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31. 发明授权

US5541462A Rotary body bearing apparatus, motor and polygon mirror motor 失效
标题翻译：旋转轴承装置，电机和多面镜电机
公开(公告)号：US5541462A
公开(公告)日：1996-07-30
申请号：US233757
申请日：1994-04-26
申请人： Katsutoshi Nii , Ichiro Hashimoto , Takeshi Nakajima , Sueo Akashi
发明人： Katsutoshi Nii , Ichiro Hashimoto , Takeshi Nakajima , Sueo Akashi
IPC分类号： F16C17/02 , F16C33/10 , F16C33/74 , F16J15/43 , H02K5/16 , H02K7/08 , F16C32/06 , H02K7/09
CPC分类号： F16C33/1035 , F16C17/10 , F16C33/746 , H02K5/1675
摘要： A rotary body bearing apparatus has a bearing supporting member, a radial bearing member, a bearing chamber formed in the bearing supporting member for holding the radial bearing member, a rotative shaft supported rotatively by the radial bearing member, and lubricating oil filling a bearing clearance between the rotative shaft and the radial bearing member. An air bubble restraint means restrains the occurrence of air bubbles generated in the lubricating oil by the rotation of the rotative shaft. Even when the rotative shaft rotates at the high speed of rotation, by the provision of the air bubble occurrence restraint means, the occurrence of air bubbles generated in the lubricating oil can be restrained, high accuracy rotation can be maintained and a rotation number fluctuation of the rotary body can be reduced.
摘要翻译：旋转体轴承装置具有轴承支撑构件，径向轴承构件，形成在用于保持径向轴承构件的轴承支撑构件中的轴承室，由径向轴承构件旋转地支撑的旋转轴和填充轴承间隙的润滑油在旋转轴和径向轴承构件之间。气泡限制装置通过旋转轴的旋转来限制在润滑油中产生的气泡的发生。即使当旋转轴以高速旋转时，通过设置气泡发生抑制装置，可以抑制在润滑油中产生的气泡的发生，可以保持高精度的旋转和旋转数的波动可以减小旋转体。

32. 发明授权

US5469008A Motor with a bearing lubricated by magnetic fluid 失效
标题翻译：带有磁性液体润滑的轴承的电机
公开(公告)号：US5469008A
公开(公告)日：1995-11-21
申请号：US165451
申请日：1993-12-13
申请人： Takeshi Nakajima , Ichiro Hashimoto , Tomoyuki Saitou , Fusanori Ohira , Sueo Akashi , Nobukatu Sone , Katsutoshi Nii
发明人： Takeshi Nakajima , Ichiro Hashimoto , Tomoyuki Saitou , Fusanori Ohira , Sueo Akashi , Nobukatu Sone , Katsutoshi Nii
IPC分类号： H02K5/10 , F16C33/10 , F16C39/06 , G02B26/12 , G06K7/10 , G11B7/135 , H02K5/124 , H02K5/167 , H02K7/09 , H02K7/14
CPC分类号： H02K7/09 , F16C33/1035 , F16C39/063 , G02B26/121 , G06K7/10851 , G11B7/1362 , H02K5/124 , G06K2207/1016
摘要： A motor has a stator with a base part and a hollow projection as well as a rotor with a shaft which extends into the hollow projection. A radial bearing is mounted between the shaft and the hollow projection. There may be a further radial bearing in the base part of the stator. The radial bearing, lubricated by magnetic fluid, is sealed between the shaft and the projection by a magnetic seal at the end of the hollow projection remote from the base part. The rotor has an annular part extending around the hollow projection, which supports permanent magnets forming an armature. Those permanent magnets interact with drive coils on the stator to cause rotation of the rotor about the axis of the shaft. There is also a magnetic thrust bearing between the annular part of the rotor and the projection of the stator. This magnetic thrust bearing is axially displaced relative to the magnetic seal towards the base part of the stator, to counteract the effect of the magnetic thrust bearing on the magnetic seal.
摘要翻译：电动机具有带有基部和中空突起的定子以及具有延伸到中空突起中的轴的转子。径向轴承安装在轴和中空突起之间。在定子的基部可以有另外的径向轴承。由磁性流体润滑的径向轴承通过远离基部的中空突起的端部处的磁性密封件密封在轴和突起之间。转子具有围绕中空突起延伸的环形部分，其支撑形成电枢的永磁体。这些永磁体与定子上的驱动线圈相互作用，以使转子围绕轴的轴线旋转。在转子的环形部分和定子的突起之间还有一个磁力推力轴承。该磁性推力轴承相对于朝向定子的基部的磁性密封件轴向移位，以抵消磁性推力轴承对磁性密封件的影响。

33. 发明授权

US4433432A X-Ray tube apparatus 失效
标题翻译： X射线管装置
公开(公告)号：US4433432A
公开(公告)日：1984-02-21
申请号：US318016
申请日：1981-11-04
申请人： Katsutoshi Nii , Kinpei Okano , Motomichi Doi , Minoru Kitsuya
发明人： Katsutoshi Nii , Kinpei Okano , Motomichi Doi , Minoru Kitsuya
IPC分类号： H01J35/10 , H01J35/16 , H02K5/24 , H05G1/04
CPC分类号： H01J35/101 , H01J35/16
摘要： A rotary anode X-ray tube accommodated in a housing together with oil has a journal box fixed and inwardly extending inside the tube, an anode target fixed to a rotor supported by the journal box and a cathode member opposing the anode target and fixed at an end portion inside the tube opposing the journal box. The fixing portion between the rotary anode X-ray tube and the journal box is supported by a resilient support member on the housing and vibration damping means is disposed on the support member. The vibration damping means includes a moving member fixed at its center and a fixed member fixed to the housing so as to encompass the moving member with a predetermined gap, and oil is fully charged in the gap. Vibration of the rotation system is transmitted to the moving member and the operation of this member damps the vibration by means of the squeeze action of the oil.
摘要翻译：与油一起容纳在壳体中的旋转阳极X射线管具有固定并在管内向内延伸的轴颈箱，固定到由轴颈箱支撑的转子的阳极靶和与阳极靶相对的阴极构件，管内与管颈箱相对的端部。旋转阳极X射线管和轴颈箱之间的固定部分由壳体上的弹性支撑构件支撑，减振装置设置在支撑构件上。振动阻尼装置包括固定在其中心的移动部件和固定在壳体上的固定部件，以便以预定的间隙包围移动部件，并且在该间隙内充满油。旋转系统的振动被传递到移动构件，并且该构件的操作通过油的挤压动作来减震。

34. 发明申请

US20070144833A1 Dynamic bearing unit 失效
标题翻译：动态轴承单元
公开(公告)号：US20070144833A1
公开(公告)日：2007-06-28
申请号：US11644006
申请日：2006-12-22
申请人： Katsutoshi Nii , Hideo Shikata
发明人： Katsutoshi Nii , Hideo Shikata
IPC分类号： F01M1/06
CPC分类号： F16C33/107 , F16C17/045 , F16C17/107
摘要： A fluid dynamic pressure effect can be sufficient without receiving a large effect of viscous friction of lubricating oil with changes in the environmental temperature in which it is used, and smooth starting of the rotating shaft can be ensured by regulating the gap between the rotating shaft and bearing within a suitable range. An outer diameter of the bearing, D, a length in an axial direction of the bearing, L, a gap at a radial side which is between the rotating shaft and the bearing, C, and an inclining height of the bearing end surface to which the flange is faced, δ, satisfy the expression L/D
摘要翻译：流体动力学效应可以充分发挥润滑油在使用环境温度变化的作用下的粘性摩擦力的大的影响，通过调整旋转轴与旋转轴之间的间隙可以确保旋转轴的平滑启动在适当的范围内。轴承的外径D，轴承的轴向长度L，在旋转轴与轴承之间的径向侧的间隙C和轴承端面的倾斜高度，其中法兰面对，δ，满足表达式L / D

35. 发明授权

US06851859B2 Bearing unit, production method therefor and spindle motor 失效
标题翻译：轴承单元及其生产方法和主轴电机
公开(公告)号：US06851859B2
公开(公告)日：2005-02-08
申请号：US10360408
申请日：2003-02-06
申请人： Toshikazu Takehana , Hidekazu Tokushima , Hideo Shikata , Katsutoshi Nii , Jun Hirose
发明人： Toshikazu Takehana , Hidekazu Tokushima , Hideo Shikata , Katsutoshi Nii , Jun Hirose
IPC分类号： F16C17/10 , F16C33/10 , F16C33/14 , F16C33/20 , F16C35/02 , H02K7/08 , H02K15/14 , F16C32/06 , B23P15/00
CPC分类号： F16C33/1035 , F16C17/026 , F16C33/107 , Y10T29/49639
摘要： A bearing unit comprises a bearing 60 formed of a sintered metal in which a magnetized magnetic powder is dispersed in its matrix and at least pores exposed on a bearing surface thereof are sealed by impregnation with a resin; a non-magnetic housing 90 accommodating the bearing 60; and a lubricating fluid M made of a magnetic fluid.
摘要翻译：轴承单元包括由烧结金属形成的轴承60，其中磁化的磁性粉末分散在其基体中，并且至少暴露在其轴承表面上的孔通过用树脂浸渍而被密封; 容纳轴承60的非磁性壳体90; 以及由磁性流体制成的润滑液M。

36. 发明授权

US06846109B2 Sintered bearing and production method therefor 失效
标题翻译：烧结轴承及其生产方法
公开(公告)号：US06846109B2
公开(公告)日：2005-01-25
申请号：US10392297
申请日：2003-03-18
申请人： Noriyuki Yoshimura , Jun Hirose , Katsutoshi Nii
发明人： Noriyuki Yoshimura , Jun Hirose , Katsutoshi Nii
IPC分类号： F16C17/02 , F16C33/10 , F16C33/12 , F16C33/20 , B21D53/10
CPC分类号： F16C33/14 , F16C17/026 , F16C33/107 , F16C33/12 , F16C33/201 , F16C2204/60 , F16C2220/20 , F16C2223/04 , F16C2223/70 , Y10S384/902 , Y10T29/49639
摘要： A production method for a sintered bearing, comprises compacting a raw metallic material powder into a bearing green compact; sintering the green compact into a sintered compact; and forming a resin coating over the entire surface of the sintered compact by electrodeposition.
摘要翻译：一种烧结轴承的制造方法，其特征在于，将原料金属粉末压成轴承式压坯; 将生坯压坯烧成烧结体; 并通过电沉积在烧结体的整个表面上形成树脂涂层。

37. 发明授权

US06477133B1 Disk drive with unbalance correcting mechanism 失效
标题翻译：磁盘驱动器与不平衡校正机制
公开(公告)号：US06477133B1
公开(公告)日：2002-11-05
申请号：US09644854
申请日：2000-08-24
申请人： Yasuhiro Yoshimura , Yoshishige Endo , Katsutoshi Nii , Yoshihiro Satou , Yoshiaki Yamauchi , Noriyuki Kumasaka , Kazuto Oyama , Hisahiro Miki , Tomoki Hirata
发明人： Yasuhiro Yoshimura , Yoshishige Endo , Katsutoshi Nii , Yoshihiro Satou , Yoshiaki Yamauchi , Noriyuki Kumasaka , Kazuto Oyama , Hisahiro Miki , Tomoki Hirata
IPC分类号： G11B2300
CPC分类号： G11B33/08 , G11B17/0284
摘要： A disk drive is realized, which omits running-in for stabilizing a change in a correcting function produced by sliding between balls and a rolling groove in an unbalance correcting mechanism, and prevents immobility and straying of balls, and which comprises a unit mechanism assembled by using 12 balls subjected to surface treatment with heptadecafluorodecyltrimethoxysilane and a turntable plated with a chemical nickel plating containing phosphorus and boron to have a thickness of 5 &mgr;m and by injecting 1 microliter of ester oil into the rolling groove, and further comprises a recess formed in a sidewall of the rolling groove of the unbalance correcting mechanism to prolong the service life of the correcting function.
摘要翻译：实现了一种磁盘驱动器，其省略了进入，用于稳定由不平衡校正机构中的球和滚动槽之间的滑动产生的校正功能的变化，并且防止球的不动和偏移，并且包括由单元机构组装的单元机构使用用十七氟癸基三甲氧基硅烷进行表面处理的12个滚珠和镀有含磷和硼的化学镀镍的转台，其厚度为5um，并通过将1微升的酯油注入到滚动槽中，并且还包括形成在不平衡校正机构的滚动槽的侧壁延长校正功能的使用寿命。

38. 发明授权

US06469866B1 Spindle motor and magnetic disc device with hydrodynamic bearing 失效
标题翻译：主轴电动机和带有流体动力轴承的磁盘装置
公开(公告)号：US06469866B1
公开(公告)日：2002-10-22
申请号：US09504043
申请日：2000-02-14
申请人： Katsutoshi Nii , Masaru Muranishi , Shozo Saegusa , Tsuyoshi Takahashi , Kenji Tomida , Takashi Matsuki , Yuuichi Yanagase , Mitsuyuki Tsuyuki , Shinobu Yoshida , Hiroshi Nishida , Kazuhiko Kawakami
发明人： Katsutoshi Nii , Masaru Muranishi , Shozo Saegusa , Tsuyoshi Takahashi , Kenji Tomida , Takashi Matsuki , Yuuichi Yanagase , Mitsuyuki Tsuyuki , Shinobu Yoshida , Hiroshi Nishida , Kazuhiko Kawakami
IPC分类号： G11B1920
CPC分类号： H02K7/09 , F16C17/028 , F16C17/045 , F16C17/047 , F16C17/10 , F16C17/26 , F16C33/1035 , F16C33/107 , F16C2370/12 , G11B19/2009 , G11B19/2036 , H02K7/085
摘要： A rotary shaft is rotatably supported by a hydrodynamic fluid radial bearing and a hydrodynamic fluid thrust bearing which are excellent in shock resistance, an bearing arrangement in which vibration in a translation mode of the shaft, among vibration components caused by unbalance force exerted to the rotary shaft, is supported by the radial bearing, and vibration in conical mode is supported by the thrust bearing, magnetic fluid is used as lubrication oil, and a permanent magnet is located between the radial bearing and the thrust bearing so as to apply a magnetic attracting force between the rotary shaft and the thrust bearing so as to carry out axial positioning in order to use the magnetic disc device in an arbitrary attaching posture. With this arrangement, the magnetic disc device using such a bearing arrangement can enhance portability, thinning and antishock ability, and reduce noise and power consumption, thereby it is possible to provide a note-type personal computer with a high degree of reliability.
摘要翻译：旋转轴由能够抗冲击性优异的流体动力流体径向轴承和流体动力学流体推力轴承可旋转地支撑，轴承装置，其中轴的平移模式中的振动由施加到旋转体的不平衡力引起的振动分量之中轴由径向轴承支撑，锥形模式的振动由推力轴承支撑，磁流体用作润滑油，永磁体位于径向轴承和推力轴承之间，以便施加磁吸力旋转轴和推力轴承之间的力，以便执行轴向定位，以便以任意的安装姿势使用磁盘装置。通过这种布置，使用这种轴承装置的磁盘装置可以提高便携性，变薄和抗震能力，并且降低噪声和功耗，从而可以提供具有高度可靠性的笔记型个人计算机。

39. 发明授权

US06243230B1 Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit 有权
标题翻译：带有流体动力流体轴承单元的磁盘驱动单元和带有驱动单元的磁盘设备
公开(公告)号：US06243230B1
公开(公告)日：2001-06-05
申请号：US09277163
申请日：1999-03-26
申请人： Katsutoshi Nii , Kenji Tomida , Hiroshi Nishida , Kouki Uefune , Yuuichi Yanagase , Masaru Muranishi , Takashi Kouno , Kazuhiko Kawakami , Hisanobu Kanamaru , Noriyuki Kumasaka
发明人： Katsutoshi Nii , Kenji Tomida , Hiroshi Nishida , Kouki Uefune , Yuuichi Yanagase , Masaru Muranishi , Takashi Kouno , Kazuhiko Kawakami , Hisanobu Kanamaru , Noriyuki Kumasaka
IPC分类号： G11B1702
CPC分类号： H02K5/1675 , F16C17/028 , F16C33/1075 , F16C2370/12 , G11B19/2018
摘要： A disk drive unit includes a rotary member, which has a spindle, and has an information-recording disk fixedly mounted thereon, and a bearing unit rotatably supporting the spindle. The bearing unit includes a radial bearing device, provided in opposed relation to an outer peripheral surface of the spindle, and a thrust bearing device provided in opposed relation to a distal end surface of the spindle. The radial bearing device has a concentric arc-shaped bearing surface, which is concentric with the circular outer periphery of the spindle, and a non-concentric arc-shaped bearing surface which is non-concentric with the circular outer periphery of the spindle. The disk drive unit further includes a motor for imparting a rotational force to the spindle, and a lubricating fluid filled in the bearing unit.
摘要翻译：磁盘驱动单元包括具有主轴的旋转构件，并且具有固定地安装在其上的信息记录盘，以及可旋转地支撑心轴的轴承单元。轴承单元包括与主轴的外周表面相对设置的径向轴承装置，以及与主轴的远端表面相对设置的止推轴承装置。径向轴承装置具有与心轴的圆形外周同心的同心圆弧状的支承面，以及与心轴的圆形外周不同心的非同心圆弧状的支承面。盘驱动单元还包括用于向主轴施加旋转力的马达和填充在轴承单元中的润滑流体。

40. 发明授权

US5821655A Magnetic fluid bearing unit structure and motor having the same 失效
标题翻译：磁流体轴承单元结构和电动机相同
公开(公告)号：US5821655A
公开(公告)日：1998-10-13
申请号：US786964
申请日：1997-01-24
申请人： Hidekazu Tokushima , Motohiro Miyasaka , Michihiro Aizawa , Hideo Shikata , Katsutoshi Nii
发明人： Hidekazu Tokushima , Motohiro Miyasaka , Michihiro Aizawa , Hideo Shikata , Katsutoshi Nii
IPC分类号： F16C17/10 , F16C32/04 , F16C33/10 , H02K5/16 , H02K5/167 , F16C32/06
CPC分类号： F16C17/10 , F16C33/1035 , H02K5/1677
摘要： A magnetic fluid bearing unit has a bearing housing, a bearing member having magnetic fluid as a lubricating agent, a rotary body rotatively supported by the bearing member, an upper permanent magnet arranged inside the bearing housing, and a lower permanent magnet arranged inside the bearing housing, the bearing member being sandwiched by the upper permanent magnet and the lower permanent magnet. The bearing member is a radial porous oil-containing bearing member in which the magnetic fluid is impregnated. The upper permanent magnet is set to have one direction of magnetic pole orientation, and the lower permanent magnet is set to have the same direction of magnetic pole orientation as the upper permanent magnet. The bearing member is sandwiched by the upper permanent magnet and the lower permanent magnet to confine the magnetic fluid. Over a wide range of rotation speeds, the leakage and the scattering of the magnetic fluid from the bearing unit can be prevented. The bearing unit for a compact size motor having a high rotation accuracy can be obtained.
摘要翻译：磁性流体轴承单元具有轴承壳体，具有作为润滑剂的磁性流体的轴承构件，由轴承构件可旋转地支撑的旋转体，布置在轴承壳体内部的上部永磁体和布置在轴承内部的下部永磁体壳体，轴承构件被上永磁体和下永磁体夹持。轴承构件是其中浸渍有磁性流体的径向多孔含油轴承构件。上永磁体被设定为具有一个方向的磁极取向，并且下永磁体被设置为具有与上永磁体相同的磁极方位方向。轴承构件被上永磁体和下永磁体夹持以限制磁流体。在很宽的旋转速度范围内，可以防止来自轴承单元的磁性流体的泄漏和散射。可以获得具有高旋转精度的紧凑型电动机的轴承单元。

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