Inventor
SHIMADA YUJI
JP39 patents
⚠️ This page may combine multiple inventors who share the name “SHIMADA YUJI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
ROHM CO LTD
10 patentsUS6992647B2Jan 31, 2006
Organic EL drive circuit and organic EL display device using the same
ROHM CO LTD22 citations92
US11092633B2Aug 17, 2021
Capacitance detection circuit, semiconductor device, input device and electronic apparatus including the same, and method of detecting capacitance
ROHM CO LTD3 citations73
US7471050B2Dec 30, 2008
Organic EL drive circuit and organic EL display device
ROHM CO LTD4 citations63
US11054949B2Jul 6, 2021
Touch detection circuit, input device and electronic apparatus
ROHM CO LTD1 citations62
US10635237B2Apr 28, 2020
Control circuit and control method for touch panel, and touch-type input device and electronic device using the same
ROHM CO LTD1 citations62
US11199932B2Dec 14, 2021
Touch detection circuit with detection of water
ROHM CO LTD1 citations61
US11567603B2Jan 31, 2023
Capacitance detection circuit and input device
ROHM CO LTD1 citations53
US11644920B2May 9, 2023
Capacitance detection circuit and input device
ROHM CO LTD0 citations52
US9652104B2May 16, 2017
Capacitance voltage conversion circuit, input apparatus using the same, electronic instrument, and capacitance voltage conversion method
ROHM CO LTD0 citations48
US7629908B2Dec 8, 2009
D/A conversion circuit, organic EL drive circuit and organic EL display device
ROHM CO LTD0 citations38
FUJITSU LTD
8 patentsUS7756422B2Jul 13, 2010
Method for measuring optical characteristics and system thereof
FUJITSU LTD15 citations84
US6987903B2Jan 17, 2006
Optical transmission network, optical transmission apparatus, dispersion compensator arrangement calculation apparatus and dispersion compensator arrangement calculation method
FUJITSU LTD7 citations74
US7756416B2Jul 13, 2010
Optical communication node and optical network system
FUJITSU LTD6 citations63
US7580631B2Aug 25, 2009
Optical transmission device for controlling optical level of transmission signal in optical transmission system
FUJITSU LTD6 citations63
US7394951B2Jul 1, 2008
Optical signal level control apparatus
FUJITSU LTD2 citations63
US7286758B2Oct 23, 2007
Method for switching transmission route, and optical transmission device
FUJITSU LTD6 citations63
US7551828B2Jun 23, 2009
Optical transmission device for controlling optical level of transmission signal in optical transmission system
FUJITSU LTD5 citations60
US9866345B2Jan 9, 2018
Device, system and method for transmitting wavelength division multiplexed optical signal
FUJITSU LTD0 citations33