Inventor · disambiguated record
Katsuji Kimura
Also filed as: KIMURA KATSUJI
124 granted patents·24 pending applications·2,192 citations·filing 1983–2024
99Inventor score
Files withNEC CORP85NEC ELECTRONICS CORP32SONY SEMICONDUCTOR SOLUTIONS CORP24SHARP KK5NEC ELECTRONICS COPORATION1
Top patents by PatentIndex Score
148 records- 0197US4641366APortable radio communication apparatus comprising an antenna member for a broad-band signalNEC CORP·Filed 1985·Granted Feb 3, 1987·176 cites·7 claims
- 0296US5373226AConstant voltage circuit formed of FETs and reference voltage generating circuit to be used thereforNEC CORP·Filed 1992·Granted Dec 13, 1994·97 cites·36 claims
- 0393US5357149ATemperature sensor circuit and constant-current circuitNEC CORP·Filed 1992·Granted Oct 18, 1994·61 cites·9 claims
- 0489US5604427ACurrent reference circuit using PTAT and inverse PTAT subcircuitsNEC CORP·Filed 1995·Granted Feb 18, 1997·59 cites·18 claims
- 0589US5481224ADifferential amplifier circuit having a driver with square-law characteristicNEC CORP·Filed 1994·Granted Jan 2, 1996·50 cites·20 claims
- 0689US4709404ABattery-powered radio communication apparatus capable of prolonging the communicable state thereofNEC CORP·Filed 1985·Granted Nov 24, 1987·51 cites·12 claims
- 0787US7429854B2CMOS current mirror circuit and reference current/voltage circuitNEC ELECTRONICS CORP·Filed 2005·Granted Sep 30, 2008·17 cites·18 claims
- 0887US5523717AOperational transconductance amplifier and Bi-MOS multiplierNEC CORP·Filed 1994·Granted Jun 4, 1996·43 cites·12 claims
- 0985US7173481B2CMOS reference voltage circuitNEC ELECTRONICS CORP·Filed 2005·Granted Feb 6, 2007·13 cites·7 claims
- 1082US7164439B2Flicker correction apparatus and flicker correction method, and recording medium storing flicker correction programSHARP KK·Filed 2002·Granted Jan 16, 2007·28 cites·11 claims
- 1182US5583456ADifferentially coupled AND/NAND and XOR/XNOR circuitryNEC CORP·Filed 1995·Granted Dec 10, 1996·41 cites·6 claims
- 1282US5512855AConstant-current circuit operating in saturation regionNEC CORP·Filed 1994·Granted Apr 30, 1996·41 cites·14 claims
- 1382US5381113ADifferential amplifier circuit using quadritail circuitNEC CORP·Filed 1993·Granted Jan 10, 1995·34 cites·16 claims
- 1481US7180364B2Filter apparatus including slave gm-C filter with frequency characteristics automatically tuned by master circuitNEC ELECTRONICS CORP·Filed 2005·Granted Feb 20, 2007·12 cites·16 claims
- 1581US6657486B2MOS differential amplifier circuit having a wide linear input voltage rangeNEC ELECTRONICS CORP·Filed 2002·Granted Dec 2, 2003·21 cites·5 claims
- 1681US6528979B2Reference current circuit and reference voltage circuitNEC CORP·Filed 2002·Granted Mar 4, 2003·44 cites·21 claims
- 1780US7304466B1Voltage reference circuit compensated for non-linearity in temperature characteristic of diodeNEC ELECTRONICS CORP·Filed 2007·Granted Dec 4, 2007·12 cites·20 claims
- 1880US5910749ACurrent reference circuit with substantially no temperature dependenceNEC CORP·Filed 1996·Granted Jun 8, 1999·37 cites·18 claims
- 1980US5500623ADifferential amplifier circuit with almost linear transconductanceNEC CORP·Filed 1993·Granted Mar 19, 1996·33 cites·14 claims
- 2080US5432432AReference voltage generating circuit with temperature stability for use in CMOS integrated circuitsNEC CORP·Filed 1994·Granted Jul 11, 1995·37 cites·14 claims
- 2178US7511568B2Reference voltage circuitNEC ELECTRONICS CORP·Filed 2006·Granted Mar 31, 2009·11 cites·22 claims
- 2278US5990727ACurrent reference circuit having both a PTAT subcircuit and an inverse PTAT subcircuitNEC CORP·Filed 1997·Granted Nov 23, 1999·32 cites·7 claims
- 2378US5107150AAnalog multiplierNEC CORP·Filed 1991·Granted Apr 21, 1992·47 cites·4 claims
- 2477US4680553AIntermediate frequency amplifier with signal strength detection circuitNEC CORP·Filed 1985·Granted Jul 14, 1987·26 cites·11 claims
- 2576US11785321B2Imaging deviceSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2019·Granted Oct 10, 2023·2 cites·11 claims
- 2676US6900689B2CMOS reference voltage circuitNEC ELECTRONICS CORP·Filed 2002·Granted May 31, 2005·20 cites·20 claims
- 2776US5909136AQuarter-square multiplier based on the dynamic bias current techniqueNEC CORP·Filed 1997·Granted Jun 1, 1999·39 cites·9 claims
- 2875US6111463AOperational transconductance amplifier and multiplierNEC CORP·Filed 1997·Granted Aug 29, 2000·37 cites·10 claims
- 2975US5602509AMOS operational transconductance amplifier using an adaptively-biased differential pairNEC CORP·Filed 1995·Granted Feb 11, 1997·38 cites·9 claims
- 3075US5057717ALogarithmic amplifier circuitNEC CORP·Filed 1991·Granted Oct 15, 1991·39 cites·8 claims
- 3173US11296133B2Imaging apparatus and electronic deviceSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2018·Granted Apr 5, 2022·1 cites·17 claims
- 3273US5506537ALogarithmic amplifying circuit based on the bias-offset techniqueNEC CORP·Filed 1994·Granted Apr 9, 1996·35 cites·25 claims
- 3372US5485119AMOS transconductance amplifier having squaring circuit for LSI implementationNEC CORP·Filed 1995·Granted Jan 16, 1996·33 cites·9 claims
- 3472US5438296AMultiplier and squaring circuit to be used for the sameNEC CORP·Filed 1994·Granted Aug 1, 1995·35 cites·28 claims
- 3570US6867650B2Variable gain amplifier circuitNEC ELECTRONICS CORP·Filed 2002·Granted Mar 15, 2005·12 cites·32 claims
- 3670US5578965ATunable operational transconductance amplifier and two-quadrant multiplier employing MOS transistorsNEC CORP·Filed 1995·Granted Nov 26, 1996·38 cites·21 claims
- 3770US5521542ALogarithmic amplifier circuit using triple-tail cellsNEC CORP·Filed 1995·Granted May 28, 1996·30 cites·16 claims
- 3869US6657485B2Linear voltage subtractor/adder circuit and MOS differential amplifier circuit thereforNEC ELECTRONICS CORP·Filed 2002·Granted Dec 2, 2003·12 cites·7 claims
- 3969US5552734ALocal oscillator frequency multiplier and mixing circuit comprising a squaring circuitNEC CORP·Filed 1994·Granted Sep 3, 1996·31 cites·23 claims
- 4068US11330209B2Imaging device and electronic device enabled to control position of lensSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2019·Granted May 10, 2022·1 cites·11 claims
- 4168US7668368B2Image processing apparatus, camera apparatus, image output apparatus, image processing method, color correction processing program and computer readable recording mediumSHARP KK·Filed 2005·Granted Feb 23, 2010·2 cites·33 claims
- 4268US5815039ALow-voltage bipolar OTA having a linearity in transconductance over a wide input voltage rangeNEC CORP·Filed 1996·Granted Sep 29, 1998·26 cites·5 claims
- 4367US4794342AIntermediate frequency amplification circuit capable of detecting a field strength with low electric powerNEC CORP·Filed 1987·Granted Dec 27, 1988·23 cites·4 claims
- 4465US5883539ADifferential circuit and multiplierNEC CORP·Filed 1996·Granted Mar 16, 1999·23 cites·18 claims
- 4565US5581211ASquaring circuit capable of widening a range of an input voltageNEC CORP·Filed 1995·Granted Dec 3, 1996·31 cites·17 claims
- 4665US5440224AReference voltage generating circuit formed of bipolar transistorsNEC CORP·Filed 1994·Granted Aug 8, 1995·22 cites·3 claims
- 4764US12040338B2Imaging apparatusSONY SEMICONDUCTOR SOLUTIONS CORP·Filed 2019·Granted Jul 16, 2024·0 cites·10 claims
- 4864US7443214B2PLL circuit and frequency setting circuit using the sameNEC ELECTRONICS CORP·Filed 2005·Granted Oct 28, 2008·5 cites·7 claims
- 4963US7688143B2Variable gain circuitNEC ELECTRONICS CORP·Filed 2008·Granted Mar 30, 2010·4 cites·20 claims
- 5063US7459963B2Filter apparatus including differential slave gm-C filter with frequency characteristics automatically tuned by master circuitNEC ELECTRONICS CORP·Filed 2005·Granted Dec 2, 2008·5 cites·20 claims
Showing the top 50 of 148 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →