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公开(公告)号：US10252522B2
公开(公告)日：2019-04-09
申请号：US15910239
申请日：2018-03-02
发明人： Shuhei Hiwada
IPC分类号： B41J2/045 , H01L41/09 , H01L41/04 , H01L41/047
摘要： A liquid ejecting apparatus includes a liquid ejection head, a plurality of amplifiers, and a plurality of signal line sets. The liquid ejection head has a plurality of actuators. The plurality of amplifiers is configured to amplify driving signals supplied to each of the plurality of actuators. The plurality of signal line sets is provided for respective ones of the plurality of amplifiers. Each of the plurality of signal line sets includes a supply line and a return line. The supply line is configured to supply the driving signals amplified by a corresponding one of the plurality of amplifiers to the plurality of actuators. The return line is configured to return the driving signals to the corresponding one of the plurality of amplifiers. Each of the plurality of amplifiers is electrically floating.
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公开(公告)号：US09764546B2
公开(公告)日：2017-09-19
申请号：US15281984
申请日：2016-09-30
发明人： Masayoshi Hayashi , Shuhei Hiwada , Takahiko Watari , Jie Chen
IPC分类号： B41J2/045
CPC分类号： B41J2/04541 , B41J2/04523 , B41J2/0455 , B41J2/04551 , B41J2/04573 , B41J2/04581 , B41J2/04588 , B41J2/04591 , B41J2/04593 , B41J2/04596 , B41J2/04598
摘要： There is provided a liquid discharge apparatus, including: a drive element configured to apply discharge energy to the liquid to discharge the liquid; signal generators configured to generate a plurality of types of drive signals having mutually different waveforms to drive the drive element; and drive switches electrically located between the signal generators and the drive element to correspond to the plurality of types of drive signals respectively. The drive switches include a first drive switch and a second drive switch which are different in ON-resistance.
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公开(公告)号：US08827425B2
公开(公告)日：2014-09-09
申请号：US13627116
申请日：2012-09-26
发明人： Hiroto Sugahara , Shuhei Hiwada
IPC分类号： B41J2/14
CPC分类号： B41J29/38 , B41J2/14233 , B41J2002/14491
摘要： There is provided a liquid droplet jetting apparatus configured to jet liquid droplets onto an object, including:a channel member in which a nozzle for jetting the liquid droplets and a liquid channel communicating with the nozzle are formed; an energy conversion element which is configured to apply a jetting energy to the liquid in the nozzle; a drive unit which is configured to supply a driving signal to the energy conversion element; a flow detecting sensor which is configured to detect a liquid flow inside the liquid channel; and a cabling member which includes a drive line connected to the energy conversion element, and a signal output line connected to the flow detecting sensor to transmit a detection signal corresponding to the liquid flow inside the liquid channel output from the flow detecting sensor.
摘要翻译： 提供了一种构造成将液滴喷射到物体上的液滴喷射装置，包括：通道构件，其中形成用于喷射液滴的喷嘴和与喷嘴连通的液体通道; 能量转换元件，被配置为向喷嘴中的液体施加喷射能量; 驱动单元，被配置为向所述能量转换元件提供驱动信号; 流量检测传感器，其被配置为检测液体通道内的液体流动; 以及布线构件，其包括连接到所述能量转换元件的驱动线，以及信号输出线，连接到所述流量检测传感器，以传输与从所述流量检测传感器输出的所述液体通道内的液体流相对应的检测信号。
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公开(公告)号：US08888248B2
公开(公告)日：2014-11-18
申请号：US13760512
申请日：2013-02-06
发明人： Shuhei Hiwada , Hiroto Sugahara
CPC分类号： B41J2/14 , B41J2/1408 , B41J2202/08
摘要： There is provided a liquid droplet jetting apparatus, including: a liquid droplet jetting head configured to include a liquid droplet jetting surface formed with a plurality of nozzles from which liquid droplets are jetted, an energy applying mechanism configured to apply a jetting energy to a liquid in each of the nozzles, and a driving device configured to drive the energy applying mechanism; a relative movement mechanism configured to relatively move, along the liquid droplet jetting surface, the liquid droplet jetting head and an object to be jetted; and a heat radiating member configured to be provided in the liquid droplet jetting head to radiate heat generated in the driving device. The heat radiating member includes a heat radiating surface which is positioned on a plane including the liquid droplet jetting surface or which projects toward the object as compared with the plane including the liquid droplet jetting surface.
摘要翻译： 提供一种液滴喷射装置，包括：液滴喷射头，其构造成包括形成有喷射液滴的多个喷嘴的液滴喷射表面，配置成将喷射能量施加到液体的能量施加机构 在每个喷嘴中，以及构造成驱动能量施加机构的驱动装置; 相对运动机构，其构造成沿着液滴喷射表面相对移动液滴喷射头和待喷射的物体; 以及散热构件，其构造成设置在所述液滴喷射头中，以辐射在所述驱动装置中产生的热量。 散热构件包括与包括液滴喷射表面的平面相比位于包括液滴喷射表面的平面或朝向物体突出的平面的散热表面。
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公开(公告)号：US12109810B2
公开(公告)日：2024-10-08
申请号：US17693614
申请日：2022-03-14
发明人： Shuhei Hiwada
CPC分类号： B41J2/04588 , B41J2/04536 , B41J2/04581 , B41J2/14201
摘要： There is provided head including: nozzle configured to discharge liquid by energy generating element; signal generator configured to generate, based on first and second data representing first and second driving waveform, time division multiplex signal including first and second portions of the first driving waveform, and third and fourth portions of the second driving waveform; and separator configured to separate first or second driving waveform signal representing the first or second driving waveform from the time division multiplex signal. The energy generating element is configured to be driven by the first or second driving waveform signal. In the time division multiplex signal, the third portion is aligned between the first and second portions and the second portion is aligned between the third and fourth portions. The time division multiplex signal is capable of transmitting the first and second data via single signal line.
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公开(公告)号：US11919302B2
公开(公告)日：2024-03-05
申请号：US17546765
申请日：2021-12-09
发明人： Shuhei Hiwada
CPC分类号： B41J2/04581 , B41J2/0455 , G01R29/22
摘要： There is provided a print apparatus including: a piezoelectric member; an individual electrode formed in the piezoelectric member; a first common electrode formed in the piezoelectric member so that the first common electrode is opposed to the individual electrode; a second common electrode formed in the piezoelectric member so that the second common electrode is opposed to the individual electrode, a voltage to be applied to the second common electrode being different from a voltage to be applied to the first common electrode; and a detection circuit configured to detect a capacitance of a first capacitor configured by the piezoelectric member, the individual electrode, and the first common electrode and a second capacitor configured by the piezoelectric member, the individual electrode, and the second common electrode. The detection circuit includes an oscillation circuit configured to be connected to the individual electrode.
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公开(公告)号：US20240007053A1
公开(公告)日：2024-01-04
申请号：US18339285
申请日：2023-06-22
发明人： Tsubasa Horie , Shuhei Hiwada
CPC分类号： H03F1/0205 , H03F3/21 , B41J2/04541 , B41J2/04586 , B41J2/04588 , H03F2200/78 , H03F2200/129
摘要： A printing device comprises an amplifying circuit configured to amplify a drive waveform signal, and an energy generating element. The energy generating element is configured to eject the liquid from a nozzle. The amplifying circuit includes a comparator of which the drive waveform signal is input to a positive input terminal, a gate driver, an output signal being input to the gate driver from the comparator, a first N-type MOSFET and a second N-type MOSFET. A drain of the first N-type MOSFET is connected to a power supply. A source of the first N-type MOSFET is connected to a drain of the second N-type MOSFET. The printing device comprises negative feedback wiring configured to connect a negative input terminal of the comparator to the source of the first N-type MOSFET and the drain of the second N-type MOSFET.
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公开(公告)号：US20220314617A1
公开(公告)日：2022-10-06
申请号：US17693614
申请日：2022-03-14
发明人： Shuhei Hiwada
摘要： There is provided head including: nozzle configured to discharge liquid by energy generating element; signal generator configured to generate, based on first and second data representing first and second driving waveform, time division multiplex signal including first and second portions of the first driving waveform, and third and fourth portions of the second driving waveform; and separator configured to separate first or second driving waveform signal representing the first or second driving waveform from the time division multiplex signal. The energy generating element is configured to be driven by the first or second driving waveform signal. In the time division multiplex signal, the third portion is aligned between the first and second portions and the second portion is aligned between the third and fourth portions. The time division multiplex signal is capable of transmitting the first and second data via single signal line.
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公开(公告)号：US20130201230A1
公开(公告)日：2013-08-08
申请号：US13627116
申请日：2012-09-26
发明人： Hiroto SUGAHARA , Shuhei Hiwada
IPC分类号： B41J29/38
CPC分类号： B41J29/38 , B41J2/14233 , B41J2002/14491
摘要： There is provided a liquid droplet jetting apparatus configured to jet liquid droplets onto an object, including:a channel member in which a nozzle for jetting the liquid droplets and a liquid channel communicating with the nozzle are formed; an energy conversion element which is configured to apply a jetting energy to the liquid in the nozzle; a drive unit which is configured to supply a driving signal to the energy conversion element; a flow detecting sensor which is configured to detect a liquid flow inside the liquid channel; and a cabling member which includes a drive line connected to the energy conversion element, and a signal output line connected to the flow detecting sensor to transmit a detection signal corresponding to the liquid flow inside the liquid channel output from the flow detecting sensor.
摘要翻译： 提供了一种构造成将液滴喷射到物体上的液滴喷射装置，包括：通道构件，其中形成用于喷射液滴的喷嘴和与喷嘴连通的液体通道; 能量转换元件，被配置为向喷嘴中的液体施加喷射能量; 驱动单元，被配置为向所述能量转换元件提供驱动信号; 流量检测传感器，其被配置为检测液体通道内的液体流动; 以及布线构件，其包括连接到所述能量转换元件的驱动线，以及信号输出线，连接到所述流量检测传感器，以传输与从所述流量检测传感器输出的所述液体通道内的液体流相对应的检测信号。
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