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1. 发明授权

US07947635B2 Hydrodynamic bearing device and spindle motor using the same 有权
标题翻译：流体动力轴承装置和主轴电机使用相同
公开(公告)号：US07947635B2
公开(公告)日：2011-05-24
申请号：US12534914
申请日：2009-08-04
申请人： Katsushi Hirata , Takanori Shiraishi , Hideaki Ohno
发明人： Katsushi Hirata , Takanori Shiraishi , Hideaki Ohno
IPC分类号： C10M105/38 , C10M169/04 , F16C32/06
CPC分类号： C10M105/38 , C10M2207/283 , C10N2240/02 , F16C17/107 , F16C33/109 , F16C2370/12
摘要： A hydrodynamic bearing device being low in torque, low in power consumption, high in reliability and best suited for miniaturization and a spindle motor using the same.The hydrodynamic bearing device in accordance with the present invention, dynamic pressure generation grooves being provided on at least one of a shaft or a sleeve, and a lubricant being present in a clearance where the above-mentioned shaft and the above-mentioned sleeve are opposed to each other, is characterized in that the above-mentioned lubricant contains diesters obtained from a divalent alcohol having 4 to 8 carbon atoms and having no alkyl side chain at the β position and one or more kinds of saturated monovalent fatty acids having 9 to 13 carbon atoms.
摘要翻译：一种流体动力轴承装置，扭矩低，功率消耗低，可靠性高，最适合小型化，而使用该液力轴承装置的主轴电机。根据本发明的流体动力轴承装置，在上述轴和上述套筒相对的间隙中存在的动力压力产生槽设置在轴或套筒中的至少一个上，以及润滑剂其特征在于，上述润滑剂含有由具有4〜8个碳原子的二元醇得到的二酯，并且在“bgr”没有烷基侧链; 位置和一种或多种具有9至13个碳原子的饱和一价脂肪酸。

2. 发明申请

US20090290821A1 HYDRODYNAMIC BEARING DEVICE AND SPINDLE MOTOR USING THE SAME 有权
标题翻译：使用相同的水动力轴承装置和主轴电机
公开(公告)号：US20090290821A1
公开(公告)日：2009-11-26
申请号：US12534914
申请日：2009-08-04
申请人： Katsushi HIRATA , Takanori SHIRAISHI , Hideaki OHNO
发明人： Katsushi HIRATA , Takanori SHIRAISHI , Hideaki OHNO
IPC分类号： F16C32/06
CPC分类号： C10M105/38 , C10M2207/283 , C10N2240/02 , F16C17/107 , F16C33/109 , F16C2370/12
摘要： A hydrodynamic bearing device being low in torque, low in power consumption, high in reliability and best suited for miniaturization and a spindle motor using the same.The hydrodynamic bearing device in accordance with the present invention, dynamic pressure generation grooves being provided on at least one of a shaft or a sleeve, and a lubricant being present in a clearance where the above-mentioned shaft and the above-mentioned sleeve are opposed to each other, is characterized in that the above-mentioned lubricant contains diesters obtained from a divalent alcohol having 4 to 8 carbon atoms and having no alkyl side chain at the β position and one or more kinds of saturated monovalent fatty acids having 9 to 13 carbon atoms.
摘要翻译：一种流体动力轴承装置，扭矩低，功率消耗低，可靠性高，最适合小型化，而使用该液力轴承装置的主轴电机。根据本发明的流体动力轴承装置，在上述轴和上述套筒相对的间隙中存在的动力压力产生槽设置在轴或套筒中的至少一个上，以及润滑剂其特征在于，上述润滑剂含有由具有4〜8个碳原子的二元醇得到的二酯，并且在β位没有烷基侧链，还有一种或多种饱和一价脂肪酸具有9〜13个碳原子。

3. 发明申请

US20060171613A1 Hydrodynamic bearing device, and spindle motor and information device using the same 失效
标题翻译：流体动力轴承装置，主轴电机和信息装置使用相同
公开(公告)号：US20060171613A1
公开(公告)日：2006-08-03
申请号：US11360509
申请日：2006-02-24
申请人： Takanori Shiraishi , Katsushi Hirata , Hideaki Ohno
发明人： Takanori Shiraishi , Katsushi Hirata , Hideaki Ohno
IPC分类号： C10M107/34 , F16C33/00
CPC分类号： F16C17/107 , C10M105/18 , C10M169/04 , C10M2207/0406 , C10M2207/289 , C10N2220/022 , C10N2230/02 , C10N2240/204 , F16C17/026 , F16C33/109
摘要： A hydrodynamic bearing device comprises at least one of a rotating component and a fixed component having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the rotating component and the fixed component; wherein the lubricant contains at least one compound selected from the group consisting of aliphatic ethers having one or more ether bonds and a total carbon number of 24 to 39.
摘要翻译：流体动力轴承装置包括具有动压力发生机构的旋转部件和固定部件中的至少一个以及存在于旋转部件和固定部件之间的间隙中的润滑剂; 其中所述润滑剂含有至少一种选自具有一个或多个醚键的脂族醚和总碳数为24至39的化合物。

4. 发明申请

US20060045397A1 Hydrodynamic bearing device, and spindle motor and magnetic disk device using the same 审中-公开
标题翻译：流体动力轴承装置，主轴电机和磁盘装置使用相同
公开(公告)号：US20060045397A1
公开(公告)日：2006-03-02
申请号：US11211687
申请日：2005-08-26
申请人： Katsushi Hirata , Hideaki Ohno , Takanori Shiraishi
发明人： Katsushi Hirata , Hideaki Ohno , Takanori Shiraishi
IPC分类号： F16C32/06 , C10M129/16
CPC分类号： F16C17/107 , C10M105/18 , C10M2207/0406 , C10N2240/204 , F16C33/109 , F16C2370/12
摘要： The invention provides a hydrodynamic bearing device, comprising at least one of a shaft and a sleeve having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the shaft and the sleeve; wherein the lubricant contains at least one compound selected from the group consisting of aliphatic ethers having a total carbon number of 24 to 32 as represented in Formula (1) or Formula (2) R1—O—R2 (1) R3—O-A-O—R4 (2) and wherein R1 represents a C16 or higher alkyl group having at least one side-chain, R2 represents a C4 or higher alkyl group, the carbon number of R1 is greater than the carbon number of R2, R3 and R4 represent C8 or higher alkyl groups, A represents a C5 or higher CnH2n group, and at least one of R3, R4, and A have a branched structure.
摘要翻译：本发明提供了一种流体动力轴承装置，包括具有动压力发生机构的轴和套筒中的至少一个以及存在于轴和套筒之间的间隙中的润滑剂; 其中所述润滑剂含有至少一种选自由式（1）或式（2）表示的总碳数为24至32的脂族醚的化合物<？在线配方说明=“在线公式“end =”lead“？> R＆lt; 1＆lt; 2＆gt;（1）<？in-line-formula description =”In-line Formulas“end =”tail “？> <？in-line-formula description =”In-line Formulas“end =”lead“？> R <3> -line-formula description =“In-line Formulas”end =“tail”？>并且其中R 1表示具有至少一个侧链的C 16或更高级烷基，R 2 表示C4或更高级的烷基，R 1的碳数大于R 2，R 3，O 3的碳原子数 >和R 4代表C 8或更高级烷基，A代表C5或更高级的C n H 2n - ，并且R S 4，R 4，A具有支链结构。

5. 发明申请

US20050201645A1 Hydrodynamic bearing device 失效
标题翻译：流体动力轴承装置
公开(公告)号：US20050201645A1
公开(公告)日：2005-09-15
申请号：US11071212
申请日：2005-03-04
申请人： Takafumi Asada , Tsutomu Hamada , Hideaki Ohno , Yasunori Tokunou
发明人： Takafumi Asada , Tsutomu Hamada , Hideaki Ohno , Yasunori Tokunou
IPC分类号： F16C17/10 , B25G3/02 , F16C33/12 , F16C33/20 , G11B19/20 , H02K5/167 , H02K7/08
CPC分类号： F16C17/107 , F16C33/1025 , F16C2370/12 , Y10S384/902
摘要： A hydrodynamic bearing device capable of inhibiting leakage of a working fluid to an outside of a bearing and preventing reduction in radial bearing rigidity, and capable of keeping a gap between a thrust bearing and a radial bearing favorable and rotating stably. The hydrodynamic bearing device includes a shaft relatively rotatably inserted into a bearing hole of a sleeve, a radial bearing surface having dynamic pressure generating grooves formed on at least one of an outer peripheral surface of the shaft and an inner peripheral surface of the sleeve, and a gap filled with a working fluid between the shaft and the sleeve. The shaft is made of high manganese chrome steel or stainless steel, and the sleeve is entirely made of sintered metal of metal particles including at least 60% by weight of iron or copper. Resin, metal or water glass is impregnated in pores on a surface of the sintered metal and cured. Thereby, leakage of the working fluid to the outside of the bearing from the sleeve can be inhibited, and reduction in the pressure inside the bearing can be prevented.
摘要翻译：一种流体动力轴承装置，其能够抑制工作流体泄漏到轴承的外部，并且防止径向轴承刚性的降低，并且能够使推力轴承和径向轴承之间的间隙保持良好并且稳定地旋转。流体动力轴承装置包括相对可旋转地插入到套筒的轴承孔中的轴，具有形成在轴的外周表面和套筒的内周表面中的至少一个上的动压产生槽的径向支承表面，以及在轴和套筒之间填充有工作流体的间隙。该轴由高锰铬钢或不锈钢制成，并且套筒全部由包含至少60重量％的铁或铜的金属颗粒的烧结金属制成。将树脂，金属或水玻璃浸渍在烧结金属表面上的孔中并固化。由此，可以抑制工作流体从套筒向轴承外侧的泄漏，能够防止轴承内的压力的降低。

6. 发明申请

US20090154851A1 HYDRODYNAMIC BEARING DEVICE 失效
标题翻译：水动力轴承装置
公开(公告)号：US20090154851A1
公开(公告)日：2009-06-18
申请号：US12393542
申请日：2009-02-26
申请人： Tsutomu Hamada , Takafumi Asada , Hideaki Ohno
发明人： Tsutomu Hamada , Takafumi Asada , Hideaki Ohno
IPC分类号： F16C32/06
CPC分类号： F16C33/107 , F16C17/107 , F16C33/103 , F16C2370/12
摘要： A hydrodynamic bearing device is provided for use with a spindle motor. The hydrodynamic bearing device has a sleeve made of a sintered metal that is obtained by sintering a sintering material that is iron, an iron alloy, copper, a copper alloy or a mixture thereof. This sintered metal has independent pores, which do not communicate with each other, by selecting conditions for forming a desired sintered body within a predetermined range. The conditions includes a grain size of powdered metal of a material for the sintered metal, a molding pressure when the molded body is formed, sintering temperature and sintering period in the sintering step.
摘要翻译：提供一种用于主轴电机的流体动力轴承装置。流体动力轴承装置具有通过烧结作为铁，铁合金，铜，铜合金或其混合物的烧结材料而获得的烧结金属制的套筒。该烧结金属通过选择在预定范围内形成所需烧结体的条件，具有不相互连通的独立孔。条件包括烧结金属材料的金属粉末的粒度，成型体的成形压力，烧结温度和烧结时间。

7. 发明授权

US07186028B2 Hydrodynamic bearing device 失效
标题翻译：流体动力轴承装置
公开(公告)号：US07186028B2
公开(公告)日：2007-03-06
申请号：US11071212
申请日：2005-03-04
申请人： Takafumi Asada , Tsutomu Hamada , Hideaki Ohno , Yasunori Tokunou
发明人： Takafumi Asada , Tsutomu Hamada , Hideaki Ohno , Yasunori Tokunou
IPC分类号： F16C17/02
CPC分类号： F16C17/107 , F16C33/1025 , F16C2370/12 , Y10S384/902
摘要： A hydrodynamic bearing device capable of inhibiting leakage of a working fluid to an outside of a bearing and preventing reduction in radial bearing rigidity, and capable of keeping a gap between a thrust bearing and a radial bearing favorable and rotating stably. The hydrodynamic bearing device includes a shaft relatively rotatably inserted into a bearing hole of a sleeve, a radial bearing surface having dynamic pressure generating grooves formed on at least one of an outer peripheral surface of the shaft and an inner peripheral surface of the sleeve, and a gap filled with a working fluid between the shaft and the sleeve. The shaft is made of high manganese chrome steel or stainless steel, and the sleeve is entirely made of sintered metal of metal particles including at least 60% by weight of iron or copper. Resin, metal or water glass is impregnated in pores on a surface of the sintered metal and cured. Thereby, leakage of the working fluid to the outside of the bearing from the sleeve can be inhibited, and reduction in the pressure inside the bearing can be prevented.
摘要翻译：一种流体动力轴承装置，其能够抑制工作流体泄漏到轴承的外部，并且防止径向轴承刚性的降低，并且能够使推力轴承和径向轴承之间的间隙保持良好并且稳定地旋转。流体动力轴承装置包括相对可旋转地插入到套筒的轴承孔中的轴，具有形成在轴的外周表面和套筒的内周表面中的至少一个上的动压产生槽的径向支承表面，以及在轴和套筒之间填充有工作流体的间隙。该轴由高锰铬钢或不锈钢制成，并且套筒全部由包含至少60重量％的铁或铜的金属颗粒的烧结金属制成。将树脂，金属或水玻璃浸渍在烧结金属表面上的孔中并固化。由此，可以抑制工作流体从套筒向轴承外侧的泄漏，能够防止轴承内的压力的降低。

8. 发明申请

US20060252658A1 Lubricant for fluid dynamic bearing, spindle motor equipped therewith and magnetic disk unit 有权
标题翻译：用于流体动力轴承的润滑剂，配备的主轴电机和磁盘单元
公开(公告)号：US20060252658A1
公开(公告)日：2006-11-09
申请号：US11400197
申请日：2006-04-10
申请人： Takanori Shiraishi , Hideaki Ohno , Katsushi Hirata
发明人： Takanori Shiraishi , Hideaki Ohno , Katsushi Hirata
IPC分类号： C10M141/12 , F16C32/06
CPC分类号： C10M141/06 , C10M169/04 , C10M2203/065 , C10M2205/0206 , C10M2207/0406 , C10M2207/16 , C10M2207/2805 , C10M2215/04 , C10M2215/224 , C10N2220/02 , C10N2230/06 , C10N2230/74 , C10N2240/02 , C10N2240/204
摘要： A lubricant, comprising: a base oil as primary lubricant component, and a naphthenate salt as additive (A), and an alkylimidazole compound as additive (B), added to the base oil, preferably further comprising an aliphatic amine compound as additive (C), a fluid dynamic bearing with the lubricant filled therein, a spindle motor with the fluid dynamic bearing installed therein, and a magnetic disk device with the spindle motor installed therein.
摘要翻译：一种润滑剂，其包含：作为主要润滑剂成分的基础油和作为添加剂（A）的环烷酸盐和作为添加剂的烷基咪唑化合物（B），添加到所述基础油中，优选还含有脂肪族胺化合物作为添加剂（C ），其中填充润滑剂的流体动力轴承，安装有流体动力轴承的主轴电机以及安装有主轴电机的磁盘装置。

9. 发明申请

US20060120642A1 Hydrodynamic bearing device, and spindle motor and information device using the same 有权
标题翻译：流体动力轴承装置，主轴电机和信息装置使用相同
公开(公告)号：US20060120642A1
公开(公告)日：2006-06-08
申请号：US11294525
申请日：2005-12-06
申请人： Katsushi Hirata , Hideaki Ohno , Takanori Shiraishi
发明人： Katsushi Hirata , Hideaki Ohno , Takanori Shiraishi
IPC分类号： F16C32/00
CPC分类号： F16C33/109 , C10M105/38 , C10M2207/2835 , C10N2240/02 , F16C17/107
摘要： The invention provides a hydrodynamic bearing device, comprising at least one of a shaft structure and a sleeve having a dynamic pressure-generating mechanism, and a lubricant present in a gap between the shaft structure and the sleeve; wherein the lubricant contains a diester with a total carbon number of 20-28 obtainable by a divalent alcohol that has at least one ether bond, and one or more types of C6 to C10 saturated monovalent fatty acid.
摘要翻译：本发明提供了一种流体动力轴承装置，其包括具有动压力发生机构的轴结构和套筒中的至少一个以及存在于轴结构和套筒之间的间隙中的润滑剂; 其中所述润滑剂含有通过具有至少一个醚键的二价醇获得的总碳数为20-28的二酯和一种或多种C6至C10饱和一价脂肪酸。

10. 发明申请

US20110143973A1 GREASE COMPOSITION FOR MOUNTER, GUIDING DEVICE CONTAINING THE SAME, AND MOUNTER 审中-公开
标题翻译：用于安装的润滑脂组合物，包含其的引导装置和安装
公开(公告)号：US20110143973A1
公开(公告)日：2011-06-16
申请号：US13057064
申请日：2009-07-10
申请人： Hideaki Ohno , Yukitoshi Fujinami
发明人： Hideaki Ohno , Yukitoshi Fujinami
IPC分类号： C10M169/02
CPC分类号： C10M171/00 , C10M169/02 , C10M2205/0285 , C10M2207/1276 , C10M2207/1285 , C10M2207/1426 , C10M2209/084 , C10M2215/064 , C10M2215/1026 , C10M2219/044 , C10M2219/0445 , C10M2219/068 , C10N2220/021 , C10N2220/022 , C10N2230/68 , C10N2240/02 , C10N2240/06 , C10N2250/10 , F16C29/06 , F16C33/6633 , C10N2210/01 , C10N2210/02
摘要： The present invention has the object of providing a grease composition for a mounter that exhibits excellent stability to mechanical shearing, and excellent mixing stability, a guiding device for a mounter that includes the grease composition, and a mounter that mounts the guiding device. A grease composition for a mounter includes a base oil and a thickening agent, has a worked penetration of 200-400, a dropping point of greater than or equal to 220° C., and a worked penetration change during a roll stability test of 0 to less than or equal to +100.
摘要翻译：本发明的目的是提供一种对机械剪切具有优异的稳定性和优异的混合稳定性的安装机用润滑脂组合物，包括该润滑脂组合物的安装机的引导装置以及安装引导装置的安装机。用于贴片机的润滑脂组合物包括基础油和增稠剂，工作渗透率为200-400，滴点大于或等于220℃，辊稳定性试验中的加工渗透变化为0 小于或等于+100。

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