Inventor · disambiguated record
Toshio Maejima
Also filed as: MAEJIMA TOSHIO
27 granted patents·3 pending applications·487 citations·filing 1995–2013
97Inventor score
Top patents by PatentIndex Score
30 records- 0196US6018262ACMOS differential amplifier for a delta sigma modulator applicable for an analog-to-digital converterYAMAHA CORP·Filed 1998·Granted Jan 25, 2000·137 cites·13 claims
- 0295US7482870B2Class D amplifierYAMAHA CORP·Filed 2006·Granted Jan 27, 2009·29 cites·17 claims
- 0386US7167046B2Class-D amplifierYAMAHA CORP·Filed 2004·Granted Jan 23, 2007·34 cites·10 claims
- 0479US5888080ALow insertion pressure connectorYAZAKI CORP·Filed 1997·Granted Mar 30, 1999·38 cites·3 claims
- 0578US5973536ASwitched capacitor filterYAMAHA CORP·Filed 1996·Granted Oct 26, 1999·44 cites·6 claims
- 0674US8299853B2Class D amplifierMAEJIMA TOSHIO·Filed 2011·Granted Oct 30, 2012·5 cites·41 claims
- 0773US6791392B2Circuit for shifting an input signal level including compensation for supply voltage variationYAMAHA CORP·Filed 2002·Granted Sep 14, 2004·17 cites·9 claims
- 0872US8289075B2Class-D amplifierKISHII TATSUYA·Filed 2010·Granted Oct 16, 2012·6 cites·7 claims
- 0971US7183840B2Class-D amplifierYAMAHA CORP·Filed 2004·Granted Feb 27, 2007·16 cites·6 claims
- 1070US9000824B2Offset cancel circuitYAMAHA CORP·Filed 2013·Granted Apr 7, 2015·3 cites·5 claims
- 1170US5757299AAnalog-Digital converter using delta sigma modulation digital filtering, and gain-scalingYAMAHA CORP·Filed 1995·Granted May 26, 1998·27 cites·7 claims
- 1266US6956431B2Pulse width modulation amplifierYAMAHA CORP·Filed 2004·Granted Oct 18, 2005·14 cites·8 claims
- 1364US6061279ADelay circuit for analog signalsYAMAHA CORP·Filed 1999·Granted May 9, 2000·23 cites·14 claims
- 1462US5940019ADelta-sigma A/D converterYAMAHA CORP·Filed 1997·Granted Aug 17, 1999·22 cites·11 claims
- 1562US5696509ADigital to analog converter using capacitors and switches for charge distributionYAMAHA CORP·Filed 1996·Granted Dec 9, 1997·23 cites·9 claims
- 1661US7215191B2Device for amplitude adjustment and rectification made with MOS technologyYAMAHA CORP·Filed 2005·Granted May 8, 2007·4 cites·3 claims
- 1757US8653803B2Voltage generation circuitKAWAGISHI NORIHIRO·Filed 2011·Granted Feb 18, 2014·1 cites·5 claims
- 1857US8054129B2Class D amplifierYAMAHA CORP·Filed 2008·Granted Nov 8, 2011·2 cites·22 claims
- 1957US6542033B2Differential amplifier circuit requiring small amount of bias current in a non-signal modeYAMAHA CORP·Filed 2000·Granted Apr 1, 2003·9 cites·4 claims
- 2055US9207255B2Signal processing device and amplifierYAMAHA CORP·Filed 2013·Granted Dec 8, 2015·0 cites·7 claims
- 2153US7671673B2Class-D amplifierYAMAHA CORP·Filed 2007·Granted Mar 2, 2010·2 cites·2 claims
- 2253US5699017AAutomatic gain control circuitYAMAHA CORP·Filed 1996·Granted Dec 16, 1997·15 cites·2 claims
- 2352US7449948B2AmplifierYAMAHA CORP·Filed 2007·Granted Nov 11, 2008·2 cites·10 claims
- 2446US2012068676A1Voltage generation circuitKAWAGISHI NORIHIRO·Filed 2011·Application pending·0 cites
- 2541US6788792B1Device for amplitude adjustment and rectification made with MOS technologyYAMAHA CORP·Filed 1999·Granted Sep 7, 2004·6 cites·18 claims
- 2641US2004052101A1Device for amplitude adjustment and rectification made with MOS technologyYAMAHA CORP·Filed 2003·Application pending·0 cites
- 2740US6696877B2Level shift circuitYAMAHA CORP·Filed 2002·Granted Feb 24, 2004·2 cites·4 claims
- 2838US2009115388A1DC/DC converterYAMAHA CORP·Filed 2008·Application pending·0 cites
- 2937US8232832B2Voltage adder circuit and D/A converter circuitTSUJI NOBUAKI·Filed 2010·Granted Jul 31, 2012·0 cites·4 claims
- 3037US5949360AAnalog/digital converter utilizing time-shared integrating circuitryYAMAHA CORP·Filed 1996·Granted Sep 7, 1999·6 cites·6 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →