Inventor · disambiguated record
Nobutaka Kitagawa
Also filed as: KITAGAWA NOBUTAKA
25 granted patents·3 pending applications·422 citations·filing 1987–2016
96Inventor score
Top patents by PatentIndex Score
28 records- 0189US6836170B2Impedance trimming circuitTOSHIBA KK·Filed 2003·Granted Dec 28, 2004·57 cites·19 claims
- 0284US5731774ADigital-to-analog converterTOSHIBA KK·Filed 1996·Granted Mar 24, 1998·61 cites·20 claims
- 0383US5057702ADuty radio control circuit apparatusTOSHIBA KK·Filed 1989·Granted Oct 15, 1991·34 cites·16 claims
- 0479US7106562B2Protection circuit section for semiconductor circuit systemTOSHIBA KK·Filed 2003·Granted Sep 12, 2006·26 cites·13 claims
- 0572US5714953AComposite digital-to-analog converterTOSHIBA KK·Filed 1996·Granted Feb 3, 1998·35 cites·21 claims
- 0671US6147525AFrequency multiplier circuit operable with an external reference clock signal having a frequency in a wide rangeTOSHIBA KK·Filed 1998·Granted Nov 14, 2000·35 cites·15 claims
- 0769US7307822B2Semiconductor integrated circuit apparatusTOSHIBA KK·Filed 2004·Granted Dec 11, 2007·14 cites·15 claims
- 0868US4972378ANonvolatile memory circuit device performing stable operation in wide range of power source voltage levelTOSHIBA KK·Filed 1989·Granted Nov 20, 1990·23 cites·14 claims
- 0966US5001668ANonvolatile memory circuit device with low power consumption and wide operating voltage rangeTOSHIBA KK·Filed 1989·Granted Mar 19, 1991·21 cites·8 claims
- 1060US6713817B2Semiconductor integrated circuit systemTOSHIBA KK·Filed 2001·Granted Mar 30, 2004·9 cites·20 claims
- 1159US4792749APower source voltage detector device incorporated in LSI circuitTOSHIBA KK·Filed 1987·Granted Dec 20, 1988·19 cites·5 claims
- 1258US7072157B2Electrostatic discharge protection circuit deviceTOSHIBA KK·Filed 2003·Granted Jul 4, 2006·8 cites·31 claims
- 1356US5229968ANonvolatile semiconductor memory wherein dummy cells are used for generating a potential for detecting dataTOSHIBA KK·Filed 1990·Granted Jul 20, 1993·18 cites·2 claims
- 1448US9690319B2Semiconductor deviceTOSHIBA KK·Filed 2016·Granted Jun 27, 2017·0 cites·19 claims
- 1548US6989980B2Semiconductor device having a protection circuitTOSHIBA KK·Filed 2004·Granted Jan 24, 2006·3 cites·2 claims
- 1645US7525778B2Semiconductor integrated circuit having protection elements for preventing MOS transistors from plasma damageTOSHIBA KK·Filed 2004·Granted Apr 28, 2009·2 cites·11 claims
- 1744US7218150B2Semiconductor integrated circuit device and differential small-amplitude data transmission apparatusTOSHIBA KK·Filed 2004·Granted May 15, 2007·4 cites·11 claims
- 1844US6166671AAnalog-to-digital converting circuit apparatus and coverting method thereofTOSHIBA KK·Filed 1998·Granted Dec 26, 2000·10 cites·4 claims
- 1944US6097228AReset input circuit for an MCUTOSHIBA KK·Filed 1998·Granted Aug 1, 2000·18 cites·17 claims
- 2040US6437721B1Semiconductor integrated circuit apparatus for performing DA/AD conversion with high accuracy using a potential distribution of a string resistorTOSHIBA KK·Filed 2000·Granted Aug 20, 2002·2 cites·11 claims
- 2137US5239194ASemiconductor device having increased electrostatic breakdown voltageTOSHIBA KK·Filed 1991·Granted Aug 24, 1993·6 cites·10 claims
- 2236US5420817ASemiconductor integrated circuit device comprising memory area in which structurally different memory cells are includedTOSHIBA KK·Filed 1993·Granted May 30, 1995·6 cites·5 claims
- 2336US5016263ASample-hold circuit with outputs taken between gates of dynamic shift register to avoid skew from unequal interstage connection lengthsTOSHIBA KK·Filed 1989·Granted May 14, 1991·6 cites·8 claims
- 2435US2005099744A1Semiconductor integrated circuitFiled 2004·Application pending·0 cites
- 2535US2004240130A1Semiconductor device having protection device for protecting internal deviceFiled 2004·Application pending·0 cites
- 2634US2013141825A1Esd protection circuitKITAGAWA NOBUTAKA·Filed 2012·Application pending·0 cites
- 2730US4783620AConstant voltage circuit having an operation-stop functionTOSHIBA KK·Filed 1987·Granted Nov 8, 1988·5 cites·10 claims
- 2822US5381491ABit position encoder improved in operating speedTOSHIBA KK·Filed 1992·Granted Jan 10, 1995·0 cites·7 claims
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