Inventor
TAMEGAI YOICHI
JP18 patents
⚠️ This page may combine multiple inventors who share the name “TAMEGAI YOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM CO LTD
15 patentsUS8044639B2Oct 25, 2011
Selector circuit
ROHM CO LTD80 citations97
US7924540B2Apr 12, 2011
Over-voltage protection circuit
ROHM CO LTD20 citations92
US7579784B2Aug 25, 2009
Switching power supply and its control circuit, and electronic apparatus employing such switching power supply
ROHM CO LTD21 citations92
US7253596B2Aug 7, 2007
Power supply apparatus capable of supplying a stable converted voltage
ROHM CO LTD42 citations92
US7863833B2Jan 4, 2011
DC/DC converter control circuit, and power supply apparatus, light emitting apparatus and electronic device using the same
ROHM CO LTD11 citations83
US10802078B2Oct 13, 2020
Current monitoring circuit and coulomb counter circuit
ROHM CO LTD6 citations73
US7248002B2Jul 24, 2007
Light emission control apparatus and light emission control method with temperature-sensitive driving current control
ROHM CO LTD9 citations73
US10186959B2Jan 22, 2019
Power supply circuit, control circuit thereof, and electronic apparatus
ROHM CO LTD2 citations72
US10101399B2Oct 16, 2018
Apparatus for estimating residual battery capacity, system for estimating residual battery capacity, battery pack, and method for estimating residual battery capacity
ROHM CO LTD2 citations72
US7994737B2Aug 9, 2011
Drive circuit of DC/DC converter, light emitting apparatus and electronic device using the same
ROHM CO LTD6 citations62
US7368884B2May 6, 2008
DC/DC converter
ROHM CO LTD1 citations62
US7960955B2Jun 14, 2011
Power supply device, electronic device using the same, and semiconductor device
ROHM CO LTD5 citations59
US7781988B2Aug 24, 2010
DC/DC converter
ROHM CO LTD0 citations52
US7190195B2Mar 13, 2007
Input circuit and output circuit
ROHM CO LTD1 citations51
US7894717B2Feb 22, 2011
Control circuit for self exciting DC/DC converter
ROHM CO LTD0 citations41