Inventor · disambiguated record
Kenichi Sakakibara
Also filed as: SAKAKIBARA KENICHI
61 granted patents·2 pending applications·697 citations·filing 1993–2023
99Inventor score
Top patents by PatentIndex Score
63 records- 0193US9246398B2Power converterSAKAKIBARA KENICHI·Filed 2012·Granted Jan 26, 2016·18 cites·19 claims
- 0292US9780683B2Power converter with a power buffer circuit whose buffered power is smaller than an AC component of a pulsating powerDAIKIN IND LTD·Filed 2014·Granted Oct 3, 2017·15 cites·10 claims
- 0392US8098035B2Motor control unitSEKIMOTO MORIMITSU·Filed 2007·Granted Jan 17, 2012·32 cites·7 claims
- 0491US8958259B2Device performing refresh operations of memory areasSAKAKIBARA KENICHI·Filed 2012·Granted Feb 17, 2015·12 cites·21 claims
- 0591US6453400B1Semiconductor integrated circuit deviceNEC CORP·Filed 1998·Granted Sep 17, 2002·90 cites·24 claims
- 0689US9276489B2Power converter having clamp circuit with capacitor and component for limiting current flowing into capacitorFUJITA TAKAYUKI·Filed 2010·Granted Mar 1, 2016·11 cites·18 claims
- 0787US8964424B2Power converter, control method thereof, and direct matrix converterSAKAKIBARA KENICHI·Filed 2009·Granted Feb 24, 2015·22 cites·20 claims
- 0887US7881087B2Matrix converter and control method for the matrix converterDAIKIN IND LTD·Filed 2007·Granted Feb 1, 2011·24 cites·7 claims
- 0985US8873325B2Semiconductor device performing refresh operationELPIDA MEMORY INC·Filed 2012·Granted Oct 28, 2014·7 cites·9 claims
- 1085US7907427B2InverterDAIKIN IND LTD·Filed 2007·Granted Mar 15, 2011·17 cites·4 claims
- 1184US8310848B2Direct AC power converting apparatusSAKAKIBARA KENICHI·Filed 2008·Granted Nov 13, 2012·19 cites·12 claims
- 1284US6339817B1Semiconductor memory including main and sub memory portions having plural memory cell groups and a bidirectional data transfer circuitNEC CORP·Filed 1998·Granted Jan 15, 2002·58 cites·14 claims
- 1382US9075089B2Method of measuring link voltageSAKAKIBARA KENICHI·Filed 2011·Granted Jul 7, 2015·6 cites·16 claims
- 1479US9490722B2Method of controlling direct power converterDAIKIN IND LTD·Filed 2013·Granted Nov 8, 2016·5 cites·14 claims
- 1578US9837929B2Power converterDAIKIN IND LTD·Filed 2015·Granted Dec 5, 2017·3 cites·10 claims
- 1678US8773870B2Power converter and method for controlling sameFUJITA TAKAYUKI·Filed 2010·Granted Jul 8, 2014·5 cites·12 claims
- 1778US5862093ADynamic memory device with circuits for setting self-refreshing periodNEC CORP·Filed 1997·Granted Jan 19, 1999·42 cites·10 claims
- 1877US9906156B2Direct-power-converter control deviceDAIKIN IND LTD·Filed 2015·Granted Feb 27, 2018·3 cites·12 claims
- 1976US9450502B2Direct power conversion device and method for controlling direct power conversion deviceDAIKIN IND LTD·Filed 2013·Granted Sep 20, 2016·4 cites·15 claims
- 2074US8450961B2Power converting apparatusSAKAKIBARA KENICHI·Filed 2009·Granted May 28, 2013·11 cites·16 claims
- 2173US10666143B2Control device for direct power converterDAIKIN IND LTD·Filed 2018·Granted May 26, 2020·2 cites·7 claims
- 2273US8520419B2Current controlled power converterSAKAKIBARA KENICHI·Filed 2012·Granted Aug 27, 2013·3 cites·9 claims
- 2373US7944717B2Power converter apparatus and power converter apparatus control methodDAIKIN IND LTD·Filed 2007·Granted May 17, 2011·10 cites·23 claims
- 2473US6101146ASemiconductor integrated circuit deviceNEC CORP·Filed 1998·Granted Aug 8, 2000·33 cites·10 claims
- 2573US5418754ADynamic random access memory device with self-refresh cycle time directly measurable at data pinNEC CORP·Filed 1994·Granted May 23, 1995·34 cites·8 claims
- 2670US8659917B2Direct-type converting apparatus and method for controlling the sameSAKAKIBARA KENICHI·Filed 2009·Granted Feb 25, 2014·8 cites·16 claims
- 2770US8270186B2Power conversion deviceSAKAKIBARA KENICHI·Filed 2008·Granted Sep 18, 2012·7 cites·4 claims
- 2866US6377501B2Semiconductor integrated circuit deviceNEC CORP·Filed 1998·Granted Apr 23, 2002·20 cites·44 claims
- 2965US10804811B2Control device for direct power converter for reduction of harmonic distortionDAIKIN IND LTD·Filed 2017·Granted Oct 13, 2020·1 cites·17 claims
- 3065US9654019B2Control method for direct power converterDAIKIN IND LTD·Filed 2014·Granted May 16, 2017·2 cites·20 claims
- 3165US7187566B2Three-phase rectifierDAIKIN IND LTD·Filed 2001·Granted Mar 6, 2007·18 cites·5 claims
- 3263US9178409B2Power conversion control device that controls commutation of power converting apparatus based on dead timeDAIKIN IND LTD·Filed 2012·Granted Nov 3, 2015·2 cites·15 claims
- 3363US6016280ASemiconductor integrated circuit deviceNEC CORP·Filed 1998·Granted Jan 18, 2000·21 cites·4 claims
- 3461US10171005B2Inverter control deviceDAIKIN IND LTD·Filed 2016·Granted Jan 1, 2019·1 cites·8 claims
- 3561US8264859B2Direct power converting apparatusSAKAKIBARA KENICHI·Filed 2008·Granted Sep 11, 2012·5 cites·13 claims
- 3661US8030661B2Power conversion apparatusDAIKIN IND LTD·Filed 2007·Granted Oct 4, 2011·2 cites·16 claims
- 3761US6151256ASemiconductor integrated circuit deviceNEC CORP·Filed 1999·Granted Nov 21, 2000·15 cites·23 claims
- 3860US9735697B2Control method for direct power converterDAIKIN IND LTD·Filed 2014·Granted Aug 15, 2017·1 cites·6 claims
- 3960US5295110ASemiconductor memory device incorporated with self-refresh circuitNEC CORP·Filed 1993·Granted Mar 15, 1994·19 cites·6 claims
- 4059US9444360B2State quantity detection method in power converting apparatus and power converting apparatusSAKAKIBARA KENICHI·Filed 2009·Granted Sep 13, 2016·4 cites·20 claims
- 4158US7898829B2Rectifier circuit and three-phase rectifier deviceDAIKIN IND LTD·Filed 2006·Granted Mar 1, 2011·7 cites·10 claims
- 4258US6735144B2Semiconductor integrated circuit deviceNEC CORP·Filed 2002·Granted May 11, 2004·8 cites·22 claims
- 4357US8913405B2Power converting apparatus generating a carrier having a waveform in which an absolute value of a slope is constant with respect to time, based on a value for internally dividing amplitude of the waveform into first and second valuesSAKAKIBARA KENICHI·Filed 2008·Granted Dec 16, 2014·4 cites·18 claims
- 4457US8279639B2Direct AC power converting apparatusSAKAKIBARA KENICHI·Filed 2008·Granted Oct 2, 2012·4 cites·13 claims
- 4557US7764548B2Semiconductor memory device which delays refreshment signal for performing self-refreshmentELPIDA MEMORY INC·Filed 2008·Granted Jul 27, 2010·3 cites·4 claims
- 4656US11811333B2Power conversion deviceDAIKIN IND LTD·Filed 2023·Granted Nov 7, 2023·0 cites·13 claims
- 4756US6252788B1Semiconductor integrated circuit deviceNEC CORP·Filed 1999·Granted Jun 26, 2001·12 cites·4 claims
- 4855US8374005B2Direct AC power converting apparatusDAIKIN IND LTD·Filed 2009·Granted Feb 12, 2013·3 cites·6 claims
- 4955US2009118387A1Method for Producing Water-Absorbing Polyurethane FoamINOUE MTP KK·Filed 2007·Application pending·0 cites
- 5052US8144492B2Current controlled power converterSAKAKIBARA KENICHI·Filed 2007·Granted Mar 27, 2012·2 cites·5 claims
Showing the top 50 of 63 patent records by PatentIndex Score.
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