Inventor · disambiguated record
Yuzuru Kubota
Also filed as: KUBOTA YUZURU · NAGASE HIROSHI
39 granted patents·4 pending applications·548 citations·filing 1976–2023
97Inventor score
Top patents by PatentIndex Score
43 records- 0198US4240020AControl system for suppressing torque ripple in synchronous motorHITACHI LTD·Filed 1978·Granted Dec 16, 1980·80 cites·6 claims
- 0292US4680526AMethod of controlling inverter-driven induction motorHITACHI LTD·Filed 1985·Granted Jul 14, 1987·65 cites·2 claims
- 0391US9610769B2Liquid injection head, method of manufacturing liquid injection head, and liquid injection deviceSII PRINTEK INC·Filed 2016·Granted Apr 4, 2017·4 cites·11 claims
- 0489US7771179B2Tube pump, ink jet recording device, and ink feeding methodSEIKO INSTR INC·Filed 2005·Granted Aug 10, 2010·13 cites·15 claims
- 0588US4125796AControl apparatus for use in a synchronous machineHITACHI LTD·Filed 1977·Granted Nov 14, 1978·33 cites·5 claims
- 0687US4344025AMotor control systemHITACHI LTD·Filed 1979·Granted Aug 10, 1982·33 cites·9 claims
- 0784US4276504AControl device for commutatorless motorHITACHI LTD·Filed 1978·Granted Jun 30, 1981·28 cites·7 claims
- 0882US11254132B2Head chip, liquid jet head, and liquid jet recording deviceSII PRINTEK INC·Filed 2020·Granted Feb 22, 2022·1 cites·7 claims
- 0980US4330741AElectric control apparatus of induction motorHITACHI LTD·Filed 1980·Granted May 18, 1982·30 cites·12 claims
- 1080US4277735AControl apparatus for induction motorHITACHI LTD·Filed 1979·Granted Jul 7, 1981·23 cites·5 claims
- 1179US5029288AMethod and apparatus for operating a variable speed power generation systemHITACHI LTD·Filed 1989·Granted Jul 2, 1991·32 cites·5 claims
- 1279US4132931AControl system for a.c. motorsHITACHI LTD·Filed 1977·Granted Jan 2, 1979·29 cites·6 claims
- 1379US4060753AControl system for commutatorless motorHITACHI LTD·Filed 1976·Granted Nov 29, 1977·22 cites·8 claims
- 1478US4088932AControl system for commutatorless motorHITACHI LTD·Filed 1977·Granted May 9, 1978·21 cites·7 claims
- 1576US10513116B2Liquid ejecting head and liquid ejecting apparatusSII PRINTEK INC·Filed 2018·Granted Dec 24, 2019·1 cites·15 claims
- 1676US5016158AParallel multi-inverter system and motor drive system using the sameHITACHI LTD·Filed 1990·Granted May 14, 1991·48 cites·3 claims
- 1775US9085164B2Liquid jet head and liquid jet apparatusSII PRINTEK INC·Filed 2012·Granted Jul 21, 2015·2 cites·20 claims
- 1875US4206395AHarmonic eliminating apparatusHITACHI LTD·Filed 1978·Granted Jun 3, 1980·19 cites·12 claims
- 1970US8985746B2Liquid jet head, liquid jet apparatus, and method of manufacturing liquid jet headSII PRINTEK INC·Filed 2013·Granted Mar 24, 2015·1 cites·21 claims
- 2067US8967774B2Liquid jet head, liquid jet apparatus, and method of manufacturing liquid jet headSII PRINTEK INC·Filed 2013·Granted Mar 3, 2015·1 cites·18 claims
- 2167US5184057AControl method and device for ac motorHITACHI LTD·Filed 1990·Granted Feb 2, 1993·35 cites·41 claims
- 2260US12064978B2Positioning structure, liquid jet head, and liquid jet recording deviceSII PRINTEK INC·Filed 2022·Granted Aug 20, 2024·0 cites·11 claims
- 2358US11760105B2Head chip, liquid jet head, and liquid jet recording deviceSII PRINTEK INC·Filed 2021·Granted Sep 19, 2023·0 cites·11 claims
- 2458US4295084AControl apparatus of synchronous motor having thyristor converterHITACHI LTD·Filed 1979·Granted Oct 13, 1981·11 cites·8 claims
- 2556US4625272AConverter control apparatus and methodHITACHI LTD·Filed 1983·Granted Nov 25, 1986·11 cites·10 claims
- 2655US9365038B2Liquid jet head and liquid jet apparatusSII PRINTEK INC·Filed 2014·Granted Jun 14, 2016·0 cites·14 claims
- 2754US11964484B2Liquid jet head and liquid jet recording deviceSII PRINTEK INC·Filed 2022·Granted Apr 23, 2024·0 cites·8 claims
- 2854US11548283B2Method of manufacturing head chip and method of manufacturing liquid jet headSII PRINTEK INC·Filed 2019·Granted Jan 10, 2023·0 cites·12 claims
- 2952US9010908B2Liquid jet head, liquid jet apparatus, and method of manufacturing liquid jet headSII PRINTEK INC·Filed 2013·Granted Apr 21, 2015·0 cites·9 claims
- 3050US12337599B2Head chip, liquid jet head, liquid jet recording device, and method of manufacturing head chipSLL PRINTEK INC·Filed 2023·Granted Jun 24, 2025·0 cites·11 claims
- 3150US11654683B2Head chip, liquid jet head, liquid jet recording device, and method of manufacturing head chipSII PRINTEK INC·Filed 2021·Granted May 23, 2023·0 cites·11 claims
- 3249US10427404B2Liquid ejecting head chip, liquid ejecting head, and liquid ejecting apparatusSII PRINTEK INC·Filed 2018·Granted Oct 1, 2019·0 cites·13 claims
- 3348US9352565B2Liquid jet head and liquid jet apparatusSII PRINTEK INC·Filed 2013·Granted May 31, 2016·0 cites·13 claims
- 3448US9144974B2Liquid jet head and liquid jet recording apparatusSII PRINTEK INC·Filed 2014·Granted Sep 29, 2015·0 cites·12 claims
- 3547US8944571B2Liquid jet head, liquid jet apparatus and method of manufacturing liquid jet headSII PRINTEK INC·Filed 2013·Granted Feb 3, 2015·0 cites·12 claims
- 3647US2020147959A1Liquid jet head chip, liquid jet head, and liquid jet recording deviceSII PRINTEK INC·Filed 2019·Application pending·0 cites
- 3742US9931841B2Manufacturing method of liquid jet head, liquid jet head, and liquid jet apparatusSII PRINTEK INC·Filed 2016·Granted Apr 3, 2018·0 cites·7 claims
- 3842US9199465B2Liquid jet head, method of manufacturing liquid jet head, and liquid jet apparatusSII PRINTEK INC·Filed 2014·Granted Dec 1, 2015·0 cites·19 claims
- 3941US2014125741A1Liquid jet head and liquid jet apparatusSII PRINTEK INC·Filed 2013·Application pending·0 cites
- 4040US11548284B2Method of manufacturing head chip and head chip of liquid jet headSII PRINTER INC·Filed 2020·Granted Jan 10, 2023·0 cites·9 claims
- 4140US4486824APWM Converter with control circuit responsive to minimum holding currentHITACHI LTD·Filed 1982·Granted Dec 4, 1984·5 cites·16 claims
- 4238US2018222209A1Member, liquid ejecting head chip, liquid ejecting head, liquid ejecting apparatus, and cutting methodSII PRINTEK INC·Filed 2018·Application pending·0 cites
- 4337US2011157275A1Liquid jet head and liquid jet apparatusKUBOTA YUZURU·Filed 2010·Application pending·0 cites
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →