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1. 发明授权

US08675304B2 Disk drive spindle motor with hole volume and component density relationship 有权
标题翻译：磁盘驱动主轴电机具有孔体积和组件密度的关系
公开(公告)号：US08675304B2
公开(公告)日：2014-03-18
申请号：US13353557
申请日：2012-01-19
申请人： Takehito Tamaoka , Kazushi Miura , Mitsuhiro Takemoto
发明人： Takehito Tamaoka , Kazushi Miura , Mitsuhiro Takemoto
IPC分类号： G11B19/20 , G11B25/04 , H02K5/04 , H02K5/16 , H02K5/24 , F16C17/10 , F16C33/10
CPC分类号： G11B19/2036 , F16C17/107 , F16C33/1085 , F16C41/008 , F16C2370/12 , H02K5/1677
摘要： A motor includes a stationary portion and a rotating portion. The rotating portion includes a sleeve portion including one communicating hole arranged to extend completely there through from an upper surface to a lower surface thereof, and a cover portion including a hole portion. The axial extension range of the hole portion is arranged to overlap with the axial extension range of the communicating hole in a radial direction. A center of the hole portion is arranged on a plane including a central axis and a center of the communicating hole. The communicating hole and the hole portion are arranged on opposite sides of the central axis. The following inequality is satisfied: V2
摘要翻译：电动机包括固定部分和旋转部分。旋转部分包括套筒部分，该套筒部分包括一个连通孔，其布置成从上表面到下表面完全延伸，以及包括孔部分的盖部分。孔部的轴向延伸范围与径向的连通孔的轴向延伸范围重叠。孔部的中心配置在包括连通孔的中心轴和中心的平面上。连通孔和孔部布置在中心轴的相对侧。满足以下不等式：V2 <（sigma1 / sigma2）·V1，其中sigma1是套筒部分的密度，V1是连通孔的体积，sigma2是盖部分的密度，V2是体积孔部。

2. 发明授权

US08567067B2 Method of manufacturing fluid dynamic bearing mechanism, motor, and storage disk drive 有权
标题翻译：制造流体动力轴承机构，电机和存储盘驱动器的方法
公开(公告)号：US08567067B2
公开(公告)日：2013-10-29
申请号：US13353554
申请日：2012-01-19
申请人： Katsuki Yamaguchi , Shigeki Horiki , Yoshitsugu Hideshima , Akio Tatsumi , Akinobu Sumiji , Takehito Tamaoka , Kazushi Miura , Mitsuhiro Takemoto
发明人： Katsuki Yamaguchi , Shigeki Horiki , Yoshitsugu Hideshima , Akio Tatsumi , Akinobu Sumiji , Takehito Tamaoka , Kazushi Miura , Mitsuhiro Takemoto
IPC分类号： B21D53/10 , F16C32/06 , G11B17/02 , H02K7/08
CPC分类号： H02K7/086 , F16C17/107 , F16C33/743 , F16C2370/12 , G11B19/2036 , Y10T29/49639 , Y10T29/49696 , Y10T29/49702
摘要： A method of manufacturing a bearing mechanism of a motor includes steps a)-e). In step a), a bearing assembly is assembled. In step b), an upper seal gap between an upper thrust portion and an upper hub annular portion is arranged to face downward to increase the width of a gap between an outer tubular portion and a flange portion, or a lower seal gap between the outer tubular portion and a lower hub annular portion is arranged to face downward to increase the width of a gap between the upper thrust portion and the flange portion. In step c), pressure in all gaps is reduced. In step d), lubricating oil is injected into the upper or lower seal gap which faces upward, and a predetermined time or longer is allowed to pass. In step e), pressure is returned to atmospheric pressure.
摘要翻译：制造电动机的轴承机构的方法包括步骤a）-e）。在步骤a）中，组装轴承组件。在步骤b）中，上推力部分和上轮毂环形部分之间的上密封间隙布置成面向下以增加外管部分和凸缘部分之间的间隙的宽度，或者增加外部管状部分和凸缘部分之间的下部密封间隙管状部分和下轮毂环形部分布置成面向下以增加上止推部分和凸缘部分之间的间隙的宽度。在步骤c）中，所有间隙中的压力降低。在步骤d）中，向面向上方的上，下密封间隙注入润滑油，经过规定时间以上。在步骤e）中，压力返回到大气压。

3. 发明申请

US20120250183A1 MOTOR AND STORAGE DISK DRIVE 有权
标题翻译：电机和存储盘驱动器
公开(公告)号：US20120250183A1
公开(公告)日：2012-10-04
申请号：US13353557
申请日：2012-01-19
申请人： Takehito TAMAOKA , Kazushi MIURA , Mitsuhiro TAKEMOTO
发明人： Takehito TAMAOKA , Kazushi MIURA , Mitsuhiro TAKEMOTO
IPC分类号： H02K5/24 , G11B17/02
CPC分类号： G11B19/2036 , F16C17/107 , F16C33/1085 , F16C41/008 , F16C2370/12 , H02K5/1677
摘要： A motor includes a stationary portion and a rotating portion. The rotating portion includes a sleeve portion including one communicating hole arranged to extend completely there through from an upper surface to a lower surface thereof, and a cover portion including a hole portion. The axial extension range of the hole portion is arranged to overlap with the axial extension range of the communicating hole in a radial direction. A center of the hole portion is arranged on a plane including a central axis and a center of the communicating hole. The communicating hole and the hole portion are arranged on opposite sides of the central axis. The following inequality is satisfied: V2
摘要翻译：电动机包括固定部分和旋转部分。旋转部分包括套筒部分，该套筒部分包括一个连通孔，其布置成从上表面到下表面完全延伸，以及包括孔部分的盖部分。孔部的轴向延伸范围与径向的连通孔的轴向延伸范围重叠。孔部的中心配置在包括连通孔的中心轴和中心的平面上。连通孔和孔部布置在中心轴的相对侧。满足以下不等式：V2 <（＆sgr; 1 /＆sgr; 2）·V1，其中＆sgr; 1是套筒部分的密度，V1是连通孔的体积，2是盖的密度部分，V2是孔部的体积。

4. 发明申请

US20060082247A1 Rotor Hub, Spindle Motor, and Recording Disk Driving Apparatus 失效
标题翻译：转子毂，主轴电机和记录盘驱动装置
公开(公告)号：US20060082247A1
公开(公告)日：2006-04-20
申请号：US11163479
申请日：2005-10-20
申请人： Takehito Tamaoka , Kazushi Miura
发明人： Takehito Tamaoka , Kazushi Miura
IPC分类号： H02K11/00 , H02K5/10 , H02K1/22
CPC分类号： H02K11/01 , H02K7/14 , H02K21/16
摘要： A spindle motor according to an embodiment of the invention includes a rotor hub formed of a ferromagnetic material and a rotor magnet held by the rotor hub. The rotor hub has a flange having a shield surface that faces an upper end surface of the rotor magnet via a clearance in the axial direction and formed of a ferromagnetic material. On the outside in the radial direction of an outer peripheral surface of the rotor magnet in the flange, a rim projected downward from the shield surface of the flange is formed.
摘要翻译：根据本发明的实施例的主轴电机包括由铁磁材料形成的转子毂和由转子毂保持的转子磁体。转子毂具有一个凸缘，该凸缘具有一个屏蔽表面，该屏蔽表面经由轴向上的间隙面对转子磁体的上端表面并由铁磁材料形成。在凸缘中的转子磁体的外周面的径向外侧形成有从凸缘的屏蔽面向下突出的边缘。

5. 发明授权

US06837622B2 Dynamic pressure bearing apparatus 失效
标题翻译：动压轴承装置
公开(公告)号：US06837622B2
公开(公告)日：2005-01-04
申请号：US10439964
申请日：2003-05-15
申请人： Masato Gomyo , Shingo Suginobu , Kazushi Miura
发明人： Masato Gomyo , Shingo Suginobu , Kazushi Miura
IPC分类号： F16C17/10 , F16C33/02 , F16C33/10 , F16C33/72 , F16C35/02 , F16C41/00 , H02K5/15 , H02K5/16 , H02K7/08 , F16C17/02
CPC分类号： F16C33/723 , F16C17/107 , F16C43/02 , F16C2370/12 , H02K5/1675
摘要： A dynamic pressure bearing apparatus provides a configuration in which the label on which desired data is visibly printed is arranged in a manner that the label does not overlap with a cover plate at least in the area where the label faces the rotary shaft in the shaft direction where the cover plate covers the opening of the bearing sleeve. Deformation of the cover plate that may occur during attachment of the label onto the cover plate is thus prevented. The position of the cover plate is leveled with the position of the label, which makes height reduction of the bearing apparatus possible. Subsequently, even when a relatively thick label is attached onto the frame, the dynamic pressure bearing apparatus can still be made thinner without adversely affecting performance or life thereof.

6. 发明授权

US06793394B2 Hydrodynamic bearing device 有权
标题翻译：流体动力轴承装置
公开(公告)号：US06793394B2
公开(公告)日：2004-09-21
申请号：US10197401
申请日：2002-07-18
申请人： Masato Gomyo , Kazushi Miura
发明人： Masato Gomyo , Kazushi Miura
IPC分类号： F16C1710
CPC分类号： F16C33/107 , F16C17/045 , F16C17/107 , H02K5/1675
摘要： A pair of thrust hydrodynamic bearing portions are made to communicate with each other to form fluid circulating passages for equalizing a pressure imbalance between both thrust hydrodynamic bearing portions. Even in a case where a pressure imbalance has occurred in a lubricating fluid inside the thrust hydrodynamic bearing portions due to such a cause as the deformation of a thrust plate, the lubricating fluid is allowed to move between the pair of upper and lower thrust hydrodynamic bearing portions through the fluid circulating passages so as to overcome the pressure imbalance, thereby making it possible to stably obtain the amount of floatation in the thrust hydrodynamic bearing portions.
摘要翻译：一对推力流体动力轴承部分彼此连通以形成用于均衡两个推力流体动力轴承部分之间的压力不平衡的流体循环通道。即使在由于推力板的变形引起的推力流体动力轴承部内部的润滑流体中产生压力不平衡的情况下，允许润滑流体在一对上下推力流体动力轴承部分通过流体循环通道，以克服压力不平衡，从而可以稳定地获得推力流体动力轴承部分中的浮起量。

7. 发明授权

US08416524B2 Spindle motor having connecting mechanism connecting lead wire and circuit board, and storage disk drive having the same 有权
标题翻译：主轴电动机具有连接引线和电路板的连接机构，以及具有该导线的存储盘驱动器
公开(公告)号：US08416524B2
公开(公告)日：2013-04-09
申请号：US13029143
申请日：2011-02-17
申请人： Masayoshi Saichi , Kazuhiko Fukushima , Hironori Ando , Kazushi Miura , Katsuya Takahashi , Takehito Tamaoka , Jonathan M. Garbarino , Robert N. Lion
发明人： Masayoshi Saichi , Kazuhiko Fukushima , Hironori Ando , Kazushi Miura , Katsuya Takahashi , Takehito Tamaoka , Jonathan M. Garbarino , Robert N. Lion
IPC分类号： G11B19/20
CPC分类号： G11B19/2009 , H02K3/521 , H02K5/225 , H02K2203/03
摘要： A spindle motor includes a base portion, a rotor hub, a stator, and a circuit board. The base portion preferably includes a through hole and is arranged to spread out radially around a central axis. The rotor hub is arranged above the base portion to rotate about the central axis. The stator is arranged above the base portion, and includes coils each including at least one lead wire. The circuit board is arranged radially outward of the through hole, and arranged on a lower surface of the base portion. The base portion includes a communicating groove arranged to join the through hole and the circuit board to each other. The at least one lead wire of the coils is arranged to pass inside the through hole and the communicating groove to be electrically connected to the circuit board. The through hole is sealed with a sealant.
摘要翻译：主轴电动机包括基部，转子毂，定子和电路板。基部优选地包括通孔并布置成围绕中心轴径向扩展。转子毂布置在基部上方以围绕中心轴线旋转。定子布置在基部的上方，并且包括各自包括至少一根引线的线圈。电路板布置在通孔的径向外侧，并且布置在基部的下表面上。基部包括连通槽，该连通槽将通孔和电路板彼此连接。线圈的至少一根引线布置成通过通孔和连通槽内的电连接到电路板。通孔用密封剂密封。

8. 发明授权

US08385017B2 Spindle motor including fluid bearing and storage disk drive including the same 有权
标题翻译：主轴电动机包括流体轴承和包括其的存储盘驱动器
公开(公告)号：US08385017B2
公开(公告)日：2013-02-26
申请号：US13198794
申请日：2011-08-05
申请人： Junya Mizukami , Takayuki Oe , Yoichi Sekii , Naoki Sabashi , Takehito Tamaoka , Takashi Yamamoto , Shigeki Horiki , Kazushi Miura , Mitsuhiro Takemoto
发明人： Junya Mizukami , Takayuki Oe , Yoichi Sekii , Naoki Sabashi , Takehito Tamaoka , Takashi Yamamoto , Shigeki Horiki , Kazushi Miura , Mitsuhiro Takemoto
IPC分类号： G11B17/02 , H02K7/08
CPC分类号： G11B25/043 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B19/2036 , H02K5/1675
摘要： In a motor, an annular radially extending gap is defined between an outer annular surface and a lower surface of an annular cover portion. The radially extending gap has an axial width smaller than a maximum width of an upper seal portion defined between an outer circumferential surface of an upper thrust portion and an inner circumferential surface of a tubular portion. An annular axially extending gap is defined between an inner cylindrical surface and a radially inner edge of the annular cover portion. The axially extending gap has a radial width smaller than the maximum width of the upper seal portion.
摘要翻译：在电动机中，环形径向延伸的间隙限定在环形盖部分的外环形表面和下表面之间。径向延伸间隙的轴向宽度小于限定在上推力部分的外圆周表面和管状部分的内圆周表面之间的上密封部分的最大宽度。环形轴向延伸的间隙限定在环形盖部分的内圆柱形表面和径向内边缘之间。轴向延伸间隙的径向宽度小于上密封部分的最大宽度。

9. 发明申请

US20120327534A1 METHOD OF MANUFACTURING FLUID DYNAMIC BEARING MECHANISM, MOTOR, AND STORAGE DISK DRIVE 有权
标题翻译：流体动力轴承机构的制造方法，电动机和存储盘驱动
公开(公告)号：US20120327534A1
公开(公告)日：2012-12-27
申请号：US13353554
申请日：2012-01-19
申请人： Katsuki YAMAGUCHI , Shigeki HORIKI , Yoshitsugu HIDESHIMA , Akio TATSUMI , Akinobu SUMIJI , Takehito TAMAOKA , Kazushi MIURA , Mitsuhiro TAKEMOTO
发明人： Katsuki YAMAGUCHI , Shigeki HORIKI , Yoshitsugu HIDESHIMA , Akio TATSUMI , Akinobu SUMIJI , Takehito TAMAOKA , Kazushi MIURA , Mitsuhiro TAKEMOTO
IPC分类号： G11B17/02 , H02K7/08 , B23P17/04
CPC分类号： H02K7/086 , F16C17/107 , F16C33/743 , F16C2370/12 , G11B19/2036 , Y10T29/49639 , Y10T29/49696 , Y10T29/49702
摘要： A method of manufacturing a bearing mechanism of a motor includes steps a)-e). In step a), a bearing assembly is assembled. In step b), an upper seal gap between an upper thrust portion and an upper hub annular portion is arranged to face downward to increase the width of a gap between an outer tubular portion and a flange portion, or a lower seal gap between the outer tubular portion and a lower hub annular portion is arranged to face downward to increase the width of a gap between the upper thrust portion and the flange portion. In step c), pressure in all gaps is reduced. In step d), lubricating oil is injected into the upper or lower seal gap which faces upward, and a predetermined time or longer is allowed to pass. In step e), pressure is returned to atmospheric pressure.
摘要翻译：制造电动机的轴承机构的方法包括步骤a）-e）。在步骤a）中，组装轴承组件。在步骤b）中，上推力部分和上轮毂环形部分之间的上密封间隙布置成面向下以增加外管部分和凸缘部分之间的间隙的宽度，或者增加外部管状部分和凸缘部分之间的下部密封间隙管状部分和下轮毂环形部分布置成面向下以增加上止推部分和凸缘部分之间的间隙的宽度。在步骤c）中，所有间隙中的压力降低。在步骤d）中，向面向上方的上，下密封间隙注入润滑油，经过规定时间以上。在步骤e）中，压力返回到大气压。

10. 发明申请

US20120033329A1 SPINDLE MOTOR AND STORAGE DISK DRIVE 有权
标题翻译：主轴电机和存储盘驱动器
公开(公告)号：US20120033329A1
公开(公告)日：2012-02-09
申请号：US13198794
申请日：2011-08-05
申请人： Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Takehito TAMAOKA , Takashi YAMAMOTO , Shigeki HORIKI , Kazushi MIURA , Mitsuhiro TAKEMOTO
发明人： Junya MIZUKAMI , Takayuki OE , Yoichi SEKII , Naoki SABASHI , Takehito TAMAOKA , Takashi YAMAMOTO , Shigeki HORIKI , Kazushi MIURA , Mitsuhiro TAKEMOTO
IPC分类号： G11B17/028 , H02K7/08
CPC分类号： G11B25/043 , F16C17/107 , F16C33/745 , F16C2370/12 , G11B19/2036 , H02K5/1675
摘要： In a motor, an annular radially extending gap is defined between an outer annular surface and a lower surface of an annular cover portion. The radially extending gap has an axial width smaller than a maximum width of an upper seal portion defined between an outer circumferential surface of an upper thrust portion and an inner circumferential surface of a tubular portion. An annular axially extending gap is defined between an inner cylindrical surface and a radially inner edge of the annular cover portion. The axially extending gap has a radial width smaller than the maximum width of the upper seal portion.
摘要翻译：在电动机中，环形径向延伸的间隙限定在环形盖部分的外环形表面和下表面之间。径向延伸间隙的轴向宽度小于限定在上推力部分的外圆周表面和管状部分的内圆周表面之间的上密封部分的最大宽度。环形轴向延伸的间隙限定在环形盖部分的内圆柱表面和径向内边缘之间。轴向延伸间隙的径向宽度小于上密封部分的最大宽度。

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