Inventor
KAWAKUBO YOSUKE
JP6 patents
Patents
6 patentsUS7990122B2Aug 2, 2011
Digital control switching power-supply device and information processing equipment
HITACHI LTD28 citations91
US7403365B2Jul 22, 2008
Over-current detection circuit and method for power-supply device
HITACHI LTD12 citations83
USRE43946EJan 29, 2013
Digital control switching power-supply device and information processing equipment
HITACHI LTD6 citations82
US7089435B2Aug 8, 2006
Storage unit having normal and backup power sources for use in retaining data when normal power fails
HITACHI LTD11 citations81
US7557461B2Jul 7, 2009
Power supply device and power supply method
HITACHI LTD7 citations73
US7615980B2Nov 10, 2009
Marginal check voltage setting means built-in power-supply device
HITACHI LTD2 citations62