Inventor
MIYANAGA KOICHI
JP24 patents
⚠️ This page may combine multiple inventors who share the name “MIYANAGA KOICHI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM CO LTD
23 patentsUS7754960B2Jul 13, 2010
Electronic equipment synchronously controlling light emission from light emitting devices and audio control
ROHM CO LTD21 citations92
US7423626B2Sep 9, 2008
Light-emission control circuit
ROHM CO LTD19 citations92
US7391406B2Jun 24, 2008
Light emission control circuit uniformly and non-uniformly controlling a plurality of light-emitting elements
ROHM CO LTD31 citations92
US6897638B2May 24, 2005
Stabilized power supply unit having a current limiting function
ROHM CO LTD35 citations92
US6822428B2Nov 23, 2004
Stabilized power supply unit having a current limiting function
ROHM CO LTD24 citations92
US7230474B2Jun 12, 2007
Current drive circuit reducing VDS dependency
ROHM CO LTD11 citations84
US9583952B2Feb 28, 2017
Shunt circuit, charging system and integrated circuit
ROHM CO LTD3 citations73
US8362748B2Jan 29, 2013
Voltage comparison circuit
ROHM CO LTD6 citations73
US10075070B2Sep 11, 2018
Step-down DC/DC converter
ROHM CO LTD2 citations69
US9768687B2Sep 19, 2017
Step-down DC/DC converter
ROHM CO LTD3 citations69
US7479822B2Jan 20, 2009
Current drive circuit reducing VDS dependency
ROHM CO LTD1 citations63
US7385642B2Jun 10, 2008
Camera portable telephone including LEDs used for both a camera flash and call notification of an incoming call
ROHM CO LTD6 citations63
US7372322B2May 13, 2008
Current drive circuit reducing VDS dependency
ROHM CO LTD2 citations63
US7321257B2Jan 22, 2008
Semiconductor device capable of detecting an open bonding wire using weak current
ROHM CO LTD4 citations63
US7009830B2Mar 7, 2006
Semiconductor integrated circuit device
ROHM CO LTD4 citations63
US6687107B2Feb 3, 2004
Semiconductor integrated circuit device
ROHM CO LTD3 citations63
US8350408B2Jan 8, 2013
Power management circuit
ROHM CO LTD2 citations62
US7542182B2Jun 2, 2009
Image pickup apparatus with light emission control adapted for light-receiving characteristics
ROHM CO LTD2 citations62
US11463085B2Oct 4, 2022
Semiconductor integrated circuit
ROHM CO LTD0 citations52
US9529054B2Dec 27, 2016
Detecting disconnection fault in device monitoring circuit connected in multiple stages for battery cells connected in series
ROHM CO LTD0 citations52
US9484773B2Nov 1, 2016
Energy harvesting apparatus and energy harvesting system
ROHM CO LTD1 citations52
US12556091B2Feb 17, 2026
Buck DC/DC converter and controller circuit of buck DC/DC converter
ROHM CO LTD0 citations47
US9368980B2Jun 14, 2016
Battery control circuit
ROHM CO LTD0 citations41