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1. 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。

2. 发明授权

US06951423B2 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：US06951423B2
公开(公告)日：2005-10-04
申请号：US10401289
申请日：2003-03-27
申请人： Noriyuki Yoshimura , Katsutoshi Nii
发明人： Noriyuki Yoshimura , Katsutoshi Nii
IPC分类号： F16C33/10 , B22F3/24 , B22F3/26 , B22F5/00 , C25D13/00 , C25D13/12 , F16C33/12 , F16C33/14
CPC分类号： F16C33/14 , B22F2003/245 , B22F2998/00 , F16C33/104 , F16C33/12 , F16C2204/60 , F16C2220/20 , F16C2220/60 , F16C2223/70 , Y10S384/902 , Y10T29/49705 , Y10T29/49707 , B22F3/11 , B22F3/26
摘要： A sintered bearing is produced by a production method comprising: compacting a metallic raw material powder into a bearing green compact; sintering the green compact into a sintered compact; forming a resin coating 20 over the entire surface of the sintered compact; removing the resin coating 20 on a bearing surface 14a of the sintered compact; and impregnating a lubricating fluid L through the bearing surface 14a from which the resin coating 20 is removed.
摘要翻译：烧结轴承通过以下方法制造：包括：将金属原料粉末压实成轴承坯料; 将生坯压坯烧成烧结体; 在烧结体的整个表面上形成树脂涂层20; 在烧结体的承载面14a上除去树脂涂层20; 并且将润滑流体L浸渍到通过其移除树脂涂层20的支承表面14a。

3. 发明授权

US07218023B2 Spindle motor 失效
标题翻译：主轴电机
公开(公告)号：US07218023B2
公开(公告)日：2007-05-15
申请号：US10331698
申请日：2002-12-30
申请人： Jun Hirose , Katsutoshi Nii , Shunichi Togashi
发明人： Jun Hirose , Katsutoshi Nii , Shunichi Togashi
IPC分类号： H02K7/08
CPC分类号： F16C33/107 , F16C17/045 , F16C17/102 , F16C2370/12 , G11B19/2018 , H02K5/1677 , H02K7/086
摘要： The spindle motor includes a rotational shaft 30 which has a conical portion 34, whose outer surface gradually widens toward a thrust dynamic pressure bearing 70, and a straight portion 33 with a fixed outer diameter. Radial dynamic pressure bearing 60 supports the radial load of the rotating shaft 30. The radial bearing has a conical bearing surface 64 and a straight bearing surface 63 corresponding to the conical portion 34 and the straight portion 33 of the rotating shaft 30, respectively. Rotating shaft 30 is supported and aligned during rotation by fluid dynamic forces generated by the conical portion 34.
摘要翻译：主轴电机包括旋转轴30，旋转轴30具有锥形部分34，其外表面朝向推力动压轴承70逐渐变宽，并具有固定外径的直线部分33。径向动压轴承60支撑旋转轴30的径向载荷。径向轴承具有分别对应于旋转轴30的锥形部分34和直线部分33的圆锥形支承表面64和直线支承表面63。旋转轴30通过由锥形部分34产生的流体动力在旋转期间被支撑和对准。

4. 发明授权

US06756715B2 Spindle motor 失效
标题翻译：主轴电机
公开(公告)号：US06756715B2
公开(公告)日：2004-06-29
申请号：US10360000
申请日：2003-02-06
申请人： Jun Hirose , Katsutoshi Nii , Tadayoshi Yano , Toshikazu Takehana , Hidekazu Tokushima
发明人： Jun Hirose , Katsutoshi Nii , Tadayoshi Yano , Toshikazu Takehana , Hidekazu Tokushima
IPC分类号： H02K512
CPC分类号： F16C17/028 , F16C17/107 , F16C17/26 , F16C2370/12 , G11B19/2009 , H02K5/1675
摘要： A spindle motor comprises a housing 10 including a through hole with a pair of apertures, one of the apertures being closed by a thrust plate 70 and the other aperture being open; a bearing 60 accommodated in the housing 90; a rotating shaft 30 inserted into the bearing 60; a displacement restraining structure for restraining movement of the rotating shaft 30 toward the open aperture by engaging the rotation shaft 30 with the bearing 60; a rotating member secured to the rotating shaft; and a motor generating electromagnetic function for rotating the rotating member. The through hole of the housing 90 includes a large diameter portion 92A at the thrust plate 70 side and a small diameter portion 92B at the open aperture side, and a stepped portion 93 is formed at a transition portion between the large diameter portion 92A and the small diameter portion 92B. At least a portion of the bearing 60 is located at the large diameter portion 92A side of the housing 90, and engages with the stepped portion 93 of the housing 90.
摘要翻译：主轴电动机包括壳体10，壳体10包括具有一对孔的通孔，其中一个孔由止推板70封闭，另一个孔打开; 容纳在壳体90中的轴承60; 插入到轴承60中的旋转轴30; 用于通过使旋转轴30与轴承60接合来限制旋转轴30朝向开口的运动的位移限制结构; 固定在旋转轴上的旋转构件; 以及用于旋转旋转构件的产生电磁功能的电动机。壳体90的通孔包括在推力板70侧的大直径部分92A和在开口侧的小直径部分92B，并且台阶部分93形成在大直径部分92A和小径部92B。轴承60的至少一部分位于壳体90的大直径部分92A侧，并与壳体90的阶梯部分93接合。

5. 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。

6. 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。

7. 发明申请

US20060088234A1 Fluid dynamic pressure bearing and production method for the same 审中-公开
公开(公告)号：US20060088234A1
公开(公告)日：2006-04-27
申请号：US11251904
申请日：2005-10-18
申请人： Katsutoshi Nii , Hideo Shikata
发明人： Katsutoshi Nii , Hideo Shikata
IPC分类号： F16C32/06
CPC分类号： F16C17/045 , F16C33/107 , F16C33/12 , F16C33/14 , F16C2204/60 , F16C2220/20 , F16C2223/04 , F16C2226/12
摘要： A fluid dynamic pressure bearing composed of a cylindrical sintered compact includes: a thrust region which is formed on an end surface of the bearing and receives at least a thrust load; a roughed portion having small peaks and valleys formed on the thrust region; and thrust recesses for generating thrust fluid dynamic pressure, which are formed on the thrust region.

8. 发明授权

US06369981B2 Disk drive unit with hydrodynamic fluid bearing unit and disk device with said drive unit 失效
公开(公告)号：US06369981B2
公开(公告)日：2002-04-09
申请号：US09975265
申请日：2001-10-12
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.

9. 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.

10. 发明授权

US4529209A Hydraulic machine shaft seal with centrifugal removal of sand and soil particles 失效
标题翻译：液压机轴封，离心除砂和土颗粒
公开(公告)号：US4529209A
公开(公告)日：1985-07-16
申请号：US511097
申请日：1983-06-06
申请人： Katsutoshi Nii , Kinpei Okano , Shunzo Tomioka
发明人： Katsutoshi Nii , Kinpei Okano , Shunzo Tomioka
IPC分类号： F16J15/34 , F16J15/40 , F16J15/42
CPC分类号： F16J15/40 , F16J15/342 , Y10S277/93
摘要： A rotary shaft of a hydraulic machine has a collar projecting radially outwardly therefrom. The rotary shaft and the collar are encased by a casing which carries a seal ring to be pressed against an axial end surface of the collar to form a fluid-tight seal therebetween. The axial end surface of the collar slidingly contacting with the seal ring is provided with a plurality of radial grooves extending from the central portion of the collar to the outer peripheral edge thereof. As the rotary shaft rotates at a high speed, a centrifugal force is generated to separate sand and soil particles from the water within the radial grooves.
摘要翻译：液压机的旋转轴具有从其径向向外突出的轴环。旋转轴和轴环由壳体包围，该壳体承载密封环以压靠套环的轴向端面以在其间形成流体密封。与密封环滑动接触的轴环的轴向端面设置有从轴环的中心部分延伸到其外周边缘的多个径向凹槽。当旋转轴高速旋转时，产生离心力，以将砂土颗粒与径向槽内的水分离。

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