Inventor
YANAGIDA OSAMU
JP9 patents
⚠️ This page may combine multiple inventors who share the name “YANAGIDA OSAMU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM CO LTD
8 patentsUS7724551B2May 25, 2010
Step-up circuit and portable device using it
ROHM CO LTD95 citations95
US7453711B2Nov 18, 2008
Step-up power supply unit and portable apparatus utilizing the same
ROHM CO LTD36 citations91
US9685858B2Jun 20, 2017
DC/DC converter, control circuit and control method thereof, and electronic apparatus
ROHM CO LTD6 citations71
US9343969B2May 17, 2016
Switching regulator, control circuit and control method thereof, and electronic apparatus
ROHM CO LTD3 citations71
US11588404B2Feb 21, 2023
Semiconductor device and step-down multi-phase DC/DC converter
ROHM CO LTD0 citations50
US9300211B2Mar 29, 2016
DC/DC converter, control circuit thereof, and electronic apparatus
ROHM CO LTD1 citations50
US9223328B2Dec 29, 2015
Switching regulator, control circuit and control method thereof, and electronic apparatus
ROHM CO LTD1 citations50
US10608534B2Mar 31, 2020
DC/DC converter for providing function of noise countermeasures, control circuit thereof, control method thereof, and electronic apparatus including the DC/DC converter
ROHM CO LTD0 citations39