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    • 1. 发明授权
    • Centrifugal blower having noise-reduction structure
    • 具有降噪结构的离心式鼓风机
    • US06821088B2
    • 2004-11-23
    • US10097231
    • 2002-03-13
    • Masaharu SakaiKouji Matsunaga
    • Masaharu SakaiKouji Matsunaga
    • F04D2942
    • F04D29/422
    • In a predetermined range from a nose portion toward a scroll finish side in a scroll casing of a centrifugal blower, a first clearance dimension on a side of a suction port between an outer periphery of a centrifugal fan and a side plate of the scroll casing is set smaller than a second clearance dimension on a side opposite to the suction port between the outer periphery of the centrifugal fan and the side plate of the scroll casing. In addition, in the vicinity of the nose portion, a first wall part of the scroll casing on the side of the suction port protrudes toward a scroll finish side, from a second wall part of the scroll casing on the side opposite to the suction port.
    • 在离心式鼓风机的涡旋壳体中从鼻部向涡旋端面侧的预定范围内,离心风扇的外周与涡旋壳体的侧板之间的吸入口侧的第一间隙尺寸为 在与离心风扇的外周和涡旋壳体的侧板之间的吸入口相对的一侧上小于第二间隙尺寸。 此外,在鼻部附近,涡旋壳体的吸入口侧的第一壁部从涡旋壳体的与吸引口相反的一侧的第二壁部朝向涡旋端面突出 。
    • 2. 发明申请
    • Centrifugal blower
    • 离心式鼓风机
    • US20070274833A1
    • 2007-11-29
    • US11888080
    • 2007-07-31
    • Masaharu SakaiKouji MatsunagaYasushi Mitsuishi
    • Masaharu SakaiKouji MatsunagaYasushi Mitsuishi
    • F01D1/02
    • F04D29/30F04D29/4233
    • A centrifugal multi-blade fan has multiple blades about a rotational shaft and draws in air along the rotational shaft and then blows the air approximately perpendicular to the rotational shaft to reduce wind noise. A scroll casing encloses the multi-blade fan and defines a scroll-shaped airflow passage for directing the air blown from the multi-blade fan. The scroll casing has an intake opening and an outlet opening at a scroll end, in a downstream scroll casing portion. The scroll casing expands such that a flow passage cross-sectional area on the airflow downstream side is larger than that on an airflow upstream side. A ratio of a blade length to a diameter of the multi-blade fan is greater than or equal to 0.12, and an outer scroll casing radius, relative to the rotational axis, increases as a logarithmic spiral, its expansion angle being from 3.3° to 4.8°.
    • 离心式多叶片风扇具有围绕旋转轴的多个叶片,并沿着旋转轴吸入空气,然后大致垂直于旋转轴吹送空气以减少风噪声。 涡旋壳体包围多叶片风扇并且限定用于引导从多叶片风扇吹出的空气的涡旋状气流通道。 涡旋壳体在下游涡旋壳体部分中具有在涡旋端处的进气开口和出口。 涡旋壳体膨胀,使得气流下游侧的流路横截面积大于气流上游侧的流路截面积。 叶片长度与多叶片风扇的直径的比率大于或等于0.12,并且相对于旋转轴线的外涡旋壳体半径随着对数螺旋而增加,其膨胀角为3.3°至 4.8°。
    • 4. 发明申请
    • Centrifugal blower
    • 离心式鼓风机
    • US20100098535A1
    • 2010-04-22
    • US12653665
    • 2009-12-16
    • Masaharu SakaiKouji MatsunagaYasushi Mitsuishi
    • Masaharu SakaiKouji MatsunagaYasushi Mitsuishi
    • F04D29/44
    • F04D29/30F04D29/4233
    • A centrifugal multi-blade fan has multiple blades about a rotational shaft and draws in air along the rotational shaft and then blows the air approximately perpendicular to the rotational shaft to reduce wind noise. A scroll casing encloses the multi-blade fan and defines a scroll-shaped airflow passage for directing the air blown from the multi-blade fan. The scroll casing has an intake opening and an outlet opening at a scroll end, in a downstream scroll casing portion. The scroll casing expands such that a flow passage cross-sectional area on the airflow downstream side is larger than that on an airflow upstream side. A ratio of a blade length to a diameter of the multi-blade fan is greater than or equal to 0.12, and an outer scroll casing radius, relative to the rotational axis, increases as a logarithmic spiral, its expansion angle being from 3.3° to 4.8°.
    • 离心式多叶片风扇具有围绕旋转轴的多个叶片,并沿着旋转轴吸入空气,然后大致垂直于旋转轴吹送空气以减少风噪声。 涡旋壳体包围多叶片风扇并且限定用于引导从多叶片风扇吹出的空气的涡旋状气流通道。 涡旋壳体在下游涡旋壳体部分中具有在涡旋端处的进气开口和出口。 涡旋壳体膨胀,使得气流下游侧的流路横截面积大于气流上游侧的流路截面积。 叶片长度与多叶片风扇的直径的比率大于或等于0.12,并且相对于旋转轴线的外涡旋壳体半径随着对数螺旋而增加,其膨胀角为3.3°至 4.8°。
    • 5. 发明申请
    • Field Effect Transistor
    • 场效应晶体管
    • US20100155779A1
    • 2010-06-24
    • US11992755
    • 2006-09-28
    • Yasuhiro MuraseKazuki OtaYasuhiro OkamotoKouji MatsunagaHironobu Miyamoto
    • Yasuhiro MuraseKazuki OtaYasuhiro OkamotoKouji MatsunagaHironobu Miyamoto
    • H01L29/78
    • H01L29/7787H01L29/2003H01L29/405H01L29/66462
    • In a field effect transistor, a Group III nitride semiconductor layer structure containing a hetero junction, a source electrode 101 and a drain electrode 103 formed apart from each other over the Group III nitride semiconductor layer structure, and a gate electrode 102 disposed between these electrodes, are provided. Over the surface of the Group III nitride semiconductor layer structure, a SiO2 film 122 containing oxygen as a constitutive element is provided, in contact with both side faces of the gate electrode 102. Over the surface of the Group III nitride semiconductor layer structure, a SiN film 121 is provided so as to cover the region between the SiO2 film 122 and the source electrode 101, and the region between the SiO2 film 122 and the drain electrode 103. The SiN film 121 is composed of a material different from that composing the SiO2 film 122, and contains nitrogen as a constitutive element.
    • 在场效应晶体管中,包含异质结的III族氮化物半导体层结构,在III族氮化物半导体层结构上彼此分开形成的源电极101和漏极103以及设置在这些电极之间的栅极102 ,提供。 在III族氮化物半导体层结构的表面上,提供含有氧作为构成元素的SiO 2膜122,与栅电极102的两个侧面接触。在III族氮化物半导体层结构的表面上, SiN膜121被设置为覆盖SiO 2膜122和源电极101之间的区域以及SiO 2膜122和漏电极103之间的区域。SiN膜121由与不同于构成 SiO 2膜122,并且含有氮作为构成元素。
    • 7. 发明授权
    • Method for fabricating probe tip portion composed by coaxial cable
    • 用于制造由同轴电缆组成的探针尖端部分的方法
    • US06400168B2
    • 2002-06-04
    • US09886033
    • 2001-06-22
    • Kouji MatsunagaHirobumi InoueMasao TanehashiToru TauraMasahiko NikaidouYuuichi YamagishiSatoshi Hayakawa
    • Kouji MatsunagaHirobumi InoueMasao TanehashiToru TauraMasahiko NikaidouYuuichi YamagishiSatoshi Hayakawa
    • G01R3102
    • G01R1/06738G01R1/06772Y10T29/49123
    • In a tip portion structure basically having a substrate, a plate spring, and a ground block, the substrate is attached to a signal line on a back surface of the substrate and is contacted on the tip with the signal electrode of the DUT placed on a device stage. The plate spring is made of a resilient material, placed on the front side of the substrate, and positioned to apply a pressure to the substrate. The ground block is positioned between the signal line and the device stage functioned as a ground electrode of the DUT. Alternatively, the tip portion structure further may have a ground plate or a ground surface formed of a conductive thin plate covering entirely the front surface of the substrate, and shaped to surround the signal line in cooperation with the ground block. A plurality of the signal lines may be arranged in parallel on the same plane of the substrate. Another tip portion structure is based on a coaxial cable to be cut from the center at a plane perpendicular to the axial direction thereof along one or more oblique plane. A metal ring fitted over a periphery of the coaxial outer conductor may be used.
    • 在基本上具有基板,板簧和接地块的尖端部分结构中,将基板附着到基板的背面上的信号线上,并将其与被放置在基板上的DUT的信号电极接触 设备阶段 板簧由弹性材料制成,放置在基片的正面,并定位成对基片施加压力。 接地块位于作为DUT接地电极的信号线和器件级之间。 或者,尖端部分结构还可以具有由完全覆盖基板的前表面的导电薄板形成的接地板或接地表面,并且成形为与接地块一起包围信号线。 多个信号线可以平行布置在基板的同一平面上。 另一个尖端部分结构是基于同轴电缆,沿着一个或多个倾斜平面在垂直于其轴向方向的平面处从中心切割。 可以使用安装在同轴外导体周边上的金属环。