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    • 1. 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。
    • 2. 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。
    • 3. 发明授权
    • Motor and electronic apparatus using the same
    • 电机和电子设备使用相同
    • US08159102B2
    • 2012-04-17
    • US12813166
    • 2010-06-10
    • Yuichi YoshikawaHiroaki KawasakiKenji SugiuraHiroshi UedaHiroki Asai
    • Yuichi YoshikawaHiroaki KawasakiKenji SugiuraHiroshi UedaHiroki Asai
    • H02K7/00
    • H02K11/225H02K1/146
    • A rotor 14 is rotatably disposed around a stator 13 that is provided with a plurality of magnetic poles 13a. The inner circumferential face of a rotor frame 14b 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 a 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 a substrate 11 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. When a distance between an end of the rotor frame on the substrate side and the substrate is taken as A, a distance between an end of the first extended portion on the substrate side and the substrate is taken as B, and a distance between the end of the first extended portion on the substrate side and the magnet is taken as G, B≦A≦B+G is satisfied. 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.
    • 转子14围绕设置有多个磁极13a的定子13可旋转地设置。 转子的转子架14b的内周面设置有磁体15,该磁体被磁化成与定子相反的方向具有相反的极性,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11侧的第一延伸部13c和从磁极基部延伸到相反侧的第二延伸部13b 基板侧。 与转子相对的基板的表面设置有FG图案19.当基板侧的转子框架的端部与基板之间的距离取为A时,第一延伸部分的端部之间的距离 将基板侧和基板取为B,将基板侧的第一延伸部的端部与磁铁的距离设为G,B≦̸满足A< NlE; B + G。 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。
    • 4. 发明授权
    • Motor and electronic apparatus using the same
    • 电机和电子设备使用相同
    • US08159097B2
    • 2012-04-17
    • US12813258
    • 2010-06-10
    • Yuichi YoshikawaHiroaki KawasakiKenji SugiuraHiroshi UedaHiroki Asai
    • Yuichi YoshikawaHiroaki KawasakiKenji SugiuraHiroshi UedaHiroki Asai
    • H02K7/00
    • H02K29/03H02K1/146H02K1/2786
    • A rotor 14 is rotatably disposed around a stator 13 that is provided with a plurality of magnetic poles 13a. The inner circumferential face of the rotor is provided with a magnet 15 on whose face opposing the stator main magnetization is performed, and on whose face opposing the substrate FG magnetization is performed. The outer circumferential ends of the magnetic poles of the stator are provided with extended portions 13b and 13c that vertically extend from the magnetic pole base 13d. A face of the substrate opposing the rotor is provided with a FG pattern 19 opposing the magnet 15. The FG pattern is disposed on an outer side in a radial direction of the outer circumferential face of the stator. When an angle formed by a straight line connecting a central position in the radial direction of the magnet and a central position in the radial direction of the FG pattern with respect to a central axis of a driving shaft is taken as θ, and an angle formed by a direction of the FG magnetization with respect to the central axis of the driving shaft is taken as A, 0 degree
    • 转子14围绕设置有多个磁极13a的定子13可旋转地设置。 转子的内周面设置有磁铁15,在磁体15的与定子主磁化相反的方向上进行磁体15,并且在其表面与基板FG的磁化相反的方向被执行。 定子的磁极的外周端设置有从磁极基座13d垂直延伸的延伸部分13b和13c。 与转子相对的基板的表面设置有与磁体15相对的FG图案19.GV图案设置在定子的外周面的径向外侧。 当将连接磁体径向中心位置的直线和FG图案径向方向上的中心位置相对于驱动轴的中心轴线形成的角度取为角度时, 由相对于驱动轴的中心轴线的FG磁化方向形成的A为0度
    • 10. 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。