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11. 发明授权

US07708465B2 Hydrodynamic bearing device, spindle motor, and method for manufacturing hydrodynamic bearing device 失效
标题翻译：流体动力轴承装置，主轴电动机和制造流体动力轴承装置的方法
公开(公告)号：US07708465B2
公开(公告)日：2010-05-04
申请号：US11261469
申请日：2005-10-31
申请人： Takeyoshi Yamamoto
发明人： Takeyoshi Yamamoto
IPC分类号： F16C33/10
CPC分类号： F16C33/107 , F16C17/045 , F16C17/10 , F16C33/103 , Y10S384/907
摘要： Highly reliable hydrodynamic bearing device and spindle motor are provided as a result of improving cleanliness by using an iron metal having austenite structure, which is a non-magnetic body, and solving the problem of lowering of abrasion resistance due to low hardness. A shaft is formed using an iron metal having austenite structure, and a surface treated layer dispersed with solid lubricant is formed on at least a part of the surface of a shaft facing a sleeve by spraying fine particles of solid lubricant. Cleanliness is improved since the shaft is formed using an iron metal having austenite structure, which is a non-magnetic body. Further, since the surface treated layer dispersed with solid lubricant is arranged on the bearing surface, the abrasion resistance is enhanced and excellent bearing reliability is obtained.
摘要翻译：通过使用作为非磁性体的具有奥氏体构造的铁金属来提高清洁度，提供了高度可靠的流体动力轴承装置和主轴电动机，并且解决了由于低硬度降低耐磨性的问题。使用具有奥氏体结构的铁金属形成轴，并且通过喷射固体润滑剂的细颗粒在与轴套相对的轴的表面的至少一部分上形成分散有固体润滑剂的表面处理层。由于使用作为非磁性体的具有奥氏体构造的铁金属形成轴，所以清洁度得到改善。此外，由于分散有固体润滑剂的表面处理层被布置在轴承表面上，因此耐磨性得到提高并且获得了优异的轴承可靠性。

12. 发明授权

US07530741B2 Fluid bearing device and spindle motor 失效
标题翻译：流体轴承装置和主轴电机
公开(公告)号：US07530741B2
公开(公告)日：2009-05-12
申请号：US11106572
申请日：2005-04-15
申请人： Takeyoshi Yamamoto
发明人： Takeyoshi Yamamoto
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/026 , F16C17/107 , F16C33/103
摘要： A fluid bearing device capable of responding to miniaturization while preventing an operating fluid such as a lubricating oil from leaking out to the outside. The fluid bearing device includes a shaft and a sleeve arranged on an outer periphery with respect to the shaft with a microscopic gap in between, and has an operating fluid filled in between the shaft and the sleeve. The shaft is formed by a sintered body, a radial dynamic pressure generating groove is formed on an outer peripheral surface of the shaft, and the sleeve is formed by a material not allowing the operating fluid to pass through. The shaft is thus covered by the sleeve formed by a material that does not penetrate the operating fluid such as lubricating oil from the outer periphery side, so that the operating fluid does not leak out to the outside even when the shaft is a porous body made of a sintered body.
摘要翻译：一种流体轴承装置，其能够在防止诸如润滑油的工作流体泄漏到外部的同时响应小型化。所述流体轴承装置包括轴和套筒，所述轴和套筒布置在相对于所述轴的外周上，其间具有微小间隙，并且具有填充在所述轴和所述套筒之间的工作流体。轴由烧结体形成，在轴的外周面上形成径向动压产生槽，套筒由不允许工作流体通过的材料形成。因此，轴被由不会从外周侧渗入润滑油的工作流体的材料形成的套筒覆盖，使得即使当轴是多孔体时，工作流体也不会泄漏到外部的烧结体。

13. 发明授权

US07284908B2 Hydrodynamic bearing device and motor 有权
标题翻译：流体动力轴承装置和电机
公开(公告)号：US07284908B2
公开(公告)日：2007-10-23
申请号：US11217318
申请日：2005-09-02
申请人： Takeyoshi Yamamoto , Yoshihiro Ashizaki
发明人： Takeyoshi Yamamoto , Yoshihiro Ashizaki
IPC分类号： F16C32/06
CPC分类号： C22C38/58 , C22C38/02 , C22C38/60 , C23C18/32 , F16C3/02 , F16C17/107 , F16C33/121 , Y10S384/913
摘要： An object of the present invention to provide a hydrodynamic bearing device and a motor having a high performance and reliability which prevents deterioration in a temperature property due to a difference in coefficients of linear expansion of a sleeve and a shaft and prevents abrasion of bearing surfaces of both the sleeve and the shaft. The sleeve is formed of a copper metal material or an iron metal material and is treated with electroless nickel plating at least on the surface which opposes the shaft. The shaft includes 0.2% by weight C, 0.3% by weight Si, 8% by weight Mn, 0.2% by weight S, 2.5% by weight Ni, and 14% by weight Cr, and a main component of the shaft is a manganese alloy steel including Fe.
摘要翻译：本发明的目的是提供一种具有高性能和可靠性的流体动力轴承装置和电动机，其防止由于套筒和轴的线性膨胀系数的差异导致的温度特性的劣化，并且防止轴承表面的磨损套筒和轴。套筒由铜金属材料或铁金属材料形成，并且至少在与轴相对的表面上用无电镀镍处理。该轴包括0.2重量％的C，0.3重量％的Si，8重量％的Mn，0.2重量％的S，2.5重量％的Ni和14重量％的Cr，并且轴的主要成分是锰合金钢包括Fe。

14. 发明授权

US08366457B2 Wiring structure having a plurality of circuit boards with an insulating sleeve in a terminal insertion hole 有权
标题翻译：接线结构，具有在端子插入孔中具有绝缘套筒的多个电路板
公开(公告)号：US08366457B2
公开(公告)日：2013-02-05
申请号：US13233160
申请日：2011-09-15
申请人： Takeyoshi Yamamoto , Keisuke Takahashi , Yoshikatsu Hasegawa
发明人： Takeyoshi Yamamoto , Keisuke Takahashi , Yoshikatsu Hasegawa
IPC分类号： H01R12/00
CPC分类号： H05K3/4046 , H01R12/58 , H05K3/202 , H05K3/4611 , H05K2201/09581 , H05K2201/0969 , H05K2201/10303 , H05K2201/10833
摘要： A wiring structure includes a board assembly and pin terminals. In each of pin terminal insertion holes formed in the board assembly, a terminal connection portion electrically connected to a metal foil wire and fitted onto the pin terminal so as to hold the pin terminal is provided in a through-hole of at least one of a plurality of circuit boards forming the board assembly, which forms a part of the pin terminal insertion hole, whereas an insulating sleeve blocking contact between the pin terminal and each of the remaining circuit boards is fitted into through-holes of the remaining circuit boards, which form the remaining part of the pin terminal insertion hole.
摘要翻译：布线结构包括板组件和销端子。在形成在板组装体中的每一个销端子插入孔中，与金属箔线电连接并安装在销端子上以便固定销端子的端子连接部分设置在至少一个形成板组件的多个电路板，其形成销端子插入孔的一部分，而将引脚端子和每个剩余电路板之间的绝缘套筒阻塞接触装配到剩余电路板的通孔中，形成销端子插入孔的剩余部分。

15. 发明申请

US20080063332A1 Hydrodynamic bearing device and motor and recording and reproducing apparatus using the same 审中-公开
标题翻译：流体动力轴承装置和电动机以及使用其的记录和再现装置
公开(公告)号：US20080063332A1
公开(公告)日：2008-03-13
申请号：US11882939
申请日：2007-08-07
申请人： Takeyoshi Yamamoto , Yoichi Nishimoto , Akihito Shirai
发明人： Takeyoshi Yamamoto , Yoichi Nishimoto , Akihito Shirai
IPC分类号： F16C33/80 , G01D15/00 , H02K7/10
CPC分类号： H02K7/086 , F16C17/107 , F16C33/745 , F16C2370/12 , H02K5/1675
摘要： To provide a hydrodynamic bearing device which can be made small and thin with a sufficient length of the radial bearing being secured, which can prevent leakage of a lubricant even when there is a significant error in shape and/or a disturbance such as a shock and the like, and also which is not affected by deformation of a hub. A radial hydrodynamic bearing is provided between an outer periphery of the shaft and an inner periphery of a sleeve, and a thrust hydrodynamic bearing is formed between a lower surface of the shaft and an upper surface of the thrust plate. Also, a seal portion is formed by an inner peripheral surface of an upper recessed portion of the sleeve, and an outer peripheral surface of a cover plate.
摘要翻译：为了提供一种流体动力轴承装置，其可以制成小而薄，径向轴承的长度足够长，即使在形状和/或诸如冲击等干扰的情况下也能防止润滑剂的泄漏，并且也不受轮毂变形的影响。径向流体动力轴承设置在轴的外周和套筒的内周之间，并且在轴的下表面和止推板的上表面之间形成有推力流体动力轴承。此外，密封部由套筒的上凹部的内周面和盖板的外周面形成。

16. 发明授权

US07268452B2 Spindle motor 有权
标题翻译：主轴电机
公开(公告)号：US07268452B2
公开(公告)日：2007-09-11
申请号：US11038461
申请日：2005-01-21
申请人： Nobuhiro Yoshino , Takeyoshi Yamamoto
发明人： Nobuhiro Yoshino , Takeyoshi Yamamoto
IPC分类号： H02K11/00
CPC分类号： H02K3/522 , H02K5/225
摘要： A spindle motor is provided in which an end portion of a winding of a coil maintains insulation from a base and the end portion of the winding of the coil can be easily threaded through a hole of a printed circuit board when the end portion of the winding of the coil is drawn out. For this, the spindle motor includes a base fixed with a stator having a coil, an insulating sheet provided between the stator and the base, and a printed circuit board provided in the base on an outer side of the motor. Holes are formed in the base, insulating sheet and printed circuit board so as to communicate with each other, and an winding end portion of the coil is led out to the outside of the motor. The diameter C of the hole 19 in the printed circuit board and the diameter B of the hole 18 of the insulating sheet are smaller than the diameter A of the hole 17 of the base, and the diameter C of the hole 19 is larger than the diameter B of the hole 18.
摘要翻译：提供一种主轴电动机，其中线圈的绕组的端部保持与基座的绝缘，并且线圈的绕组的端部可以容易地穿过印刷电路板的孔，当绕组的端部的线圈被拉出。为此，主轴电动机包括固定有具有线圈的定子的基座，设置在定子和基座之间的绝缘片，以及设置在电机外侧的基座中的印刷电路板。在基底，绝缘片和印刷电路板上形成孔，以便彼此连通，线圈的卷绕端部被引出到电动机的外部。印刷电路板中的孔19的直径C和绝缘片的孔18的直径B小于基座孔17的直径A，并且孔19的直径C大于孔18的直径B。

17. 发明申请

US20060170297A1 Motor using dynamic gas bearings 失效
标题翻译：电机采用动态气体轴承
公开(公告)号：US20060170297A1
公开(公告)日：2006-08-03
申请号：US10543907
申请日：2004-02-24
申请人： Masahiro Jyono , Yasunori Tokuno , Takeyoshi Yamamoto , Taizo Ikegawa , Satoko Miki
发明人： Masahiro Jyono , Yasunori Tokuno , Takeyoshi Yamamoto , Taizo Ikegawa , Satoko Miki
IPC分类号： H02K5/16 , H02K7/00 , H02K11/00 , H02K7/08
CPC分类号： H02K7/085 , F16C17/107 , F16C33/1015 , F16C2370/12
摘要： A dynamic pressure gas bearing motor in which a radial dynamic pressure gas bearing and a thrust dynamic pressure gas bearing are ensured to have sufficient length and diameter even though the clamping screw holes for introducing screws to reliably hold a disk are formed in the top wall of the motor rotation body. The top surface of the support shaft (2) has a downward recession, the motor rotation body (3) has a protruded part (3) facing the recession (2a) of the support shaft and fitted therein with clearance, a radial dynamic pressure gas bearing (6) is formed by the inner periphery of the motor rotation body and the outer periphery of the support shaft, a thrust dynamic pressure gas bearing (7) is formed by the protruded part of the motor rotation body and the recession of the support shaft, the thrust dynamic pressure gas bearing is provided below the top end of the radial dynamic pressure gas bearing, and clam screw holes (3c) for holding a disk are formed in the top wall of the motor rotation body above the recession of the support shaft.
摘要翻译：即使用于引入螺钉以可靠地保持盘的夹紧螺钉孔也形成在径向动压气体轴承和推力动压气体轴承中以具有足够的长度和直径的动压气体轴承马达，电机旋转体。支撑轴（2）的上表面具有向下的凹陷，马达旋转体（3）具有面向支撑轴的凹部（2a）的突出部分（3），并且在其间装有间隙，径向动压气体轴承（6）由电动机旋转体的内周和支撑轴的外周形成，推力动压气体轴承（7）由电动机旋转体的突出部和支撑轴，推力动压气体轴承设置在径向动态气体轴承的顶端下方，用于保持盘的蛤蜊螺孔（3c）形成在电动机旋转体的顶壁上方，支撑轴。

18. 发明申请

US20060158052A1 Spindle motor and rotation apparatus 失效
标题翻译：主轴电机和旋转装置
公开(公告)号：US20060158052A1
公开(公告)日：2006-07-20
申请号：US11322379
申请日：2006-01-03
申请人： Takeyoshi Yamamoto
发明人： Takeyoshi Yamamoto
IPC分类号： H02K5/16
CPC分类号： F16C33/107 , F16C17/107 , F16C33/103 , F16C2370/12 , H02K5/1675
摘要： A spindle motor which allows appropriate formation of communicating hole for compensating a pressure difference due to an error in working of dynamic pressure generating grooves and other components, easy formation of dynamic pressure generating grooves and readily prevention of leakage of a lubrication fluid is provided. An outer cylindrical member is attached to a shaft, a radial hydrodynamic bearing and a thrust hydrodynamic bearing are provided between the outer cylindrical member and the sleeve, and communicating holes are formed between the shaft and the outer cylindrical member, and between the hub and the outer cylindrical member. Since the collared outer cylindrical member is attached to the shaft, the communicating holes can be readily formed. Also, since a thrust hydrodynamic bearing is formed between an opening of a communicating hole and a seal, a lubrication fluid is unlikely to leak from the seal portion. The outer cylindrical member having the collar portion also enables easy formation of a thrust dynamic pressure generating groove, using inexpensive methods such as pressing.
摘要翻译：一种主轴电动机，其允许适当地形成用于补偿由于动压产生槽和其他部件的工作中的误差引起的压力差的连通孔，容易地形成动压产生槽并且容易地防止润滑流体的泄漏。一个外圆筒件附着在轴上，一个径向流体动力轴承和一个推力流体动力轴承设置在外圆柱件和套筒之间，连通孔形成在轴与外圆柱件之间，以及毂与外圆柱形构件。由于套圈外筒构件安装在轴上，所以可以容易地形成连通孔。此外，由于在连通孔的开口和密封件之间形成有推力流体动力轴承，所以润滑流体不太可能从密封部泄漏。具有轴环部分的外圆柱形部件还能够使用诸如压制的廉价方法，能够容易地形成推力动压产生槽。

19. 发明申请

US20060138887A1 Dynamic pressure bearing motor 失效
标题翻译：动压轴承电机
公开(公告)号：US20060138887A1
公开(公告)日：2006-06-29
申请号：US10544782
申请日：2004-02-24
申请人： Takeyoshi Yamamoto , Yasunori Tokuno , Masahiro Jyono , Taizo Ikegawa
发明人： Takeyoshi Yamamoto , Yasunori Tokuno , Masahiro Jyono , Taizo Ikegawa
IPC分类号： H02K7/00 , H02K5/16
CPC分类号： F16C33/107 , F16C17/10 , F16C33/74 , F16C2370/12 , G11B19/2018 , H02K7/085
摘要： A magnet (13) for trapping abraded powder is disposed in a connecting passage between an opening of a sleeve and an opening of a hydrodynamic bearing motor, and a shaft (3), a sleeve (4), a thrust flange (7), and a thrust main plate (5) are made of an austenitic stainless. With this configuration, since the austenitic stainless acting as a nonmagnetic substance is used, it is possible to increase a degree of cleaning. Further, abraded powder of the austenitic stainless is transformed into a magnetic substance, and thus a flow of the abraded powder to the outside can be prevented by providing the magnet for trapping abraded powder in the connecting passage between an opening of a bearing and the outside of the motor.
摘要翻译：用于捕集磨损的粉末的磁体（13）设置在套筒的开口和流体动力轴承电动机的开口之间的连接通道中，以及轴（3），套筒（4），推力凸缘（7），推力主板（5）由奥氏体不锈钢制成。利用这种结构，由于使用了作为非磁性物质的奥氏体不锈钢，所以可以提高清洁度。此外，将奥氏体不锈钢的磨损粉末转变成磁性物质，因此可以通过在轴承的开口和外部的连接通道中设置用于将磨损的粉末捕获的磁体，从而防止磨损的粉末向外部的流动的电机。

20. 发明申请

US20060104554A1 Hydrodynamic bearing device, spindle motor, and method for manufacturing hydrodynamic bearing device 失效
标题翻译：流体动力轴承装置，主轴电动机和制造流体动力轴承装置的方法
公开(公告)号：US20060104554A1
公开(公告)日：2006-05-18
申请号：US11261469
申请日：2005-10-31
申请人： Takeyoshi Yamamoto
发明人： Takeyoshi Yamamoto
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/045 , F16C17/10 , F16C33/103 , Y10S384/907
摘要： Highly reliable hydrodynamic bearing device and spindle motor are provided as a result of improving cleanliness by using an iron metal having austenite structure, which is a non-magnetic body, and solving the problem of lowering of abrasion resistance due to low hardness. A shaft is formed using an iron metal having austenite structure, and a surface treated layer dispersed with solid lubricant is formed on at least a part of the surface of a shaft facing a sleeve by spraying fine particles of solid lubricant. Cleanliness is improved since the shaft is formed using an iron metal having austenite structure, which is a non-magnetic body. Further, since the surface treated layer dispersed with solid lubricant is arranged on the bearing surface, the abrasion resistance is enhanced and excellent bearing reliability is obtained.
摘要翻译：通过使用作为非磁性体的具有奥氏体构造的铁金属来提高清洁度，提供了高度可靠的流体动力轴承装置和主轴电动机，并且解决了由于低硬度降低耐磨性的问题。使用具有奥氏体结构的铁金属形成轴，并且通过喷射固体润滑剂的细颗粒在与轴套相对的轴的表面的至少一部分上形成分散有固体润滑剂的表面处理层。由于使用作为非磁性体的具有奥氏体构造的铁金属形成轴，所以清洁度得到改善。此外，由于分散有固体润滑剂的表面处理层被布置在轴承表面上，因此耐磨性得到提高并且获得了优异的轴承可靠性。

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