ELECTRIC MOTOR CONTROL DEVICE
    12.
    发明申请
    ELECTRIC MOTOR CONTROL DEVICE 审中-公开
    电动马达控制装置

    公开(公告)号:US20130026955A1

    公开(公告)日:2013-01-31

    申请号:US13640688

    申请日:2010-04-28

    IPC分类号: H02P5/00

    CPC分类号: H02P27/085

    摘要: First and second inverters are each controlled based on pulse width modulation using a carrier signal. In order to decrease the noise caused by the first inverter and the second inverter, a frequency of a carrier signal of the first inverter and a frequency of a carrier signal of the second inverter are controlled. The frequency of the carrier signal of the first inverter is changed periodically or randomly within a first preset frequency range as time elapses. The frequency of the carrier signal of the second inverter is changed periodically or randomly within a second preset frequency range to avoid overlapping the first frequency range.

    摘要翻译: 第一和第二反相器各自基于使用载波信号的脉冲宽度调制进行控制。 为了降低由第一反相器和第二反相器引起的噪声,控制第一反相器的载波信号的频率和第二反相器的载波信号的频率。 随着时间的推移,第一反相器的载波信号的频率在第一预设频率范围内周期性地或随机地改变。 第二反相器的载波信号的频率在第二预设频率范围内周期性地或随机地改变,以避免与第一频率范围重叠。

    MAGNETIC RECORDING MEDIUM SUBSTRATE AND MAGNETIC RECORDING MEDIUM
    13.
    发明申请
    MAGNETIC RECORDING MEDIUM SUBSTRATE AND MAGNETIC RECORDING MEDIUM 审中-公开
    磁记录介质基片和磁记录介质

    公开(公告)号:US20100221582A1

    公开(公告)日:2010-09-02

    申请号:US12159175

    申请日:2006-12-13

    IPC分类号: G11B5/706

    CPC分类号: G11B5/7315 G11B5/855

    摘要: Provided is a magnetic recording medium substrate appropriate for a discrete medium and capable of fabricating a magnetic recording medium to/from which data can be written or read stably. Coaxial grooves (2) are formed on the surface of a resin substrate (1). The groove (2) has a width (T2) greater than a width (T1) of a track (3). Accordingly, when a magnetic layer is layered on the resin substrate (1), magnetic layers formed on the adjacent tracks (3) are not brought into contact and it is possible to prevent the problem that the magnetic layer is embedded in the groove (2). Thus, it is possible to physically separate the track (3) by the groove (2) and fabricate a magnetic recording medium to/from which data can written and read stably.

    摘要翻译: 提供一种适合于离散介质的磁记录介质基板,能够制造可以稳定地写入或读出数据的磁记录介质。 在树脂基板(1)的表面上形成有同轴槽(2)。 槽(2)的宽度(T2)大于轨道(3)的宽度(T1)。 因此,当在树脂基板(1)上层叠磁性层时,形成在相邻的轨道(3)上的磁性层不会接触,并且可以防止磁性层嵌入槽(2)中的问题 )。 因此,可以通过凹槽(2)物理地分离轨道(3)并且制造数据可以被稳定地写入和读出的磁记录介质。

    Securing structure for stator and electric vehicle
    14.
    发明授权
    Securing structure for stator and electric vehicle 有权
    定子和电动车辆的固定结构

    公开(公告)号:US07737599B2

    公开(公告)日:2010-06-15

    申请号:US12087994

    申请日:2007-02-13

    申请人: Hiroyuki Hattori

    发明人: Hiroyuki Hattori

    IPC分类号: H02K1/00

    摘要: A securing structure for a stator includes the stator having a stator core, and a housing having an opening portion containing the stator core, and the housing includes a portion A where the clearance between the inner circumferential surface of the opening portion and the stator core is relatively smaller and the inner diameter of the opening portion is constant, and a portion B located adjacent to the portion A in the axial direction of the stator core where the clearance between the inner circumferential surface of the opening portion and the stator core is relatively larger.

    摘要翻译: 用于定子的固定结构包括具有定子芯的定子和具有包含定子芯的开口部的壳体,壳体包括部分A,其中开口部分的内周面与定子芯之间的间隙为 开口部的内径相对较小,与开口部的内周面和定子芯之间的间隙相对于定子芯的轴向部分A相邻的部分B相对较大 。

    Securing Structure For Stator and Electric Vehicle
    15.
    发明申请
    Securing Structure For Stator and Electric Vehicle 有权
    定子和电动车的固定结构

    公开(公告)号:US20090021104A1

    公开(公告)日:2009-01-22

    申请号:US12087994

    申请日:2007-02-13

    申请人: Hiroyuki Hattori

    发明人: Hiroyuki Hattori

    IPC分类号: H02K1/18

    摘要: A securing structure for a stator includes the stator having a stator core, and a housing having an opening portion containing the stator core, and the housing includes a portion A where the clearance between the inner circumferential surface of the opening portion and the stator core is relatively smaller and the inner diameter of the opening portion is constant, and a portion B located adjacent to the portion A in the axial direction of the stator core where the clearance between the inner circumferential surface of the opening portion and the stator core is relatively larger.

    摘要翻译: 用于定子的固定结构包括具有定子芯的定子和具有包含定子芯的开口部的壳体,壳体包括部分A,其中开口部分的内周面与定子芯之间的间隙为 开口部的内径相对较小,与开口部的内周面和定子芯之间的间隙相对于定子芯的轴向部分A相邻的部分B相对较大 。

    Winding Structure of Rotating Electric Machine
    16.
    发明申请
    Winding Structure of Rotating Electric Machine 有权
    旋转电机绕组结构

    公开(公告)号:US20080012444A1

    公开(公告)日:2008-01-17

    申请号:US11792123

    申请日:2006-04-25

    申请人: Hiroyuki Hattori

    发明人: Hiroyuki Hattori

    IPC分类号: H02K3/28

    CPC分类号: H02K3/28

    摘要: A stator winding has series coils and the series coils are connected in parallel. One of the series coil includes series-connected U phase coils and the other series coil includes series-connected U phase coils. A part of a wire connecting U phase coils of that one series coil is wound around the same teeth as those around which one of the U phase coils of the other series coil is wound, so as to form a U phase coil. A part of a wire connecting U phase coils of the other series coil is wound around the same teeth as those around which one of the phase coils of that one series coil is wound, so as to form a U phase coil.

    摘要翻译: 定子绕组具有串联线圈,串联线圈并联。 一个串联线圈包括串联的U相线圈,另一个串联线圈包括串联的U相线圈。 连接该一个串联线圈的U相线圈的线的一部分缠绕在与其他串联线圈的U相线圈中的一个缠绕的相同的齿上,以形成U相线圈。 连接另一串联线圈的U相线圈的线的一部分缠绕在与该一个串联线圈的一个相线缠绕的周围相同的齿上,以形成U相线圈。

    Optical head for recording and reading information and objective lens for use therein
    18.
    发明授权
    Optical head for recording and reading information and objective lens for use therein 失效
    用于记录和读取信息的光学头和用于其中的物镜

    公开(公告)号:US07236445B2

    公开(公告)日:2007-06-26

    申请号:US10736637

    申请日:2003-12-17

    IPC分类号: G11B7/00

    摘要: An objective lens used in an optical head having a convex lens and a chromatic aberration correction optical element wherein there is provided a positioning means that positions the center of gravity of the objective lens used in an optical head substantially on a straight line connecting supporting points for the objective lens used in an optical head.

    摘要翻译: 在具有凸透镜和色像差校正光学元件的光学头中使用的物镜,其中设置有定位装置,其将用于光学头的物镜的重心基本上定位在连接支撑点的直线上, 在光学头中使用的物镜。