公开(公告)号：US06664670B2

公开(公告)日：2003-12-16

申请号：US09798728

申请日：2001-03-02

申请人： Yoshimi Kikuchi ,  Daisuke Higuchi

发明人： Yoshimi Kikuchi ,  Daisuke Higuchi

IPC分类号： H02K524

CPC分类号： H02K7/04 ,  H02K21/222 ,  Y10T464/50

摘要： An automatic balancing apparatus may be mounted in a rotator body such as a spindle motor having a rotary shaft defining an axis of rotation. The automatic balancing apparatus has a plurality of balancing members rotatable about the axis of rotation in a non-contact manner. Each of the balancing members has a balance action section spaced a distance in a radial direction from the axis of rotation and a connection section that rotatably couples the balance action section to the axis of rotation. The balance action section has a mass that effects a balance correction action to cancel a rotational unbalance of the rotator body when the rotator body rotates at a rotational speed that exceeds a resonant rotational speed CR thereof. The connection section has a mass that substantially does not affect the balance correction action compared to the balance action section.

公开(公告)号：US5817817A

公开(公告)日：1998-10-06

申请号：US848179

申请日：1997-04-29

申请人： Hitoshi Maki ,  Shigeki Kato ,  Yoshimi Kikuchi

发明人： Hitoshi Maki ,  Shigeki Kato ,  Yoshimi Kikuchi

IPC分类号： C07B61/00 ,  C07C227/08 ,  C07C227/22 ,  C07C229/32 ,  C07C229/62 ,  C07D471/04 ,  C09B48/00

CPC分类号： C09B48/00 ,  C07C227/22 ,  C07C2101/16

摘要： A process for producing 2,5-di(arylamino)-3,6-dihydroterephthalic acid dialkyl ester having a high purity from 1,4-cyclohexanedione-2,5-di(carboxylic acid alkyl ester) at high yields for a short period of time; a process for producing quinacridone of which the byproduct content is small, from the above 2,5-di(arylamino)-3,6-dihydroterephthalic acid dialkyl ester; and a process for producing quinacridone of which the particle diameter is adjusted as desired, from the above 2,5-di(arylamino)-3,6-dihydroterephthalic acid dialkyl ester without adding a step of forming a pigment.

摘要翻译： 一种从1,4-环己二酮-2,5-二（羧酸烷基酯）以高产率生产具有高纯度的2,5-二（芳基氨基）-3,6-二氢对苯二甲酸二烷基酯的方法， 的时间 由上述2,5-二（芳基氨基）-3,6-二氢对苯二甲酸二烷基酯制备副产物含量小的喹吖啶酮的方法; 以及根据需要从上述2,5-二（芳基氨基）-3,6-二氢对苯二甲酸二烷基酯制备其粒径的喹吖啶酮的方法，而不添加形成颜料的步骤。

公开(公告)号：US4382665A

公开(公告)日：1983-05-10

申请号：US267447

申请日：1981-05-27

申请人： Mitsuo Eguchi ,  Yoshimi Kikuchi ,  Nobuyuki Ichino

发明人： Mitsuo Eguchi ,  Yoshimi Kikuchi ,  Nobuyuki Ichino

IPC分类号： G03B13/36 ,  G02B7/34 ,  G02B7/36 ,  H04N5/232 ,  G03B3/10 ,  G01J1/44 ,  H04N5/26

CPC分类号： G02B7/36

摘要： An automatic focusing device in which the intensity distributions of the images of an object which are formed by light beams passing through different portions of an optical system in a photographing device are detected as video signals. A correlation output is obtained from the video signals so that the focusing condition is detected from the peak position of the correlation output. When the peak position is not one for focalization, a drive direction signal is delivered to drive the optical system towards the focusing position. A low contrast detecting circuit is provided in which is counted how many times the correlation output becomes higher than a predetermined level in one focusing condition detecting operation, and when the count value reaches a predetermined value, the drive direction signal is made ineffected, so as to prevent the occurrence of a hunting phenomenon with the optical system.

摘要翻译： 一种自动聚焦装置，其中通过光照射装置中的光学系统的不同部分的光束形成的物体的图像的强度分布被检测为视频信号。 从视频信号获得相关输出，使得从相关输出的峰值位置检测聚焦条件。 当峰值位置不是用于聚焦的位置时，传送驱动方向信号以驱动光学系统朝向聚焦位置。 提供一种低对比度检测电路，其中在一次聚焦状态检测操作中将相关输出变得高于预定电平多少次，并且当计数值达到预定值时，使驱动方向信号受到影响，因此 以防止光学系统发生振荡现象。

公开(公告)号：US4381523A

公开(公告)日：1983-04-26

申请号：US224464

申请日：1981-01-12

申请人： Mitsuo Eguchi ,  Masahito Yoshida ,  Yoshifumi Kato ,  Nobuyuki Ichino ,  Yoshimi Kikuchi

发明人： Mitsuo Eguchi ,  Masahito Yoshida ,  Yoshifumi Kato ,  Nobuyuki Ichino ,  Yoshimi Kikuchi

IPC分类号： G03B13/36 ,  G02B7/28 ,  G02B7/34 ,  H04N5/232 ,  H04N3/26

CPC分类号： H04N5/23212

摘要： An automatic focusing device comprises a detector for detecting distributions of the images of an object which are formed by two light beams passing through two different points in a photographing optical system and for providing corresponding video signals. The video signals are processed to obtain an output signal representative of a relative positional relation between the video signals for use in establishing the optical system moving direction and the distance of movement of the focusing position, or to determine only the direction of movement of the optical system so that the optical system is moved in the direction thus determined to the focusing position. The automatic focusing operation can be accomplished without using movable members other than the photographing lens of the optical system, or in the case of using a movable member, the focusing operation can be achieved with high accuracy by operating the movable member only once.

摘要翻译： 自动对焦装置包括检测器，用于检测通过拍摄光学系统中的两个不同点的两个光束形成的对象的图像分布并提供对应的视频信号。 处理视频信号以获得表示用于建立光学系统移动方向和聚焦位置的移动距离的视频信号之间的相对位置关系的输出信号，或仅确定光学器件的移动方向 系统，使得光学系统沿着这样确定的方向移动到聚焦位置。 可以在不使用除了光学系统的拍摄镜头之外的可动构件的情况下实现自动聚焦操作，或者在使用可移动部件的情况下，可以通过仅操作可移动部件一次来实现高精度的聚焦操作。