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    • 83. 发明申请
    • Silicon Carbide Bipolar Semiconductor Device
    • 碳化硅双极半导体器件
    • US20090045413A1
    • 2009-02-19
    • US12097019
    • 2006-12-13
    • Ryosuke IshiiKoji NakayamaYoshitaka SugawaraToshiyuki MiyanagiHidekazu TsuchidaIsaho KamataTomonori Nakamura
    • Ryosuke IshiiKoji NakayamaYoshitaka SugawaraToshiyuki MiyanagiHidekazu TsuchidaIsaho KamataTomonori Nakamura
    • H01L29/24
    • H01L29/1604H01L21/0465H01L21/047H01L29/0615H01L29/0619H01L29/0661H01L29/1608H01L29/6606H01L29/66068H01L29/8613
    • In a SiC bipolar semiconductor device with a mesa structure having a SiC drift layer of a first conductive type and a SiC carrier injection layer of a second conductive type that are SiC epitaxial layers grown from a surface of a SiC single crystal substrate, the formation of stacking faults and the expansion of the area thereof are prevented and thereby the increase in forward voltage is prevented. Further, a characteristic of withstand voltage in a reverse biasing is improved. An forward-operation degradation preventing layer is formed on a mesa wall or on a mesa wall and a mesa periphery to separate spatially the surface of the mesa wall from a pn-junction interface. In one embodiment, the forward-operation degradation preventing layer is composed of a silicon carbide low resistance layer of a second conductive type that is equipotential during the application of a reverse voltage. In another embodiment, the forward-operation degradation preventing layer is composed of a silicon carbide conductive layer of a second conductive type, and a metal layer that is equipotential during the application of a reverse voltage is formed on a surface of the silicon carbide conductive layer. In still another embodiment, the forward-operation degradation preventing layer is composed of a high resistance amorphous layer.
    • 在具有由SiC单晶衬底的表面生长的SiC外延层的具有第一导电类型的SiC漂移层和第二导电类型的SiC载流子注入层的台阶结构的SiC双极型半导体器件中,形成 防止堆垛层错及其面积的膨胀,从而防止正向电压的增加。 此外,提高了反向偏置中的耐受电压的特性。 在台面壁或台面壁和台面周边上形成正向操作降解防止层,以在空间上分离台面壁的表面与pn结界面。 在一个实施例中,正向操作降解防止层由在施加反向电压期间具有等电位的第二导电类型的碳化硅低电阻层构成。 在另一个实施方案中,正向操作降解防止层由第二导电类型的碳化硅导电层构成,并且在施加反向电压期间具有等电位的金属层形成在碳化硅导电层的表面上 。 在另一个实施方案中,正向操作降解防止层由高电阻非晶层组成。
    • 84. 发明申请
    • Image Recording Apparatus
    • 图像记录装置
    • US20080239049A1
    • 2008-10-02
    • US12056029
    • 2008-03-26
    • Yuji SakanoMasahiro NishizakiKoji Nakayama
    • Yuji SakanoMasahiro NishizakiKoji Nakayama
    • B41J2/01
    • B41J11/007B41J13/02
    • An image recording apparatus includes a recording head that records an image on a record medium, a first and a second rollers respectively having rotation shafts parallel to each other, and an endless conveyor belt which is looped around the first and second rollers, and which has an external surface for conveying thereon a record medium in a conveyance direction from the first roller toward the second roller while supporting the record medium. On the circumferential surface of the second roller, provided are a abutting region abutting the internal surface of the conveyor belt, and a larger diameter region not abutting the internal surface of the conveyor belt and having a radius surpassing a sum of a thickness of the conveyor belt and a radius of the abutting region.
    • 一种图像记录装置,包括:记录头,其将图像记录在记录介质上,分别具有彼此平行的旋转轴的第一和第二辊;以及围绕第一和第二辊环绕的环形传送带, 外部表面,用于在支撑记录介质的同时在第一辊向第二辊的输送方向上传送记录介质。 在第二辊的圆周表面上设置有邻接输送带的内表面的抵接区域和不邻接输送带的内表面的较大直径的区域,其半径超过输送带的厚度之和 带和邻接区域的半径。
    • 89. 发明授权
    • Insecticide transpiration apparatus
    • 杀虫剂蒸腾装置
    • US06926902B2
    • 2005-08-09
    • US10238626
    • 2002-09-11
    • Masafumi InoueKoji NakayamaYoshio Katsuda
    • Masafumi InoueKoji NakayamaYoshio Katsuda
    • A01M1/20A01N53/00A61L9/12A01N25/10A01N53/06
    • A01M1/2055A01M1/2033A01M2200/012A01N53/00A61L9/122A01N25/34A01N25/18A01N2300/00
    • There is provided an insecticide transpiration apparatus capable of transpiring insecticide at room temperature. The apparatus includes an apparatus main body having a recipient recess capable of accommodating an insecticide cartridge, an insecticide cartridge rotatably supported in the recipient recess, a driving means which is composed of a motor connected to a rotation support shaft of the insecticide cartridge and an electric source and which is contained in the apparatus main body, and a cover pivoted to the apparatus main body so as to cover the insecticide cartridge in the recipient recess, wherein the insecticide cartridge includes an annular hollow structure which accommodates granular insecticide-impregnated bodies and which has openings in an inner peripheral surface and an outer peripheral surface thereof, a core portion situated at the center of the hollow structure and connected to the rotation support shaft, a plurality of spoke portions connecting the core portion and the hollow structure, and blade portions integrally formed with the hollow structure so as to extend from the inner peripheral surface toward the center thereof and adapted to promote passing of air from the inner peripheral surface to the outer peripheral surface of the hollow structure.
    • 提供能够在室温下喷洒杀虫剂的杀虫剂蒸腾装置。 该装置包括具有能够容纳杀虫剂药筒的受体凹部的装置主体,可旋转地支撑在受体凹部中的杀虫剂药筒,由与杀虫剂药筒的旋转支撑轴连接的电动机和驱动装置主体构成的驱动装置, 并且其被包含在装置主体中,以及盖枢转到装置主体以覆盖接收器凹部中的杀虫剂盒的盖,其中杀虫剂盒包括容纳粒状杀虫剂浸渍体的环形中空结构,并且其中 在其内周面和外周面具有开口,位于中空结构的中心并连接到旋转支撑轴的芯部,连接芯部和中空结构的多个辐条部分,以及叶片部分 与中空结构一体地形成为从内侧延伸 r圆周表面朝向其中心,并且适于促进空气从中空结构的内周表面到外周表面的通过。