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1. 发明授权

US06778203B2 Dynamic pressure, air bearing type polygonal scanner and method of producing the same 失效
标题翻译：动态压力，空气轴承型多边形扫描器及其制造方法
公开(公告)号：US06778203B2
公开(公告)日：2004-08-17
申请号：US10096250
申请日：2002-03-13
申请人： Yukio Itami , Mitsuo Suzuki
发明人： Yukio Itami , Mitsuo Suzuki
IPC分类号： B41J247
CPC分类号： G02B26/121
摘要： A polygonal scanner of the present invention includes a rotary body including a ceramic rotary sleeve and a metallic cylindrical member shrinkage-fitted on the rotary sleeve. The cylindrical member is formed with mirror surfaces constituting a polygonal mirror. A dynamic pressure, air bearing supports the rotary body. The mirror surfaces overlap the rotary sleeve in the axial direction of the rotary sleeve. A hole greater in diameter than the dynamic pressure, air bearing is formed in the top wall of the cylindrical member. The cylindrical member includes a stress removing portion positioned between the mirror surfaces and the rotary sleeve for removing a stress ascribable to shrinkage-fitting.
摘要翻译：本发明的多边形扫描仪包括：旋转体，其包括陶瓷旋转套筒和收缩配合在旋转套筒上的金属圆柱形构件。圆柱形构件形成有构成多面镜的镜面。动态压力，空气轴承支撑旋转体。镜面在旋转套筒的轴向上与旋转套筒重叠。直径大于动压力的孔，在圆柱形构件的顶壁上形成空气轴承。圆柱形构件包括位于反射镜表面和旋转套筒之间的应力去除部分，用于去除由于收缩配合而引起的应力。

2. 发明授权

US06281609B1 Direct-current brushless motor, and polygon scanner and image forming apparatus having the same and a method thereof 有权
标题翻译：直流无刷电动机，多边形扫描器及其成像装置及其方法
公开(公告)号：US06281609B1
公开(公告)日：2001-08-28
申请号：US09321886
申请日：1999-05-28
申请人： Yukio Itami , Mitsuo Suzuki
发明人： Yukio Itami , Mitsuo Suzuki
IPC分类号： H02K1100
CPC分类号： G02B26/121 , H02K3/28 , H02K21/22 , H02K29/08
摘要： A direct-current (DC) brushless motor is provided for realizing an easy winding operation, a flat shape, effective utilization of a magnetic force, improved magnetic characteristics of a stator core, and a good rotation driving efficiency particularly at a higher rotational speed region. The DC brushless motor switches conduction to windings wound around a stator core fixedly disposed corresponding to a rotatable rotor on which a permanent magnet is fixed, to generate a rotating magnetic field which causes the rotor to rotate. The DC brushless motor includes a permanent magnet having n magnetized poles, where n is an even number, a rotatably held rotor on which the permanent magnet is fixed, a stator core having T-shaped pole shoes corresponding to the magnetic poles of the permanent magnet, windings fixed on the stator core and including a plurality of phases for selectively generating magnetic polarities in sequence, a driver circuit for switching conduction to the windings, and a rotating position detector for detecting a rotating position of the permanent magnet. The windings are divided into a plurality of winding groups for generating magnetic polarities in a plurality of the windings so as to produce a magnetic repellent force or a magnetic attractive force between all the magnetic poles of the permanent magnet and T-shaped pole shoes of the stator core associated with selected phases by the driver circuit based on a rotating position detected by the rotating position detector.
摘要翻译：提供直流（DC）无刷电动机，用于实现易于卷绕操作，扁平形状，有效利用磁力，改善定子铁心的磁特性以及良好的旋转驱动效率，特别是在较高转速区域。 DC无刷电动机将传导绕组缠绕在与固定有永磁体的可旋转转子相对应地固定设置的定子芯上缠绕的绕组，以产生使转子旋转的旋转磁场。直流无刷电动机包括具有n个磁极的永磁体，其中n为偶数，固定有永磁体的可旋转地保持的转子，具有对应于永磁体的磁极的T形极靴的定子铁心固定在定子铁芯上的线圈，并且包括用于依次选择性地产生磁极性的多个相，用于切换到绕组的导通的驱动电路，以及用于检测永磁体的旋转位置的旋转位置检测器。绕组被分成多个绕组，用于在多个绕组中产生磁极性，从而在永磁体的所有磁极和T型极靴的所有磁极之间产生磁驱动力或磁吸引力基于由旋转位置检测器检测到的旋转位置由驱动器电路与选定相位相关联的定子铁心。

3. 发明授权

US5606448A Polygon scanner and production process thereof 失效
标题翻译：多边形扫描仪及其生产工艺
公开(公告)号：US5606448A
公开(公告)日：1997-02-25
申请号：US035791
申请日：1993-03-23
申请人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
发明人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
IPC分类号： F16C17/02 , F16C33/10 , G02B7/182 , G02B26/12 , H02K5/16 , H02K7/09 , H02K21/24 , H02K29/06 , G02B26/08
CPC分类号： F16C33/107 , F16C17/026 , G02B26/121 , G02B7/1821 , H02K21/24 , H02K29/06 , H02K5/1677 , H02K7/09 , Y10S359/90
摘要： A polygon scanner has a lighter rotating shaft on which a polygon mirror is mounted, to prevent a positional deviation of the polygon mirror from the rotating shaft in high speed rotation, in which the rotating shaft is supported through a dynamic pressure air bearing on a fixed shaft, in which the polygon mirror and motor constituent members are mounted on the rotating shaft, and in which the rotating shaft and the polygon mirror are made of respective light weight materials matched with each other in coefficient of thermal expansion, for example of aluminum or an aluminum alloy. Further, an anodic oxide film is formed at least on a portion where the rotating shaft could contact with the fixed shaft, and floating means is provided for constantly floating the rotating shaft relative to the fixed shaft upward in an axial direction thereof. A process for producing the polygon scanner comprises making a predetermined masking on a portion where the rotating shaft could contact with the fixed shaft, prior to an anodic oxidation treatment to form an anodic oxide film on the portion, and then performing the anodic oxidation treatment, whereby, during the treatment, forming an anodic oxide film and a pattern of recesses and protrusions for dynamic pressure generation corresponding to a pattern of the masking, which are constituent elements of a dynamic pressure air bearing.
摘要翻译：多边形扫描器具有安装有多面镜的较轻的旋转轴，以防止多角镜从高速旋转中的旋转轴的位置偏离，其中旋转轴通过动态压力空气轴承支撑在固定的轴，其中多面镜和电动机构成部件安装在旋转轴上，并且其中旋转轴和多面镜由相对于热膨胀系数彼此匹配的各种重量轻的材料制成，例如铝或铝合金。此外，至少在旋转轴可以与固定轴接触的部分上形成阳极氧化膜，并且设置有浮动装置，用于使旋转轴相对于固定轴在轴向上向上上升。多边形扫描仪的制造方法，在阳极氧化处理之前，在旋转轴与固定轴接触的部分上进行规定的掩模，在该部分上形成阳极氧化膜，然后进行阳极氧化处理，由此，在处理过程中，形成阳极氧化膜和用于动压产生的凹凸图案，其对应于作为动压空气轴承的组成元件的掩模图案。

4. 发明授权

US5969844A Rotor and polygon scanner that incorporates the rotor 失效
标题翻译：包含转子的转子和多边形扫描仪
公开(公告)号：US5969844A
公开(公告)日：1999-10-19
申请号：US14568
申请日：1998-01-28
申请人： Yukio Itami , Mitsuo Suzuki , Wataru Kashima
发明人： Yukio Itami , Mitsuo Suzuki , Wataru Kashima
IPC分类号： F16C17/10 , F16C32/00 , G02B26/12 , G02B26/08
CPC分类号： G02B26/121
摘要： A rotor includes a hollow rotating shaft that is supported in a non-contact state by a radial self acting air bearing. The rotor also includes a contacting portion for positioning a rotating member in a rotating shaft direction that contacts with the rotating member from the rotating shaft direction. An engaging portion is included for positioning the rotating member in a direction perpendicular to the rotating shaft direction that engages with an inner surface of the rotating member. A holding portion is formed either in plural portions in a peripheral direction or as a single integrated portion that extends in the peripheral direction near the rotating member that is positioned by the contacting portion and the engaging portion, and that presses the rotating member from an opposite side of the contacting portion by deformation of one portion or a whole portion of the holding portion, and positions and holds the rotating member.
摘要翻译：转子包括通过径向自动空气轴承以非接触状态支撑的中空旋转轴。转子还包括用于沿旋转轴方向定位旋转构件的接触部分，该转动轴线方向与旋转构件从旋转轴方向接触。包括接合部分，用于沿与旋转构件的内表面接合的与旋转轴方向垂直的方向定位旋转构件。保持部在圆周方向上形成为多个部分，或者形成为在由接触部和接合部定位的旋转部件附近沿周向延伸的单一整体部，并且将旋转部件从相反的方向通过保持部的一部分或整个部分的变形而使接触部分的一侧，并且定位和保持旋转构件。

5. 发明授权

US5769544A Dynamic pressure pneumatic bearing device and manufacturing method thereof 失效
标题翻译：动压气动轴承装置及其制造方法
公开(公告)号：US5769544A
公开(公告)日：1998-06-23
申请号：US707499
申请日：1996-09-24
申请人： Mitsuo Suzuki , Yukio Itami , Kunio Ikeda , Yuzuru Kudo , Takao Abe , Yoshihiro Takahashi , Kiyoshi Shibuya
发明人： Mitsuo Suzuki , Yukio Itami , Kunio Ikeda , Yuzuru Kudo , Takao Abe , Yoshihiro Takahashi , Kiyoshi Shibuya
IPC分类号： F16C17/02 , F16C33/10
CPC分类号： F16C33/107 , F16C17/02 , F16C17/026
摘要： A dynamic pressure pneumatic bearing device has a groove for generating a dynamic pressure and formed on an inner circumferential face of a rotating shaft or an outer circumferential face of a fixed shaft; each of these shafts being formed by an aluminum alloy; and a wear resisting film formed on each of the inner circumferential face and the outer circumferential face. Another dynamic pressure pneumatic bearing device is constructed by a rotating shaft having a cylindrical hollow and a fixed shaft inserted into this hollow. The fixed shaft has a bearing face opposed to an inner circumferential face of the rotating shaft and separated from this inner circumferential face with a predetermined clearance. Herringbone grooves for generating a dynamic pressure and recessed portions having the same depth as the herringbone grooves are formed on the bearing face.
摘要翻译：动压气动轴承装置具有用于产生动压的槽，形成在旋转轴的内周面或固定轴的外周面上; 这些轴中的每一个由铝合金形成; 以及形成在内周面和外周面的每一个上的耐磨膜。另一动压气动轴承装置由一个旋转轴构成，该轴具有插入该中空部的圆柱形中空和固定轴。固定轴具有与旋转轴的内周面相对的轴承面并与该内周面以预定的间隙分离。用于产生动压的人字形槽和与人字槽相同深度的凹部形成在支承面上。

6. 发明授权

US5574591A Polygon scanner and production process thereof 失效
标题翻译：多边形扫描仪及其生产工艺
公开(公告)号：US5574591A
公开(公告)日：1996-11-12
申请号：US383929
申请日：1995-02-06
申请人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
发明人： Mitsuo Suzuki , Yukio Itami , Yoshio Hashimoto , Koji Tsukahara , Yoshihiro Takahashi , Takao Abe
IPC分类号： F16C17/02 , F16C33/10 , G02B7/182 , G02B26/12 , H02K5/16 , H02K7/09 , H02K21/24 , H02K29/06 , G02B26/08
CPC分类号： F16C33/107 , F16C17/026 , G02B26/121 , G02B7/1821 , H02K21/24 , H02K29/06 , H02K5/1677 , H02K7/09 , Y10S359/90
摘要： A polygon scanner has a lighter rotating shaft on which a polygon mirror is mounted, to prevent a positional deviation of the polygon mirror from the rotating shaft in high speed rotation, in which the rotating shaft is supported through a dynamic pressure air bearing on a fixed shaft, in which the polygon mirror and motor constituent members are mounted on the rotating shaft, and in which the rotating shaft and the polygon mirror are made of respective light weight materials matched with each other in coefficient of thermal expansion, for example of aluminum or an aluminum alloy. Further, an anodic oxide film is formed at least on a portion where the rotating shaft could contact with the fixed shaft, and floating means is provided for constantly floating the rotating shaft relative to the fixed shaft upward in an axial direction thereof. A process for producing the polygon scanner comprises making a predetermined masking on a portion where the rotating shaft could contact with the fixed shaft, prior to an anodic oxidation treatment to form an anodic oxide film on the portion, and then performing the anodic oxidation treatment, whereby, during the treatment, forming an anodic oxide film and a pattern of recesses and protrusions for dynamic pressure generation corresponding to a pattern of the masking, which are constituent elements of a dynamic pressure air bearing.
摘要翻译：多边形扫描器具有安装有多面镜的较轻的旋转轴，以防止多角镜从高速旋转中的旋转轴的位置偏离，其中旋转轴通过动态压力空气轴承支撑在固定的轴，其中多面镜和电动机构成部件安装在旋转轴上，并且其中旋转轴和多面镜由相对于热膨胀系数彼此匹配的各种重量轻的材料制成，例如铝或铝合金。此外，至少在旋转轴可以与固定轴接触的部分上形成阳极氧化膜，并且设置有浮动装置，用于使旋转轴相对于固定轴在轴向上向上上升。多边形扫描仪的制造方法，在阳极氧化处理之前，在旋转轴可以与固定轴接触的部分上进行规定的掩模，在该部分上形成阳极氧化膜，然后进行阳极氧化处理，由此，在处理过程中，形成阳极氧化膜和用于动压产生的凹凸图案，其对应于作为动压空气轴承的组成元件的掩模图案。

7. 发明授权

US5069515A Optical deflector of air bearing type 失效
标题翻译：空气轴承类型的光学偏转器
公开(公告)号：US5069515A
公开(公告)日：1991-12-03
申请号：US584615
申请日：1990-09-19
申请人： Yukio Itami , Mitsuo Suzuki , Teruo Ohne , Kenichi Hoshi , Eiri Sagae , Yoshio Hashimoto
发明人： Yukio Itami , Mitsuo Suzuki , Teruo Ohne , Kenichi Hoshi , Eiri Sagae , Yoshio Hashimoto
IPC分类号： G02B26/12
CPC分类号： G02B26/121 , F16C17/026 , F16C32/0427
摘要： An optical deflector of an air bearing type has a fixed shaft; a rotary shaft having a hollow portion fitted onto the fixed shaft; a support device disposed between an end portion of the fixed shaft and an end portion of the hollow portion opposite thereto and supporting the rotary shaft in an axial direction thereof; a radial air bearing formed between an inner circumferential face of the hollow portion and an outer circumferential face of the fixed shaft; a polygon mirror fixed to the rotary shaft; a driving device for rotating the rotary shaft; a device for deflecting light irradiated onto the polygon mirror by rotating the rotary shaft through the driving device; a device for forming a flange for fixing the polygon mirror thereto integrally with the rotary shaft; and a device for setting an upper end portion of the support device on a fixed shaft side thereof to be lower than an upper end face of the polygon mirror. The support device has a first magnet directly attached onto an end face of the fixed shaft, a second magnet opposite to the first magnet and attached to the hollow portion of the rotary shaft, and a third magnet opposite to the second magnet and attached to a casing for covering the polygon mirror. Magnetic poles of the first, second and third magnets are opposite to each other to generate magnetic repulsive force.
摘要翻译：空气轴承型光偏转器具有固定轴; 具有安装在所述固定轴上的中空部的旋转轴; 支撑装置，其设置在所述固定轴的端部和与所述固定轴的端部相对的中空部的端部之间，并且沿其轴向方向支撑所述旋转轴; 形成在所述中空部的内周面与所述固定轴的外周面之间的径向空气轴承; 固定在旋转轴上的多面镜; 用于旋转所述旋转轴的驱动装置; 用于通过驱动装置旋转旋转轴来偏转照射到多面镜上的光的装置; 用于形成用于将所述多角镜固定到所述旋转轴上的凸缘的装置; 以及用于将固定轴侧的支撑装置的上端部设定为低于多面镜的上端面的装置。支撑装置具有直接附接到固定轴的端面上的第一磁体，与第一磁体相对的第二磁体并且附接到旋转轴的中空部分，以及与第二磁体相对的第三磁体，并附接到第一磁体用于覆盖多面镜的外壳。第一，第二和第三磁体的磁极彼此相对以产生磁性排斥力。

8. 发明授权

US5726699A Closed type polygon scanner 失效
标题翻译：闭式多边形扫描仪
公开(公告)号：US5726699A
公开(公告)日：1998-03-10
申请号：US440350
申请日：1995-05-12
申请人： Yukio Itami , Mitsuo Suzuki
发明人： Yukio Itami , Mitsuo Suzuki
IPC分类号： B41J2/47 , G02B26/12 , G02B26/00
CPC分类号： B41J2/471 , G02B26/121
摘要： A closed type polygon scanner has a housing, a rotor which is rotatively supported to a rotating shaft fixed to the housing and which includes a polygon mirror, a motor which generates a magnetic force to the rotor and rotates the rotor, and a cover. The cover includes an outer peripheral portion fixed to an outer peripheral portion of the housing, and covers the rotor together with the housing. An opening is formed at a predetermined portion in the cover facing a mirror surface of the polygon mirror through which a laser beam passes, and a window member is fixed to the opening in closed state. An inner peripheral surface of the cover facing the mirror surface of the polygon mirror is formed cylindrically and almost coaxially to a rotating axis of the rotating shaft, and a width in the rotating axis direction of the opening is set to a predetermined width relative to a width of the polygon mirror so that turbulent air generated around the polygon mirror is reduced.
摘要翻译：封闭型多边形扫描器具有壳体，转子，其被可旋转地支撑到固定到壳体的旋转轴上，该转子包括多面镜，向转子产生磁力并使转子旋转的电动机和盖。所述盖包括固定到所述壳体的外周部的外周部，并且与所述壳体一起覆盖所述转子。开口形成在面对激光束通过的多面镜的镜面的盖的预定部分处，并且窗构件在关闭状态下固定到开口。面对多面镜的镜面的盖的内周面与旋转轴的旋转轴成圆筒状且几乎同轴，开口的旋转轴方向的宽度相对于多角镜的宽度，使得在多面镜周围产生的湍流减少。

9. 发明授权

US06580186B1 Balance correcting method for a high-speed rotatable body, a dynamic pressure bearing, and an optical scanning apparatus utilizing the dynamic pressure bearing 有权
标题翻译：用于高速旋转体，动压轴承和利用动压轴承的光学扫描装置的平衡校正方法
公开(公告)号：US06580186B1
公开(公告)日：2003-06-17
申请号：US09633867
申请日：2000-08-07
申请人： Mitsuo Suzuki , Yukio Itami
发明人： Mitsuo Suzuki , Yukio Itami
IPC分类号： H02K524
CPC分类号： F16C33/107 , F16C17/026 , F16F15/32 , G02B26/121 , H02K7/04 , H02K7/086 , H02K7/09 , H02K15/165 , Y10T74/2121
摘要： A balance correcting method, a dynamic pressure bearing, and an optical scanning apparatus. For balance correction a method of attaching weight to the rotatable body and another method of partly removing the rotatable body are jointly used. At the time of a first balance correcting process step, a balance correction is performed by applying adhesive agent to a recess portion formed on a circular circumference of a polygon mirror or a recess portion constructed with a rotor flange. At the time of a second balance correcting process step, the polygon mirror is partly removed or the rotor flange is partly removed. The method can be applied to a dynamic pressure bearing capable of stabilizing a rotation balance and an optical scanning apparatus having a structure capable of not changing the direction of the reflection surface of the rotatable polygon mirror. The rotating shaft is supported in the radial direction by sucking air existing between the fixing shaft and the rotating shaft. In a dynamic pressure bearing, the rotating shaft is supported in a floating state from the above-mentioned fixing shaft.
摘要翻译：平衡校正方法，动压轴承和光学扫描装置。为了平衡校正，共同使用将重量附接到可旋转体的方法和部分地移除可旋转体的另一种方法。在第一平衡校正处理步骤时，通过将粘合剂施加到形成在多面镜的圆周上的凹部或由转子凸缘构成的凹部来进行平衡校正。在第二平衡校正处理步骤时，部分地去除多面镜或部分地去除转子凸缘。该方法可以应用于能够稳定旋转平衡的动压轴承和具有能够不改变可旋转多面镜的反射面的方向的结构的光学扫描装置。旋转轴通过吸附存在于固定轴和旋转轴之间的空气沿径向方向被支撑。在动压轴承中，旋转轴从上述固定轴以浮动状态支撑。

10. 发明授权

US6150779A Motor drive apparatus and method 有权
标题翻译：电机驱动装置及方法
公开(公告)号：US6150779A
公开(公告)日：2000-11-21
申请号：US384291
申请日：1999-08-26
申请人： Yukio Itami , Mitsuo Suzuki
发明人： Yukio Itami , Mitsuo Suzuki
IPC分类号： H02P6/20 , H02P6/24
CPC分类号： H02P6/24 , H02P6/20
摘要： A motor drive apparatus for driving a motor with power derived from a main power source, including a signal input device configured to input a start signal and a stop signal to initiate starting and stopping of the motor; a voltage regulator configured to output regulated electric power to the motor; and a semiconductor switching device disposed between the main power source and the voltage regulator, coupled to the signal input device, and configured to switch electric power from the main power source to the voltage regulator in accordance with the start signal input from the signal input device, and to shut off the electric power to the voltage regulator in accordance with the stop signal input from the signal input device.
摘要翻译：一种电动机驱动装置，用于驱动具有源自主电源的功率的电动机，该电动机驱动装置包括：信号输入装置，被配置为输入启动信号和停止信号，以启动电动机的起动和停止; 电压调节器，被配置为向所述电动机输出调节的电力; 以及半导体开关装置，其设置在所述主电源和所述电压调节器之间，耦合到所述信号输入装置，并且被配置为根据从所述信号输入装置输入的所述起始信号将电力从所述主电源切换到所述电压调节器并根据从信号输入装置输入的停止信号切断电压调节器的电力。

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