Inventor · disambiguated record
Hajime Shibata
Also filed as: SHIBATA HAJIME
49 granted patents·2 pending applications·513 citations·filing 1990–2022
98Inventor score
Files withANALOG DEVICES INTERNATIONAL UNLIMITED CO13ANALOG DEVICES GLOBAL9SHIBATA HAJIME8ANALOG DEVICES GLOBAL UNLIMITED CO5ANALOG DEVICES INC4
Top patents by PatentIndex Score
51 records- 0197US11128310B1Background duty cycle error measurement for RF DACANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2020·Granted Sep 21, 2021·10 cites·39 claims
- 0296US11218158B1Digital estimation of transfer functions in continuous-time analog-to-digital convertersANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2021·Granted Jan 4, 2022·17 cites·20 claims
- 0396US11063794B2Continuous-time sampler circuitsANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2020·Granted Jul 13, 2021·6 cites·20 claims
- 0496US10171102B1Oversampled continuous-time pipeline ADC with voltage-mode summationANALOG DEVICES GLOBAL UNLIMITED CO·Filed 2018·Granted Jan 1, 2019·20 cites·25 claims
- 0595US9843337B1Background flash offset calibration in continuous-time delta-sigma ADCSANALOG DEVICES GLOBAL·Filed 2017·Granted Dec 12, 2017·19 cites·20 claims
- 0695US8896475B2Continuous-time oversampling pipeline analog-to-digital converterSHIBATA HAJIME·Filed 2013·Granted Nov 25, 2014·24 cites·27 claims
- 0794US10965302B1Background static error measurement and timing skew error measurement for RF DACANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2019·Granted Mar 30, 2021·15 cites·35 claims
- 0894US9838031B2Dither injection for continuous-time MASH ADCSANALOG DEVICES GLOBAL·Filed 2016·Granted Dec 5, 2017·16 cites·20 claims
- 0994US9312840B2LC lattice delay line for high-speed ADC applicationsANALOG DEVICES TECHNOLOGY·Filed 2014·Granted Apr 12, 2016·23 cites·22 claims
- 1093US11563442B2Calibration of continuous-time residue generation systems for analog-to-digital convertersANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2021·Granted Jan 24, 2023·4 cites·20 claims
- 1193US11133814B1Continuous-time residue generation analog-to-digital converter arrangements with programmable analog delayANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2020·Granted Sep 28, 2021·4 cites·20 claims
- 1293US10432210B1Oversampled continuous-time pipeline ADC with digital signal reconstructionANALOG DEVICES GLOBAL UNLIMITED CO·Filed 2018·Granted Oct 1, 2019·16 cites·20 claims
- 1393US10181860B1Reducing residue signals in analog-to-digital convertersANALOG DEVICES GLOBAL UNLIMITED CO·Filed 2017·Granted Jan 15, 2019·12 cites·29 claims
- 1492US9768793B2Adaptive digital quantization noise cancellation filters for mash ADCsANALOG DEVICES GLOBAL·Filed 2016·Granted Sep 19, 2017·13 cites·20 claims
- 1592US5119840AUltrasonic oscillating device and ultrasonic washing apparatus using the sameKAIJO KENKI CO LTD·Filed 1990·Granted Jun 9, 1992·94 cites·9 claims
- 1690US9178529B2Multi-stage noise shaping analog-to-digital converterANALOG DEVICES TECHNOLOGY·Filed 2013·Granted Nov 3, 2015·14 cites·24 claims
- 1790US8638156B2Multi-output-resistance switch driver circuitsSHIBATA HAJIME·Filed 2011·Granted Jan 28, 2014·11 cites·23 claims
- 1889US11075643B2Background timing skew error measurement for RF DACANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2020·Granted Jul 27, 2021·3 cites·20 claims
- 1989US10187075B1Blocker tolerance in continuous-time residue generating analog-to-digital convertersANALOG DEVICES GLOBAL UNLIMITED CO·Filed 2018·Granted Jan 22, 2019·8 cites·20 claims
- 2088US11652491B2High-pass shaped dither in continuous-time residue generation systems for analog-to-digital convertersANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2021·Granted May 16, 2023·2 cites·20 claims
- 2187US9432045B2Continuous-time oversampling pipeline analog-to-digital converterANALOG DEVICES GLOBAL·Filed 2014·Granted Aug 30, 2016·8 cites·20 claims
- 2287US9203426B2Estimation of digital-to-analog converter static mismatch errorsANALOG DEVICES TECHNOLOGY·Filed 2014·Granted Dec 1, 2015·11 cites·25 claims
- 2385US9774344B2Continuous-time analog-to-digital converterANALOG DEVICES GLOBAL·Filed 2016·Granted Sep 26, 2017·5 cites·20 claims
- 2481US8102206B2Multi-path, multi-stage feed-forward operational amplifier circuitSHIBATA HAJIME·Filed 2009·Granted Jan 24, 2012·12 cites·31 claims
- 2581US7915959B2Multi-path, multi-oxide-thickness amplifier circuitANALOG DEVICES INC·Filed 2009·Granted Mar 29, 2011·10 cites·20 claims
- 2680US10924128B2VCO-based continuous-time pipelined ADCANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2019·Granted Feb 16, 2021·3 cites·36 claims
- 2780US8410962B2Active RC resonators with enhanced Q factorSHIBATA HAJIME·Filed 2011·Granted Apr 2, 2013·6 cites·16 claims
- 2880US7262726B2Quadrature bandpass ΔΣ converterANALOG DEVICES INC·Filed 2006·Granted Aug 28, 2007·12 cites·18 claims
- 2979US9793908B2Protection circuits for tunable resistor at continuous-time ADC inputANALOG DEVICES GLOBAL·Filed 2016·Granted Oct 17, 2017·4 cites·20 claims
- 3078US9762221B2RC lattice delayANALOG DEVICES GLOBAL·Filed 2016·Granted Sep 12, 2017·3 cites·20 claims
- 3177US9912144B2Embedded overload protection in delta-sigma analog-to-digital convertersANALOG DEVICES TECH·Filed 2014·Granted Mar 6, 2018·3 cites·20 claims
- 3277US8536939B2Cross-coupled multipath feedforward operational amplifiersSHIBATA HAJIME·Filed 2011·Granted Sep 17, 2013·6 cites·32 claims
- 3373US9054731B2Integrator output swing reductionANALOG DEVICES TECHNOLOGY·Filed 2013·Granted Jun 9, 2015·5 cites·19 claims
- 3472US5454347ALaser-beam annealing apparatusAGENCY IND SCIENCE TECHN·Filed 1993·Granted Oct 3, 1995·58 cites·6 claims
- 3571US9496433B2Photoelectric conversion device and method for manufacturing photoelectric conversion deviceROHM CO LTD·Filed 2013·Granted Nov 15, 2016·1 cites·16 claims
- 3670US10608851B2Continuous-time sampler circuitsANALOG DEVICES GLOBAL UNLIMITED CO·Filed 2018·Granted Mar 31, 2020·2 cites·20 claims
- 3770US10361711B1Stub filters to improve blocker tolerance in continuous-time residue generation analog-to-digital convertersANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2018·Granted Jul 23, 2019·2 cites·27 claims
- 3868US10056914B2Frequency-domain ADC flash calibrationANALOG DEVICES GLOBAL·Filed 2016·Granted Aug 21, 2018·2 cites·21 claims
- 3967US8350626B2Amplifier circuitANALOG DEVICES INC·Filed 2011·Granted Jan 8, 2013·3 cites·14 claims
- 4067US5203362AUltrasonic oscillating device and ultrasonic washing apparatus using the sameKAIJO DENKI KK·Filed 1991·Granted Apr 20, 1993·23 cites·4 claims
- 4163US11329660B2VCO-based continuous-time pipelined ADCANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2021·Granted May 10, 2022·0 cites·26 claims
- 4262US10958281B1Analog-to-digital convertor (ADC) with a synthesized delay stageANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2019·Granted Mar 23, 2021·1 cites·30 claims
- 4360US12107590B2Digital correction of digital-to-analog converter errors in continuous-time analog-to-digital convertersANALOG DEVICES INTERNATIONAL UNLIMITED CO·Filed 2022·Granted Oct 1, 2024·0 cites·20 claims
- 4458US8704568B1Sub-gate delay adjustment using digital locked-loopANALOG DEVICES INC·Filed 2012·Granted Apr 22, 2014·1 cites·25 claims
- 4556US8304804B2Semiconductor deviceSHIBATA HAJIME·Filed 2008·Granted Nov 6, 2012·1 cites·15 claims
- 4647US8829962B2Sub-gate delay adjustment using digital locked-loopZHU NING·Filed 2014·Granted Sep 9, 2014·0 cites·15 claims
- 4742US2022102565A1Photovoltaic cell, manufacturing method thereof, and photovoltaic battery moduleAIST·Filed 2019·Application pending·0 cites
- 4839US9912342B2Flash analog-to-digital converter calibrationANALOG DEVICES GLOBAL·Filed 2016·Granted Mar 6, 2018·0 cites·20 claims
- 4939US9525444B2Adaptive element shufflerSHIBATA HAJIME·Filed 2013·Granted Dec 20, 2016·0 cites·22 claims
- 5039US2008265932A1Semiconductor test apparatusADVANTEST CORP·Filed 2007·Application pending·0 cites
Showing the top 50 of 51 patent records by PatentIndex Score.
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →