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1. 发明授权

US07092203B2 Method of manufacturing a fluid dynamic bearing applicable to a disk drive that includes welding a cover member to a cylindrical wall of a shaft base 失效
标题翻译：制造适用于磁盘驱动器的流体动力轴承的方法，其包括将盖构件焊接到轴座的圆柱形壁
公开(公告)号：US07092203B2
公开(公告)日：2006-08-15
申请号：US10711948
申请日：2004-10-15
申请人： Kiyofumi Inoue , Katsutoshi Hamada , Kaoru Uenosono
发明人： Kiyofumi Inoue , Katsutoshi Hamada , Kaoru Uenosono
IPC分类号： G11B17/02 , F16C32/06
CPC分类号： F16C17/107 , B23K26/28 , B23K2101/00 , F16C33/1045 , F16C33/745 , F16C43/02 , F16C2370/12 , G11B19/2009 , Y10T29/49636 , Y10T29/49639
摘要： A method of manufacturing a fluid dynamic bearing in which a stopper is fixed by welding. The bearing comprises a hub, a shaft erected on the hub, a sleeve, a cylindrical wall erected on the hub, and the stopper mounted on the cylindrical wall. The method comprises a first step to hold oil in the bearing gap, and a second step to locate the stopper on the peripheral wall being apart from the interface of the oil to fix the stopper by LASER welding.
摘要翻译：一种制造流体动力轴承的方法，其中通过焊接固定止动件。轴承包括轮毂，竖立在轮毂上的轴，套筒，竖立在轮毂上的圆柱形壁和安装在圆柱形壁上的止动件。该方法包括将油保持在轴承间隙中的第一步骤，以及将周边壁上的止动件定位成与油的界面分开的第二步骤，以通过激光焊接来固定止动器。

2. 发明申请

US20050081384A1 METHOD OF MANUFACTURING FLUID DYNAMIC BEARING AND SPINDLE MOTOR FOR A RECORDING DISK DRIVE UNIT AND A RECORDING DISK DRIVE UNIT HAVING THE SPINDLE MOTOR 失效
标题翻译：液压动力轴承的制造方法和用于记录盘驱动单元的主轴电动机和具有主轴电动机的记录盘驱动单元
公开(公告)号：US20050081384A1
公开(公告)日：2005-04-21
申请号：US10711948
申请日：2004-10-15
申请人： Kiyofumi Inoue , Katsutoshi Hamada , Kaoru Uenosono
发明人： Kiyofumi Inoue , Katsutoshi Hamada , Kaoru Uenosono
IPC分类号： F16C17/10 , B23K26/28 , F16C33/10 , F16C33/74 , F16C35/02 , F16C43/02 , G11B19/20 , H02K5/16 , H02K7/08 , H02K21/22 , B21K1/76
CPC分类号： F16C17/107 , B23K26/28 , B23K2101/00 , F16C33/1045 , F16C33/745 , F16C43/02 , F16C2370/12 , G11B19/2009 , Y10T29/49636 , Y10T29/49639
摘要： A method of manufacturing a fluid dynamic bearing in which a stopper is fixed by welding. The bearing comprises a hub, a shaft erected on the hub, a sleeve, a cylindrical wall erected on the hub, and the stopper mounted on the cylindrical wall. The method comprises a first step to hold oil in the bearing gap, and a second step to locate the stopper on the peripheral wall being apart from the interface of the oil to fix the stopper by LASER welding.
摘要翻译：一种制造流体动力轴承的方法，其中通过焊接固定止动件。轴承包括轮毂，竖立在轮毂上的轴，套筒，竖立在轮毂上的圆柱形壁和安装在圆柱形壁上的止动件。该方法包括将油保持在轴承间隙中的第一步骤，以及将周边壁上的止动件定位成与油的界面分开的第二步骤，以通过激光焊接来固定止动器。

3. 发明申请

US20090103841A1 Hydrodynamic bearing device and inspection method of amount of working fluid 审中-公开
标题翻译：流体动力轴承装置和工作液量检查方法
公开(公告)号：US20090103841A1
公开(公告)日：2009-04-23
申请号：US12314573
申请日：2008-12-12
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C17/243 , F16C33/103 , F16C33/726 , F16C33/745 , F16C2370/12
摘要： A hydrodynamic bearing device in a hydrodynamic bearing device in which a sleeve (2) is covered with a cover (5), which is capable of easily confirming that a working fluid is favorably filled between the cover and the sleeve, and easily confirming that an adhesive (21) which bonds the cover and the sleeve is favorably filled, and an inspection method of an amount of the working fluid are provided. By using the cover having translucency, the filled state of the working fluid is visually recognized through the cover, and is confirmed with an image recognition apparatus.
摘要翻译：一种流体动力轴承装置中的流体动力轴承装置，其中套筒（2）被盖（5）覆盖，所述盖（5）能够容易地确认工作流体有利地填充在盖和套筒之间，并且容易地确认粘合剂封盖和套筒的粘合剂（21）有利地被填充，并且提供了工作流体的量的检查方法。通过使用具有半透明度的盖，通过盖子目视识别工作流体的填充状态，并且用图像识别装置确认。

4. 发明申请

US20080240633A1 HYDRODYNAMIC BEARING AND SPINDLE MOTOR AND INFORMATION RECORDING AND REPRODUCING APPARATUS EQUIPPED WITH THE SAME 失效
标题翻译：水动力轴承和主轴电机及其相关信息记录和再生装置
公开(公告)号：US20080240633A1
公开(公告)日：2008-10-02
申请号：US11968455
申请日：2008-01-02
申请人： Kaoru Uenosono
发明人： Kaoru Uenosono
IPC分类号： F16C32/06 , H02K7/08 , G11B17/32
CPC分类号： G11B17/028 , F16C17/107 , G11B17/038 , G11B19/2036 , H02K5/1675 , H02K7/085
摘要： As axis direction dimensions become smaller in HDD spindle motors as a result of thinner and more compact designs, there is a demand for hydrodynamic bearings with a long lifespan. As a means of solving this problem, a lubricant reservoir section is formed between a sleeve side surface and a cover side surface with a depth varying in a circumferential direction lubricant is circulated in a bearing gap section, a sleeve end face gap section larger than a bearing gap between a sleeve end face and the cover, and a connecting channel, and the lubricant reservoir section and the sleeve end face gap section are connected via an introducing gap section having a bubble separation function.
摘要翻译：由于更薄更紧凑的设计，在HDD主轴电机中轴方向尺寸变小，因此需要长寿命的流体动力轴承。作为解决该问题的手段，在套筒侧面和罩侧面之间形成润滑剂储存部，其周向变化的深度润滑剂在轴承间隙部中循环，套筒端面间隙部大于套筒端面和盖子之间的轴承间隙和连接通道，并且润滑剂储存部分和套筒端面间隙部分经由具有气泡分离功能的引入间隙部分连接。

5. 发明授权

US06914358B2 Spindle motor and disk drive furnished therewith 有权
标题翻译：主轴电机和磁盘驱动器配备
公开(公告)号：US06914358B2
公开(公告)日：2005-07-05
申请号：US10250083
申请日：2003-06-03
申请人： Shinya Tokunaga , Kaoru Uenosono , Hideki Nishimura , Yoshito Oku
发明人： Shinya Tokunaga , Kaoru Uenosono , Hideki Nishimura , Yoshito Oku
IPC分类号： F16C17/10 , F16C17/02 , F16C17/04 , F16C33/10 , G11B19/20 , H02K5/16 , H02K7/08 , H02K21/22 , G11B17/02 , H02K5/00
CPC分类号： F16C17/107 , F16C33/107 , F16C33/1085 , F16C2370/12 , H02K5/1675
摘要： In a spindle motor utilizing dynamic-pressure bearings having a full-fill structure, a bearing configuration that balances and sustains at or above atmospheric pressure the internal pressure of the bearing oil. Thrust and radial bearing sections are configured within oil-filled bearing clearances in between the rotor, the shaft, and a shaft-encompassing hollow bearing member. A communicating passage one end of which opens on, radially inwardly along, the thrust bearing section is formed in the bearing member. Either axial ends of the bearing clearance in between the bearing member and shaft communicate through the passage. The communicating passage enables the oil to redistribute itself within the bearing clearances. Pressure difference between the axial upper and lower ends of the oil retained in between the bearing member and the shaft is compensated through the communicating passage, preventing incidents of negative pressure within the oil and of over-lift on the rotor.
摘要翻译：在使用具有全填充结构的动压轴承的主轴电机中，轴承构造在大气压力或大于等于或高于轴承油的内部压力的情况下平衡和维持。推力轴承和径向轴承部分配置在转子，轴和包含轴的中空轴承部件之间的充油轴承间隙内。在轴承部件上形成有连通通道，其一端在推力轴承部分沿径向向内开口。轴承构件和轴之间的轴承间隙的轴向端部通过通道连通。连通通道使得油在轴承间隙内重新分布。通过连通通道补偿保持在轴承构件和轴之间的油的轴向上端和下端之间的压力差，防止油内的负压和转子上的过度提升。

6. 发明申请

US20080137229A1 HYDRODYNAMIC BEARING DEVICE, SPINDLE MOTOR INCLUDING THE SAME, AND INFORMATION RECORDING AND REPRODUCING APPARATUS 审中-公开
标题翻译：水力轴承装置，包括它们的主轴电机，信息记录和再生装置
公开(公告)号：US20080137229A1
公开(公告)日：2008-06-12
申请号：US11948432
申请日：2007-11-30
申请人： Junichi Nakamura , Kaoru Uenosono , Toshifumi Hino
发明人： Junichi Nakamura , Kaoru Uenosono , Toshifumi Hino
IPC分类号： F16C32/06 , H02K7/08 , G11B17/02
CPC分类号： H02K7/085 , F16C17/10 , F16C33/1045 , F16C33/1075 , F16C2370/12
摘要： A hydrodynamic bearing device which can enhance operating efficiency of a step of filling a lubricant and also effectively suppress leakage of the lubricant to an outer peripheral portion of the hydrodynamic bearing device; a spindle motor including the same; and an information recording and reproducing apparatus are providedA hydrodynamic bearing device includes a sleeve, a shaft, a lubricant, a plurality of lube repellent application areas, and a lube repellent non-application area. The sleeve has an insertion hole as a bearing hole on at least one end. The shaft is inserted into the insertion hole of the sleeve and is supported so as to be relatively rotatable with respect to the sleeve. The lubricant is interposed in a clearance between the sleeve and the shaft. The plurality of lube repellent application areas are formed into a circular pattern with the shaft being a substantial center on at positions outside the insertion hole of an open upper surface of the sleeve in a radial direction of the shaft. The lube repellent non-application area is formed between two of the lube repellent application areas which are adjacent to each other.
摘要翻译：一种流体动力轴承装置，其可以提高填充润滑剂的步骤的操作效率，并且还有效地抑制润滑剂泄漏到流体动力轴承装置的外周部分; 包括其的主轴电动机; 并提供信息记录和再现装置。流体动力轴承装置包括套筒，轴，润滑剂，多个润滑剂驱避应用区域和润滑剂驱避剂非涂覆区域。套筒在至少一端具有作为轴承孔的插入孔。轴被插入到套筒的插入孔中并且被支撑成相对于套筒可相对旋转。润滑剂插入在套筒和轴之间的间隙中。多个润滑剂驱避应用区域形成为圆形图案，其中该轴在轴的径向方向上位于套筒的敞开的上表面的插入孔的外侧的大致中心处。润滑剂驱避剂不施加区域形成在彼此相邻的两个润滑剂驱避应用区域之间。

7. 发明授权

US07371010B2 Hydrodynamic bearing device and compact motor including hydrodynamic bearing device 有权
标题翻译：流体动力轴承装置和紧凑型电动机，包括流体动力轴承装置
公开(公告)号：US07371010B2
公开(公告)日：2008-05-13
申请号：US11305163
申请日：2005-12-19
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C17/026 , F16C33/107 , F16C2370/12 , H02K5/1675
摘要： A shaft is rotatably inserted through a bearing hole of a sleeve, a screw hole for fastening a clamp to the shaft is formed along a direction of an axis from an upper end portion of the shaft, an operating fluid is charged in a gap between an inner peripheral surface of the sleeve and an outer peripheral surface of the shaft, and radial bearing parts constituted of dynamic pressure generating grooves are provided on the inner peripheral surface of the sleeve. As for an inside diameter of the sleeve, an inside diameter in a predetermined range from the opening upper end part is formed to be larger by an expected deformation amount in a diameter direction of the shaft than an inside diameter in a range at a lower end side from the predetermined range. The predetermined range corresponds to a range including a radial bearing part located at the upper end side.
摘要翻译：轴可旋转地插入穿过套筒的轴承孔，从轴的上端部沿着轴线的方向形成用于将夹具紧固到轴的螺孔，工作流体被填充在轴的间隙中套筒的内周面和轴的外周面以及由动压产生槽构成的径向轴承部分设置在套筒的内周面上。对于套筒的内径，从开口上端部的预定范围内的内径形成为比轴的直径方向上的期望变形量大于在下端的范围内的内径侧从预定范围。预定范围对应于包括位于上端侧的径向轴承部的范围。

8. 发明授权

US07241050B2 Hydrodynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US07241050B2
公开(公告)日：2007-07-10
申请号：US11189827
申请日：2005-07-27
申请人： Kaoru Uenosono , Yosei Yoshikawa , Akira Sakata , Takafumi Asada
发明人： Kaoru Uenosono , Yosei Yoshikawa , Akira Sakata , Takafumi Asada
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C33/103 , F16C33/726 , F16C33/745 , F16C2240/40 , F16C2370/12
摘要： A hydrodynamic bearing device in which an introducing minimum clearance for causing capillary phenomenon is formed from the location in the proximity of the opening of a communicating path to the open end of the bearing hole in between the cover and the end face on the open end of the sleeve so that the operating fluid from the communicating path in the sleeve flows into the bearing hole by the capillary phenomenon; a vent hole leading to the outside air is formed on the cover; a fluid storage space for storing the operating fluid is formed on the inside surface of the cover or the end face on the open end of the sleeve to communicate the introducing minimum clearance and the vent hole in the circumferential direction; and the air bubbles separated at the fluid storage space are exhausted outward from the vent hole.
摘要翻译：一种流体动力轴承装置，其中从连接路径的开口附近的位置到在盖和开口端之间的端面之间的轴承孔的开口端的位置处形成用于引起毛细现象的引入最小间隙使得来自套筒中的连通路径的工作流体通过毛细管现象流入轴承孔; 在盖上形成通向外部空气的通气孔; 在套筒的内表面或套筒的开口端的端面上形成用于储存工作流体的流体储存空间，以在周向上连通引入最小间隙和通气孔; 并且在流体存储空间分离的气泡从通气孔向外排出。

9. 发明申请

US20060222276A1 Hydrodynamic bearing device, spindle motor including the same, and recording and reproducing apparatus 失效
公开(公告)号：US20060222276A1
公开(公告)日：2006-10-05
申请号：US11394225
申请日：2006-03-31
申请人： Kaoru Uenosono
发明人： Kaoru Uenosono
IPC分类号： F16C32/06
CPC分类号： H02K7/086 , F16C17/107 , F16C33/1085 , F16C33/745 , F16C2370/12
摘要： A cylindrical sleeve is rotatably fitted over a fixed shaft erected on a base, the sleeve including an outer collar part at an outer periphery of the lower end portion thereof, a slip-out preventing member for preventing the slip-out from the fixed shaft while allowing the sleeve to rotate is provided on the base, the slip-out preventing member including an inner collar part that engages with the outer collar part in the slip-out direction. A hub is provided on the upper end portion of the sleeve, a pair of upper and lower radial bearings formed with a dynamic pressure generating groove are provided on the inner peripheral surface of the sleeve, and a thrust bearing formed with a dynamic pressure generating groove is provided at the lower end face of the sleeve.

10. 发明申请

US20060133704A1 Hydrodynamic bearing device and spindle motor 有权
标题翻译：流体动力轴承装置和主轴电机
公开(公告)号：US20060133704A1
公开(公告)日：2006-06-22
申请号：US11296538
申请日：2005-12-08
申请人： Kaoru Uenosono , Yosei Yoshikawa
发明人： Kaoru Uenosono , Yosei Yoshikawa
IPC分类号： F16C32/06
CPC分类号： F16C17/107 , F16C33/107 , F16C33/1085 , F16C43/02
摘要： The invention provides a hydrodynamic bearing device with a function of circulating the operating fluid by supplying the operating fluid to between the cover and the sleeve by way of a circular communication path, the hydrodynamic bearing device allowing the cover for covering the sleeve to be satisfactorily bonded, preventing the operating fluid from leaking outward, and preventing the adhesive from blocking the opening of the circular communication path; and a spindle motor. An adhesive inflow allowing space for allowing the adhesive from the adhesive setting and bonding part to flow in is formed between the adhesive setting and bonding part for setting the adhesive and bonding the cover and the sleeve, and a space region on the open end side between the cover and the sleeve for circulating and introducing the operating fluid so as to create a space in the cover.
摘要翻译：本发明提供了一种流体动力轴承装置，其具有通过通过圆形连通路径将操作流体供应到盖和套筒之间来循环工作流体的功能，允许盖覆盖套筒的流体动力轴承装置令人满意地结合防止工作流体向外泄漏，防止粘合剂堵塞圆形连通路径的开口; 和主轴电机。在粘合剂凝固和粘合部分之间形成用于使粘合剂从粘合剂凝固和粘合部分流入的粘合剂流入允许空间，用于设置粘合剂并粘合盖和套筒，并且在开口端侧之间的间隔区域所述盖和所述套筒用于循环和引入所述工作流体，以在所述盖中产生空间。

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