Inventor
KATOH TOMONARI
JP14 patents
Patents
14 patentsUS7436163B2Oct 14, 2008
DC-DC converter
RICOH KK18 citations92
US7262588B2Aug 28, 2007
Method and apparatus for power supply controlling capable of effectively controlling switching operations
RICOH KK21 citations92
US7221129B2May 22, 2007
Switching regulator and method for changing output voltages thereof
RICOH KK39 citations92
US7567065B2Jul 28, 2009
Switching regulator and method for changing output voltages thereof
RICOH KK10 citations84
US7541788B2Jun 2, 2009
Switching regulator and method for switching output voltage thereof
RICOH KK16 citations84
US7199568B2Apr 3, 2007
DC power supply and integrated circuit device
RICOH KK10 citations83
US7187159B2Mar 6, 2007
DC—DC converter
RICOH KK16 citations83
US6922321B2Jul 26, 2005
Overcurrent limitation circuit
RICOH KK15 citations81
US7408334B2Aug 5, 2008
DC converter with halt mode setting means
RICOH KK4 citations72
US7075279B2Jul 11, 2006
DC converter with halt mode setting means
RICOH KK9 citations72
US6922043B2Jul 26, 2005
DC converter with halt mode setting means
RICOH KK8 citations72
US7701187B2Apr 20, 2010
DC converter with halt mode setting means
RICOH KK2 citations61
US7193400B2Mar 20, 2007
DC converter with halt mode setting means
RICOH KK3 citations61
US7468599B2Dec 23, 2008
DC power supply and integrated circuit device
RICOH KK0 citations51