Inventor
KITAGAWA ATSUSHI
JP27 patents
⚠️ This page may combine multiple inventors who share the name “KITAGAWA ATSUSHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM CO LTD
10 patentsUS7518892B2Apr 14, 2009
Semiconductor integrated circuit including charge pump and electronic device including the semiconductor integrated circuit
ROHM CO LTD24 citations92
US7157866B2Jan 2, 2007
Light emitting element driving device and portable apparatus equipped with light emitting elements
ROHM CO LTD40 citations92
US7586297B2Sep 8, 2009
Soft start circuit, power supply unit and electric equipment
ROHM CO LTD10 citations84
US7405549B2Jul 29, 2008
Soft start circuit, power supply unit and electric equipment
ROHM CO LTD13 citations84
US7218496B2May 15, 2007
Overcurrent protection circuit
ROHM CO LTD18 citations84
US7277264B2Oct 2, 2007
Semiconductor integrated circuit having current detection functionality and power supply unit equipped with the same
ROHM CO LTD9 citations74
US7893667B2Feb 22, 2011
PWM power supply apparatus having a controlled duty ratio without causing overall system oscillation
ROHM CO LTD4 citations57
US9812964B2Nov 7, 2017
Semiconductor device and power supply unit utilizing the same
ROHM CO LTD0 citations52
US9391038B2Jul 12, 2016
Semiconductor device and power supply unit utilizing the same
ROHM CO LTD0 citations52
US8872577B2Oct 28, 2014
Semiconductor device and power supply unit utilizing the same
ROHM CO LTD0 citations52
NITTO DENKO CORP
7 patentsUS7271862B2Sep 18, 2007
Light diffusing sheet, optical element and image display
NITTO DENKO CORP26 citations92
US6741307B2May 25, 2004
Optical diffusion sheet, optical element, and viewing display
NITTO DENKO CORP47 citations92
US6404469B1Jun 11, 2002
Wide viewing angle polarizing plate and liquid crystal display
NITTO DENKO CORP38 citations92
US7037573B2May 2, 2006
Antireflection film, its production method, optical device, and image display
NITTO DENKO CORP36 citations90
US6888592B2May 3, 2005
Liquid crystal display wide viewing angle polarizing film and liquid crystal display wide viewing angle polarizing adhesive film
NITTO DENKO CORP12 citations83
US6882385B2Apr 19, 2005
Polarizing plate having protective films with plasticizer, liquid crystal display using the same, and methods of making the same
NITTO DENKO CORP7 citations73
US6847419B2Jan 25, 2005
Polarizing plate and liquid crystal display using the same
NITTO DENKO CORP1 citations51
KITAGAWA ATSUSHI
3 patentsUS8063494B2Nov 22, 2011
Semiconductor device and power supply unit utilizing the same
KITAGAWA ATSUSHI10 citations82
US8305011B2Nov 6, 2012
Driving circuit for light emitting elements
KITAGAWA ATSUSHI6 citations71
US8704357B2Apr 22, 2014
Semiconductor device and power supply unit utilizing the same
KITAGAWA ATSUSHI0 citations51
PANASONIC IP MAN CO LTD
3 patentsUS10033275B2Jul 24, 2018
DC-DC converter with a switching transistor arranged in an area where an inductor overlaps a substrate
PANASONIC IP MAN CO LTD2 citations72
US10483966B2Nov 19, 2019
Switching circuit
PANASONIC IP MAN CO LTD1 citations61
US10205449B2Feb 12, 2019
Switching circuit
PANASONIC IP MAN CO LTD0 citations51