FUJI ELECTRIC CO LTD3 citations73
US9832909B2Nov 28, 2017
Electronic equipment cooling device and power converter having electronic equipment cooling device
FUJI ELECTRIC CO LTD5 citations72
US9661783B2May 23, 2017
Magnetic component cooling structure and power converter having the same
FUJI ELECTRIC CO LTD4 citations72
US9596791B2Mar 14, 2017
Cooling device and power converter having cooling device
FUJI ELECTRIC CO LTD6 citations72
US6781432B2Aug 24, 2004
Control circuit of MOSFET for synchronous rectification
FUJI ELECTRIC CO LTD4 citations63
US11936303B2Mar 19, 2024
Power conversion circuit including a first bridge circuit and a second bridge ciruit
FUJI ELECTRIC CO LTD1 citations62
US9197135B2Nov 24, 2015
Bi-directional DC/DC converter with frequency control change-over
FUJI ELECTRIC CO LTD3 citations62
US12231063B2Feb 18, 2025
Power conversion device, control device for power conversion device, and power conversion control method
FUJI ELECTRIC CO LTD0 citations43
US9331580B2May 3, 2016
Switching power supply system and control circuit of the switching power supply system
FUJI ELECTRIC CO LTD0 citations40
US9042128B2May 26, 2015
Switching power supply
FUJI ELECTRIC CO LTD0 citations40
US8885365B2Nov 11, 2014
Switching power supply device and method for control thereof
FUJI ELECTRIC CO LTD0 citations40
FUJI ELEC DEVICE TECH CO LTD
5 patentsUS7746672B2Jun 29, 2010
Switching power supply apparatus
FUJI ELEC DEVICE TECH CO LTD18 citations84
US7245087B2Jul 17, 2007
Power conversion device
FUJI ELEC DEVICE TECH CO LTD12 citations82
US8014177B2Sep 6, 2011
Switching power supply with pulse frequency modulation control
FUJI ELEC DEVICE TECH CO LTD4 citations63
US7719859B2May 18, 2010
Switching power supply device and drive circuit thereof
FUJI ELEC DEVICE TECH CO LTD4 citations63
US7242596B2Jul 10, 2007
Control method for switching power supply circuit
FUJI ELEC DEVICE TECH CO LTD2 citations63
NISHIKAWA YUKIHIRO
5 patentsUS8773111B2Jul 8, 2014
Current estimation circuit
NISHIKAWA YUKIHIRO13 citations83
US8213189B2Jul 3, 2012
Resonance-type power supply with improved convertion efficiency
NISHIKAWA YUKIHIRO14 citations83
US8443935B2May 21, 2013
Sound absorbing body
NISHIKAWA YUKIHIRO2 citations54
US9230533B2Jan 5, 2016
Sound absorbing body and manufacturing method thereof
NISHIKAWA YUKIHIRO0 citations44
US8090182B2Jan 3, 2012
Image reconstruction device, image reconstruction method, image reconstruction program, and CT apparatus
NISHIKAWA YUKIHIRO0 citations40