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    • 1. 发明授权
    • Rotating machine provided with stator core
    • 带定子铁心的旋转机
    • US08754563B2
    • 2014-06-17
    • US13160359
    • 2011-06-14
    • Kazuyoshi NagaiAkira Suzuki
    • Kazuyoshi NagaiAkira Suzuki
    • H02K1/14H02K15/02
    • H02K1/146G11B19/2009H02K1/30H02K3/522H02K5/225H02K29/03H02K2203/03H02K2203/06
    • A recording disk is to be mounted on a hub. A base rotatably supports the hub through a bearing. A stator core is fixed to the base and includes an annular portion and a salient pole extending radially therefrom. A magnet faces the salient pole radially and is rotated with the hub. The magnet has a plurality of magnetic poles in the circumferential direction such that each of the plurality of magnetic poles faces the salient pole. The salient pole includes a rod-shaped body around which a wire is wound and a tooth portion that is provided radially outside the rod-shaped body and extends circumferentially. The circumferential end located at the end in the circumferential direction of the tooth portion is located radially inside a circumscribed circle passing through the tip located at the radially outermost end of the tooth portion.
    • 记录盘要安装在轮毂上。 基座通过轴承可旋转地支撑毂。 定子铁心固定在基座上,并包括环形部分和从其径向延伸的凸极。 磁体径向面向凸极,并与轮毂一起旋转。 磁体在圆周方向上具有多个磁极,使得多个磁极中的每一个面对凸极。 凸极包括绕线的棒状体,以及设置在杆状体的径向外侧并沿周向延伸的齿部。 位于齿部圆周方向端部的圆周端位于通过位于齿部的径向最外端的尖端的外接圆的径向内侧。
    • 2. 发明申请
    • ROTATING DEVICE HAVING A ROTOR AND A STATOR
    • 具有转子和定子的旋转装置
    • US20120212092A1
    • 2012-08-23
    • US13372213
    • 2012-02-13
    • Hiromitsu GOTOKazuyoshi NAGAI
    • Hiromitsu GOTOKazuyoshi NAGAI
    • H02K7/08
    • H02K7/085F16C17/107F16C2370/12G11B19/2036
    • The rotating device comprises the rotor to which the magnetic recording disk is to be mounted and a stator rotatably supporting the rotor. The stator includes: a bearing unit rotatably supporting the rotor by generating dynamic pressure in lubricant that intervenes between the rotor and the stator; and a base on which a central hole is formed, the center of the central hole being along the rotational axis of the rotor and the bearing unit being fixed to the central hole. The bearing unit includes the housing and the sleeve. The housing includes: a first outer surface joining the central hole; and a second outer surface formed more radially outward from the rotational axis than the first outer surface, the second outer surface partly overlapping the first outer surface in the axial direction.
    • 旋转装置包括要安装磁记录盘的转子和可转动地支撑转子的定子。 定子包括:轴承单元,其通过在介于转子和定子之间的润滑剂中产生动压来可旋转地支撑转子; 以及形成有中心孔的基座,中心孔的中心沿着转子的旋转轴线,轴承单元固定在中心孔上。 轴承单元包括壳体和套筒。 壳体包括:连接中心孔的第一外表面; 以及从旋转轴线比第一外表面更径向向外地形成的第二外表面,第二外表面在轴向方向上部分地与第一外表面重叠。
    • 3. 发明申请
    • DISK DRIVE DEVICE HAVING A LAMINATED CORE
    • 具有层压芯的磁盘驱动器件
    • US20110096437A1
    • 2011-04-28
    • US12871508
    • 2010-08-30
    • Kazuyoshi NAGAIHiroshi IWAI
    • Kazuyoshi NAGAIHiroshi IWAI
    • G11B5/82
    • G11B33/08G11B19/2018G11B25/043H02K1/187
    • In A disk drive device, a magnetic recording disk is to be mounted on a hub. A base plate rotatably supports the hub through a bearing unit. A projecting portion is formed on the upper surface of the base plate. The projecting portion has a cylindrical side surface, the center of which being along the rotational axis of the motor. A laminated core is formed by laminating eight magnetic steel sheets and has a ring portion and a plurality of teeth that extend radially from the ring portion. The disk drive device has a tubular vibration-deadening ring. The outer surface of the vibration-deadening ring is press-fitted into the ring portion, and the inner surface is fixed to the side surface of the projecting portion. The outer surface of the vibration-deadening ring is pressed against the ring portion at least at a position closer, in the direction along the rotational axis of the motor, to the upper surface of the laminated core than to the lower surface of the laminated core.
    • 在磁盘驱动装置中,将磁记录盘安装在轮毂上。 基板通过轴承单元可旋转地支撑毂。 突出部形成在基板的上表面上。 突出部分具有圆柱形侧表面,其中心沿着电机的旋转轴线。 通过层叠八个电磁钢板形成层叠铁芯,并且具有从环部径向延伸的环部分和多个齿。 磁盘驱动装置具有管状振动消音环。 减震环的外表面被压配合到环形部分中,并且内表面固定到突出部分的侧表面。 减震环的外表面至少在沿着电动机的旋转轴线的方向上靠近层叠铁芯的上表面的位置处压靠在环形部分上,而不是层叠铁心的下表面 。
    • 4. 发明申请
    • Wireless communication system
    • 无线通信系统
    • US20050148347A1
    • 2005-07-07
    • US11075279
    • 2005-03-07
    • Kazuyoshi Nagai
    • Kazuyoshi Nagai
    • G08G1/0962G08G1/0967H04W8/20H04Q7/20
    • G08G1/096716G08G1/0962G08G1/096758G08G1/096775H04W8/20
    • A Dario communication system including base stations that distribute predetermined data by radio so as to be received by mobile terminals located within the communication area of a base station. This system comprises a management unit managing communication area information on the communication area of each of the base stations, a communication area information providing server to which the communication area information is sent from each of the base stations a mobile terminal that has, a radio communication unit for receiving communication area information sent from each of the base stations depending on the position of the mobile terminal and boots up an application program to be used in the communication area which the mobile terminal approaches according to this received communication area information.
    • 一种Dario通信系统,包括通过无线电分配预定数据以便由位于基站的通信区域内的移动终端接收的基站。 该系统包括:管理单元,管理各个基站的通信区域的通信区域信息;通信区域信息提供服务器,从每个基站发送通信区域信息;移动终端,具有无线通信 单元,用于根据移动终端的位置接收从每个基站发送的通信区域信息,并启动要在移动终端根据该接收到的通信区域信息接近的通信区域中使用的应用程序。
    • 5. 发明授权
    • Motor having suction ring
    • 电机有吸环
    • US07656064B2
    • 2010-02-02
    • US12211562
    • 2008-09-16
    • Kazuyoshi Nagai
    • Kazuyoshi Nagai
    • H02K11/00
    • H02K7/09H02K7/085
    • A suction ring is fixed to a motor base and is provided with an outer circumferential section having a first outer diameter that is smaller than an inner diameter of a wall section of the motor base. A plurality of protruded sections each have a second outer diameter larger than the inner diameter of the wall section of the motor base and protrudes outward in a radial direction from the outer circumferential section of the suction ring. The plurality of protruded sections of the suction ring are press fitted into a wall section of the motor base and secures the suction ring to the motor base. One surface of the suction ring coincides with a bottom surface of the ring magnet covering a whole range of a projected area of the ring magnet that is projected onto the surface of the suction ring.
    • 吸入环固定在电动机基座上,并且设有外周部,该外周部的第一外径小于电动机底座的壁部的内径。 多个突出部各自具有大于电动机基座的壁部的内径的第二外径,并且从吸入环的外周部向径向外侧突出。 吸入环的多个突出部被压配合到电动机基座的壁部,并将吸入环固定到电动机基座。 吸入环的一个表面与环形磁铁的底面重合,覆盖突出到吸入环表面上的环形磁铁的投影面积的整个范围。
    • 6. 发明授权
    • Transmission power control apparatus
    • 发射功率控制装置
    • US5809420A
    • 1998-09-15
    • US731141
    • 1996-10-10
    • Kazuhiro IchiyanagiKazuyoshi Nagai
    • Kazuhiro IchiyanagiKazuyoshi Nagai
    • H04J3/00H03G3/30H04B7/15H04B1/04
    • H03G3/3047
    • A transmission power control apparatus in a communication apparatus which synthesizes IF signals output from a plurality of channel units and emits the synthesized signal from an antenna. In the transmission power control apparatus, when none of channel units transmit an IF signal, a controller changes the connection of a power amplifier from the antenna over to a dummy antenna and supplies the output of the power amplifier to the dummy antenna, and instructs a predetermined number m of channel units to output IF signals, a reference voltage generator generates a reference voltage corresponding to a transmission wave number m, and a variable attenuator or a variable amplifier controls gain so that the difference between detected voltage corresponding to a transmission power and the reference voltage becomes zero.
    • 一种通信装置中的发送功率控制装置,其合成从多个信道单元输出的IF信号,并从天线发出合成信号。 在发送功率控制装置中,当没有信道单元发送IF信号时,控制器将功率放大器从天线的连接改变为虚拟天线,并将功率放大器的输出提供给虚拟天线,并且指示 预定数量的通道单元输出IF信号,参考电压发生器产生对应于发送波数m的参考电压,可变衰减器或可变放大器控制增益,使得与发送功率相对应的检测电压之间的差和 参考电压变为零。
    • 7. 发明授权
    • Disk drive device having a vibration-reducing element
    • 具有减振元件的磁盘驱动装置
    • US08451557B2
    • 2013-05-28
    • US12871508
    • 2010-08-30
    • Kazuyoshi NagaiHiroshi Iwai
    • Kazuyoshi NagaiHiroshi Iwai
    • G11B5/82
    • G11B33/08G11B19/2018G11B25/043H02K1/187
    • In a disk drive device, a magnetic recording disk is to be mounted on a hub. A base plate rotatably supports the hub through a bearing unit. A projecting portion is formed on the upper surface of the base plate having a cylindrical side surface centered along the rotational axis of the motor. A laminated core is formed by laminating magnetic steel sheets and has a ring portion and a plurality of teeth radially extending from the ring portion. The disk drive device has a tubular vibration-deadening ring. The outer surface of the vibration-deadening ring is press-fitted into the ring portion at least at a position, along the motor's rotational axis, closer to the upper surface than to the lower surface of the laminated core; and the inner surface of the vibration-deadening ring is fixed to the side surface of the projecting portion.
    • 在磁盘驱动装置中,将磁记录盘安装在轮毂上。 基板通过轴承单元可旋转地支撑毂。 突起部分形成在基板的上表面上,其具有沿电动机的旋转轴线居中的圆柱形侧表面。 通过层压电磁钢板形成层叠铁芯,并且具有环形部分和从环形部分径向延伸的多个齿。 磁盘驱动装置具有管状振动消音环。 减震环的外表面至少在电动机的旋转轴线处至少位于比上述层叠铁芯的下表面更靠近上表面的环形部分中; 并且防振环的内表面固定到突出部分的侧表面。
    • 8. 发明授权
    • Motor having suction ring
    • 电机有吸环
    • US07439643B2
    • 2008-10-21
    • US11425195
    • 2006-06-20
    • Kazuyoshi Nagai
    • Kazuyoshi Nagai
    • H02K21/12
    • H02K7/09H02K7/085
    • A suction ring is fixed to a motor base and is provided with an outer circumferential section having a first outer diameter that is smaller than an inner diameter of a wall section of the motor base. A plurality of protruded sections each have a second outer diameter larger than the inner diameter of the wall section of the motor base and protrudes outward in a radial direction from the outer circumferential section of the suction ring. The plurality of protruded sections of the suction ring are press fitted into a wall section of the motor base and secures the suction ring to the motor base. One surface of the suction ring coincides with a bottom surface of the ring magnet covering a whole range of a projected area of the ring magnet that is projected onto the surface of the suction ring.
    • 吸入环固定在电动机基座上,并且设有外周部,该外周部的第一外径小于电动机底座的壁部的内径。 多个突出部各自具有大于电动机基座的壁部的内径的第二外径,并且从吸入环的外周部向径向外侧突出。 吸入环的多个突出部被压配合到电动机基座的壁部,并将吸入环固定到电动机基座。 吸入环的一个表面与环形磁铁的底面重合,覆盖突出到吸入环表面上的环形磁铁的投影面积的整个范围。
    • 9. 发明申请
    • Motor Having Suction Ring
    • 电动机有吸力环
    • US20070001531A1
    • 2007-01-04
    • US11425195
    • 2006-06-20
    • Kazuyoshi Nagai
    • Kazuyoshi Nagai
    • H02K5/24H02K7/00H02K5/16
    • H02K7/09H02K7/085
    • A motor (50) is composed of a rotor (R) having a hub (2) and a ring magnet (8) that is fixed to the hub (2) and a stator (S) having a motor base (5) and a suction ring (11) in an annular shape that is made from a magnetic material and fixed to the motor base (5). The rotor (R) is sustained rotatable freely with respect to the stator (S) through a bearing (SB1, RB11, RB12), which is composed of a sleeve (10) and a shaft (13) that is inserted into the sleeve (10). The suction ring (11) is provided with a plurality of protruded sections (11a) that protrude in a radial direction on an outer circumferential section or an inner circumferential section of the suction ring (11). The protruded sections (11a) of the suction ring (11) are press fitted into a wall section (5e) that is provided on the motor base (5) and resulting in fixing the suction ring (11) to the motor base (5). One surface of the suction ring (11) is disposed so as to coincide with a bottom surface (8a) of the ring magnet (8) with covering a whole range of a projected area (T) of the ring magnet (8) that is projected on the surface of the suction ring (11).
    • 电动机(50)由具有轮毂(2)的转子(R)和固定到轮毂(2)的环形磁铁(8)和具有电动机基座(5)的定子(S)构成, 吸入环(11),其由磁性材料制成并固定在电动机基座(5)上的环状。 转子(R)通过由套筒(10)和轴(13)组成的轴承(SB 1,RB 11,RB 12)相对于定子(S)自由地旋转,该轴承(13)被插入 套筒(10)。 吸入环(11)具有在吸入环(11)的外周部或内周部沿径向突出的多个突出部(11a)。 吸入环(11)的突出部分(11a)被压配合到设置在马达基座(5)上的壁部分(5e)中,并将吸入环(11)固定到马达基座 5)。 吸入环(11)的一个表面设置成与环形磁体(8)的底面(8a)重合,覆盖环形磁体(8)的投影面积(T)的整个范围, 被投影在吸入环(11)的表面上。