Inventor
KUBOTA YUZURU
JP39 patents
⚠️ This page may combine multiple inventors who share the name “KUBOTA YUZURU”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
SII PRINTEK INC
19 patentsUS9610769B2Apr 4, 2017
Liquid injection head, method of manufacturing liquid injection head, and liquid injection device
SII PRINTEK INC4 citations73
US9085164B2Jul 21, 2015
Liquid jet head and liquid jet apparatus
SII PRINTEK INC2 citations62
US10513116B2Dec 24, 2019
Liquid ejecting head and liquid ejecting apparatus
SII PRINTEK INC1 citations60
US11254132B2Feb 22, 2022
Head chip, liquid jet head, and liquid jet recording device
SII PRINTEK INC1 citations59
US12064978B2Aug 20, 2024
Positioning structure, liquid jet head, and liquid jet recording device
SII PRINTEK INC0 citations52
US11964484B2Apr 23, 2024
Liquid jet head and liquid jet recording device
SII PRINTEK INC0 citations52
US11760105B2Sep 19, 2023
Head chip, liquid jet head, and liquid jet recording device
SII PRINTEK INC0 citations52
US9365038B2Jun 14, 2016
Liquid jet head and liquid jet apparatus
SII PRINTEK INC0 citations52
US8985746B2Mar 24, 2015
Liquid jet head, liquid jet apparatus, and method of manufacturing liquid jet head
SII PRINTEK INC1 citations52
US9010908B2Apr 21, 2015
Liquid jet head, liquid jet apparatus, and method of manufacturing liquid jet head
SII PRINTEK INC0 citations51
US8944571B2Feb 3, 2015
Liquid jet head, liquid jet apparatus and method of manufacturing liquid jet head
SII PRINTEK INC0 citations51
US11654683B2May 23, 2023
Head chip, liquid jet head, liquid jet recording device, and method of manufacturing head chip
SII PRINTEK INC0 citations50
US8967774B2Mar 3, 2015
Liquid jet head, liquid jet apparatus, and method of manufacturing liquid jet head
SII PRINTEK INC1 citations50
US11548283B2Jan 10, 2023
Method of manufacturing head chip and method of manufacturing liquid jet head
SII PRINTEK INC0 citations47
US9144974B2Sep 29, 2015
Liquid jet head and liquid jet recording apparatus
SII PRINTEK INC0 citations42
US10427404B2Oct 1, 2019
Liquid ejecting head chip, liquid ejecting head, and liquid ejecting apparatus
SII PRINTEK INC0 citations41
US9352565B2May 31, 2016
Liquid jet head and liquid jet apparatus
SII PRINTEK INC0 citations41
US9931841B2Apr 3, 2018
Manufacturing method of liquid jet head, liquid jet head, and liquid jet apparatus
SII PRINTEK INC0 citations40
US9199465B2Dec 1, 2015
Liquid jet head, method of manufacturing liquid jet head, and liquid jet apparatus
SII PRINTEK INC0 citations40
HITACHI LTD
17 patentsUS4240020ADec 16, 1980
Control system for suppressing torque ripple in synchronous motor
HITACHI LTD80 citations96
US4680526AJul 14, 1987
Method of controlling inverter-driven induction motor
HITACHI LTD65 citations95
US5029288AJul 2, 1991
Method and apparatus for operating a variable speed power generation system
HITACHI LTD32 citations93
US5016158AMay 14, 1991
Parallel multi-inverter system and motor drive system using the same
HITACHI LTD48 citations93
US4344025AAug 10, 1982
Motor control system
HITACHI LTD33 citations93
US4330741AMay 18, 1982
Electric control apparatus of induction motor
HITACHI LTD30 citations93
US4125796ANov 14, 1978
Control apparatus for use in a synchronous machine
HITACHI LTD33 citations93
US5184057AFeb 2, 1993
Control method and device for ac motor
HITACHI LTD35 citations92
US4277735AJul 7, 1981
Control apparatus for induction motor
HITACHI LTD23 citations82
US4276504AJun 30, 1981
Control device for commutatorless motor
HITACHI LTD28 citations82
US4132931AJan 2, 1979
Control system for a.c. motors
HITACHI LTD29 citations82
US4088932AMay 9, 1978
Control system for commutatorless motor
HITACHI LTD21 citations82
US4060753ANov 29, 1977
Control system for commutatorless motor
HITACHI LTD22 citations82
US4206395AJun 3, 1980
Harmonic eliminating apparatus
HITACHI LTD19 citations81
US4625272ANov 25, 1986
Converter control apparatus and method
HITACHI LTD11 citations74
US4295084AOct 13, 1981
Control apparatus of synchronous motor having thyristor converter
HITACHI LTD11 citations74
US4486824ADec 4, 1984
PWM Converter with control circuit responsive to minimum holding current
HITACHI LTD5 citations63