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    • 3. 发明授权
    • Motor and electronic apparatus using the same
    • 电机和电子设备使用相同
    • US08159106B2
    • 2012-04-17
    • US12813201
    • 2010-06-10
    • Yuichi YoshikawaHiroaki KawasakiKenji SugiuraHiroshi UedaHiroki Asai
    • Yuichi YoshikawaHiroaki KawasakiKenji SugiuraHiroshi UedaHiroki Asai
    • H02K1/00
    • H02K29/03H02K1/146H02K1/2786
    • A stator 13 on whose outer circumference a plurality of magnetic poles 13a are arranged is mounted on a substrate 11, and a rotor 14 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided with a magnet 15 magnetized to have alternately opposite polarities in a direction opposing the stator, and magnetized to have alternately opposite polarities in a direction opposing the substrate. The outer circumferential ends of the magnetic poles of the stator are provided with a first extended portion 13c that extends from a magnetic pole base 13d to the substrate side, and a second extended portion 13b that extends from the magnetic pole base to a side opposite the substrate side. A face of the substrate opposing the rotor is provided with a FG pattern 19 outside the outer circumferential face of the stator such that the FG pattern opposes the magnet. Accordingly, it is possible to improve the precision in detecting the rotational speed by reducing noise superimposed on the FG signal, while securing a high driving efficiency.
    • 在其外周配置有多个磁极13a的定子13安装在基板11上,并且转子14围绕定子可旋转地设置。 转子的内周面设置有磁体15,磁体15在与定子相对的方向上具有相反的极性,并且在与基板相对的方向上被磁化成具有相反的极性。 定子的磁极的外周端设置有从磁极基部13d延伸到基板侧的第一延伸部13c和从磁极基部延伸到与磁极基部相反的一侧的第二延伸部13b 衬底侧。 与转子相对的基板的表面在定子的外周面的外侧设置有FG图案19,使得FG图案与磁体相对。 因此,在确保高驱动效率的同时,通过降低叠加在FG信号上的噪音来提高检测转速的精度。
    • 5. 发明申请
    • MOTOR AND ELECTRONIC APPARATUS USING THE SAME
    • 使用它的电动机和电子设备
    • US20100327691A1
    • 2010-12-30
    • US12813201
    • 2010-06-10
    • Yuichi YoshikawaHiroaki KawasakiKenji SugiuraHiroshi UedaHiroki Asai
    • Yuichi YoshikawaHiroaki KawasakiKenji SugiuraHiroshi UedaHiroki Asai
    • H02K1/27
    • H02K29/03H02K1/146H02K1/2786
    • A stator 13 on whose outer circumference a plurality of magnetic poles 13a are arranged is mounted on a substrate 11, and a rotor 14 is rotatably disposed around the stator. The inner circumferential face of the rotor is provided with a magnet 15 magnetized to have alternately opposite polarities in a direction opposing the stator, and magnetized to have alternately opposite polarities in a direction opposing the substrate. The outer circumferential ends of the magnetic poles of the stator are provided with a first extended portion 13c that extends from a magnetic pole base 13d to the substrate side, and a second extended portion 13b that extends from the magnetic pole base to a side opposite the substrate side. A face of the substrate opposing the rotor is provided with a FG pattern 19 outside the outer circumferential face of the stator such that the FG pattern opposes the magnet. Accordingly, it is possible to improve the precision in detecting the rotational speed by reducing noise superimposed on the FG signal, while securing a high driving efficiency.
    • 在其外周配置有多个磁极13a的定子13安装在基板11上,并且转子14围绕定子可旋转地设置。 转子的内周面设置有磁体15,磁体15在与定子相对的方向上具有相反的极性,并且在与基板相对的方向上被磁化成具有相反的极性。 定子的磁极的外周端设置有从磁极基部13d延伸到基板侧的第一延伸部13c和从磁极基部延伸到与磁极基部相反的一侧的第二延伸部13b 衬底侧。 与转子相对的基板的表面在定子的外周面的外侧设置有FG图案19,使得FG图案与磁体相对。 因此,在确保高驱动效率的同时,通过降低叠加在FG信号上的噪音来提高检测转速的精度。
    • 9. 发明授权
    • Ink ejecting device having alternating ejecting channels and
non-ejecting channels
    • 喷墨装置具有交替的喷射通道和不喷射通道
    • US5646661A
    • 1997-07-08
    • US323721
    • 1994-10-18
    • Hiroki AsaiQiming ZhangHiroto Sugahara
    • Hiroki AsaiQiming ZhangHiroto Sugahara
    • B41J2/14B41J2/16B41J2/045
    • B41J2/1623B41J2/14209B41J2/1609B41J2/1618B41J2/1632B41J2/1646
    • An ink ejecting device includes ink channels intercommunicating with slits and air channels intercommunicating with another slits. The ink channels and the air channels have a narrow shape with a rectangular cross-section, and all of the ink channels are filled with ink and the air channels are filled with air. An LSI chip applies a voltage V to a pattern conducting to metal electrodes positioned in air channels located at both sides of an ink channel from which the ink is to be ejected and connects the other patterns connected to metal electrodes in other air channels not adjacent the ejecting ink channel and a pattern conducting to the metal electrodes of the non-ejecting ink channels to a ground line. Therefore, the ink ejecting device of the above structure requires no insulation between ink and electrodes as the working electrodes do not contact the ink.
    • 喷墨装置包括与狭缝相互连通的墨水通道和与另一狭缝相互连通的空气通道。 油墨通道和空气通道具有矩形横截面的窄形状,并且所有油墨通道都填充有油墨,空气通道充满空气。 LSI芯片将电压V施加到位于位于要从其喷射墨水的墨水通道两侧的空气通道中的金属电极的图案,并将与金属电极连接的其它图案连接到不邻近的其它空气通道 喷射油墨通道和向非喷射油墨通道的金属电极传导到地线的图案。 因此,由于工作电极不接触墨水,所以上述结构的墨水喷射装置不需要油墨和电极之间的绝缘。
    • 10. 发明授权
    • Method of manufacturing bonded-magnet rotor
    • 粘结磁铁转子的制造方法
    • US09225212B2
    • 2015-12-29
    • US14001631
    • 2012-03-23
    • Hiroki Asai
    • Hiroki Asai
    • H02K15/02H02K15/10H02K1/28H02K15/03H01F7/02H01F41/02H02K15/00
    • H02K1/28H01F7/021H01F41/0266H02K15/0012H02K15/03Y10T29/49012
    • A method of manufacturing a bonded-magnet rotor according to the invention includes forming step and arranging step. The forming step is by forming a bonded-magnet formed body. The arranging step includes: integrating an inside-diameter holding jig, a rotor core, and a rotor-core presser jig; arranging the bonded-magnet formed bodies on the outside periphery of the inside-diameter holding jig; and arranging an outside-diameter-holding magnet-pressure-welding jig to support outside peripheral faces of the bonded-magnet formed bodies. The method further includes steps of: deforming the bonded-magnet formed bodies to fit with the outside peripheral dimension of the rotor core by pressing and transferring the bonded-magnet formed bodies to the rotor core with a forming jig; mutually joining end portions of adjacent ones of the bonded-magnet formed bodies; and integrating the bonded-magnet formed bodies with the rotor core by compressing the bonded-magnet formed bodies. This configuration allows the bonded-magnet rotor with high dimension accuracy.
    • 根据本发明的粘结磁体转子的制造方法包括形成步骤和布置步骤。 成形步骤是通过形成粘结磁体成形体。 所述布置步骤包括:整合内径保持夹具,转子芯和转子芯压头夹具; 将粘结磁体成形体设置在内径保持夹具的外周上; 并且配置外径保持用磁体压焊夹具以支撑粘结磁体成形体的外周面。 该方法还包括以下步骤:通过用成形夹具将粘结磁体成形体压制并转移到转子芯上,使粘结磁体成形体变形以与转子芯的外周尺寸配合; 相邻的粘结磁体成形体的端部相互接合; 并且通过压缩粘结磁体成形体将粘结磁体成形体与转子芯体一体化。 这种结构允许粘结磁体转子具有高尺寸精度。