专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

61. 发明申请

US20150042258A1 CONTROL DEVICE FOR STEPPING MOTOR AND CONTROL METHOD FOR STEPPING MOTOR 有权
标题翻译：用于步进电机的控制装置和用于步进电动机的控制方法
公开(公告)号：US20150042258A1
公开(公告)日：2015-02-12
申请号：US14301579
申请日：2014-06-11
申请人： MINEBEA CO., LTD.
发明人： Kazuo TAKADA , Takayuki MATSUI , Haruka MIYAJI
IPC分类号： H02P8/24 , H02P8/10 , H02P8/38
CPC分类号： H02P8/24 , H02P8/10 , H02P8/28 , H02P8/38
摘要： There is provided a control device for a stepping motor, configured to apply an excitation current to multiple coils to rotate a rotor. The control device includes a drive unit configured to apply a drive voltage to the coils, and a control unit configured to control the drive voltage applied by the drive unit, wherein the control unit includes a stop control unit configured to perform, during a hold period of a stop period of the stepping motor, a stop control which gradually decreases a magnitude of the excitation current flowing in the coils such that the rotor moves to a predetermined stop position, and wherein the stop control unit is configured to perform the stop control such that a variation amount of the excitation current per unit time becomes a predetermined threshold value for the stop period or less.
摘要翻译：提供了一种用于步进电动机的控制装置，其被配置为向多个线圈施加激励电流以使转子旋转。所述控制装置包括被配置为向所述线圈施加驱动电压的驱动单元和被配置为控制由所述驱动单元施加的驱动电压的控制单元，其中所述控制单元包括停止控制单元，所述停止控制单元被配置为在保持期间步骤电动机的停止期间，使所述线圈中流过的励磁电流的大小逐渐减小以使得所述转子移动到规定的停止位置的停止控制，所述停止控制部被配置为进行所述停止控制，每单位时间的激励电流的变化量成为停止期间以下的预定阈值。

62. 发明申请

US20150030275A1 GEL LUBRICANT, ROLLING BEARING, PIVOT ASSEMBLY BEARING, AND HARD DISK DRIVE 有权
标题翻译：凝胶润滑剂，滚动轴承，PIVOT装配轴承和硬盘驱动器
公开(公告)号：US20150030275A1
公开(公告)日：2015-01-29
申请号：US14323573
申请日：2014-07-03
申请人： MINEBEA CO., LTD.
发明人： Motojiro TSUNA
IPC分类号： C10M111/04 , F16C33/66
CPC分类号： F16C33/6651 , C10M169/041 , C10M2205/022 , C10M2205/0285 , C10M2205/04 , C10M2207/2805 , C10M2207/2835 , C10M2207/288 , C10M2215/064 , C10M2215/223 , C10M2223/00 , C10M2223/04 , C10N2220/022 , C10N2230/70 , C10N2240/02 , C10N2240/204 , C10N2250/10 , F16C33/6692 , C10M2205/024
摘要： There is provided a gel lubricant including: a base oil containing an ester synthetic oil and a synthetic hydrocarbon oil in which the mass ratio (X:Y) of the ester synthetic oil (X) to the synthetic hydrocarbon oil (Y) is in the range of 35:65 to 75:25; and a gelatinizer which contains two kinds of styrene block copolymers and is included in the gel lubricant in an amount of 1.5% by mass to 10% by mass.
摘要翻译：提供了一种凝胶润滑剂，其包含：含有酯合成油和合成烃油的基油，其中酯合成油（X）与合成烃油（Y）的质量比（X:Y）为范围为35:65至75:25; 和含有两种苯乙烯嵌段共聚物并且以1.5质量％至10质量％的量包含在凝胶润滑剂中的胶凝剂。

63. 发明申请

US20150015109A1 SPINDLE MOTOR AND HARD DISK DRIVE 审中-公开
标题翻译：主轴电机和硬盘驱动器
公开(公告)号：US20150015109A1
公开(公告)日：2015-01-15
申请号：US14327095
申请日：2014-07-09
申请人： MINEBEA CO., LTD.
发明人： Akihiko SUZUKI
IPC分类号： C23C18/18 , C23C18/34 , C23C18/36 , H02K1/06 , C23C18/16
CPC分类号： C23C18/1848 , C23C18/1844 , C23C18/34 , H02K1/06 , H02K21/22
摘要： A spindle motor is provided in which the scattering of contaminating particles are prevented in a stainless steel part used therein. so that a hard disk drive can be prevented from being damaged due to collision between the particles adhered on a magnetic disk surface and a magnetic head. The spindle motor has a fixed portion and a rotating portion in which at least a part of one of the fixed portion and the rotating portion is made of stainless steel, and a metallic film is directly formed on the surface of the stainless steel by electroless nickel plating.
摘要翻译：提供了一种主轴电动机，其中在其中使用的不锈钢部件中防止污染颗粒的散射。从而可以防止由于附着在磁盘表面上的颗粒与磁头之间的碰撞而损坏硬盘驱动器。主轴电机具有固定部分和旋转部分，其中固定部分和旋转部分中的至少一部分由不锈钢制成，并且金属膜通过无电镀镍直接形成在不锈钢的表面上电镀。

64. 发明授权

US08931943B2 Spread illuminating apparatus 有权
标题翻译：展示照明装置
公开(公告)号：US08931943B2
公开(公告)日：2015-01-13
申请号：US13716846
申请日：2012-12-17
申请人： Minebea Co., Ltd.
发明人： Toru Kunimochi
IPC分类号： F21V7/04 , F21V8/00 , G02B6/42
CPC分类号： G02B6/0011 , G02B6/0018 , G02B6/0021 , G02B6/0031 , G02B6/0083
摘要： A spread illuminating apparatus includes a point light source with a light-emitting surface, a circuit board with a mounting surface on which the point light source is mounted, and a light guide plate with an incident light surface and an emitting surface. The circuit board is arranged as that at least a partial portion of the circuit board extends beyond an area where the point light source is mounted so as to be superposed on the light guide plate, a light-reflecting member is arranged on the mounting surface, and a region of the mounting surface in which the light-reflecting member is arranged includes a first region that extends forward from a position corresponding to the center of the light-emitting surface of the point light source.
摘要翻译：扩展照明装置包括具有发光面的点光源，安装有点光源的安装面的电路基板和具有入射光面和发光面的导光板。电路板被布置成使得电路板的至少一部分部分延伸超过安装点光源的区域以重叠在导光板上，在安装表面上布置有光反射部件，并且所述安装面的配置有所述光反射部件的区域包括从与所述点光源的所述发光面的中心对应的位置向前延伸的第一区域。

65. 发明授权

US08920033B2 Fluid dynamic bearing having pressure-generating surface patterns 有权
标题翻译：具有压力产生表面图案的流体动力轴承
公开(公告)号：US08920033B2
公开(公告)日：2014-12-30
申请号：US14049759
申请日：2013-10-09
申请人： Minebea Co., Ltd.
发明人： Martin Bauer
IPC分类号： F16C32/06 , F16C17/10 , F16C33/10
CPC分类号： F16C17/107 , F16C32/0659 , F16C33/107 , F16C33/1085 , F16C2370/12
摘要： A fluid dynamic bearing system having pressure-generating surface patterns that comprises at least two bearing parts that are rotatable with respect to one another and form a bearing gap filled with bearing fluid between associated bearing surfaces. The surface patterns are disposed on at least one bearing surface that is defined by a first rim and a second rim, hydrodynamic pressure being built up within the bearing gap on rotation of the bearing parts with respect to one another. At least parts of the surface patterns extend from the first rim to the second rim of the bearing surface.
摘要翻译：一种流体动力轴承系统，其具有产生压力的表面图案，其包括至少两个相对于彼此可旋转的轴承部分，并且在相关联的轴承表面之间形成填充有轴承流体的轴承间隙。表面图案设置在由第一边缘和第二边缘限定的至少一个支承表面上，当轴承部件相对于彼此旋转时，流体动力学压力在轴承间隙内积累。至少部分表面图案从支承表面的第一边缘延伸到第二边缘。

66. 发明授权

US08896257B2 Motor control device and out-of-step detecting method of stepping motor 有权
标题翻译：电机控制装置和步进电机失步检测方法
公开(公告)号：US08896257B2
公开(公告)日：2014-11-25
申请号：US13771500
申请日：2013-02-20
申请人： Minebea Co., Ltd.
发明人： Kazuo Takada , Takayuki Matsui , Scott Jacobs
IPC分类号： H02P8/00 , G05B19/40 , H02P8/38
CPC分类号： H02P8/38
摘要： There is provided a motor control device configured to control an energization state of a coil of each phase for driving a stepping motor having multiple phase coils. The motor control device includes a measuring unit configured to measure a back electromotive voltage induced at a coil of a phase for which energization is stopped, among the multiple phase coils, an acquiring unit configured to acquire temperature information on temperature of the stepping motor or on temperature corresponding to the temperature of the stepping motor, and a detecting unit configured to detect whether the stepping motor is out of step or not based on a result obtained by the measuring unit and the temperature information acquired by the acquiring unit.
摘要翻译：提供了一种电动机控制装置，其被配置为控制用于驱动具有多个相线圈的步进电动机的每相线圈的通电状态。所述电动机控制装置包括：测量单元，被配置为测量在所述多个相位线圈中在停止通电的相位的线圈处感应的反电动势电压;获取单元，被配置为获取关于所述步进电动机的温度的温度信息，温度对应于步进电机的温度，以及检测单元，其被配置为基于由测量单元获得的结果和由获取单元获取的温度信息来检测步进电机是否失步。

67. 发明申请

US20140340851A1 DISPLAY DEVICE 有权
标题翻译：显示设备
公开(公告)号：US20140340851A1
公开(公告)日：2014-11-20
申请号：US14165828
申请日：2014-01-28
申请人： MINEBEA CO., LTD.
发明人： Yasukazu YOMOGITA
IPC分类号： H05K5/02 , H05K5/00
CPC分类号： H05K5/0217 , B60K35/00 , B60K2350/405 , B60R11/0235 , B60R2011/0094 , G06F1/1601 , G06F1/1616 , G06F1/1624 , H05K5/0017
摘要： A display device is provided and includes: a display portion; a storage member configured to house the display portion and including an opening through which the display portion passes; a plurality of cover members configured to cover the opening and to travel from the opening to a region of the storage member adjacent to the opening so as to be folded up and overlapped with each other at the region; and travel control means configured to cause the plurality of cover members to transfer to a first condition in which the opening is closed by the plurality of cover members and also to a second condition in which the plurality of cover members are folded up and overlapped with each other.
摘要翻译：提供一种显示装置，包括：显示部; 存储构件，其构造成容纳所述显示部并且包括所述显示部通过的开口; 多个盖构件，其构造成覆盖所述开口并且从所述开口行进到所述存储构件的与所述开口相邻的区域，以便在所述区域处彼此折叠和重叠; 以及行驶控制单元，其被配置为使所述多个盖构件转移到由所述多个盖构件封闭所述开口的第一状态，并且还包括所述多个盖构件折叠并与每个盖构件重叠的第二状态其他。

68. 发明申请

US20140139153A1 DRIVING CONTROL DEVICE OF MOTOR 有权
标题翻译：电动机驱动控制装置
公开(公告)号：US20140139153A1
公开(公告)日：2014-05-22
申请号：US14023884
申请日：2013-09-11
申请人： Minebea Co., Ltd.
发明人： Masato AOKI
IPC分类号： H02P6/14
CPC分类号： H02P6/145 , H02P6/153 , H02P6/22
摘要： A driving control device of a motor includes: a motor driving unit, which drives a motor in response to a driving control signal; and a control unit, which determines an energization pattern applied to an armature coil based on a detected rotational position of the rotor, wherein the control unit starts rotation control by a preset first energization pattern when activating of the motor, wherein when a predetermined time period has elapsed, the control unit adjusts energizing timing to be a timing, at which a short of each phase is not caused at switching of the energization pattern, and then outputs the driving control signal to the motor driving unit so that the rotation control is switched to rotation control of a second energization pattern, which has a predetermined advanced angle amount with respect to the first energization pattern.
摘要翻译：电动机的驱动控制装置包括：电动机驱动单元，其响应于驱动控制信号驱动电动机; 以及控制单元，其基于所检测到的所述转子的旋转位置来确定施加到电枢线圈的通电模式，其中，所述控制单元在启动所述电动机时开始通过预设的第一通电图案的旋转控制，其中当预定时间段控制单元将通电时刻调整为在通电模式切换时不产生每相短路的定时，然后将驱动控制信号输出到马达驱动单元，使得旋转控制切换对相对于第一通电图案具有预定提前角度量的第二通电图案的旋转控制。

69. 发明授权

US08729813B2 Switching power supply device and light-emitting diode lighting device 有权
标题翻译：开关电源装置和发光二极管照明装置
公开(公告)号：US08729813B2
公开(公告)日：2014-05-20
申请号：US13721849
申请日：2012-12-20
申请人： Minebea Co., Ltd.
发明人： Masataka Suzuki , Yoshihiro Nakamura , Hideharu Kanamitsu , Hiroshi Imada
IPC分类号： H05B37/02
CPC分类号： H02M7/217 , H02M2001/0022 , H02M2001/0025 , H05B33/0815 , H05B37/02
摘要： Implemented are a switching power supply device and a light-emitting diode lighting device in which a variation in load current can be suppressed against a wide range of variation in AC voltage. The configuration of the switching power supply device and the light-emitting diode lighting device includes: a rectifier unit which rectifies AC input voltage and outputs pulsating-current voltage; a power converting unit which receives the pulsating-current voltage and supplies a predetermined load current to a load; a current detecting unit which detects the load current; a drive control unit which controls the power converting unit to regulate the load current to a constant level; and an input voltage detecting unit which detects a variation in the AC input voltage. The drive control unit controls the power converting unit depending on the variation in the AC input voltage detected by the input voltage detecting unit.
摘要翻译：实现了开关电源装置和发光二极管照明装置，其中可以在交流电压的宽范围变化中抑制负载电流的变化。开关电源装置和发光二极管照明装置的结构包括：整流单元，整流交流输入电压并输出脉动电流电压; 电力转换单元，其接收脉动电流电压并向负载提供预定的负载电流; 检测负载电流的电流检测单元; 驱动控制单元，其控制所述功率转换单元将所述负载电流调节到恒定水平; 以及输入电压检测单元，其检测AC输入电压的变化。驱动控制单元根据由输入电压检测单元检测到的交流输入电压的变化来控制功率转换单元。

70. 发明申请

US20140111884A1 SPINDLE MOTOR AND HARD DISK DRIVE THEREWITH 有权
标题翻译：主轴电机和硬盘驱动器
公开(公告)号：US20140111884A1
公开(公告)日：2014-04-24
申请号：US14052022
申请日：2013-10-11
申请人： MINEBEA CO., LTD.
发明人： Hideaki SHOWA , Ryoichi KUROSAWA , Hironobu TSUGE
IPC分类号： G11B19/20 , H02K1/12
CPC分类号： G11B19/2009 , H02K1/146 , H02K21/22 , H02K2201/09 , H02K2213/03
摘要： A thin spindle motor having a stator core with sufficient swaging strength even using thin magnetic steel sheets is provided, whereby the magnetic loss and the power consumption of the spindle motor are reduced. The stator core is formed by laminating plural stator laminations with a thickness of 0.1 to 0.2 mm and joined by a swaging portion. The swaging portion has an approximately rectangular shape having long sides extending along a radial direction when viewed from an axial direction. The swaging portion has a cross section with a middle portion parallel to the radial direction and a slope portion at the both sides when viewed from a circumferential direction, thereby forming a recess. The recess has a depth that is less than the thickness of the stator lamination whereby the swaging portion does not cut the stator lamination.
摘要翻译：提供了一种具有即使使用薄的电磁钢板也具有足够的模锻强度的定子芯的细主轴电动机，由此减小了主轴电动机的磁损耗和功率消耗。定子铁芯通过层压多个0.1〜0.2mm的定子叠片而形成，并通过型锻部分连接。模锻部具有从轴向观察时具有沿径向延伸的长边的大致矩形形状。该锻模部具有从圆周方向观察时具有平行于半径方向的中间部分的中间部分和两侧的倾斜部分的横截面，从而形成凹部。该凹部的深度小于定子层压体的厚度，由此，型锻部不切断定子层叠体。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式