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    Liquid droplet ejection head and image forming apparatus having the same
    1.
    发明授权
    Liquid droplet ejection head and image forming apparatus having the same 有权
    液滴喷射头和具有该液滴喷射头的图像形成装置

    公开(公告)号：US08141973B2

    公开(公告)日：2012-03-27

    申请号：US12121999

    申请日：2008-05-16

    申请人： Toshinobu Hamazaki ,  Susumu Hirakata

    发明人： Toshinobu Hamazaki ,  Susumu Hirakata

    IPC分类号： B41J29/38 ,  B41J2/18

    CPC分类号： B41J2/14233 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/0459 ,  B41J2/04596 ,  B41J2/16526 ,  B41J2/16585 ,  B41J2/175 ,  B41J2/17509 ,  B41J2/17596 ,  B41J2/18 ,  B41J2002/14419 ,  B41J2202/12

    摘要： A liquid droplet ejection head comprises an ejector, a liquid viscosity-increase prevention structure and a liquid viscosity-increase prevention controller. The ejector includes a nozzle for ejecting a liquid droplet, a pressure chamber communicating with the nozzle through a communication path, and an actuator for applying pressure to a liquid in the pressure chamber. The liquid viscosity-increase prevention structure prevents an increase of viscosity of the liquid in the ejector. The liquid viscosity-increase prevention controller changes the operation frequency of the liquid viscosity-increase prevention structure between when the liquid droplet is ejected from the nozzle and when ejection of the liquid droplet is paused and no liquid droplet is being ejected from the nozzle.

    摘要翻译： 液滴喷射头包括喷射器，液体粘度增加防止结构和液体粘度增加防止控制器。 喷射器包括用于喷射液滴的喷嘴，通过连通路径与喷嘴连通的压力室，以及用于向压力室中的液体施加压力的致动器。 液体粘度增加防止结构防止喷射器中液体的粘度增加。 液体粘度增加防止控制器改变当液滴从喷嘴喷出时和当液滴的喷出暂停而没有液滴从喷嘴喷射时液体增粘防止结构的操作频率。

    LIQUID DROPLET EJECTION HEAD AND IMAGE FORMING APPARATUS HAVING THE SAME
    2.
    发明申请
    LIQUID DROPLET EJECTION HEAD AND IMAGE FORMING APPARATUS HAVING THE SAME 有权
    液体喷射头和图像形成装置

    公开(公告)号：US20090160887A1

    公开(公告)日：2009-06-25

    申请号：US12121999

    申请日：2008-05-16

    申请人： Toshinobu Hamazaki ,  Susumu Hirakata

    发明人： Toshinobu Hamazaki ,  Susumu Hirakata

    IPC分类号： B41J2/195

    CPC分类号： B41J2/14233 ,  B41J2/04581 ,  B41J2/04588 ,  B41J2/0459 ,  B41J2/04596 ,  B41J2/16526 ,  B41J2/16585 ,  B41J2/175 ,  B41J2/17509 ,  B41J2/17596 ,  B41J2/18 ,  B41J2002/14419 ,  B41J2202/12

    摘要： A liquid droplet ejection head comprises an ejector, a liquid viscosity-increase prevention structure and a liquid viscosity-increase prevention controller. The ejector includes a nozzle for ejecting a liquid droplet, a pressure chamber communicating with the nozzle through a communication path, and an actuator for applying pressure to a liquid in the pressure chamber. The liquid viscosity-increase prevention structure prevents an increase of viscosity of the liquid in the ejector. The liquid viscosity-increase prevention controller changes the operation frequency of the liquid viscosity-increase prevention structure between when the liquid droplet is ejected from the nozzle and when ejection of the liquid droplet is paused and no liquid droplet is being ejected from the nozzle.

    摘要翻译： 液滴喷射头包括喷射器，液体粘度增加防止结构和液体粘度增加防止控制器。 喷射器包括用于喷射液滴的喷嘴，通过连通路径与喷嘴连通的压力室，以及用于向压力室中的液体施加压力的致动器。 液体粘度增加防止结构防止喷射器中液体的粘度增加。 液体粘度增加防止控制器改变当液滴从喷嘴喷出时和当液滴的喷出暂停而没有液滴从喷嘴喷射时液体增粘防止结构的操作频率。

    Thermal printing ink medium
    3.
    发明授权
    Thermal printing ink medium 失效
    热敏油墨介质

    公开(公告)号：US5387460A

    公开(公告)日：1995-02-07

    申请号：US959438

    申请日：1992-10-13

    申请人： Susumu Hirakata ,  Eiichi Akutsu ,  Toru Okamoto ,  Hiroh Soga ,  Shigehito Ando

    发明人： Susumu Hirakata ,  Eiichi Akutsu ,  Toru Okamoto ,  Hiroh Soga ,  Shigehito Ando

    IPC分类号： B41M5/382 ,  B41M5/20 ,  B41M5/40 ,  B41M5/42 ,  B41M5/44 ,  B32B7/02

    CPC分类号： B41M5/42 ,  B41M5/3825 ,  B41M5/426 ,  B41M5/44 ,  Y10S428/913 ,  Y10S428/914 ,  Y10T428/24901 ,  Y10T428/2495 ,  Y10T428/25 ,  Y10T428/31504 ,  Y10T428/31678 ,  Y10T428/31681

    摘要： A thermal printing ink medium which electrically generates heat to transfer an ink thereof to a transfer material to form an image thereon is disclosed, which comprises a first heating element layer, a second heating element layer in contact with said first heating element layer, said second heating element layer having a greater volume resistivity than said first heating element layer, a conductive layer in contact with said second heating element layer, an ink layer provided on the side of said conductive layer opposite to said second heating element layer, and an adhesion-improving layer formed on the interface between said conductive layer and second heating element layer by the interaction therebetween so as to have a given volume resistivity. The thermal printing ink medium has advantages of (1) broadened choice of materials for an ink layer and ease in coloring the ink layer, (2) production ease and economy, (3) stable printing quality, (4) feasibility of repeated use, (5) an increased energy efficiency in image printing, (6) freedom from surface damage, (7) a reduced peak temperature of heat generation in a heat generating layer, and (8) high resolving power.

    摘要翻译： 公开了一种热电印刷油墨介质，其电产生热量以将油墨转印到转印材料上以形成图像，其包括第一加热元件层，与所述第一加热元件层接触的第二加热元件层，所述第二加热元件层 具有比所述第一加热元件层更大的体积电阻率的加热元件层，与所述第二加热元件层接触的导电层，设置在与所述第二加热元件层相对的所述导电层侧的墨层， 通过它们之间的相互作用在所述导电层和第二加热元件层之间的界面上形成的改进层以具有给定的体积电阻率。 热敏印刷油墨介质具有以下优点：（1）油墨层的材料选择范围扩大，油墨层着色容易，（2）生产易于经济，（3）印刷质量稳定，（4）重复使用的可行性， （5）图像打印中的能量效率提高，（6）免受表面损伤，（7）发热层中的发热峰值温度降低，（8）高分辨能力。

    Conduction recording head
    5.
    发明授权
    Conduction recording head 失效
    传导记录头

    公开(公告)号：US5764267A

    公开(公告)日：1998-06-09

    申请号：US649474

    申请日：1996-05-17

    申请人： Eiichi Akutsu ,  Hiroh Soga ,  Shigehito Ando ,  Susumu Hirakata

    发明人： Eiichi Akutsu ,  Hiroh Soga ,  Shigehito Ando ,  Susumu Hirakata

    IPC分类号： B41J2/335 ,  B41J2/395

    CPC分类号： B41J2/3357 ,  B41J2/33575 ,  B41J2/3359 ,  Y10T29/49083

    摘要： A conduction recording head forms an image on a recording sheet by connecting return path electrodes and recording electrodes conductively through a printing and recording medium. Recording electrodes, a drive circuit and connector electrodes are all disposed integrally on a flexible insulating film as a main head part which is disposed on a rigid support member through an elastic member.

    摘要翻译： 导电记录头通过印刷和记录介质连接返回路径电极和记录电极而在记录片上形成图像。 记录电极，驱动电路和连接器电极均整体地设置在柔性绝缘膜上，作为通过弹性构件设置在刚性支撑构件上的主头部。

    Maintenance device and recording
    7.
    发明申请
    Maintenance device and recording 失效
    维护设备和录音

    公开(公告)号：US20050057603A1

    公开(公告)日：2005-03-17

    申请号：US10892481

    申请日：2004-07-16

    申请人： Susumu Hirakata ,  Yoshihira Rai ,  Nobuhiro Katsuta ,  Hiroaki Satoh

    发明人： Susumu Hirakata ,  Yoshihira Rai ,  Nobuhiro Katsuta ,  Hiroaki Satoh

    IPC分类号： B41J2/18 ,  B41J2/165 ,  B41J2/185

    CPC分类号： B41J2/16585

    摘要： The present invention provides a maintenance device which can suction ink in a short period of time and with a small amount of consumed ink. The maintenance device has a plurality of capping portions disposed so as to face a plurality of unit heads which can discharge liquid drops onto a recording medium; a plurality of small chambers communicating with the plurality of capping portions, respectively; a suction portion suctioning interiors of the small chambers; and a plurality of valve mechanisms independently controlling airtight states of the interiors of the small chambers. The present invention also provides a recording device equipped with this maintenance device.

    摘要翻译： 本发明提供一种维护装置，其能够在短时间内吸收墨水并且能够少量消耗墨水。 所述维护装置具有多个封盖部，所述封盖部设置成面向能够将液滴放出到记录介质上的多个单位头; 分别与所述多个封盖部连通的多个小室; 抽吸部分，抽吸小室的内部; 以及独立地控制小室的内部的气密状态的多个阀机构。 本发明还提供了配备有该维护装置的记录装置。

    Ink jet recording method
    9.
    发明授权
    Ink jet recording method 失效
    喷墨记录方法

    公开(公告)号：US5598195A

    公开(公告)日：1997-01-28

    申请号：US267029

    申请日：1994-06-21

    申请人： Toru Okamoto ,  Susumu Hirakata

    发明人： Toru Okamoto ,  Susumu Hirakata

    IPC分类号： B41J2/01 ,  B41J2/015 ,  B41J2/06 ,  C09D11/00 ,  C09D11/324 ,  C09D11/326 ,  C09D11/34 ,  C09D11/38 ,  C09D11/52

    CPC分类号： B41J2/06 ,  B41J2002/061

    摘要： The present invention provides an electrostatic attracting-type ink jet recording method by which an ink dot which has adhered to the recording medium or intermediate recording material can be prevented from affecting the drawing direction of the subsequently jetting ink, whereby an ink can be invariably allowed to jet onto a proper position to form an image with a high quality. An electrostatic attracting-type ink jet recording method is provided which comprises applying a voltage pulse across a recording electrode connected to a recording head and an opposing electrode disposed on the opposite side of a recording medium or intermediate recording material, whereby the resulting Coulomb's force causes an ink to jet onto said recording medium or intermediate recording material through an orifice in the recording head to form an image thereon, characterized in that the relaxation time of the ink calculated by multiplying the dielectric constant of the ink by the volume resistivity of the ink during the operation of ink jet recording is in the range of 0.01 to 2 times the ink jetting period.

    摘要翻译： 本发明提供了一种静电吸引型喷墨记录方法，通过该方法可以防止粘附到记录介质或中间记录材料上的墨点影响随后喷墨的拉伸​​方向，由此可以允许墨水 喷射到适当的位置以形成具有高质量的图像。 提供了一种静电吸引型喷墨记录方法，其包括在连接到记录头的记录电极和设置在记录介质或中间记录材料的相对侧上的相对电极上施加电压脉冲，由此产生的库仑力导致 墨水通过记录头中的孔口喷射到所述记录介质或中间记录材料上以在其上形成图像，其特征在于，通过将墨水的介电常数乘以墨水的体积电阻率而计算的墨水的弛豫时间 在喷墨记录操作期间，喷墨时间的0.01〜2倍。