Inventor
MAEJIMA TOSHIO
JP27 patents
⚠️ This page may combine multiple inventors who share the name “MAEJIMA TOSHIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
YAMAHA CORP
22 patentsUS6018262AJan 25, 2000
CMOS differential amplifier for a delta sigma modulator applicable for an analog-to-digital converter
YAMAHA CORP137 citations99
US7482870B2Jan 27, 2009
Class D amplifier
YAMAHA CORP29 citations92
US7167046B2Jan 23, 2007
Class-D amplifier
YAMAHA CORP34 citations92
US6061279AMay 9, 2000
Delay circuit for analog signals
YAMAHA CORP23 citations92
US5973536AOct 26, 1999
Switched capacitor filter
YAMAHA CORP44 citations92
US5940019AAug 17, 1999
Delta-sigma A/D converter
YAMAHA CORP22 citations92
US5757299AMay 26, 1998
Analog-Digital converter using delta sigma modulation digital filtering, and gain-scaling
YAMAHA CORP27 citations92
US5696509ADec 9, 1997
Digital to analog converter using capacitors and switches for charge distribution
YAMAHA CORP23 citations92
US7183840B2Feb 27, 2007
Class-D amplifier
YAMAHA CORP16 citations84
US6956431B2Oct 18, 2005
Pulse width modulation amplifier
YAMAHA CORP14 citations84
US6791392B2Sep 14, 2004
Circuit for shifting an input signal level including compensation for supply voltage variation
YAMAHA CORP17 citations83
US6542033B2Apr 1, 2003
Differential amplifier circuit requiring small amount of bias current in a non-signal mode
YAMAHA CORP9 citations74
US5699017ADec 16, 1997
Automatic gain control circuit
YAMAHA CORP15 citations74
US8054129B2Nov 8, 2011
Class D amplifier
YAMAHA CORP2 citations63
US7671673B2Mar 2, 2010
Class-D amplifier
YAMAHA CORP2 citations63
US7449948B2Nov 11, 2008
Amplifier
YAMAHA CORP2 citations63
US7215191B2May 8, 2007
Device for amplitude adjustment and rectification made with MOS technology
YAMAHA CORP4 citations63
US6788792B1Sep 7, 2004
Device for amplitude adjustment and rectification made with MOS technology
YAMAHA CORP6 citations63
US5949360ASep 7, 1999
Analog/digital converter utilizing time-shared integrating circuitry
YAMAHA CORP6 citations63
US6696877B2Feb 24, 2004
Level shift circuit
YAMAHA CORP2 citations62
US9000824B2Apr 7, 2015
Offset cancel circuit
YAMAHA CORP3 citations61
US9207255B2Dec 8, 2015
Signal processing device and amplifier
YAMAHA CORP0 citations52