Inventor
HORIUCHI SACHITO
JP18 patents
⚠️ This page may combine multiple inventors who share the name “HORIUCHI SACHITO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM CO LTD
16 patentsUS6822403B2Nov 23, 2004
Light emitting element drive device and electronic device having light emitting element
ROHM CO LTD83 citations97
US6400211B1Jun 4, 2002
DC/DC converter
ROHM CO LTD170 citations95
US6949892B2Sep 27, 2005
Light emitting element drive device and electronic device light emitting element
ROHM CO LTD32 citations92
US5659241AAug 19, 1997
DC/DC converter and audio device incorporating the same
ROHM CO LTD34 citations92
US5565762AOct 15, 1996
DC/DC converter and audio device incorporating the same
ROHM CO LTD20 citations92
US7821233B2Oct 26, 2010
Charging circuit
ROHM CO LTD11 citations84
US5886475AMar 23, 1999
EL element driving circuit and EL element lighting device using the same
ROHM CO LTD18 citations84
US6025824AFeb 15, 2000
Piezoelectric transformer driving circuit and cold cathode tube illuminating device using the same
ROHM CO LTD10 citations74
US5939840AAug 17, 1999
Liquid crystal back light illuminating device and liquid crystal display device
ROHM CO LTD15 citations74
US5770973AJun 23, 1998
Semiconductor device for amplifying audio signals
ROHM CO LTD16 citations74
US5808458ASep 15, 1998
Regulated power supply circuit
ROHM CO LTD11 citations73
US10566941B2Feb 18, 2020
Integrated circuit and method of manufacturing integrated circuit
ROHM CO LTD2 citations71
US5696871ADec 9, 1997
DC motor control circuit
ROHM CO LTD2 citations61
US9899974B2Feb 20, 2018
Chopper stabilized amplifier
ROHM CO LTD1 citations51
US10554179B2Feb 4, 2020
Differential circuit
ROHM CO LTD0 citations50
US9935543B2Apr 3, 2018
Digital control power circuit, control circuit thereof, control method, and electronic device using the same
ROHM CO LTD0 citations31