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    Magnetooptical recording medium and information recording and reproducing methods using the recording medium
    2.
    发明授权
    Magnetooptical recording medium and information recording and reproducing methods using the recording medium 失效
    磁光记录介质和使用记录介质的信息记录和再现方法

    公开(公告)号：US5889739A

    公开(公告)日：1999-03-30

    申请号：US774721

    申请日：1997-01-03

    申请人： Naoki Nishimura ,  Hiroshi Omata ,  Kazuoki Honguu

    发明人： Naoki Nishimura ,  Hiroshi Omata ,  Kazuoki Honguu

    IPC分类号： G11B11/10 ,  G11B11/105 ,  G11B5/66

    CPC分类号： G11B11/10584 ,  G11B11/10508 ,  G11B11/10515 ,  G11B11/10586 ,  Y10S428/90 ,  Y10T428/265

    摘要： A method of recording information on and reproducing information from a magnetooptical recording medium which includes first and second magnetic layers. The method includes the step of projecting a light spot onto the medium. When reproducing information, the light spot is projected onto the medium from the side of the magnetic layer. In this method only a high temperature region of the second magnetic layer within a light spot projection portion is changed to a perpendicular magnetization film so that information recorded in the first magnetic layer is transferred to the perpendicular magnetization film of the second magnetic layer. In addition, information which is transferred to the second magnetic layer is detected by using reflected light from the medium which is subjected to the magneto-optic effect from the perpendicular magnetization film of the second magnetic layer. When recording information, a magnetic field is applied, whose magnetization direction is modulated according to information, to a light spot projection portion of the medium so the magnetization of the second magnetic layer is oriented to the direction of the applied magnetic field, and the magnetization of the second magnetic layer is transferred to the first magnetic layer to form a record bit.

    摘要翻译： 一种在包括第一和第二磁性层的磁光记录介质上记录和再现信息的方法。 该方法包括将光点投射到介质上的步骤。 当再现信息时，光点从磁性层的一侧投射到介质上。 在这种方法中，仅将光点投影部分内的第二磁性层的高温区域变为垂直磁化膜，使得记录在第一磁性层中的信息被传递到第二磁性层的垂直磁化膜。 此外，通过使用来自第二磁性层的垂直磁化膜受到磁光效应的介质的反射光来检测转移到第二磁性层的信息。 当记录信息时，将其磁化方向根据信息调制的磁场施加到介质的光点投影部分，使得第二磁性层的磁化取向为施加的磁场的方向，并且磁化 的第二磁性层被转移到第一磁性层以形成记录位。

    Magnetooptical recording medium and information recording and reproducing methods using the recording medium
    4.
    再颁专利
    Magnetooptical recording medium and information recording and reproducing methods using the recording medium 有权
    磁光记录介质和使用记录介质的信息记录和再现方法

    公开(公告)号：USRE38501E1

    公开(公告)日：2004-04-20

    申请号：US09820734

    申请日：2001-03-30

    申请人： Naoki Nishimura ,  Hiroshi Omata

    发明人： Naoki Nishimura ,  Hiroshi Omata

    IPC分类号： G11B566

    CPC分类号： G11B11/10515 ,  G11B11/10508 ,  G11B11/10584 ,  G11B11/10586

    摘要： A method of recording information on and reproducing information from a magnetooptical recording medium which includes first and second magnetic layers. The method includes the step of projecting a light spot onto the medium. When reproducing information, the light spot is projected onto the medium from the side of the magnetic layer. In this method only a high temperature region of the second magnetic layer within a light spot projection portion is changed to a perpendicular magnetization film so that information recorded in the first magnetic layer is transferred to the perpendicular magnetization film of the second magnetic layer. In addition, information which is transferred to the second magnetic layer is detected by using reflected light from the medium which is subjected to the magneto-optic effect from the perpendicular magnetization film of the second magnetic layer. When recording information, a magnetic field is applied, whose magnetization direction is modulated according to information, to a light spot projection portion of the medium so the magnetization of the second magnetic layer is oriented to the direction of the applied magnetic field, and the magnetization of the second magnetic layer is transferred to the first magnetic layer to form a record bit.

    Synchronous motor
    5.
    发明授权
    Synchronous motor 失效
    同步电机

    公开(公告)号：US4410818A

    公开(公告)日：1983-10-18

    申请号：US419621

    申请日：1982-09-17

    申请人： Hiroshi Omata ,  Saichi Katumata

    发明人： Hiroshi Omata ,  Saichi Katumata

    IPC分类号： H02K21/14 ,  H02K7/118 ,  H02K7/10

    CPC分类号： H02K7/1185

    摘要： A synchronous motor includes a reduction gear train operatively connecting a rotor to an output shaft. A retaining member is rotatably mounted on and frictionally engages the first gear member of the reduction gear train for angular movement about the axis thereof, the first gear member being in mesh with a drive gear on the rotor. The retaining member has an abutment lug which is engageable with the engaging portion when the rotor is rotated in its reverse direction whereupon the engaging portion rebounds from the lug to cause the rotor to rotate in its normal direction. The shaft of the first gear member is parallel to the axis of rotation of the rotor and is disposed at a position angularly displaced about the axis of the rotor from a predetermined point of the rotor by an angle of 360.degree./P x n when said engaging portion is brought into engagement with the abutment lug wherein P is the number of the magnetic poles around said rotor and n is an integer (0, 1, 2, 3 . . . ).

    摘要翻译： 同步电动机包括将转子可操作地连接到输出轴的减速齿轮系。 保持构件可旋转地安装在减速齿轮系的第一齿轮构件上并与其摩擦接合，用于围绕其轴线进行角运动，第一齿轮构件与转子上的驱动齿轮啮合。 保持构件具有邻接突起，当转子沿其相反方向旋转时，该接合突起可与接合部接合，从而接合部分从凸耳反弹以使转子沿正常方向旋转。 第一齿轮构件的轴平行于转子的旋转轴线，并且当所述接合件处于360°/ P×n的角度时，被设置在从转子的预定点绕转子的轴线成角度位移的位置处于360°/ 部分与邻接接片接合，其中P是围绕所述转子的磁极数，n是整数（0,1,2,3 ...）。

    Optical recording medium with prepit areas having reflectivity higher than land areas
    7.
    发明授权
    Optical recording medium with prepit areas having reflectivity higher than land areas 失效
    具有比地面积高的反射率的预凹坑区域的光学记录介质

    公开(公告)号：US5398232A

    公开(公告)日：1995-03-14

    申请号：US922777

    申请日：1992-07-31

    申请人： Hiroshi Omata

    发明人： Hiroshi Omata

    IPC分类号： G11B7/00 ,  G11B7/0045 ,  G11B7/013 ,  G11B7/24 ,  G11B7/254 ,  G11B11/105

    CPC分类号： G11B11/10584 ,  G11B11/10578 ,  G11B7/24085 ,  G11B7/2578 ,  G11B2007/24306 ,  G11B2007/2571 ,  G11B2007/25713 ,  G11B7/2534

    摘要： An optical recording medium is provided with optical guide grooves and prepits representing for example address data, in a land portion sandwiched between the grooves. The reflectivity in the bottom portion of the prepits is made higher than that of the land portion. An antireflection film is provided on the medium such that, in case where the reflectivity of the antireflection film decreases with the increase in the thickness of the antireflection film, the thickness of the antireflection film on the bottom of the prepits is selected smaller than that on the land portion. In the case where reflectivity of the antireflection film increases with the increase in the thickness of the antireflection film, the thickness of the antireflection film on the bottom of the prepits is selected larger than that on the land portion.

    摘要翻译： 光学记录介质在夹在槽之间的陆部中设置有表示地址数据的光导槽和预制凹坑。 将预浸料底部的反射率设定得高于陆地部分的反射率。 在该介质上设置防反射膜，使得防反射膜的反射率随防反射膜的厚度的增加而减小的情况下，预浸渍体底部的防反射膜的厚度选择为小于 陆地部分。 在防反射膜的反射率随着防反射膜厚度的增加而增加的情况下，预先凹坑底部的防反射膜的厚度被选择为大于在焊盘部分上的厚度。

    Timer switch
    8.
    发明授权
    Timer switch 失效
    定时开关

    公开(公告)号：US4415785A

    公开(公告)日：1983-11-15

    申请号：US271616

    申请日：1981-06-08

    申请人： Kuniaki Uno ,  Saichi Katumata ,  Toshio Tanaka ,  Hiroshi Omata

    发明人： Kuniaki Uno ,  Saichi Katumata ,  Toshio Tanaka ,  Hiroshi Omata

    IPC分类号： H01H43/10 ,  G04C23/14 ,  H01H43/12

    CPC分类号： H01H43/125

    摘要： A timer switch comprises a cam member of a generally disc shape having a cam surface at its periphery. The cam surface is stepped to provide a depressed portion and a shoulder portion adjacent thereto. The cam surface has a notch formed in the shoulder portion and opening to one side of the cam member. The cam member is operatively connected to a motor for rotation. A shaft is mounted on a casing for rotation about and displacement along the axis thereof. The cam member is fixedly mounted on the shaft for rotation therewith. An electrical switching means comprises a pair of first and second contact plates of a resilient material. The first contact plate is biased into sliding engagement with the cam surface. The second contact plate is biased normally into engagement with the first contact plate for energizing the motor to rotate the cam member. Upon depression of the first contact plate into the depressed portion the second contact plate engages the shoulder portion to de-energize the motor. Upon axial displacement of the shaft, the second contact plate is moved into the depressed portion through the notch so that the second contact plate is again biased into engagement with the first contact plate to reset the timer switch.

    摘要翻译： 定时器开关包括在其周边具有凸轮表面的大致圆盘形状的凸轮构件。 凸轮表面是阶梯形的以提供与其相邻的凹陷部分和肩部。 凸轮表面具有形成在肩部中并且向凸轮构件的一侧开口的凹口。 凸轮构件可操作地连接到电动机用于旋转。 轴安装在壳体上，用于围绕其轴线旋转和移动。 凸轮构件固定地安装在轴上以与其一起旋转。 电开关装置包括一对弹性材料的第一和第二接触板。 第一接触板被偏置成与凸轮表面滑动接合。 第二接触板通常与第一接触板接合，以使电动机激励以使凸轮部件旋转。 在将第一接触板压入凹部中时，第二接触板接合肩部以使电动机断电。 在轴的轴向位移时，第二接触板通过凹口移动到凹陷部分中，使得第二接触板再次被偏压成与第一接触板接合以复位定时器开关。