公开(公告)号：US5791785A

公开(公告)日：1998-08-11

申请号：US800055

申请日：1997-02-14

申请人： Tamotsu Nose ,  Masato Gomyo ,  Masamichi Hayakawa

发明人： Tamotsu Nose ,  Masato Gomyo ,  Masamichi Hayakawa

IPC分类号： F16C17/10 ,  F16C33/10 ,  F16C33/74 ,  H02K5/16 ,  F16C32/06

CPC分类号： F16C33/107 ,  F16C17/107 ,  H02K5/1677

摘要： A hydrodynamic bearing apparatus for use in a spindle motor. The bearing includes at least two hydrodynamic bearing sections for supporting a rotary member with respect to a fixed member, a hydrodynamic pressure generating mechanism, a space between the two hydrodynamic bearing sections, a lubricant, two capillary sealing sections, and a lubricant reservoir. In the hydrodynamic bearing apparatus, the hydrodynamic pressure generating mechanism is positioned at the hydrodynamic bearing sections, and the capillary sealing section of the two capillary sealing sections has a space capacity which allows for an increased amount of lubricant. The lubricant is moved by a predetermined amount in one direction by a differential pressure generated at the hydrodynamic bearing sections when the rotary member rotates.

摘要翻译： 一种用于主轴电机的流体动力轴承装置。 轴承包括用于相对于固定构件支撑旋转构件的至少两个流体动力轴承部分，流体动力学压力产生机构，两个流体动力轴承部分之间的空间，润滑剂，两个毛细管密封部分和润滑剂储存器。 在流体动压轴承装置中，流体动力学压力产生机构位于流体动力轴承部分，两个毛细管密封部分的毛细管密封部分具有允许增加润滑剂量的空间容量。 当旋转构件旋转时，润滑剂在流体动压轴承部分产生的差压在一个方向上移动预定量。

公开(公告)号：US5806987A

公开(公告)日：1998-09-15

申请号：US796805

申请日：1997-02-06

申请人： Tamotsu Nose ,  Masato Gomyo ,  Masamichi Hayakawa ,  Hideki Kanebako

发明人： Tamotsu Nose ,  Masato Gomyo ,  Masamichi Hayakawa ,  Hideki Kanebako

IPC分类号： F16C17/02 ,  F16C17/04 ,  F16C33/10 ,  G11B19/20 ,  F16C32/06

CPC分类号： F16C33/107 ,  F16C17/02 ,  F16C17/04 ,  F16C17/107 ,  G11B19/2018 ,  F16C2370/12

摘要： A hydrodynamic bearing apparatus which includes at least two hydrodynamic bearing sections for rotatably supporting a shaft member and a cylindrical member, where the bearing sections constitute a continuous bearing clearance. A hydrodynamic pressure generating portion is provided for generating a hydrodynamic pressure in a lubricant which is filled in the bearing clearance. One hydrodynamic generating portion is shaped asymmetrically to move the lubricant in one direction. Two capillary sealing sections are also provided. One capillary sealing section is positioned downstream in a moving direction of the lubricant and is configured such that the lubricant moves by a predetermined amount to cancel a differential pressure which is generated at the hydrodynamic bearing sections.

摘要翻译： 一种流体动力轴承装置，其包括用于可旋转地支撑轴构件和圆柱形构件的至少两个流体动力轴承部分，其中所述轴承部分构成连续的轴承间隙。 提供流体动力学压力产生部分，用于在填充在轴承间隙中的润滑剂中产生流体动力学压力。 一个流体动力产生部分成形为不对称以在一个方向上移动润滑剂。 还提供了两个毛细密封部分。 一个毛细管密封部分沿着润滑剂的移动方向位于下游，并且被构造成使得润滑剂移动预定量以抵消在流体动压轴承部分处产生的压差。

公开(公告)号：US5743656A

公开(公告)日：1998-04-28

申请号：US702012

申请日：1996-08-26

申请人： Masato Gomyo ,  Tamotsu Nose ,  Masamichi Hayakawa

发明人： Masato Gomyo ,  Tamotsu Nose ,  Masamichi Hayakawa

IPC分类号： F16C33/10 ,  G11B19/20 ,  H02K5/16 ,  F16C33/74

CPC分类号： H02K5/1675 ,  F16C17/045 ,  F16C33/107 ,  F16C33/746 ,  G11B19/2009 ,  F16C2370/12

摘要： A hydrodynamic bearing apparatus comprises at least two hydrodynamic bearing units which rotatably support a rotation member against a fixed member by hydrodynamic pressure of a lubricant filled in a bearing space. A thrust plate is adhesively bonded on one of the rotation member and fixed member to support the rotation member in an axial direction. The thrust plate and rotation member or fixed member form a junction. A mechanical bonding device bonds the thrust plate onto one of the rotation member and fixed member. A sealing agent prevents the lubricant from leaking from the junction between the thrust plate and the rotation member or fixed member. The sealing agent fills a space that communicates with the junction.

摘要翻译： 流体动力轴承装置包括至少两个流体动力轴承单元，其通过填充在轴承空间中的润滑剂的流体动力学压力将旋转构件可旋转地支撑在固定构件上。 推力板粘合在旋转构件和固定构件中的一个上，以沿轴向支撑旋转构件。 止推板和旋转构件或固定构件形成接合点。 机械接合装置将推力板结合到旋转构件和固定构件中的一个上。 密封剂防止润滑剂从推力板和旋转构件或固定构件之间的接合处泄漏。 密封剂填充与连接处连通的空间。

公开(公告)号：US5628569A

公开(公告)日：1997-05-13

申请号：US324985

申请日：1994-10-18

申请人： Masamichi Hayakawa ,  Masato Gomyo ,  Toshihiko Miyakoshi ,  Arihiro Yonezawa

发明人： Masamichi Hayakawa ,  Masato Gomyo ,  Toshihiko Miyakoshi ,  Arihiro Yonezawa

IPC分类号： F16C17/22 ,  F16C33/10 ,  G11B19/20 ,  F16C32/06 ,  F16C33/82

CPC分类号： G11B19/2009 ,  F16C17/102 ,  F16C17/22 ,  F16C33/107 ,  F16C33/746 ,  F16C2370/12

摘要： A fluid bearing unit includes a shaft; a bearing; bearing fluid arranged between a shaft and a bearing which are rotatably engaged with each other so that they can be relatively rotated so as to generate dynamic pressure in the bearing fluid, wherein at least one of the bearing and the member for fixing the bearing unit is made of iron alloy having the volumetric magnetostriction of which acts to cancel the thermal expansion so as to become the coefficient of linear expansion thereof lower than that of the shaft.

摘要翻译： 流体轴承单元包括轴; 轴承 轴承流体布置在轴和轴承之间，其可旋转地彼此接合，使得它们可以相对旋转，以便在轴承流体中产生动压，其中轴承和用于固定轴承单元的构件中的至少一个是 由铁合金制成，其体积磁致伸缩力起到抵消热膨胀的作用，使得其线性膨胀系数低于轴的线膨胀系数。

公开(公告)号：US06147424A

公开(公告)日：2000-11-14

申请号：US115213

申请日：1998-07-14

申请人： Masato Gomyo ,  Hideki Kanebako ,  Kazushi Miura ,  Masamichi Hayakawa

发明人： Masato Gomyo ,  Hideki Kanebako ,  Kazushi Miura ,  Masamichi Hayakawa

IPC分类号： F16C17/24 ,  F16C33/10 ,  G11B19/20 ,  F16C17/00

CPC分类号： G11B19/2009 ,  F16C17/026 ,  F16C17/24 ,  F16C33/107 ,  F16C33/746 ,  F16C2370/12 ,  H02K2201/09

摘要： A gas dynamic pressure bearing apparatus comprises a fixed shaft, a bearing member which is positioned opposite from the fixed shaft and at least a radial gas dynamic pressure bearing portion and a thrust gas dynamic pressure bearing portion which are positioned in a space between the fixed shaft and the bearing member. Dynamic pressure generating means are included for pressurizing gas in the radial gas dynamic pressure bearing portion and the thrust gas dynamic pressure bearing portion such that dynamic pressure action is generated. The bearing member is rotatably supported in relation to the fixed shaft by means of the pressurizing action such that rotational driving is performed by a predetermined motor. The radial gas dynamic pressure bearing portion and the thrust gas dynamic pressure bearing portion are structured such that gas is sealed from the space around the motor by a space sealing means and that gas flows from one side to other. The flowing gas is circulated between the radial gas dynamic pressure bearing portion and the thrust gas dynamic pressure bearing portion through a gas circulation path. A gas passage is formed on the fixed shaft such that the gas circulation path is connected to the outer end of the fixed shaft. Dust collecting means is formed in one of the gas circulation and the gas passage.

摘要翻译： 一种气体动压轴承装置，包括固定轴，与固定轴相对的轴承构件和至少一个径向气体动压承受部分和推力气体动压轴承部分，其位于固定轴之间的空间中 和轴承构件。 动态压力发生装置包括用于对径向气体动压轴承部分和推力气体动压轴承部分中的气体进行加压，从而产生动态压力作用。 轴承构件通过加压动作相对于固定轴可旋转地支撑，使得通过预定的电动机执行旋转驱动。 径向气体动压轴承部分和推力气体动压轴承部分被构造成使得气体通过空间密封装置从电动机周围的空间密封，并且气体从一侧流向另一侧。 流动的气体通过气体循环路径在径向气体动压轴承部分和推进气体动压轴承部分之间循环。 气体通道形成在固定轴上，使得气体循环路径连接到固定轴的外端。 在气体循环和气体通道中的一个中形成集尘装置。

公开(公告)号：US06296391B1

公开(公告)日：2001-10-02

申请号：US09093098

申请日：1998-06-08

申请人： Masamichi Hayakawa ,  Masato Gomyo ,  Hideki Kanebako ,  Kazushi Miura

发明人： Masamichi Hayakawa ,  Masato Gomyo ,  Hideki Kanebako ,  Kazushi Miura

IPC分类号： F16C3206

CPC分类号： F16C17/107 ,  F16C17/026 ,  F16C17/045 ,  F16C33/107 ,  F16C33/74 ,  F16C2370/12 ,  G11B19/2009

摘要： A hydrodynamic bearing apparatus comprises two hydrodynamic bearing sections which have a shaft member, a bearing member fit to the shaft member with a predetermined space therein, lubricants filling the space between the shaft member and the bearing member, and which are separately placed in the axial direction of the shaft member. The lubricants of the two hydrodynamic bearing sections are separated from each other by an air layer. The lubricants are pressured by hydrodynamic generating grooves formed on the hydrodynamic bearing sections such that the shaft member and the bearing member are rotatably supported in relation to each other. The hydrodynamic generating grooves separately formed on the two hydrodynamic bearing sections are formed into an unbalanced shape such that the lubricants are moved in a predetermined direction to correct the slope of the shaft member and the bearing member when rotation is suspended. Capillary sealing sections are formed in continuation to end sections of each of the two hydrodynamic bearing sections to sustain the lubricants by capillarity. The maximum amount of the lubricant in one of the capillary sealing sections, which is located downstream in the moving direction of the lubricants, is established to be larger than the moving amount of the lubricants.

摘要翻译： 一种流体动力轴承装置包括两个流体动力轴承部分，它们具有一个轴部件，一个轴承部件，该轴承部件配合在其中具有预定空间的轴部件，润滑剂填充轴部件和轴承部件之间的空间，并分别放置在轴向 轴构件的方向。 两个流体动力轴承部分的润滑剂通过空气层彼此分离。 润滑剂由形成在流体动力轴承部分上的流体动力产生槽压力，使得轴构件和轴承构件相对于彼此可旋转地支撑。 分别形成在两个流体动力轴承部分上的流体动力产生槽形成为不平衡的形状，使得润滑剂沿预定方向移动，以在旋转停止时校正轴构件和轴承构件的倾斜度。 毛细管密封部分连续地形成在两个流体动力轴承部分中的每一个的端部部分上，以通过毛细管作用来维持润滑剂。 在位于润滑剂的移动方向下游的毛细管密封部分之一中的润滑剂的最大量被确定为大于润滑剂的移动量。

公开(公告)号：US5828795A

公开(公告)日：1998-10-27

申请号：US937389

申请日：1997-09-25

申请人： Toshihiko Miyakoshi ,  Masato Gomyo ,  Toshihiro Kobayashi ,  Masamichi Hayakawa ,  Hirofusa Shirai ,  Kenji Hanabusa

发明人： Toshihiko Miyakoshi ,  Masato Gomyo ,  Toshihiro Kobayashi ,  Masamichi Hayakawa ,  Hirofusa Shirai ,  Kenji Hanabusa

IPC分类号： F16C33/10 ,  F16C33/82 ,  F16J15/43

CPC分类号： F16J15/43 ,  F16C33/1035 ,  F16C33/746 ,  F16C33/765 ,  F16C2202/60 ,  F16C2370/12

摘要： A sealing device for use in a motor. The motor, which maintains a shaft: and a frame that are interconnected by a bearing, includes a magnetic-fluid-seating device and a collecting device. The magnetic-fluid-sealing device seals the bearing with a magnetic fluid to prevent particles and fluids from escaping the bearing, whereas, the collecting device collects any particles and fluids which may escape the magnetic-fluid-sealing device.

摘要翻译： 一种用于电动机的密封装置。 保持轴的马达和通过轴承互连的框架包括磁流体座椅装置和收集装置。 磁流体密封装置用磁性流体密封轴承，以防止颗粒和流体从轴承中逸出，而收集装置收集任何能够从磁流体密封装置逸出的颗粒和流体。

公开(公告)号：US06302586B1

公开(公告)日：2001-10-16

申请号：US09271734

申请日：1999-03-18

申请人： Masamichi Hayakawa

发明人： Masamichi Hayakawa

IPC分类号： F16C3374

CPC分类号： F16C33/107 ,  F16C33/10 ,  F16C33/74

摘要： A fluid sealing device for use in a motor having a fluid bearing for mounting a frame to a shaft. The fluid sealing device includes a bearing fluid reservoir, a sealing plate, and a bearing fluid absorbing pad. The bearing fluid reservoir is positioned at one axial end of the fluid bearing. The sealing plate is mounted on the frame and positioned axially outward of the bearing fluid reservoir. The sealing plate has an inner edge extending radially toward the shaft to provide a sealing space between the shaft and the sealing plate. A bearing fluid absorbing pad is mounted axially inward from the sealing plate. A capture space is provided between the bearing fluid absorbing pad, sealing plate and reservoir such that the bearing fluid absorbing pad is exposed to the reservoir.

摘要翻译： 一种用于具有用于将框架安装到轴上的流体轴承的电动机中的流体密封装置。 流体密封装置包括轴承流体储存器，密封板和轴承流体吸收垫。 轴承液储存器位于流体轴承的一个轴向端。 密封板安装在框架上并且在轴承液体储存器的轴向外侧定位。 密封板具有径向向轴延伸的内边缘，以在轴和密封板之间提供密封空间。 轴承液吸收垫从密封板轴向向内安装。 在轴承流体吸收垫，密封板和储存器之间提供捕获空间，使得轴承流体吸收垫暴露于储存器。

公开(公告)号：US20090142697A1

公开(公告)日：2009-06-04

申请号：US11947850

申请日：2007-11-30

申请人： Takeo Watanabe ,  Hiroo Kinoshita ,  Shinichi Yusa ,  Tomotaka Yamanaka ,  Masamichi Hayakawa ,  Yosuke Osawa ,  Satoshi Ogi ,  Yoshitaka Komuro

发明人： Takeo Watanabe ,  Hiroo Kinoshita ,  Shinichi Yusa ,  Tomotaka Yamanaka ,  Masamichi Hayakawa ,  Yosuke Osawa ,  Satoshi Ogi ,  Yoshitaka Komuro

IPC分类号： G03F7/004

CPC分类号： G03F7/0045 ,  G03F7/0046 ,  G03F7/0392 ,  Y10S430/106 ,  Y10S430/12 ,  Y10S430/121 ,  Y10S430/122 ,  Y10S430/123

摘要： To provide a photosensitive resin which realizes formation of a pattern having a good shape, without involving a problem in terms of poor compatibility between an acid generator and a photoresist primary-component polymer having an acid dissociable group, and a photosensitive composition containing the photosensitive resin.The photosensitive resin includes a repeating unit represented by formula (1): (wherein R1 represents a C2-C9 linear or branched divalent hydrocarbon group; each of R2 to R5 represents a hydrogen atom or a C1-C3 linear or branched hydrocarbon group; each of R6 and R7 represents an organic group, wherein R6 and R7 may together form a divalent organic group; and X− represents an anion); at least one of a repeating unit represented by formula (2): (wherein R8 represents a C2-C9 linear or branched hydrocarbon group) and a repeating unit represented by formula (3): a repeating unit represented by formula (4): optionally, a repeating unit represented by formula (5).

摘要翻译： 为了提供形成具有良好形状的图案的感光性树脂，不会引起酸产生剂和具有酸解离基团的光致抗蚀剂初级组分聚合物之间的相容性差，并且含有感光性树脂的感光性组合物 。 光敏树脂包括由式（1）表示的重复单元：（其中R1表示C2-C9直链或支链二价烃基; R2至R5各自表示氢原子或C1-C3直链或支链烃基; R6和R7表示有机基团，其中R6和R7可以一起形成二价有机基团; X代表阴离子）; 由式（2）表示的重复单元中的至少一种：其中R8表示C2-C9直链或支链烃基）和由式（3）表示的重复单元：式（4）表示的重复单元：任选地 ，式（5）表示的重复单元。

公开(公告)号：US06402385B1

公开(公告)日：2002-06-11

申请号：US09632712

申请日：2000-08-04

申请人： Masamichi Hayakawa ,  Hisaya Nakagawa ,  Michiaki Takizawa

发明人： Masamichi Hayakawa ,  Hisaya Nakagawa ,  Michiaki Takizawa

IPC分类号： F16C1702

CPC分类号： F16C33/1075 ,  F16C17/028 ,  F16C33/104

摘要： A dynamic pressure bearing apparatus comprises a rotary shaft, a sintered oil retaining bearing rotatably supporting the rotary shaft, the sintered oil retaining bearing having an interior surface defining an internal surface configuration for generating dynamic pressure to thereby form a dynamic pressure bearing between the rotary shaft and the sintered oil retaining bearing. The internal surface of the sintered oil retaining bearing comprises in a peripheral direction thereof, a minimum-gap section, a large-gap section and a separation groove section. The minimum-gap section has the minimum gap between the rotary shaft and the internal surface of the sintered oil retaining bearing. The large-gap section is continuous to the minimum-gap section, and has a larger gap between the rotary shaft and the sintered oil retaining bearing than that at the minimum-gap section to thereby increase pressure of lubrication oil that is present between the rotary shaft and the sintered oil retaining bearing toward the minimum-gap section. The separation groove section is provided between the large-gap section and the minimum-gap section. The separation groove section has a gap greater than that of the large-gap section. The minimum-gap section and the large-gap section define a dynamic pressure bearing surface section. The minimum-gap section is located at a predetermined angular position with respect to the separation groove section in a manner that a ratio between an arc angle defined by the dynamic pressure bearing surface section and the predetermined angular position of the minimum-gap section is 1:0 through 0.2. Furthermore, a maximum gap in the large-gap section with respect to the rotary shaft is two times or less greater than a minimum gap at the minimum-gap section with respect to the rotary shaft.

摘要翻译： 动态压力承载装置包括旋转轴，可旋转地支撑旋转轴的烧结油保持轴承，烧结保油轴承具有限定用于产生动压的内表面构造的内表面，从而在旋转轴之间形成动压力轴承 和烧结油保持轴承。 烧结保油轴承的内表面在其圆周方向上包括最小间隙部分，大间隙部分和分离槽部分。 最小间隙部分具有旋转轴与烧结保油轴承内表面之间的最小间隙。 大间隙部分与最小间隙部分连续，并且旋转轴和烧结保持轴承之间的间隙比最小间隙部分处的间隙大，从而增加旋转轴之间存在的润滑油的压力 轴和烧结保油轴承朝向最小间隙部分。 分离槽部设置在大间隙部和最小间隙部之间。 分离槽部的间隙大于大间隙部的间隙。 最小间隙部分和大间隙部分限定了动态承压面部分。 最小间隙部分相对于分离槽部分位于预定角度位置，使得由动压轴承表面部分限定的弧角与最小间隙部分的预定角位置之间的比率为1 ：0到0.2。 此外，大间隙部分相对于旋转轴的最大间隙是相对于旋转轴在最小间隙部分处的最小间隙的两倍或更小。