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    • 4. 发明授权
    • Magnetic circuit structure in rotary actuator
    • 旋转执行器中的磁路结构
    • US5731642A
    • 1998-03-24
    • US582331
    • 1996-01-05
    • Yoshinori Ogawa
    • Yoshinori Ogawa
    • G11B21/02G11B21/08H02K41/035H02K41/00G11B5/54
    • G11B21/02H02K41/0358G11B21/083
    • A magnetic circuit structure in a rotary actuator which can reduce the inductance of a coil while negligibly reducing a magnetic flux density between gaps. The magnetic circuit structure includes an E-shaped main yoke formed by integrally connecting a curved inner yoke, a curved center yoke, and a curved outer yoke. The E-shaped main yoke is manufactured by stacking a plurality of rolled steel plates. An inner magnet is mounted on the outer circumferential surface of the inner yoke opposed to the center yoke, and an outer magnet is mounted on the inner circumferential surface of the outer yoke opposed to the center yoke. A side yoke is magnetically attached to the open end of the E-shaped main yoke. A through hole extending in parallel to the axis of rotation of the rotary actuator is formed at a circumferential central portion of the center yoke.
    • 旋转致动器中的磁路结构可以减小线圈的电感,同时可以忽略不计地减小间隙之间的磁通密度。 磁路结构包括通过一体地连接弯曲内轭铁,弯曲中心轭铁和弯曲外轭铁形成的E形主轭铁。 E形主轭通过堆叠多个轧制钢板制造。 在与轭铁相对的内轭铁的外周面上安装有内磁铁,外磁铁安装在与轭铁相对的外磁轭的内周面上。 侧轭被磁性地附接到E形主轭的开口端。 在中心轭的周向中心部分处形成有平行于旋转致动器的旋转轴线延伸的通孔。
    • 6. 发明申请
    • Motor and method of manufacturing the same
    • 电动机和制造方法相同
    • US20060103243A1
    • 2006-05-18
    • US10396689
    • 2003-03-26
    • Yoshinori Ogawa
    • Yoshinori Ogawa
    • H02K37/14H02K5/16H02K37/12
    • H02K37/12H02K1/145H02K3/525
    • A motor in which drive coils are arranged in an axial direction of a cylindrical rotor magnet of which an outer peripheral surface is magnetized, the drive coils are cylindrical bodies having respectively center holes into which a rotor shaft is to be inserted, curling cases each of which is formed by bending a flat plate made of a magnetic material into a tubular shape, surround the drive coils, respectively, and surround a cylindrical surface of the rotor magnet with a predetermined gap therebetween, and portions of the surfaces of the curling cases, which face the drive coils associated therewith, serve as yoke parts, respectively, while other portions of the curling cases, which face the rotor magnet, are formed to be pole teeth, and also serve as yoke plates.
    • 驱动线圈沿着外周面被磁化的圆筒形转子磁体的轴向配置的电动机,驱动线圈是分别具有转子轴插入的中心孔的圆筒体, 其通过将由磁性材料制成的平板弯曲为管状而形成,分别围绕驱动线圈并且围绕转子磁体的圆柱形表面以预定的间隙包围,并且卷曲箱的表面的一部分, 其面对与之相关联的驱动线圈分别用作磁轭部分,而面向转子磁体的卷边壳体的其它部分形成为极齿,并且还用作磁轭板。
    • 9. 发明授权
    • Display driving device and liquid crystal module using the same
    • 显示驱动装置和使用其的液晶模块
    • US06459417B1
    • 2002-10-01
    • US09546344
    • 2000-04-10
    • Yukihisa OrisakaYoshinori Ogawa
    • Yukihisa OrisakaYoshinori Ogawa
    • G09G300
    • G09G3/3688G09G3/3677G09G2310/0283
    • A display driving device of the present invention includes: a group of source drivers having a bidirectional shift register and made up of a plurality of serially connected source drivers; and a start pulse signal as a single supply line, which is branched into two systems for supplying an externally supplied start pulse signal to each source driver, wherein the two systems of the branched single supply line are respectively connected to input terminals of the start pulse signal of source drivers at the both ends of the group of source drivers, and a transfer direction of the start pulse signal is switched with the single supply line by making one of the two systems of the start pulse signal conductive while making the other non-conductive within the group of source drivers.
    • 本发明的显示驱动装置包括:具有双向移位寄存器的一组源极驱动器,由多个串联的源极驱动器构成; 以及作为单个供电线的启动脉冲信号,其被分支为用于向每个源极驱动器提供外部提供的起始脉冲信号的两个系统,其中分支单电源线的两个系统分别连接到起始脉冲的输入端 在源极驱动器组的两端处的源极驱动器的信号,并且通过使两个起始脉冲信号的两个系统中的一个导通,同时使另一个非驱动信号导通,使得单个电源线切换起始脉冲信号的传送方向, 在源驱动器组内导电。
    • 10. 发明授权
    • Magnetic disk apparatus
    • 磁盘装置
    • US5910862A
    • 1999-06-08
    • US829783
    • 1997-03-31
    • Yoshinori OgawaYuji SasakiMitsuaki YoshidaKazunori ShikanoMasato Ishikawa
    • Yoshinori OgawaYuji SasakiMitsuaki YoshidaKazunori ShikanoMasato Ishikawa
    • G11B5/012G11B5/48G11B33/02
    • G11B25/043G11B5/4846H01R12/61
    • Disclosed is a magnetic disk apparatus constructed to reduce a track positional deviation of a magnetic head. This magnetic disk apparatus includes a rotary mechanism for rotating the magnetic disk and a rotary type actuator, provided with the magnetic head at its front end, which magnetic head has a write head and a read head, for moving the magnetic head in such a direction as to traverse tracks of the magnetic disk by making rotations about a rotary shaft. A distance A from the center of rotation of the rotary type actuator to the magnetic head is set equal to or larger than a distance B from the center of rotation of the rotary type actuator to the center of rotation of the magnetic disk. Even when separating a write element and a read element, the track positional deviation of the magnetic head can be reduced. This magnetic disk apparatus includes an enclosure accommodating both of a rotary mechanism and the rotary type actuator and having a base taking such a configuration that one side surface thereof is opened and a cover fitted in the base, wherein a side for separating the base and the cover is formed at a slant to a long side of the apparatus. This construction makes it possible to enhance a rigidity of the enclosure and reduce the track positional deviation of the magnetic head.
    • 公开了一种磁盘装置,其被构造为减小磁头的磁道位置偏差。 该磁盘装置包括用于旋转磁盘的旋转机构和在其前端设置有磁头的旋转型致动器,该磁头具有写入头和读取头,用于沿着该方向移动磁头 通过围绕旋转轴进行旋转而穿过磁盘的轨道。 从旋转型致动器的旋转中心到磁头的距离A被设定为等于或大于从旋转型致动器的旋转中心到磁盘旋转中心的距离B. 即使分离写入元件和读取元件,也可以减小磁头的轨迹位置偏差。 该磁盘装置包括容纳旋转机构和旋转型致动器两者的外壳,并且具有基部,其具有使其一个侧表面打开的结构和安装在基座中的盖,其中用于分离基座和 盖子形成为倾斜到设备的长边。 这种结构使得可以增强外壳的刚度并减小磁头的轨迹位置偏差。