公开(公告)号：US20140028160A1

公开(公告)日：2014-01-30

申请号：US14009887

申请日：2012-04-04

申请人： Eiji Yamada ,  Ryoji Mizutani ,  Kenji Hiramoto ,  Hideo Nakai ,  Norimoto Minoshima

发明人： Eiji Yamada ,  Ryoji Mizutani ,  Kenji Hiramoto ,  Hideo Nakai ,  Norimoto Minoshima

IPC分类号： H02K1/22

CPC分类号： H02K1/22 ,  H02K1/223 ,  H02K1/24 ,  H02K19/12 ,  H02K19/26 ,  H02K19/28

摘要： A stator has a stator core, and stator windings wound around either the stator core or teeth of the stator. A rotor has a rotor core, windings wound around either the rotor core or teeth of the rotor, and magnetic auxiliary poles disposed between the teeth adjacent in a circumferential direction. The rotor further has diodes that are magnetic characteristic adjustment portions that cause the magnetic characteristic that occurs in the teeth by induced electromotive force produced in the rotor windings to vary in the circumferential direction of the rotor core.

摘要翻译： 定子具有定子芯，并且定子绕组卷绕在定子芯或定子的齿之间。 转子具有转子芯，缠绕在转子芯或转子的齿上的绕组，以及设置在沿圆周方向相邻的齿之间的磁辅助极。 转子还具有二极管，这些二极管是磁特性调节部分，其通过在转子绕组中产生的感应电动势在转子芯的圆周方向上变化而引起在齿中发生的磁特性。

公开(公告)号：US08519701B2

公开(公告)日：2013-08-27

申请号：US12878098

申请日：2010-09-09

申请人： Kazuhiro Goto ,  Eiji Yamada ,  Toshihiro Kimura ,  Yuji Sekitomi ,  Yuki Yamakawa ,  Mutsumi Matsuura ,  Takashi Sano ,  Hiroshi Abe

发明人： Kazuhiro Goto ,  Eiji Yamada ,  Toshihiro Kimura ,  Yuji Sekitomi ,  Yuki Yamakawa ,  Mutsumi Matsuura ,  Takashi Sano ,  Hiroshi Abe

IPC分类号： G01B7/30 ,  G01D5/14

CPC分类号： G01D5/145 ,  G01D5/2013

摘要： A magnetic resolver includes a stator core made of magnetic material, coils, and a rotor. The stator core has a base plate and protrusions formed integrally with the base plate so as to protrude from a surface of the base plate in the thickness direction. The coils are provided around the respective protrusions. The rotor is disposed so as to face the surface of the base plate with the coils interposed therebetween. The overlapping area between the rotor and each of the protrusions changes with a change in a rotation angle of the rotor relative to the stator core. The stator core has through-holes that pass through the base plate and the respective protrusions in the thickness direction.

摘要翻译： 磁解算器包括由磁性材料，线圈和转子制成的定子芯。 定子铁芯具有基板和与基板一体形成的突出部，以从基板的厚度方向的表面突出。 线圈设置在各个突起周围。 转子被设置成面对基板的表面，线圈插入其间。 转子和每个突起之间的重叠区域随着转子相对于定子芯的旋转角度的变化而变化。 定子铁心具有穿过基板和相应突起沿厚度方向的通孔。

公开(公告)号：US20130134823A1

公开(公告)日：2013-05-30

申请号：US13687934

申请日：2012-11-28

申请人： Eiji Yamada ,  Ryoji Mizutani ,  Shintaro Chinen ,  Kenji Hiramoto ,  Hideo Nakai

发明人： Eiji Yamada ,  Ryoji Mizutani ,  Shintaro Chinen ,  Kenji Hiramoto ,  Hideo Nakai

IPC分类号： H02K1/24

CPC分类号： H02K1/24 ,  H02K1/28 ,  H02K17/26 ,  H02K19/12

摘要： A rotor includes a plurality of salient poles, each of which is formed by a plurality of plate members including steel plates that are stacked together, provided extending in a radial direction and around which a coil is wound. The plurality of salient poles has auxiliary salient poles that protrude from the salient poles between two salient poles that are adjacent to one another. The auxiliary salient poles are formed by only a first plate member that is a portion of plate members that forms the salient poles.

摘要翻译： 转子包括多个凸极，每个凸极由多个板构件形成，所述多个板构件包括堆叠在一起的钢板，其设置为沿径向延伸并围绕线圈缠绕。 多个凸极具有从相邻的两个凸极之间的凸极突出的辅助凸极。 辅助凸极仅由作为形成凸极的板构件的一部分的第一板构件形成。

公开(公告)号：US20120242272A1

公开(公告)日：2012-09-27

申请号：US13428265

申请日：2012-03-23

申请人： Eiji Yamada ,  Kenji Hiramoto ,  Hideo Nakai ,  Norimoto Minoshima

发明人： Eiji Yamada ,  Kenji Hiramoto ,  Hideo Nakai ,  Norimoto Minoshima

IPC分类号： H02P23/00

CPC分类号： H02P29/032 ,  H02P25/024 ,  H02P29/66

摘要： A rotating electrical machine system includes a stator that has stator windings of a plurality of phases, and that generates a stator magnetomotive force in accordance with stator current of different phases, which is supplied to the stator windings of the plurality of phases; a rotor on which rotor windings are wound such that rotor current is generated in accordance with the stator magnetomotive force generated by the stator and a magnetic pole is formed by the rotor current; and a control unit that controls an output torque from the rotor, by controlling the stator current. In a case where a predetermined torque is output from the rotor, the control unit applies a pulse to the stator current so as to increase the stator current and reduce the rotor current, when a temperature of the rotor is high as compared with when the temperature of the rotor is low.

摘要翻译： 旋转电机系统包括定子，其具有多相的定子绕组，并且根据提供给多相的定子绕组的不同相的定子电流产生定子磁动势; 转子绕组缠绕的转子，使得根据由定子产生的定子磁动势产生转子电流，并通过转子电流形成磁极; 以及通过控制定子电流来控制来自转子的输出转矩的控制单元。 在从转子输出预定转矩的情况下，与转子的温度相比，当转子的温度高时，控制单元向定子电流施加脉冲以增加定子电流并降低转子电流， 的转子低。

公开(公告)号：US20120086292A1

公开(公告)日：2012-04-12

申请号：US13318961

申请日：2010-06-08

申请人： Kenji Ishida ,  Eiji Yamada

发明人： Kenji Ishida ,  Eiji Yamada

IPC分类号： H02K11/00

CPC分类号： H02K11/25

摘要： In the stator, a thermistor housed in a tube is arranged to be sandwiched between a coil end and a U-phase bus bar, allowing the thermistor to receive heat from above and below at two faces, that is a face of the U-phase bus bar and a top face of the coil end. Moreover, the thermistor can be placed substantially in close contact with the coil end. Accordingly, the temperature followability by the thermistor can be realized at high accuracy. As a result, there can be provided a stator having a configuration in which temperature followability of high accuracy can be achieved in measuring the temperature of a coil of a stator using a temperature detection element, and that can correspond to further downsizing of a rotating electric machine.

摘要翻译： 在定子中，容纳在管中的热敏电阻被布置成夹在线圈端和U相母线之间，允许热敏电阻在两面（即U相的表面）处从上下接收热量 母线和线圈端的顶面。 此外，热敏电阻可以基本上与线圈端部紧密接触。 因此，可以高精度地实现热敏电阻的温度跟随性。 结果，可以提供一种定子，其具有这样的结构，其中可以在使用温度检测元件测量定子的线圈的温度时实现高精度的温度跟随性，并且可以对应于进一步减小旋转电 机。

公开(公告)号：US20110136276A1

公开(公告)日：2011-06-09

申请号：US12979059

申请日：2010-12-27

申请人： Takeshi KAMIKAWA ,  Eiji Yamada ,  Masahiro Araki ,  Yoshika Kaneko

发明人： Takeshi KAMIKAWA ,  Eiji Yamada ,  Masahiro Araki ,  Yoshika Kaneko

IPC分类号： H01L21/306

CPC分类号： B82Y20/00 ,  H01L33/007 ,  H01S5/0213 ,  H01S5/2201 ,  H01S5/2214 ,  H01S5/2231 ,  H01S5/34333 ,  H01S2304/04 ,  H01S2304/12

摘要： A nitride semiconductor laser device uses a substrate with low defect density, contains reduced strains inside a nitride semiconductor film, and thus offers a satisfactorily long useful life. On a GaN substrate (10) with a defect density as low as 106 cm−2 or less, a stripe-shaped depressed portion (16) is formed by etching. On this substrate (10), a nitride semiconductor film (11) is grown, and a laser stripe (12) is formed off the area right above the depressed portion (16). With this structure, the laser stripe (12) is free from strains, and the semiconductor laser device offers a long useful life. Moreover, the nitride semiconductor film (11) develops reduced cracks, resulting in a greatly increased yield rate.

摘要翻译： 氮化物半导体激光器件使用具有低缺陷密度的衬底，在氮化物半导体膜内包含减少的应变，从而提供令人满意的长使用寿命。 在缺陷密度低至106cm -2以下的GaN衬底（10）上，通过蚀刻形成条形凹部（16）。 在该基板（10）上生长氮化物半导体膜（11），在凹部（16）正上方的区域形成激光条纹（12）。 利用这种结构，激光条纹（12）没有应变，半导体激光器件使用寿命长。 此外，氮化物半导体膜（11）产生减少的裂纹，导致大大提高的屈服率。

公开(公告)号：US07903708B2

公开(公告)日：2011-03-08

申请号：US10902481

申请日：2004-07-30

申请人： Takeshi Kamikawa ,  Eiji Yamada ,  Masahiro Araki ,  Yoshika Kaneko

发明人： Takeshi Kamikawa ,  Eiji Yamada ,  Masahiro Araki ,  Yoshika Kaneko

IPC分类号： H01S5/00

CPC分类号： B82Y20/00 ,  H01L33/007 ,  H01S5/0213 ,  H01S5/2201 ,  H01S5/2214 ,  H01S5/2231 ,  H01S5/34333 ,  H01S2304/04 ,  H01S2304/12

摘要： A nitride semiconductor laser device uses a substrate with low defect density, contains reduced strains inside a nitride semiconductor film, and thus offers a satisfactorily long useful life. On a GaN substrate (10) with a defect density as low as 106 cm−2 or less, a stripe-shaped depressed portion (16) is formed by etching. On this substrate (10), a nitride semiconductor film (11) is grown, and a laser stripe (12) is formed off the area right above the depressed portion (16). With this structure, the laser stripe (12) is free from strains, and the semiconductor laser device offers a long useful life. Moreover, the nitride semiconductor film (11) develops reduced cracks, resulting in a greatly increased yield rate.

摘要翻译： 氮化物半导体激光器件使用具有低缺陷密度的衬底，在氮化物半导体膜内包含减少的应变，从而提供令人满意的长使用寿命。 在缺陷密度低至106cm -2以下的GaN衬底（10）上，通过蚀刻形成条形凹部（16）。 在该基板（10）上生长氮化物半导体膜（11），在凹部（16）正上方的区域形成激光条纹（12）。 利用这种结构，激光条纹（12）没有应变，半导体激光器件使用寿命长。 此外，氮化物半导体膜（11）产生减少的裂纹，导致大大提高的屈服率。

公开(公告)号：US20100259136A1

公开(公告)日：2010-10-14

申请号：US12740044

申请日：2008-10-17

申请人： Kenji Hiramoto ,  Hideo Nakai ,  Eiji Yamada ,  Norimoto Minoshima ,  Masahiro Seguchi

发明人： Kenji Hiramoto ,  Hideo Nakai ,  Eiji Yamada ,  Norimoto Minoshima ,  Masahiro Seguchi

IPC分类号： H02K3/28 ,  H02K11/04 ,  H02P23/00

CPC分类号： H02K19/12 ,  H02K1/223 ,  H02K19/28 ,  H02K21/042

摘要： A plurality of salient poles projecting toward a stator are arranged on a rotor core along the circumferential direction while being spaced apart from each other, and rotor windings are wound around these salient poles. The rotor windings are short-circuited through diodes, respectively; and when currents rectified by the diodes flow through the rotor windings, the salient poles are magnetized to produce a magnet where the magnetic pole is fixed. The width θ of each salient pole in the circumferential direction is smaller than a width corresponding to an electric angle of 180° of the rotor, and the rotor windings are wound around each salient pole by short-pitch winding.

摘要翻译： 在定子上突出的多个凸极相互间隔地配置在转子铁心上，并且转子绕组缠绕在这些凸极上。 转子绕组分别通过二极管短路; 并且当由二极管整流的电流流过转子绕组时，凸极被磁化以产生固定磁极的磁体。 宽度和长度 每个凸极在圆周方向上的距离小于对应于转子180°的电角度的宽度，并且转子绕组通过短间距绕组缠绕在每个凸极上。

公开(公告)号：US20070066029A1

公开(公告)日：2007-03-22

申请号：US11601795

申请日：2006-11-20

申请人： Takeshi Kamikawa ,  Eiji Yamada ,  Masahiro Araki

发明人： Takeshi Kamikawa ,  Eiji Yamada ,  Masahiro Araki

IPC分类号： H01L21/76 ,  H01L21/8242

CPC分类号： H01S5/32341 ,  H01L33/20 ,  H01L33/24 ,  H01L33/32 ,  H01S5/0202 ,  H01S5/0207 ,  H01S5/2201 ,  H01S5/2231 ,  H01S2304/12

摘要： On a processed substrate having an engraved region as a depressed portion formed thereon, a nitride semiconductor thin film is laid. The sectional area occupied by the nitride semiconductor thin film filling the depressed portion is 0.8 times the sectional area of the depressed portion or less.

公开(公告)号：US20060057824A1

公开(公告)日：2006-03-16

申请号：US11221951

申请日：2005-09-09

申请人： Masahiro Araki ,  Eiji Yamada ,  Takayuki Yuasa ,  Yuhzoh Tsuda ,  Nakao Akutsu

发明人： Masahiro Araki ,  Eiji Yamada ,  Takayuki Yuasa ,  Yuhzoh Tsuda ,  Nakao Akutsu

IPC分类号： C23C16/00 ,  H01L21/20

CPC分类号： C23C16/303 ,  B82Y20/00 ,  C23C16/45504 ,  C23C16/45563 ,  C23C16/45574 ,  C30B25/14 ,  C30B29/403 ,  H01L21/02389 ,  H01L21/02458 ,  H01L21/02507 ,  H01L21/0254 ,  H01L21/0262 ,  H01S5/0014 ,  H01S5/0202 ,  H01S5/34333 ,  H01S2304/04

摘要： The present invention relates to an apparatus for producing a nitride semiconductor by crystal-growing the nitride semiconductor on a substrate by diffusing a gas containing a source gas of group III element and a source gas of group V element. The gas is diffused in parallel with the substrate and from upstream to downstream. The apparatus has the substrate housed in the apparatus and a flow channel for allowing the gas to flow in the flow channel. The apparatus also has a plurality of protrusions provided on an inner wall of the flow channel. A partition for causing the source gas of group III element and the source gas of group V element to be introduced separately into the flow channel is provided on the upstream portion of the flow channel and in a horizontal direction. The protrusions are formed on the upper and lower surfaces of the partition. With this structure, the source gas of group III element and the source gas of group V element are more uniformly mixed before the source gases are supplied.

摘要翻译： 本发明涉及通过使含有III族元素的源气体和V族元素源气体的气体扩散而在衬底上晶体生长氮化物半导体来制造氮化物半导体的装置。 气体与底物平行扩散，从上游到下游扩散。 该装置具有容纳在装置中的基板和用于允许气体在流动通道中流动的流动通道。 设备还具有设置在流动通道的内壁上的多个突起。 在流路的上游部分和水平方向上设置用于将III族元素的源气体和V族元素的源气体分开引入流路的分隔。 突起形成在隔板的上表面和下表面上。 利用这种结构，在供应源气体之前，III族元素的源气体和V族元素的源气体更均匀地混合。