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1. 发明授权

US5108198A Magnetic fluid bearing apparatus and motor having magnetic fluid bearing apparatus 失效
标题翻译：具有磁性流体轴承装置的磁性流体轴承装置和电动机
公开(公告)号：US5108198A
公开(公告)日：1992-04-28
申请号：US553375
申请日：1990-07-17
申请人： Katsutoshi Nii , Kazuhiko Kawaike , Jun Matsubayashi , Satosi Uno
发明人： Katsutoshi Nii , Kazuhiko Kawaike , Jun Matsubayashi , Satosi Uno
IPC分类号： F16C32/04 , F16C33/10 , F16C33/82 , F16J15/40 , F16J15/43
CPC分类号： F16J15/43 , F16C33/1035 , F16C33/746
摘要： A sliding bearing an an end ring are mounted on a housing. A magnetic fluid sealing member comprises a permanent magnet and a magnetic fluid. A space is formed between the magnetic fluid sealing member and a lubricating fluid. A shaft has projection member or the end ring forms a spiral groove on an inner peripheral portion. The projection member of the shaft or the spiral groove of the end ring is disposed in an opposite position of the magnetic fluid sealing member. A magnetic fluid flow is disturbed by the projection member of the shaft or the spiral groove of the end ring according to a rotation of the shaft, then a magnetic fluid film is destructed instantaneously and the pressure at the space lowers. Air in the space is discharged from the housing. The scatter degree of the magnetic fluid is made slightly.
摘要翻译：一个端环的滑动轴承安装在外壳上。磁性流体密封构件包括永磁体和磁性流体。在磁性流体密封构件和润滑流体之间形成空间。轴具有突出构件或端环在内周部分上形成螺旋槽。轴的突出构件或端环的螺旋槽设置在磁性流体密封构件的相对位置。根据轴的旋转，磁流体流动被轴的突出构件或端环的螺旋槽扰动，然后瞬时破坏磁性流体膜并且空间中的压力降低。空间中的空气从外壳排出。磁性流体的散射度略微变小。

2. 发明授权

US5417507A Vertical motor, method of manufacturing same, polygon mirror motor using said motor, and bearing device for use in said motor 失效
标题翻译：立式电动机，制造方法，使用所述电动机的多面镜电动机以及用于所述电动机的轴承装置
公开(公告)号：US5417507A
公开(公告)日：1995-05-23
申请号：US13353
申请日：1993-02-04
申请人： Satosi Uno , Jun Matsubayashi , Katsutoshi Nii , Kazuhiko Kawaike
发明人： Satosi Uno , Jun Matsubayashi , Katsutoshi Nii , Kazuhiko Kawaike
IPC分类号： F16C33/10 , F16C33/82 , G02B26/12 , H02K5/124 , H02K5/16 , H02K21/14 , H02K29/08 , F16C32/06
CPC分类号： H02K29/08 , F16C33/1035 , G02B26/121 , H02K5/124 , H02K5/1675 , H02K21/14
摘要： There is disclosed a polygon mirror motor in which an annular projection is formed on an upper surface of a rotor support member supporting a polygon mirror, and the annular projection supports a part of a lower surface of the polygon mirror. Radial bearings supporting a shaft of the motor have a plurality of oil grooves extending over about a half of the dimension of the radial bearing in a thrust direction. A magnetic fluid is filled in a space defined by the shaft, a support tube of a bearing support member and the radial bearings.
摘要翻译：公开了一种多面镜电动机，其中在支撑多面镜的转子支撑构件的上表面上形成有环形突起，并且环形突起支撑多面镜的下表面的一部分。支撑马达的轴的径向轴承具有在推力方向上延伸超过径向轴承的尺寸的大约一半的多个油槽。磁性流体填充在由轴，轴承支撑构件的支撑管和径向轴承限定的空间中。

3. 发明授权

US5493161A Sealed magnetic fluid bearing for polygon mirror drive motor 失效
标题翻译：密封磁性流体轴承用于多面镜驱动电机
公开(公告)号：US5493161A
公开(公告)日：1996-02-20
申请号：US186166
申请日：1994-01-25
申请人： Satosi Uno , Sueo Akashi , Katsutoshi Nii , Kazuhiko Kawaike , Hiroo Hiroyama , Kosho Ishizaki
发明人： Satosi Uno , Sueo Akashi , Katsutoshi Nii , Kazuhiko Kawaike , Hiroo Hiroyama , Kosho Ishizaki
IPC分类号： F16C33/10 , F16C39/06 , H02K5/12 , H02K5/124 , H02K5/128 , H02K5/16 , H02K21/12 , H02K29/06 , H02K7/08 , H02K7/14 , H02K15/03
CPC分类号： H02K29/06 , F16C33/1035 , F16C39/063 , H02K21/12 , H02K5/12 , H02K5/124 , H02K5/128 , H02K5/1675 , F16C2370/22
摘要： A motor provided with a magnetic fluid bearing device for suppressing vibration and irregular rotation as well as preventing the magnetic fluid from being scattered from a bearing portion and the inside of the motor. The motor includes a rotor having a polygon mirror mounted thereon, a stator unit having driving coils, a rotor position detector and a rotor revolution detector attached thereto, a magnetic fluid bearing unit having a magnetic seal and a dynamic pressure seal attached thereto and a magnetic bearing. A triple seal structure for magnetic fluid which includes a first fluid seal constituted by the seals of the bearing unit, a second fluid seal constituted by a magnet of the rotor and a third fluid seal constituted by a magnet of the seal magnet is provided in the motor.
摘要翻译：具有用于抑制振动和不规则旋转的磁性流体轴承装置的电动机以及防止磁性流体从电动机的轴承部分和内部散射。电动机包括：安装有多面镜的转子，具有驱动线圈的定子单元，转子位置检测器和安装有转子旋转检测器的转子，具有磁性密封和附着于其上的动态压力密封的磁性流体轴承单元和磁性轴承。一种用于磁性流体的三重密封结构，其包括由轴承单元的密封件构成的第一流体密封件，由转子的磁体构成的第二流体密封件和由密封磁体的磁体构成的第三流体密封件发动机。

4. 发明授权

US5325006A Sealed magnetic fluid bearing for polygon mirror drive motor 失效
标题翻译：密封磁性流体轴承用于多面镜驱动电机
公开(公告)号：US5325006A
公开(公告)日：1994-06-28
申请号：US692662
申请日：1991-04-29
申请人： Satosi Uno , Sueo Akashi , Katsutoshi Nii , Kazuhiko Kawaike , Hiroo Hiroyama , Kosho Ishizaki
发明人： Satosi Uno , Sueo Akashi , Katsutoshi Nii , Kazuhiko Kawaike , Hiroo Hiroyama , Kosho Ishizaki
IPC分类号： F16C33/10 , F16C39/06 , H02K5/12 , H02K5/124 , H02K5/128 , H02K5/16 , H02K21/12 , H02K29/06 , H02K7/08 , H02K5/10 , H02K7/14
CPC分类号： H02K29/06 , F16C33/1035 , F16C39/063 , H02K21/12 , H02K5/12 , H02K5/124 , H02K5/128 , H02K5/1675 , F16C2370/22
摘要： A motor with a magnetic fluid bearing for suppressing vibration and irregular rotation as well as preventing the magnetic fluid from being scattered from a bearing portion in the inside of the motor. The motor includes a rotor having a polygon mirror mounted thereon, a stator unit having driving coils, a rotor position detector and a rotor revolution detector attached thereto, a magnetic fluid bearing unit having a magnetic seal and a dynamic pressure seal attached thereto and a magnetic bearing. A triple seal structure for magnetic fluid which includes a first fluid seal constituted by the seals of the bearing unit, a second fluid seal constituted by a magnet of the rotor and a third fluid seal constituted by a seal of the magnetic magnet is provided in the motor.
摘要翻译：具有用于抑制振动和不规则旋转的磁性流体轴承的电动机以及防止磁性流体从电动机内侧的轴承部分散出。电动机包括：安装有多面镜的转子，具有驱动线圈的定子单元，转子位置检测器和安装有转子旋转检测器的转子，具有磁性密封和附着于其上的动态压力密封的磁性流体轴承单元和磁性轴承。一种用于磁性流体的三重密封结构，包括由轴承单元的密封件构成的第一流体密封件，由转子的磁体构成的第二流体密封件和由磁体的密封件构成的第三流体密封件发动机。

5. 发明授权

US5574322A Motor, a printer having such a motor and a disk drive system having such a motor 失效
标题翻译：电动机，具有这种电动机的打印机和具有这种电动机的盘驱动系统
公开(公告)号：US5574322A
公开(公告)日：1996-11-12
申请号：US114176
申请日：1993-09-01
申请人： Katsutoshi Nii , Takeshi Nakajima , Ichiro Hashimoto , Satosi Uno , Sueo Akashi
发明人： Katsutoshi Nii , Takeshi Nakajima , Ichiro Hashimoto , Satosi Uno , Sueo Akashi
IPC分类号： H02K5/167 , G02B26/12 , G11B19/20 , H02K5/124 , H02K5/16 , H02K7/09
CPC分类号： F16C39/063 , F16C33/1035 , G02B26/121 , G11B19/20 , H02K5/124 , H02K5/163 , H02K7/09 , F16C2370/12
摘要： A motor has a rotor mounted on a stator to rotate about a rotation axis. The rotor is driven due to the interaction of a drive coil on the stator and a permanent magnet on the rotor. A magnetic thrust bearing, having permanent magnets on the stator and rotor, applies a radial thrust force. The radially outer surface of the permanent magnet on the rotor abuts a part of the rotor, so as to resist forces on the permanent magnet at high speed rotation or due to thermal deformation. The permanent magnets on the stator and the rotor may be axially offset by an offset of not more than 1/4 the axial length of the permanent magnets, or the axial length of the longer of the permanent magnets if they have different axial lengths. This generates an axial thrust at the thrust bearing, which counteracts the attractive force between the permanent magnet and the drive coil, and also the weight of the rotor.
摘要翻译：电动机具有安装在定子上以绕旋转轴线旋转的转子。转子由于定子上的驱动线圈和转子上的永磁体的相互作用而被驱动。在定子和转子上具有永磁体的磁力推力轴承施加径向推力。转子上的永磁体的径向外表面与转子的一部分相接触，以便在高速旋转或由于热变形时抵抗永磁体上的力。定子和转子上的永磁体可以轴向偏移永磁体的轴向长度不超过+ E，1/4 + EE的偏移，或者永久磁铁的较长的轴向长度具有不同的轴向长度。这在推力轴承处产生轴向推力，其抵消永磁体和驱动线圈之间的吸引力以及抵抗转子的重量。

6. 发明授权

US4938611A Bearing apparatus 失效
标题翻译：轴承装置
公开(公告)号：US4938611A
公开(公告)日：1990-07-03
申请号：US368836
申请日：1989-06-20
申请人： Katsutoshi Nii , Kazuhiko Kawaike , Hiroo Hiroyama , Satoshi Uno
发明人： Katsutoshi Nii , Kazuhiko Kawaike , Hiroo Hiroyama , Satoshi Uno
IPC分类号： F16C17/10 , F16C32/04 , F16C33/10 , F16C33/74 , F16C33/82 , F16J15/43
CPC分类号： F16J15/43 , F16C33/1035 , F16C33/746
摘要： A bearing apparatus comprises a housing formed of a non-magnetizable material and having a bottom portion, a fluid lubricating type radial bearing device provided coaxial with the housing and having a magnetic fluid sealing section and a radial bearing section, a thrust bearing device provided at the bottom portion of the housing, and a rotating shaft of a permeable material rotatably supported by the radial bearing device and thr thrust bearing device to extend through the radial bearing device. The magnetic fluid sealing section is disposed on the opening side of the housing with a predetermined spacing away from the radial bearing section whereby a space is provided between the magnetic fluid sealing section and a liquid surface of fluid lubricant filled in the radial bearing section.

7. 再颁专利

USRE35718E Bearing apparatus 失效
标题翻译：轴承装置
公开(公告)号：USRE35718E
公开(公告)日：1998-01-27
申请号：US528059
申请日：1995-09-14
申请人： Katsutoshi Nii , Kazuhiko Kawaike , Hiroo Hiroyama , Satoshi Uno
发明人： Katsutoshi Nii , Kazuhiko Kawaike , Hiroo Hiroyama , Satoshi Uno
IPC分类号： F16C33/10 , F16C33/82 , F16C32/06
CPC分类号： F16C33/10 , F16C33/1035 , F16C33/746
摘要： A bearing apparatus comprises a housing formed of a non-magnetizable material and having a bottom portion, a fluid lubricating type radial bearing device provided coaxial with the housing and having a magnetic fluid sealing section and a radial bearing section, a thrust bearing device provided at the bottom portion of the housing, and a rotating shaft of a permeable material rotatable supported by the radial bearing device and thr thrust bearing device to extend through the radial bearing device. The magnetic fluid sealing section is disposed on the opening side of the housing with a predetermined spacing away from the radial bearing section whereby a space is provided between the magnetic fluid sealing section and a liquid surface of fluid lubricant filled in the radial bearing section.
摘要翻译：轴承装置包括由不可磁化材料形成并具有底部的壳体，与壳体同轴设置并具有磁性流体密封部分和径向轴承部分的流体润滑型径向轴承装置，其中设置有推力轴承装置壳体的底部以及由径向轴承装置和推力轴承装置可旋转地支撑的可渗透材料的旋转轴，以延伸穿过径向轴承装置。磁性流体密封部分以距离径向轴承部分预定间隔的方式设置在壳体的开口侧上，从而在磁性流体密封部分和填充在径向支承部分中的流体润滑剂的液体表面之间设置空间。

8. 发明授权

US4746268A End face mechanical shaft seal for use in hydraulic machines and seal ring assembly for use in the shaft seal 失效
标题翻译：端面机械轴密封，用于液压机和密封环组件，用于轴封
公开(公告)号：US4746268A
公开(公告)日：1988-05-24
申请号：US79043
申请日：1987-07-29
申请人： Osamu Sugimoto , Teiji Horita , Katsutoshi Nii , Koozi Aizawa , Kazuhiko Kawaike , Ichiro Hitomi , Hisao Inoue
发明人： Osamu Sugimoto , Teiji Horita , Katsutoshi Nii , Koozi Aizawa , Kazuhiko Kawaike , Ichiro Hitomi , Hisao Inoue
IPC分类号： F04D29/12 , F16J15/34 , F04D29/08
CPC分类号： F16J15/3488 , F04D29/126
摘要： An end face mechanical shaft seal for use in a hydraulic machine includes a seal ring assembly detachably secured to a seal casing and having a sealing face which makes a sliding and fluid-tight contact with an annular seat face presented by a flange on the rotor shaft. The seal ring assembly is of a cartridge type which includes a ring casing having an annular groove formed in one end surface thereof and a seal ring partly received in the groove and fixed to the ring casing by an adhesive. Each of the ring casing and the seal ring is constituted by a plurality of arcuate sections or segments which are connected together in the circumferential direction.
摘要翻译：用于液压机械的端面机械轴密封件包括可拆卸地固定到密封壳体上并具有密封面的密封环组件，该密封面使得与由转子轴上的凸缘呈现的环形座面滑动和流体密封接触。密封圈组件是一种盒型，其包括环形壳体，该环形壳体在其一个端面中形成有环形槽，并且密封环部分地容纳在槽中并通过粘合剂固定到环形壳体。环形壳体和密封环中的每一个由在圆周方向上连接在一起的多个弓形部分或段构成。

9. 发明授权

US5035519A Submersible thrust bearing apparatus 失效
标题翻译：潜水推力轴承装置
公开(公告)号：US5035519A
公开(公告)日：1991-07-30
申请号：US488948
申请日：1990-03-05
申请人： Kooji Aizawa , Katsutoshi Nii , Kazuhiko Kawaike , Kengo Hasegawa , Akira Saruta , Ryoichi Nakashima
发明人： Kooji Aizawa , Katsutoshi Nii , Kazuhiko Kawaike , Kengo Hasegawa , Akira Saruta , Ryoichi Nakashima
IPC分类号： F16C17/04 , F16C17/08 , F16C17/14
CPC分类号： F16C17/04 , F16C17/08
摘要： A thrust bearing including a ring-like form plate body, and a plurality of rib members provided on the ring-like form plate body of the thrust bearing. Such a plurality of rib members may be provided on a thrust runner. The rib members cause a difference in load deformation amount in a circumferential direction according to thrust load and generate a wedge-shaped form clearance between a sliding face of the thrust bearing and a sliding face of the thrust runner. Since the wedge-shaped form clearance is formed by utilizing the load deformation, even when the thrust load becomes large, the wedge-shaped form clearance does not become narrow. The occurrence of dynamic pressure by the wedge effect and the formation of a water film can be assured, and the temperature increase between the sliding face of the thrust runner and the sliding face of the thrust bearing can be restrained.
摘要翻译：推力轴承，其包括环状的板状体，以及设置在推力轴承的环状的板状体上的多个肋部件。这样的多个肋构件可以设置在推力滑轮上。肋构件根据推力负载引起圆周方向的载荷变形量的差异，并且在推力轴承的滑动面和推力滑轮的滑动面之间产生楔形的间隙。由于通过利用负载变形来形成楔形的间隙，所以即使推力负荷变大，楔形间隙也不会变窄。可以确保通过楔形效应产生的动态压力和水膜的形成，并且可以抑制推力滑块的滑动面与推力轴承的滑动面之间的温度升高。

10. 发明申请

US20080010832A1 Production method for sintered fluid dynamic pressure bearing 审中-公开
标题翻译：烧结流体动压轴承的生产方法
公开(公告)号：US20080010832A1
公开(公告)日：2008-01-17
申请号：US11711028
申请日：2007-02-27
申请人： Hidekazu Tokushima , Takahiro Jinushi , Katsutoshi Nii , Zenzo Ishijima
发明人： Hidekazu Tokushima , Takahiro Jinushi , Katsutoshi Nii , Zenzo Ishijima
IPC分类号： B21K1/10
CPC分类号： F16C33/10 , B22F3/26 , B22F2998/00 , B22F2998/10 , B22F2999/00 , C22C1/0425 , F16C33/20 , F16C33/201 , F16C33/208 , Y10T29/49639 , B22F1/0003 , B22F1/0055 , B22F3/02 , B22F3/1007 , B22F3/16 , B22F2201/016 , B22F3/164 , B22F3/162
摘要： A sintered fluid dynamic pressure bearing completely seals or decreases the sizes of gaps formed in pores by shrinkage when a resin impregnated therein shrinks. The fluid dynamic pressure bearings can be reliably and easily produced using fewer processes while superior quality is maintained. A production method for a fluid dynamic pressure bearing includes a resin sealing process including a resin impregnating step in which a monomer of an anaerobic resin composed primarily of acrylate or methacrylate is impregnated in pores of a porous sintered compact, an excess resin washing off step in which excess resin adhering to the surface of the porous sintered compact is washed off, and a resin curing step in which the monomer of the anaerobic resin impregnated in the pores is cured by heating the porous sintered compact to at least the curing temperature of the resin after washing off the excess resin; the resin sealing process is repeatedly carried out, and a monomer of an anaerobic resin containing an organic peroxide at 0.1 to 1.0 mass % is used in at least the resin impregnating step of the last resin sealing process.
摘要翻译：当浸渍在其中的树脂收缩时，烧结流体动压轴承通过收缩完全密封或减小在孔中形成的间隙的尺寸。流体动压轴承可以使用更少的工艺可靠且容易地制造，同时保持优良的质量。流体动压轴承的制造方法包括：树脂密封方法，其包括树脂浸渍步骤，其中主要由丙烯酸酯或甲基丙烯酸酯组成的厌氧性树脂的单体浸渍在多孔烧结体的孔中，多余的树脂洗涤步骤洗涤多孔烧结体表面附着的多余的树脂，并且通过将多孔烧结体加热至至少树脂的固化温度来固化浸渍在孔中的厌氧性树脂的单体的树脂固化步骤洗掉多余的树脂后; 重复进行树脂密封处理，至少在最后一次树脂密封工序的树脂浸渍工序中使用含有0.1〜1.0质量％的有机过氧化物的厌氧性树脂的单体。

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