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    Ink jet recording head and method of manufacturing the same
    2.
    发明授权
    Ink jet recording head and method of manufacturing the same 有权
    喷墨记录头及其制造方法

    公开(公告)号：US06382778B1

    公开(公告)日：2002-05-07

    申请号：US09494173

    申请日：2000-01-31

    申请人： Takayuki Iijima ,  Tsuyoshi Kitahara ,  Noriaki Okazawa

    发明人： Takayuki Iijima ,  Tsuyoshi Kitahara ,  Noriaki Okazawa

    IPC分类号： B41J205

    CPC分类号： B41J2/14 ,  B29C45/2628 ,  B41J2/16 ,  B41J2/1623 ,  B41J2/1637 ,  B41J2/17503 ,  B41J2/1752

    摘要： An ink jet recording head having a head body for ejecting ink and ink supply channels for introducing ink supplied from an ink tank to the head body is disclosed. The recording head inventively and uniquely includes a channel forming plate having grooves and a sealing plate fastened to the channel forming plate for closing the openings of the grooves in a sealing fashion to form the channels. The resultant recording head is easy in working and assembling, and reduced in size.

    摘要翻译： 公开了一种喷墨记录头，其具有用于喷射墨水的头本体和用于将从墨罐供应的墨水引入头体的墨供给通道。 记录头发明地且唯一地包括具有凹槽的通道形成板和紧固到通道形成板的密封板，用于以密封方式封闭凹槽的开口以形成通道。 所得记录头在工作和组装中容易，并且尺寸减小。

    Ink jet recording head provided with a vibrator unit
    3.
    发明授权
    Ink jet recording head provided with a vibrator unit 有权
    具有振动器单元的喷墨记录头

    公开(公告)号：US06626524B2

    公开(公告)日：2003-09-30

    申请号：US09968281

    申请日：2001-10-02

    申请人： Noriaki Okazawa ,  Hiroshige Owaki ,  Tsuyoshi Kitahara ,  Tomoaki Takahashi ,  Takayuki Iijima

    发明人： Noriaki Okazawa ,  Hiroshige Owaki ,  Tsuyoshi Kitahara ,  Tomoaki Takahashi ,  Takayuki Iijima

    IPC分类号： B41J2045

    CPC分类号： B41J2/14274 ,  B41J2002/14362

    摘要： In a vibrator unit, at least one piezoelectric vibrator is fixed on a base member in a cantilevered manner, such that a first region of the piezoelectric vibrator is fixed on a first face of the base member. A resin case is formed with a housing space extending through a first end face to a second end face thereof. The housing space includes a first housing part which opens to the first end face of the case, a second housing part which continues to the first housing part, and a third housing part which continues to the second housing part. In the first housing part, a part of the piezoelectric vibrator except for the first region is housed. The second housing part is defined by a first inner face extending in a first direction which is parallel with an extending direction of the piezoelectric vibrator, on which a first part of a second face of the base member which is opposite to the first face is bonded, and a second inner face extending in a second direction which is perpendicular to the first direction, on which a part of a third face which connects the first face and the first part of the second face is bonded. The third housing part is isolated from a part of the base member which includes a second part of the second face.

    摘要翻译： 在振动器单元中，至少一个压电振动器以悬臂方式固定在基座构件上，使得压电振动器的第一区域固定在基座构件的第一面上。 树脂壳体形成有通过其第一端面延伸到其第二端面的容纳空间。 所述收容空间包括通向所述壳体的第一端面的第一壳体部分，与所述第一壳体部分连续的第二壳体部分，以及继续到所述第二壳体部分的第三壳体部分。 在第一壳体部分中，容纳除了第一区域之外的压电振动器的一部分。 所述第二壳体部分由与所述压电振动器的延伸方向平行的第一方向延伸的第一内表面形成，所述基部构件的与所述第一面相对的第二面的第一部分接合在所述第一内表面上 以及与第一方向垂直的第二方向延伸的第二内面，第一面与第二面的第一部分连接的第三面的一部分被接合。 第三壳体部分与包括第二面的第二部分的基部构件的一部分隔离。

    Focus servo controlling apparatus, information reproducing apparatus and information recording apparatus
    8.
    发明授权
    Focus servo controlling apparatus, information reproducing apparatus and information recording apparatus 失效
    聚焦伺服控制装置，信息再现装置和信息记录装置

    公开(公告)号：US06731574B1

    公开(公告)日：2004-05-04

    申请号：US09684798

    申请日：2000-10-10

    申请人： Shinichiro Abe ,  Takayuki Iijima

    发明人： Shinichiro Abe ,  Takayuki Iijima

    IPC分类号： G11B700

    CPC分类号： G11B7/0945 ,  G11B7/0946 ,  G11B11/10576 ,  G11B11/10597

    摘要： A focus servo control is performed by changing a condition of a focus servo loop from an open condition to a close condition in correspondence with a level of a reflection light signal, which is obtained as a reflection light of a light beam reflected from an information record medium is detected by a light receiving element such as an optical pickup. A focus servo controlling apparatus is provided with a disturbance level detecting device such as a servo control circuit for detecting a level of a disturbance light signal, which is obtained as a disturbance light other than the reflection light is received by the light receiving element; and a controlling device such as a system controller for setting a level, which is larger than the level of the disturbance light signal detected by the disturbance level detecting device, as a threshold level and for changing the condition of the focus servo loop from the open condition to the close condition on the basis of a timing when the level of the reflection light signal becomes equal to or larger than the set threshold level.

    摘要翻译： 通过将聚焦伺服环路的条件从打开状态改变为接近状态，与反射光信号的电平相对应地进行聚焦伺服控制，反射光信号的电平作为从信息记录反射的光束的反射光获得 介质由诸如光学拾取器的光接收元件检测。 聚焦伺服控制装置设置有干扰电平检测装置，例如用于检测干扰光信号的电平的伺服控制电路，该干扰光信号的电平是由光接收元件接收的除了反射光之外的干扰光获得的; 以及诸如系统控制器的控制装置，用于将大于由干扰电平检测装置检测的干扰光信号的电平的电平设置为阈值电平，并且用于将聚焦伺服环路的状态从开路 基于反射光信号的电平变得等于或大于设定的阈值电平的定时，使其处于关闭状态。