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1. 发明申请

US20030194327A1 Impeller blade for axial flow fan having counter-rotating impellers 有权
标题翻译：用于具有反向旋转叶轮的轴流风扇的叶轮叶片
公开(公告)号：US20030194327A1
公开(公告)日：2003-10-16
申请号：US10393868
申请日：2003-03-21
申请人： NMB (USA), Inc.
发明人： Phillip James Bradbury , Phep Xuan Nguyen , Chalmers R. Jenkins , Scott H. Frankel
IPC分类号： F04B017/00
CPC分类号： F04D29/384 , H02K7/14 , H02K11/33 , H02K29/00
摘要： A method for determining the camber line and the thickness distribution for the blades used in fans having counter-rotating impellers.
摘要翻译：用于确定用于具有反向旋转叶轮的风扇中的叶片的外倾线和厚度分布的方法。

2. 发明申请

US20040207979A1 Foldable keyboard 审中-公开
标题翻译：可折叠键盘
公开(公告)号：US20040207979A1
公开(公告)日：2004-10-21
申请号：US10839024
申请日：2004-05-05
申请人： NMB (USA), Inc.
发明人： Chatree Sitalasai , Toshisada Takeda , Richard Acosta , Casey Peterson , Charles Fauble
IPC分类号： H05K005/00
CPC分类号： H01H13/86 , G06F1/1632 , G06F3/0221 , H01H2223/05
摘要： A portable foldable keyboard comprised of two housings, each of which contains a key assembly, and a central hinge. The two housings can be slid together when the keyboard is unfolded and they interlock to form a sturdy keyboard having the standard QWERTY keyswitch layout.
摘要翻译：一种便携式可折叠键盘，包括两个壳体，每个壳体包含一个键组件和一个中心铰链。当键盘展开时，两个外壳可以一起滑动，并且它们互锁以形成具有标准QWERTY钥匙开关布局的坚固的键盘。

3. 发明申请

WO0152007A3 REDUCED LENGTH PRESSURE COMPENSATING LIQUID FLOW REGULATOR 审中-公开
标题翻译：减少长度压力液体流量调节器
公开(公告)号：WO0152007A3
公开(公告)日：2002-01-10
申请号：PCT/US0033957
申请日：2000-12-14
申请人： NMB USA INC
发明人： WILFERT RUSSELL DEAN
IPC分类号： G05D7/01
CPC分类号： G05D7/0133 , Y10T137/7792
摘要： A reduced length, pressure compensating liquid flow regulator includes a poppet (20) defining a longitudinally extending hollow cylinder (32) having a front sensing orifice (38) and rear orifice (40). A retainer (24) maintains a biasing spring (22) at least partially within the cylinder (32), and biases the rear orifice (40) away seat (26). The seat has a closed front face (60) spaced from and facing the cylinder (32), side passages (62) rearwardly of the seat front face (60), and a downstream passage (64). A hollow housing (28) slidably receives the cylinder. The magnitude of the spacing between the seat front face (60) and the cylinder rear orifice (40) is self-adjusting as an inverse function of the flow rate, to provide a substantially constant flow through the device by compensating for variations in the pressure differential across the sense orifice (38).
摘要翻译：减小长度的压力补偿液体流量调节器包括限定纵向延伸的中空圆柱体（32）的提升头（20），该中空圆柱体具有前感测孔（38）和后孔（40）。保持器（24）至少部分地保持在气缸（32）内的偏压弹簧（22），并且将后孔口（40）偏压离开座椅（26）。所述座椅具有与所述气缸（32）间隔开并面对所述气缸（32）的封闭前面（60），所述座椅前面（60）后方的侧通道（62）和下游通道（64）。空心壳体（28）可滑动地容纳气缸。座椅前面（60）和气缸后孔（40）之间的间隔的大小作为流量的反函数进行自调节，以通过补偿压力变化来提供通过装置的基本上恒定的流量差分穿过感应孔（38）。

4. 发明申请

WO9953618A9 CIRCUIT SIMULATING A DIODE 审中-公开
标题翻译：电路仿真二极管
公开(公告)号：WO9953618A9
公开(公告)日：2000-02-03
申请号：PCT/US9907943
申请日：1999-04-12
申请人： NMB USA INC
IPC分类号： H03K17/74 , H03K17/06 , H03K17/30
CPC分类号： H03K17/302 , H03K17/063 , H03K2017/307
摘要： A circuit simulating the function of a diode in the sense that it conducts current in one direction and blocks current in the opposite direction, but which has a low forward voltage drop. A voltage comparator (12) and a three terminal switch (10) are connected so that the intrinsic reverse diode (11) associated with the switch is harnessed to conduct current in the direction in which it is desired to conduct current and to block current in the direction in which it is desired to block current. A voltage comparator controls the control terminal (G) of the three terminal switch to turn on the switch to conduct current from a terminal A to a terminal K when the voltage at terminal A is higher than the voltage at terminal K and to interrupt current from terminal K to terminal A when the voltage at the terminal K is higher than the voltage at terminal A. The switch terminal (source or drain) that is typically connected to the higher voltage of two voltage terminals is instead connected to the lower voltage of the two voltage terminals. The switch may be a MOSFET, p- or n-channel, depletion or enhancement. Alternatively, a bioplar transistor (30) may be connected to a voltage comparator to simulate the function of a diode. Alternate embodiments of voltage comparators are disclosed. The invention further includes a method of conducting current in one direction and blocking current in a second direction which reduces power losses.
摘要翻译：一种模拟二极管功能的电路，它在一个方向上传导电流，阻止相反方向的电流，但具有低的正向压降。连接电压比较器（12）和三端子开关（10），使得与开关相关联的本征反向二极管（11）被利用来沿着期望导通电流的方向导通电流并阻塞电流阻止电流的方向。当端子A的电压高于端子K的电压时，电压比较器控制三端子开关的控制端（G），使开关导通电流，从端子A传导到端子K，并中断来自当端子K处的电压高于端子A处的电压时，将端子K连接到端子A.通常连接到两个电压端子的较高电压的开关端子（源极或漏极）替代地连接到两个电压端子。开关可以是MOSFET，p-或n沟道，耗尽或增强。或者，生物晶体管（30）可以连接到电压比较器以模拟二极管的功能。公开了电压比较器的替代实施例。本发明还包括一种在一个方向上传导电流并且在第二方向阻断电流的方法，其减少功率损耗。

5. 发明申请

WO2005124170A2 FLUID DYNAMIC PRESSURE BEARING, SPINDLE MOTOR USING THE FLUID DYNAMIC PRESSURE BEARING AND RECORDING DISK DRIVE UNIT USING THE SPINDLE MOTOR 审中-公开
标题翻译：流体动力压力轴承，使用流体动力轴承的主轴电机和使用主轴电机的记录盘驱动单元
公开(公告)号：WO2005124170A2
公开(公告)日：2005-12-29
申请号：PCT/US2005/020321
申请日：2005-06-09
申请人： MINEBEA CO., LTD. , NMB (USA), INC. , OBARA, Rikuro
发明人： OBARA, Rikuro
IPC分类号： F16C32/06
CPC分类号： G11B19/2018 , F16C17/107 , F16C33/08 , F16C33/107 , F16C2370/12 , H02K5/163
摘要： A shaft body 2 of a fluid dynamic bearing having a flange portion 4 at one end is supported rotatably via radial direction micro clearances by the sleeve 5 having a dynamic pressure generating groove 11 on the inner peripheral portion. A flange portion 4 is inserted between the lower end surface of the sleeve 5 and end plate 7. A dynamic pressure generating groove 12 is formed on the lower end surface of sleeve 5, and a dynamic pressure generating groove 13 is formed on the upper surface of the endplate 7. The lower end surface of the sleeve 5 and the upper surface of the flange portion 4, and the upper surface of the end plate 7 and the lower surface of the flange portion 4 are facing each other via respective thrust direction micro clearances. Sleeve 5 is inserted into the case 6 such that the upper end surface is projected from the upper end surface of the case 6. The outer peripheral face of the sleeve is fixed at the upper end of the case 6 by filling an adhesive in an adhesive reservoir formed between the sleeve 5 and the case 6. Adhesion and leakage of the adhesive to the locations other than the specified locations to be filled can be prevented, the number of manufacturing steps for the fluid dynamic bearing is reduced, quality is maintained, mass procucibility is improved and low cost production is achieved.
摘要翻译：具有在一端具有凸缘部分4的流体动力轴承的轴体2通过径向方向的微间隙可旋转地通过在内周部分上具有动压产生槽11的套筒5支撑。在套筒5的下端面和端板7之间插入有凸缘部4.在套筒5的下端面上形成动压产生槽12，在上表面形成动压生成槽13 套筒5的下端面和凸缘部分4的上表面以及端板7的上表面和凸缘部分4的下表面通过相应的推力方向微型面对间隙。套筒5插入到壳体6中，使得上端表面从壳体6的上端面突出。套筒的外周面通过将粘合剂填充到粘合剂中而固定在壳体6的上端可以防止粘合剂与要填充的特定位置之间的位置的粘合和泄漏，流体动力轴承的制造步骤数量减少，质量得到保持，质量提高了生产性，实现了低成本生产。

6. 发明专利

AU5142500A Switching power supply for lowered distribution system disturbance 未知
公开(公告)号：AU5142500A
公开(公告)日：2000-12-05
申请号：AU5142500
申请日：2000-05-17
申请人： NMB USA INC
发明人： PARKER FRANCIS J , MAITIN STEVEN
IPC分类号： H02M1/00 , H02M1/42 , H02M5/293 , G05F1/10 , G05B24/02 , G05F1/40 , G05F1/455 , H02J1/00 , H02J3/12

7. 发明专利

AU5219499A Axial flow fan 未知
公开(公告)号：AU5219499A
公开(公告)日：2000-02-07
申请号：AU5219499
申请日：1999-07-20
申请人： NMB USA INC
发明人： BRADBURY PHILLIP , NGUYEN PHEP , JENKINS CHALMERS JR
IPC分类号： F04D29/38 , H02K7/14 , H02K11/00 , H02K11/04 , H02K29/00 , F04B17/03 , H02K5/00
摘要： Impeller blades and a method for designing impeller blades wherein the blades comprise a plurality of specially designed airfoil sections, each section having along substantially the entire length thereof, a cross-sectional shape characterized by a maximum thickness located substantially constantly between about 16% chord to about 23% chord and a maximum camber located substantially constantly between about 40% chord to about 51% chord. The blades are designed so that the axial width of the blades is decreased while maintaining performance parameters and design constraints.

8. 发明专利

AU3889699A Variable inductor 未知
公开(公告)号：AU3889699A
公开(公告)日：1999-12-06
申请号：AU3889699
申请日：1999-05-07
申请人： NMB USA INC
发明人： NAME NOT GIVEN
IPC分类号： H01F27/24 , H01F29/14 , H01F21/08

9. 发明专利

AU3737200A System and method for equalizing power from two power sources 未知
公开(公告)号：AU3737200A
公开(公告)日：2000-09-28
申请号：AU3737200
申请日：2000-03-10
申请人： NMB USA INC
发明人： JANSEN ARIAN
IPC分类号： H02M3/155 , H02J1/10 , H02M3/28 , H02M3/335 , H02M7/00
摘要： A system and a method may use variable-frequency power sources for supplying power to a load. The system and method use phase detection in order to automatically and substantially equalize the currents supplied to a load by each of the variable-frequency power sources, and to cancel a ripple component of the input current drawn by the system. First and second power sources supply power to the load. The power sources have a similar relationship between their respective variable switching frequencies and the power that they supply to the load. First and second switching frequencies of, respectively, the first and second power sources are locked to one another using phase detection to substantially equalize the power supplied to the load by each power source. The system and method are advantageously utilized to provide a power factor correction front-end for a switch-mode power supply. Power sources with non-linear and/or inverse relationships between power supplied and switching frequency can be used. In alternate embodiments power from series power sources is equalized by equalizing voltages supplied by each power source to a load.

10. 发明专利

AU3125402A Power converter 未知
公开(公告)号：AU3125402A
公开(公告)日：2002-05-21
申请号：AU3125402
申请日：2001-11-09
申请人： NMB USA INC
发明人： JANSEN ARIAN M , ZHANG XIAOYANG
IPC分类号： H02M7/21 , H02M3/28 , H02M3/335
摘要： A power converter having a transformer with a primary side winding and a secondary side winding, each having a switch. When the primary master switch is switched on, the transformer charges. When it is switched off, the intrinsic capacitance of the secondary slave switch discharges generating the zero voltage switching condition for the secondary slave switch. The secondary slave switch is switched on at a time determined in accordance with the waveform generated by the transformer. When the secondary slave switch is switched on, the transformer discharges and ultimately the charge from an output capacitor flows into the transformer as a backflow which charges the transformer. The secondary slave switch is switched off at a time determined in accordance with a current flowing through said secondary switch. The intrinsic capacitance of primary master switch discharges generating the zero voltage switching condition for primary master switch which is then switched on.

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