专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

71. 发明授权

US07060518B2 Semiconductor optical device and the fabrication method 失效
公开(公告)号：US07060518B2
公开(公告)日：2006-06-13
申请号：US11240903
申请日：2005-09-30
申请人： Susumu Kondo , Matsuyuki Ogasawara , Ryuzo Iga , Yasuhiro Kondo , Yoshio Noguchi , Masahiro Yuda , Ken Tsuzuki , Satoshi Oku
发明人： Susumu Kondo , Matsuyuki Ogasawara , Ryuzo Iga , Yasuhiro Kondo , Yoshio Noguchi , Masahiro Yuda , Ken Tsuzuki , Satoshi Oku
IPC分类号： H01L21/00
CPC分类号： B82Y20/00 , G02F1/01708 , H01S5/0265 , H01S5/2226 , H01S5/227 , H01S5/3072
摘要： A semiconductor optical device includes a semiconductor substrate and a stacked body formed by at least a first cladding layer, an active region and a second cladding layer; wherein both sides of the stacked body are buried by a burying layer formed by a semi-insulating semiconductor crystal; the burying layer includes a first layer that is placed adjacent to both sides of the stacked body and a second layer that is placed adjacent to the first layer; the first layer includes Ru as a dopant; composition of the second layer is different from the composition of the first layer, or a dopant of the second layer is different from the dopant of the first layer. The device can also be configured such that the width of the active region is smaller than the width of the cladding layers of the stacked body; and a Ru-doped semi-insulating layer is provided in a space between the burying layer and the active region in both sides of the active region.

72. 发明申请

US20060030065A1 Semiconductor optical device and the fabrication method 失效
公开(公告)号：US20060030065A1
公开(公告)日：2006-02-09
申请号：US11240903
申请日：2005-09-30
申请人： Susumu Kondo , Matsuyuki Ogasawara , Ryuzo Iga , Yasuhiro Kondo , Yoshio Noguchi , Masahiro Yuda , Ken Tsuzuki , Satoshi Oku
发明人： Susumu Kondo , Matsuyuki Ogasawara , Ryuzo Iga , Yasuhiro Kondo , Yoshio Noguchi , Masahiro Yuda , Ken Tsuzuki , Satoshi Oku
IPC分类号： H01L21/00
CPC分类号： B82Y20/00 , G02F1/01708 , H01S5/0265 , H01S5/2226 , H01S5/227 , H01S5/3072
摘要： A semiconductor optical device includes a semiconductor substrate and a stacked body formed by at least a first cladding layer, an active region and a second cladding layer; wherein both sides of the stacked body are buried by a burying layer formed by a semi-insulating semiconductor crystal; the burying layer includes a first layer that is placed adjacent to both sides of the stacked body and a second layer that is placed adjacent to the first layer; the first layer includes Ru as a dopant; composition of the second layer is different from the composition of the first layer, or a dopant of the second layer is different from the dopant of the first layer. The device can also be configured such that the width of the active region is smaller than the width of the cladding layers of the stacked body; and a Ru-doped semi-insulating layer is provided in a space between the burying layer and the active region in both sides of the active region.

73. 发明授权

US06987343B2 Motor 失效
标题翻译：发动机
公开(公告)号：US06987343B2
公开(公告)日：2006-01-17
申请号：US11007293
申请日：2004-12-09
申请人： Masaki Tagome , Yasuhiro Kondo , Naoyuki Kadoya
发明人： Masaki Tagome , Yasuhiro Kondo , Naoyuki Kadoya
IPC分类号： H02K21/12
CPC分类号： H02K1/246 , H02K1/223 , H02K1/2766 , H02K16/02 , H02K21/14
摘要： A motor includes a rotor including a permanent magnet type rotor unit having a plurality of permanent magnets and a reluctance type rotor unit having a plurality of salient pole portions, the rotor units being coupled to each other in an axial direction. A stator generates a field for driving the rotor. The permanent magnet type rotor unit and the reluctance type rotor unit have an angular deviation therebetween in the direction of rotation to obtain desired torque characteristics. The reluctance type rotor unit has slits for preventing flux leakage from the permanent magnets. The slits are formed with the angular deviation in the direction of rotation from respective positions symmetric about a center of the salient pole portions. Flux leakage is thus prevented to avoid deterioration in characteristics.
摘要翻译：电动机包括：转子，其包括具有多个永磁体的永磁型转子单元和具有多个凸极部的磁阻型转子单元，转子单元沿轴向彼此连接。定子产生用于驱动转子的场。永磁型转子单元和磁阻型转子单元在旋转方向上具有角度偏差，以获得期望的转矩特性。磁阻式转子单元具有用于防止永久磁铁漏磁的缝隙。这些狭缝形成有从关于凸极部分的中心对称的各个位置的旋转方向上的角度偏差。因此防止了磁通泄漏以避免特性劣化。

74. 发明授权

US06858961B2 Motor 失效
标题翻译：发动机
公开(公告)号：US06858961B2
公开(公告)日：2005-02-22
申请号：US10229129
申请日：2002-08-28
申请人： Masaki Tagome , Yasuhiro Kondo
发明人： Masaki Tagome , Yasuhiro Kondo
IPC分类号： H02K16/00 , H02K1/27 , H02K16/02 , H02K19/06 , H02K19/10 , H02K21/14 , H02K21/12 , H02K1/00 , H02K1/22
CPC分类号： H02K1/246 , B60L11/14 , B60L11/1803 , B60L11/1887 , B60L15/20 , B60L2210/10 , B60L2210/40 , B60L2220/14 , B60L2220/18 , B60L2240/421 , B60L2240/423 , B60L2270/142 , B60L2270/145 , H02K1/276 , H02K1/2786 , H02K16/02 , H02K21/14 , Y02T10/641 , Y02T10/645 , Y02T10/70 , Y02T10/7077 , Y02T10/7216 , Y02T10/7241 , Y02T10/7275 , Y02T90/34
摘要： A motor comprising: a rotor including a permanent magnet type rotor unit having a plurality of permanent magnets and a reluctance type rotor unit having a plurality of magnetic salient pole portions and a plurality of slits for preventing flux leakage, the rotor units being coupled to each other in an axial direction; and a stator for generating a field for driving the rotor. Elongated holes for preventing the short-circuit of magnetic fluxes are arranged near edges of the permanent magnet of the permanent magnet type rotor unit. The elongated holes or notches are arranged within a range defined so that 0.95α≦θ≦1.05α with α={(360/S)−R}/2 (degrees), where θ is an angle formed between a magnetic pole boundary and a center of the elongated hole or the notch in a forward direction of rotation of the rotor with respect to a center of a rotating shaft, R is an angle formed by a tooth width of the stator with respect to the center of the rotating shaft, P is the number of rotor poles, and the number of stator slots is S=3P/2.
摘要翻译：一种电动机，包括：转子，其包括具有多个永磁体的永磁型转子单元和具有多个磁性突极部的磁阻型转子单元和用于防止漏磁的多个狭缝，所述转子单元与每个另一个在轴向; 以及用于产生用于驱动转子的场的定子。用于防止磁通量短路的细长孔布置在永久磁铁式转子单元的永磁体的边缘附近。细长的孔或凹口被布置在限定的范围内，使得具有α= {（360 / S）-R} / 2（度）的0.95alpha <= 1.05alpha，其中θ是在磁极边界和细长孔的中心或切口相对于转轴的中心在转子的向前方向上的角度，R是由定子的齿宽相对于旋转的中心形成的角度轴，P为转子极数，定子槽数为S = 3P / 2。

75. 发明授权

US5504404A Method and apparatus for controlling motor 失效
标题翻译：电机控制方法及装置
公开(公告)号：US5504404A
公开(公告)日：1996-04-02
申请号：US307061
申请日：1994-09-16
申请人： Satoshi Tamaki , Yasufumi Ikkai , Yasuhiro Kondo
发明人： Satoshi Tamaki , Yasufumi Ikkai , Yasuhiro Kondo
IPC分类号： B60L15/02 , H02P21/08 , H02P7/06
CPC分类号： B60L15/025 , H02P21/08 , Y02T10/643
摘要： In a method and an apparatus for controlling a motor, one type or a plurality of types of weakening current are previously set, a first torque command current determined from a speed deviation between a speed command to the motor and the present speed of the motor is compared with torque currents corresponding the torques, so that a second torque command current and a weakening current are determined and outputted depending on which range of the torque currents corresponding the torques the first torque command current falls upon. Thus, the second torque command current and the weakening current can be determined simply and efficiently. According to another method and apparatus, the weakening current and the torque current are determined while the weakening factor is varied as appropriate, on the conditions that the sum of voltage vectors of sections of the motor falls within a restrictive circle that depends on the applied voltage to the motor and that the torque current should be equal to a value resulting from multiplying the torque command current determined from the speed deviation with the weakening factor. Then, the motor can produce the maximum torque with less weakening current, thus being capable of maximum efficiency control.
摘要翻译：在一种用于控制电动机的方法和装置中，预先设定一种或多种弱化电流，从电动机的速度指令与电动机的当前速度之间的速度偏差确定的第一转矩指令电流为与对应于扭矩的转矩电流相比，从而根据与第一转矩指令电流下降的转矩相对应的转矩电流的范围来确定和输出第二转矩指令电流和弱化电流。因此，可以简单有效地确定第二转矩指令电流和弱化电流。根据另一种方法和装置，在弱化因子根据适当的变化来确定弱化电流和转矩电流的条件下，在电动机部分的电压矢量之和落在取决于施加电压的限制圈内的条件下并且转矩电流应等于由速度偏差确定的转矩指令电流与弱化因子相乘的值。然后，电机可以产生最小扭矩，减弱电流，从而能够最大限度的提高效率。

76. 发明授权

US5473232A Sensorless brushless motor driving apparatus with induced voltage signal latch 失效
标题翻译：带感应电压信号锁定器的无传感器无刷电机驱动装置
公开(公告)号：US5473232A
公开(公告)日：1995-12-05
申请号：US156597
申请日：1993-11-23
申请人： Satoshi Tamaki , Yasuhiro Kondo
发明人： Satoshi Tamaki , Yasuhiro Kondo
IPC分类号： H02P6/16 , H02P6/08 , H02P6/18 , H02P7/00
CPC分类号： H02P6/08 , H02P6/182
摘要： In a driving apparatus for a sensorless brushless motor, changing-over of excitation is executed at every electric angle of 30.degree. from a trigger point defined by a signal obtained by latching an induced voltage at the time of fall-down of the pulse-width modulation signal.
摘要翻译：在无传感器无刷电动机的驱动装置中，从由脉冲宽度下降时的感应电压闭锁而获得的信号所规定的触发点，以30°的每个电角度进行激励的切换调制信号。

77. 发明授权

US5444340A Controlling apparatus of motor 失效
标题翻译：电机控制装置
公开(公告)号：US5444340A
公开(公告)日：1995-08-22
申请号：US307065
申请日：1994-09-16
申请人： Satoshi Tamaki , Yasufumi Ikkai , Yasuhiro Kondo
发明人： Satoshi Tamaki , Yasufumi Ikkai , Yasuhiro Kondo
IPC分类号： B60L3/00 , B60L9/18 , B60L11/18 , H02H7/08 , H02P6/12 , H02P6/16
CPC分类号： B60L3/0023 , B60L11/1807 , H02H7/0844 , Y02T10/7005
摘要： In a controlling apparatus of a motor, an address generating device generates digital address signals corresponding to a position of a rotor of the motor on the basis of the Z-phase, A-phase, and B-phase signals outputted from an encoder installed in the motor. A sine wave data for driving the motor is readout based on the digital address signal from a waveform memory device to drive the motor in accordance with the sine wave data by a PWM inverter. An abnormality detecting circuit detects agreement/disagreement of a timing level of an output signal of the waveform memory device which is binarized with using zero as a threshold and shifted a predetermined amount from a leading edge or trailing edge thereof and a level of the CS signal. A motor stopping device stops the motor in response to a disagreement detecting signal of the abnormality detecting circuit.
摘要翻译：在电动机的控制装置中，地址产生装置基于从安装在电动机中的编码器输出的Z相，A相和B相信号，生成与电动机的转子位置对应的数字地址信号电机。基于来自波形存储装置的数字地址信号读出用于驱动电动机的正弦波数据，以通过PWM逆变器根据正弦波数据驱动电动机。异常检测电路检测使用零作为阈值二值化的波形存储器件的输出信号的定时电平的一致/不一致，并从其前沿或后沿偏移预定量，并且CS信号的电平。电动机停止装置响应于异常检测电路的不一致检测信号停止电动机。

78. 发明授权

US5321340A Driving method for three-phase stepping motor 失效
标题翻译：三相步进电机的驱动方式
公开(公告)号：US5321340A
公开(公告)日：1994-06-14
申请号：US861230
申请日：1992-03-31
申请人： Satoshi Tamaki , Yasuhiro Kondo , Yasufumi Ikkai
发明人： Satoshi Tamaki , Yasuhiro Kondo , Yasufumi Ikkai
IPC分类号： H02P8/22 , H02P8/32 , H02P8/00
CPC分类号： H02P8/32
摘要： This invention provides a driving method for a three-phase stepping motor used in various types of electrical equipment, which driving method reduces vibration peculiar to a stepping motor and can drive the stepping motor smoothly. Specifically, the driving method comprises alternating two-phase conduction of conducting a current from a first terminal to a second terminal of coils having three terminals of a three-phase stepping motor internally connected by a Y-connection with three-phase conduction of conducting the first terminal to the second terminal and from a third terminal to the second terminal simultaneously, to energize the coils sequentially according to a specified sequence, thereby making the motor rotate in units of 1/2 of the basic step angle with low vibration.
摘要翻译：本发明提供了一种用于各种电气设备中的三相步进电动机的驱动方法，该驱动方法减少了步进电动机特有的振动，并能平稳地驱动步进电动机。具体地说，驱动方法包括：将来自第一端子的电流传导到具有三相步进电机的三端的线圈的二相导通，该三相步进电动机通过三相导通三相导通，第一端子到第二端子，并且从第三端子到第二端子同时地，根据指定的顺序顺序地给线圈通电，从而使电动机以低振动的基本阶梯角的1/2为单位旋转。

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