公开(公告)号：US08742440B2

公开(公告)日：2014-06-03

申请号：US13579174

申请日：2011-02-17

申请人： Mayuko Fudeta ,  Eiji Yamada

发明人： Mayuko Fudeta ,  Eiji Yamada

IPC分类号： H01L33/00 ,  H01L33/12 ,  H01L33/20

CPC分类号： H01L33/32 ,  H01L33/007 ,  H01L33/0075 ,  H01L33/025 ,  H01L33/04 ,  H01L33/12 ,  H01L33/20

摘要： Disclosed is a nitride semiconductor light-emitting element comprising a p-type nitride semiconductor layer 1, a p-type nitride semiconductor layer 2, and a p-type nitride semiconductor layer 3 placed in order above a nitride semiconductor active layer, wherein the p-type nitride semiconductor layer 1 and p-type nitride semiconductor layer 2 each contain Al, the average Al composition of the p-type nitride semiconductor layer 1 is equivalent to the average Al composition of the p-type nitride semiconductor layer 2, the p-type nitride semiconductor layer 3 has a smaller band gap than the p-type nitride semiconductor layer 2, the p-type impurity concentration of the p-type nitride semiconductor layer 2 and the p-type impurity concentration of the p-type nitride semiconductor layer 3 are both lower than the p-type impurity concentration of the p-type nitride semiconductor layer 1, and a method for producing same.

摘要翻译： 公开了一种氮化物半导体发光元件，其包括在氮化物半导体有源层上顺序放置的p型氮化物半导体层1，p型氮化物半导体层2和p型氮化物半导体层3，其中p p型氮化物半导体层1和p型氮化物半导体层2各自含有Al，p型氮化物半导体层1的平均Al组成等价于p型氮化物半导体层2的平均Al组成，p 型氮化物半导体层3具有比p型氮化物半导体层2更小的带隙，p型氮化物半导体层2的p型杂质浓度和p型氮化物半导体的p型杂质浓度 层3都低于p型氮化物半导体层1的p型杂质浓度，及其制造方法。

公开(公告)号：US20140062521A1

公开(公告)日：2014-03-06

申请号：US14113462

申请日：2012-04-25

申请人： Eiji Yamada

发明人： Eiji Yamada

IPC分类号： G01R31/26 ,  G01R31/02

CPC分类号： G01R31/26 ,  G01N25/72 ,  G01R31/046 ,  G01R31/2806 ,  G01R31/2812 ,  G09G3/006 ,  H02S50/10

摘要： A wiring defect inspecting method in accordance with the present invention comprises: obtaining a resistance of a short-circuited path of a semiconductor substrate; applying a voltage, which is specified on the basis of the resistance obtained, to the semiconductor substrate having a defect portion so as to cause the defect portion to generate heat; and capturing, with use of an infrared camera, an image of the semiconductor substrate whose temperature has increased due to the heat generated from the defect portion.

摘要翻译： 根据本发明的布线缺陷检查方法包括：获得半导体衬底的短路路径的电阻; 将基于所获得的电阻指定的电压施加到具有缺陷部分的半导体衬底，以使缺陷部分发热; 以及使用红外线照相机捕获由于从缺陷部分产生的热量而使温度升高的半导体基板的图像。

公开(公告)号：US08590137B2

公开(公告)日：2013-11-26

申请号：US13133548

申请日：2009-10-06

申请人： Hiroaki Urano ,  Eiji Yamada ,  Kazutaka Tatematsu ,  Yasuhiro Endo ,  Yasuaki Tahara ,  Akihiro Tanaka ,  Kenji Honda

发明人： Hiroaki Urano ,  Eiji Yamada ,  Kazutaka Tatematsu ,  Yasuhiro Endo ,  Yasuaki Tahara ,  Akihiro Tanaka ,  Kenji Honda

IPC分类号： H02K1/14 ,  H02K15/02

CPC分类号： H02K1/148 ,  H02K1/04 ,  H02K15/022

摘要： A stator provided with annular split stator cores, formed by stacking steel plates. Each plate includes a yoke and a stator tooth. The cores include a yoke portion a stator tooth portion. The stator is manufactured by arranging an electromagnetic steel plate between a first die and a second die. The first die has a hole shaped as a steel plate. The second die has a projection inserted into the hole and shaped as a steel plate. The steel plates are formed by the first and the second dies. In a gap between an inner surface of the first die that defines the hole and an outer surface of the projection, a gap at a part that forms the stator tooth portion is larger than a gap at a part that defines a circumferential end surface of the yoke portion located in a circumferential direction of the stator core.

摘要翻译： 一个定子，设有环形的分割定子芯，通过堆叠钢板形成。 每个板包括轭和定子齿。 芯部包括轭部，定子齿部。 定子通过在第一模具和第二模具之间布置电磁钢板来制造。 第一个模具有一个形状为钢板的孔。 第二模具具有插入孔中并且形成为钢板的突起。 钢板由第一和第二模具形成。 在限定孔的第一模具的内表面与突起的外表面之间的间隙中，形成定子齿部的部分的间隙大于限定了定子齿部的周向端面的部分的间隙 轭部位于定子芯的圆周方向。

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：US08242645B2

公开(公告)日：2012-08-14

申请号：US12669444

申请日：2008-07-17

申请人： Kazutaka Tatematsu ,  Eiji Yamada ,  Atomi Arakawa

发明人： Kazutaka Tatematsu ,  Eiji Yamada ,  Atomi Arakawa

IPC分类号： H02K1/32 ,  H02K9/00

CPC分类号： H02K1/2766 ,  H02K1/32 ,  H02K9/19

摘要： A rotating electric machine includes a rotation shaft arranged rotatably, a rotor having a storing hole capable of storing a permanent magnet, including the permanent magnet stored in the storing hole, and being fixed to the rotation shaft, a stator facing the rotor and including a coil, an end plate provided at an axial end of the rotor, a coolant passage formed in the end plate and running along an axial end of the permanent magnet for allowing a coolant to flow, and a discharge hole located at a radially inner side of the rotor with respect to a cooling target region including the permanent magnet and being located at an outer circumferential side of the rotor from a radially inner end of the permanent magnet, the discharge hole communicating with the coolant passage and being capable of discharging the coolant.

摘要翻译： 旋转电机包括可旋转地设置的旋转轴，具有能够存储永磁体的存储孔的转子，所述永久磁体包括存储在所述存储孔中的永磁体，并且固定到所述旋转轴，面向所述转子的定子包括： 线圈，设置在所述转子的轴向端部的端板，形成在所述端板中并沿着所述永磁体的轴向端部延伸以允许冷却剂流动的冷却剂通道，以及位于所述永磁体的径向内侧的排出孔 所述转子相对于包括所述永磁体的冷却目标区域从所述永磁体的径向内端位于所述转子的外周侧，所述排出孔与所述冷却剂通道连通并且能够排出所述冷却剂。

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：US20120025642A1

公开(公告)日：2012-02-02

申请号：US13259633

申请日：2009-04-17

申请人： Sadahisa Onimaru ,  Ryotarou Okamoto ,  Hirohito Matsui ,  Tomohiko Miyamoto ,  Eiji Yamada

发明人： Sadahisa Onimaru ,  Ryotarou Okamoto ,  Hirohito Matsui ,  Tomohiko Miyamoto ,  Eiji Yamada

IPC分类号： H02K1/32

CPC分类号： H02K1/32 ,  H02K1/276

摘要： A rotating electric machine that can be improved in cooling performance is provided. An end plate includes an annular plate portion arranged to be spaced from a rotor in an axial direction and secured to a rotation shaft, and a tubular portion protruding from an outer edge of the annular plate portion to abut on an axial end surface of the rotor. A partition plate arranged between the rotor and an end plate forms a first space between the rotor and the partition plate and a second space between the annular plate portion and the partition plate. A communication passage allowing the first space and the second space to communicate with each other is formed in the partition plate at a radially outer side relative to a permanent magnet. A through hole extending through the annular plate portion in the axial direction is formed in the annular plate portion at a radially inner side relative to the permanent magnet.

摘要翻译： 提供了可以提高冷却性能的旋转电机。 端板包括环形板部分，其被设置为沿轴向方向与转子间隔开并固定到旋转轴;以及管状部分，其从环形板部分的外边缘突出以抵靠转子的轴向端面 。 布置在转子和端板之间的隔板在转子和隔板之间形成第一空间，并且在环形板部分和隔板之间形成第二空间。 在第一空间和第二空间相互连通的连通通道相对于永磁体形成在隔板的径向外侧。 在环形板部分中，相对于永磁体在径向内侧形成有沿轴向延伸穿过环形板部分的通孔。

公开(公告)号：US20110258840A1

公开(公告)日：2011-10-27

申请号：US13133548

申请日：2009-10-06

申请人： Hiroaki Urano ,  Eiji Yamada ,  Kazutaka Tatematsu ,  Yasuhiro Endo ,  Yasuaki Tahara ,  Akihiro Tanaka ,  Kenji Honda

发明人： Hiroaki Urano ,  Eiji Yamada ,  Kazutaka Tatematsu ,  Yasuhiro Endo ,  Yasuaki Tahara ,  Akihiro Tanaka ,  Kenji Honda

IPC分类号： H02K15/02

CPC分类号： H02K1/148 ,  H02K1/04 ,  H02K15/022

摘要： A stator provided with an annular stator core formed by annularly arranging split stator cores, and also with coils mounted to the stator core. The split stator cores each includes a yoke portion extending in a circumferential direction of the stator core and a stator tooth protruding from the yoke portion. On at least part of side surfaces of the stator tooth that are arranged in a circumferential direction of the stator core, a radial end surface of the stator tooth that is located radially inward of the stator core, and, of radial end surfaces of the yoke portion that are arranged in a radial direction of the stator core, the radial end surface at which the stator tooth is formed, a rough surface portion is formed having surface roughness greater than that of circumferential end surfaces of the yoke portion that are located in a circumferential direction of the stator core.

摘要翻译： 定子，其设置有环形定子芯，其通过环形布置分开的定子芯，以及安装到定子芯的线圈形成。 分体定子铁心各自包括在定子铁心的周向延伸的轭部和从轭部突出的定子齿。 在沿着定子铁芯的圆周方向配置的定子齿的至少一部分侧表面上，定子齿的位于定子铁芯径向内侧的径向端面和轭的径向端面 所述定子铁心的径向方向配置在所述定子齿的径向端面上，形成表面粗糙度大于所述轭部的周向端面的粗糙面部， 定子铁心圆周方向。

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。