Inventor
DAIO KATSUHISA
JP15 patents
⚠️ This page may combine multiple inventors who share the name “DAIO KATSUHISA”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SONY CORP
9 patentsUS6597650B2Jul 22, 2003
Nonlinearity compensation circuit and method, control circuit and method for nonlinearity compenstation circuit and recording and/or playback apparatus employing the same
SONY CORP28 citations91
US7265624B2Sep 4, 2007
Amplifier circuit
SONY CORP9 citations69
US6624676B2Sep 23, 2003
Asymmetry detection circuit and detection method of same
SONY CORP6 citations61
US7991032B2Aug 2, 2011
Laser drive
SONY CORP2 citations58
US9136670B2Sep 15, 2015
Correction circuit, drive circuit, light emission unit, and method of correcting current pulse waveform
SONY CORP0 citations51
US7375584B2May 20, 2008
Gain adjustment method, gain adjustment circuit, and optical disc device having same gain adjustment circuit
SONY CORP1 citations50
US7459971B2Dec 2, 2008
Amplifier circuit
SONY CORP0 citations48
US8976827B2Mar 10, 2015
Driving device and light-emitting unit
SONY CORP0 citations40
US7864652B2Jan 4, 2011
Gain control circuit and optical recording and reproducing device using thereof
SONY CORP0 citations40
SONY SEMICONDUCTOR SOLUTIONS CORP
4 patentsUS11973314B2Apr 30, 2024
Light-source drive device and light-emitting device
SONY SEMICONDUCTOR SOLUTIONS CORP0 citations56
US11901700B2Feb 13, 2024
Driving device, driving method, and light-emitting unit
SONY SEMICONDUCTOR SOLUTIONS CORP1 citations55
US12374863B2Jul 29, 2025
Light-emission driving device and light-emitting device
SONY SEMICONDUCTOR SOLUTIONS CORP0 citations47
US12149046B2Nov 19, 2024
Light emission drive circuit and light emission device
SONY SEMICONDUCTOR SOLUTIONS CORP0 citations44
MAEDA OSAMU
2 patentsUS8619827B2Dec 31, 2013
Correction circuit, drive circuit, light emitting device, and method of correcting current pulse waveform
MAEDA OSAMU7 citations81
US8829813B2Sep 9, 2014
Correction circuit, drive circuit, light-emitting device and correction method of current pulse waveform
MAEDA OSAMU0 citations50