Inventor · disambiguated record
Kunihiko Gotoh
Also filed as: GOTOH KUNIHIKO
54 granted patents·5 pending applications·1,345 citations·filing 1984–2013
99Inventor score
Top patents by PatentIndex Score
59 records- 0197USD482761SPipe coupling plugNITTO KOHKI CO·Filed 2002·Granted Nov 25, 2003·94 cites·1 claims
- 0297US5861771ARegulator circuit and semiconductor integrated circuit device having the sameFUJITSU LTD·Filed 1997·Granted Jan 19, 1999·124 cites·24 claims
- 0395USD483096SPipe coupling socketFiled 2002·Granted Dec 2, 2003·66 cites·1 claims
- 0492US7589587B2Feedback amplifier circuit operable at low voltage by utilizing switched operational amplifier and chopper modulatorSEMICONDUCTOR TECH ACAD RES CT·Filed 2007·Granted Sep 15, 2009·29 cites·6 claims
- 0589US4912425AOperational amplifier circuit having stable operating pointFUJITSU LTD·Filed 1988·Granted Mar 27, 1990·39 cites·10 claims
- 0689US4536949AMethod for fabricating an integrated circuit with multi-layer wiring having opening for fuseFUJITSU LTD·Filed 1984·Granted Aug 27, 1985·78 cites·12 claims
- 0788US5523721ADigitally controlled variable gain circuitFUJITSU LTD·Filed 1995·Granted Jun 4, 1996·76 cites·30 claims
- 0888US5059890AConstant current source circuitFUJITSU LTD·Filed 1989·Granted Oct 22, 1991·51 cites·19 claims
- 0987US6998917B2Common-mode feedback circuit and differential operational amplifier circuit having stable operation and low power consumptionFUJITSU LTD·Filed 2004·Granted Feb 14, 2006·38 cites·18 claims
- 1087US5261677ASeal ringNITTO KOHKI CO·Filed 1992·Granted Nov 16, 1993·57 cites·5 claims
- 1184US7271757B2Encoder circuit and A/D conversion circuitFUJITSU LTD·Filed 2005·Granted Sep 18, 2007·13 cites·2 claims
- 1282US5351030AVariable attenuator for attenuating gain of analog signal in accordance with digital signalFUJITSU LTD·Filed 1993·Granted Sep 27, 1994·34 cites·9 claims
- 1381US5585795AD/A converter including output buffer having a controllable offset voltageFUJITSU LTD·Filed 1994·Granted Dec 17, 1996·44 cites·19 claims
- 1481US4730129AIntegrated circuit having fuse circuitFUJITSU LTD·Filed 1985·Granted Mar 8, 1988·47 cites·12 claims
- 1580US6646860B2Capacitor and method for fabricating the sameFUJITSU LTD·Filed 2002·Granted Nov 11, 2003·32 cites·8 claims
- 1678US6342818B1PLL having switching circuit for maintaining lock during loss of input signalFUJITSU LTD·Filed 1999·Granted Jan 29, 2002·43 cites·13 claims
- 1776US6211746B1Integration method and integration circuit offering improved signal-to-noise ratio, and voltage-controlled oscillator and frequency-voltage converter employing integration circuitFUJITSU LTD·Filed 1999·Granted Apr 3, 2001·29 cites·18 claims
- 1875US5252975ADigital-to-analog converter having resistor networksFUJITSU LTD·Filed 1992·Granted Oct 12, 1993·35 cites·16 claims
- 1975US4760376AElectronic conversion circuitFUJITSU LTD·Filed 1986·Granted Jul 26, 1988·27 cites·9 claims
- 2074US7732945B2Rectifier circuitFUJITSU LTD·Filed 2005·Granted Jun 8, 2010·11 cites·5 claims
- 2173US5955925ADigital AGC circuitFUJITSU LTD·Filed 1997·Granted Sep 21, 1999·27 cites·4 claims
- 2273US4697154ASemiconductor integrated circuit having improved load drive characteristicsFUJITSU LTD·Filed 1986·Granted Sep 29, 1987·21 cites·4 claims
- 2371US5319345AVariable resistorFUJITSU LTD·Filed 1992·Granted Jun 7, 1994·23 cites·9 claims
- 2469US5633939ACompander circuitFUJITSU LTD·Filed 1994·Granted May 27, 1997·25 cites·30 claims
- 2569US4835417AComparator circuit having improved output characteristicsFUJITSU LTD·Filed 1987·Granted May 30, 1989·18 cites·5 claims
- 2668US7907076B2Differential amplifier circuit amplifying differential signals with selectively switching between differential signals and AD converter apparatusSEMICONDUCTOR TECH ACAD RES CT·Filed 2009·Granted Mar 15, 2011·6 cites·9 claims
- 2768US7301399B2Class AB CMOS output circuit equipped with CMOS circuit operating by predetermined operating currentSEMICONDUCTOR TECH ACAD RES CT·Filed 2005·Granted Nov 27, 2007·6 cites·6 claims
- 2867US6936889B2Semiconductor device and method for testing semiconductor deviceFUJITSU LTD·Filed 2004·Granted Aug 30, 2005·12 cites·2 claims
- 2965US7068548B2Semiconductor integrated circuit with noise reduction circuitFUJITSU LTD·Filed 2004·Granted Jun 27, 2006·12 cites·10 claims
- 3064US4808852AInput circuit having level shiftFUJITSU LTD·Filed 1987·Granted Feb 28, 1989·15 cites·4 claims
- 3161US5351860ACoupling for breaking a seal film of a dispensing opening for a fluid-filled containerNITTO KOHKI CO·Filed 1992·Granted Oct 4, 1994·20 cites·6 claims
- 3261US4697140ASemiconductor integrated circuit having a test circuit for testing an internal circuitFUJITSU LTD·Filed 1986·Granted Sep 29, 1987·23 cites·6 claims
- 3358US6528817B1Semiconductor device and method for testing semiconductor deviceFUJITSU LTD·Filed 2000·Granted Mar 4, 2003·8 cites·8 claims
- 3456US5684874ARingtrip judging circuitFUJITSU LTD·Filed 1995·Granted Nov 4, 1997·31 cites·10 claims
- 3555US7642840B2Reference voltage generator circuitFUJITSU LTD·Filed 2007·Granted Jan 5, 2010·3 cites·5 claims
- 3655US5793257AOscillator having switching capacitors and phase-locked loop employing sameFUJITSU LTD·Filed 1997·Granted Aug 11, 1998·16 cites·12 claims
- 3754US6064243ACurrent switch and PLL in which it is usedFUJITSU LTD·Filed 1998·Granted May 16, 2000·16 cites·7 claims
- 3853US8629797B2Switched capacitor circuit and stage circuit for AD converterGOTOH KUNIHIKO·Filed 2012·Granted Jan 14, 2014·2 cites·20 claims
- 3953US6100766ACorrection circuit controlling sensitivities of an oscillator circuit and electronic device using the sameFUJITSU LTD·Filed 1997·Granted Aug 8, 2000·17 cites·12 claims
- 4053US4914400ADifferential amplifier circuit improved to shorten a circuit recovery time thereofFUJITSU LTD·Filed 1989·Granted Apr 3, 1990·10 cites·11 claims
- 4151US4743885ACyclic type D/A converter having error detection and correction systemFUJITSU LTD·Filed 1987·Granted May 10, 1988·11 cites·10 claims
- 4248US7855596B2Demodulation circuitFUJITSU LTD·Filed 2008·Granted Dec 21, 2010·0 cites·8 claims
- 4348US6307427B1Filter characteristic regulating apparatus and regulating method thereforFUJITSU LTD·Filed 1999·Granted Oct 23, 2001·8 cites·12 claims
- 4447US7880532B2Reference voltage generating circuitFUJITSU LTD·Filed 2009·Granted Feb 1, 2011·1 cites·20 claims
- 4546US5579214AHalf-wave rectifier circuitFUJITSU LTD·Filed 1994·Granted Nov 26, 1996·15 cites·11 claims
- 4645US6822599B2Integrated circuit and A/D conversion circuitFUJITSU LTD·Filed 2003·Granted Nov 23, 2004·3 cites·19 claims
- 4744US2007045652A1Semiconductor deviceFUJITSU LTD·Filed 2006·Application pending·0 cites
- 4843US6433407B2Semiconductor integrated circuitFUJITSU LTD·Filed 2001·Granted Aug 13, 2002·5 cites·32 claims
- 4943US5155385ASemiconductor integrated circuit device having a bias supply currentFUJITSU LTD·Filed 1991·Granted Oct 13, 1992·13 cites·13 claims
- 5043US2005280509A1Reader device, its transmission method, and tagFUJITSU LTD·Filed 2005·Application pending·0 cites
Showing the top 50 of 59 patent records by PatentIndex Score.
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