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    • 72. 发明申请
    • IRON-BASED SINTERED ALLOY FOR VALVE SEAT, AND VALVE SEAT FOR INTERNAL COMBUSTION ENGINE
    • 用于阀座的基于铁的烧结合金和用于内燃机的阀座
    • US20110023808A1
    • 2011-02-03
    • US12935408
    • 2009-03-25
    • Kenichi SatoHiroshi OshigeTakeshi Haniu
    • Kenichi SatoHiroshi OshigeTakeshi Haniu
    • F01L3/00B32B15/02
    • F01L3/02C22C1/0491C22C19/07C22C33/0285C22C38/44C22C38/52F01L2101/00
    • It is an object of the present invention to provide a valve seat product in which the amount of hard particles added to improve the wear resistance of a valve seat of an internal combustion engine is increased, and is excellent in the mechanical strength and machinability. In order to achieve the object, an iron-based sintered alloy material for a valve seat is employed which is made to contain a first hard particle having an average primary particle diameter of 5 to 20 μm and a second hard particle having an average primary particle diameter of 20 to 150 μm in a texture, wherein a particle size distribution curve measured by laser diffraction scattering analysis has N peaks (N is an integer equal to or larger than 2) and when particle diameters corresponding to the peak top positions are denoted as DT1 to DTN, a peak top particle diameter difference between neighboring DTn-1 and DTn(|DTn-1−DTn|: n is an integer equal to or larger than 2 and equal to or smaller than N) is in the range of 15 to 100 μm in at least one neighboring DTn-1 and DTn; and the total area ratio occupied by both of the first hard particle and the second hard particle constituting the mixed hard particle in the texture of the iron-based sintered alloy is 10 to 60% by area.
    • 本发明的目的是提供一种阀座产品,其中增加了用于提高内燃机的阀座的耐磨性的添加的硬质颗粒的量,并且机械强度和机械加工性优异。 为了达到上述目的,使用了一种用于阀座的铁基烧结合金材料,其被制成含有平均一次粒径为5〜20μm的第一硬质粒子和具有平均一次粒子的第二硬质粒子 直径为20〜150μm,其中通过激光衍射散射分析测量的粒度分布曲线具有N个峰(N是等于或大于2的整数),并且当与峰顶位置相对应的粒径被表示为 DT1〜DTN,相邻的DTn-1与DTn(| DTn-1-DTn |:n为2以上且等于或小于N的整数)之间的顶峰粒径差为15 在至少一个相邻的DTn-1和DTn中至100μm; 并且构成混合硬质粒子的第一硬质粒子和构成混合硬质粒子的第二硬质粒子的总面积比在铁基烧结合金的织构中为10〜60%。
    • 74. 发明授权
    • Zoom lens and imaging apparatus
    • 变焦镜头和成像设备
    • US07817348B2
    • 2010-10-19
    • US12413031
    • 2009-03-27
    • Kenichi Sato
    • Kenichi Sato
    • G02B15/14G02B17/00
    • G02B15/173
    • A zoom lens is provided and includes: in order from an object side of the zoom lens, a first lens group adapted to be fixed during power-varying of the zoom lens, the first lens group having a positive power and including in order from the object side, a negative lens, a reflecting member that bends an optical path thereof, and a biconvex lens of a positive lens made of a resin material and having at least one aspherical surface; a second lens group adapted to move during the power-varying, the second lens group having a negative power and including two lenses; a third lens group adapted to be fixed during the power-varying and including one positive lens; and a fourth lens group adapted to move during the power-varying and during focusing of the zoom lens, the fourth lens having a positive power and including in order from the object side, a cemented lens having a positive power, and a negative lens made of a resin material and having at least one aspherical surface and a concave surface on an image side of the fourth lens.
    • 提供一种变焦透镜,包括:从变焦透镜的物体侧开始,适于在变焦透镜的电力变化期间被固定的第一透镜组,第一透镜组具有正光焦度并且从 物镜侧,负透镜,弯曲其光路的反射构件和由树脂材料制成并具有至少一个非球面的正透镜的双凸透镜; 适于在功率变化期间移动的第二透镜组,第二透镜组具有负光焦度并且包括两个透镜; 适于在功率变化期间固定并包括一个正透镜的第三透镜组; 以及第四透镜组,其适于在变焦镜头期间的动力变化和聚焦期间移动,所述第四透镜具有正光焦度并且从物体侧依次包括具有正光焦度的胶合透镜和制成的负透镜 的树脂材料,并且在第四透镜的像侧具有至少一个非球面和凹面。
    • 75. 发明申请
    • COMMUNICATION TERMINAL APPARATUS
    • 通信终端设备
    • US20100149045A1
    • 2010-06-17
    • US12162837
    • 2007-01-30
    • Hironori KikuchiKenichi SatoNobuaki Tanaka
    • Hironori KikuchiKenichi SatoNobuaki Tanaka
    • H01Q1/24
    • H04B1/3838H01Q1/245H01Q5/371H01Q5/378H01Q9/42
    • A problem of the invention is to provide a small-size communication terminal apparatus capable of reducing an SAR and also widening a band of an antenna and further achieving thinning.The communication terminal apparatus has a substrate (13) disposed inside a housing, a power feeding part (12) disposed in the substrate (13), a monopole antenna (11) having plural elements of multi-frequency sharing, the monopole antenna for feeding power by electrically connecting one end to the power feeding part, and a ground wire (14) electrically connected to a wireless ground of the substrate (13), and the monopole antenna (11) having the plural elements is arranged in a direction vertical to a surface of the substrate (13) and in a back surface direction of the housing so as to be opposed to a human body at the time of a call.
    • 本发明的一个问题是提供一种小型通信终端装置,其能够减少SAR并扩大天线的频带并进一步实现减薄。 通信终端装置具有设置在壳体内的基板(13),设置在基板(13)中的供电部(12),具有多个多频分量的单极天线(11),用于馈送的单极天线 通过将一端电连接到馈电部分的电力和与衬底(13)的无线接地电连接的接地线(14),并且具有多个元件的单极天线(11)沿垂直于 基板(13)的表面和壳体的后表面方向上,以便在通话时与人体相对。
    • 77. 发明授权
    • Portable wireless unit
    • 便携式无线单元
    • US07609212B2
    • 2009-10-27
    • US11718165
    • 2005-11-08
    • Kenichi SatoYukinari TakahashiSatoshi Watanabe
    • Kenichi SatoYukinari TakahashiSatoshi Watanabe
    • H01Q1/24
    • H01Q21/29H01Q1/243H01Q9/16H04M1/0235
    • A portable wireless unit having high antenna performance, which comprises: a first case having a first antenna element, a second antenna element and a second feeding section; a second case having a third antenna element, a third feeding section and a circuit board provided with a ground pattern; and a coupling section consisting of first and second electrically connected conductive coupling elements and coupling the first case and the second case to be extended and housed freely. The second coupling element is provided in the first case while being connected electrically with the first antenna element, the first coupling element is provided in the second case while being connected electrically with the first feeding section, and the first antenna element, the coupling section, and the ground pattern are operated as a dipole antenna.
    • 一种具有高天线性能的便携式无线单元,包括:第一壳体,具有第一天线元件,第二天线元件和第二馈电部分; 第二壳体,具有第三天线元件,第三馈电部分和设置有接地图案的电路板; 以及耦合部分,其由第一和第二电连接的导电耦合元件组成,并且将第一壳体和第二壳体联接以自由地延伸和容纳。 第二耦合元件设置在与第一天线元件电连接的第一壳体中,第一耦合元件设置在第二壳体中,同时与第一馈电部分电连接,第一天线元件,耦合部分, 并且接地图案作为偶极天线工作。
    • 78. 发明授权
    • Zoom lens and imaging apparatus
    • 变焦镜头和成像设备
    • US07602558B2
    • 2009-10-13
    • US12167675
    • 2008-07-03
    • Kenichi Sato
    • Kenichi Sato
    • G02B15/14
    • G02B15/173G02B5/04
    • A zoom lens is provided and includes: in order from the object side, a first lens group having a positive power and including in order from the object side, a negative lens, a reflecting member that bends an optical path by substantially 90°, and a positive lens having biconvex shape which has at least one aspherical surface; a second lens group having a negative power and including two lenses; a third lens group having a positive power; and a fourth lens group having a positive power and including in order from the object side, a cemented lens having a negative power and a positive lens having a meniscus shape which has at least one aspherical surface and a convex surface on the object side. The zoom lens is adapted to change a magnification thereof by moving the second lens group and forth lens group, and satisfies specific conditional equations.
    • 提供一种变焦透镜,其包括:从物体侧开始,具有正光焦度并且从物体侧起依次包括第一透镜组,负透镜,使光路弯曲大致90°的反射部件,以及 具有至少一个非球面的具有双凸形状的正透镜; 具有负功率并包括两个透镜的第二透镜组; 具有正功率的第三透镜组; 以及第四透镜组,其具有正的光焦度并且从物体侧依次包括具有负光焦度的胶合透镜和具有弯月面形状的正透镜,所述弯月面在物体侧具有至少一个非球面和凸面。 变焦镜头适于通过移动第二透镜组和透镜组来改变其放大率,并且满足特定的条件方程式。
    • 79. 发明授权
    • Imaging Lens
    • 成像镜头
    • US07589918B2
    • 2009-09-15
    • US11860384
    • 2007-09-24
    • Kenichi Sato
    • Kenichi Sato
    • G02B9/34
    • G02B13/004G02B9/34
    • A single focus imaging lens comprises: a front lens group including one or two lenses and having a positive refractive power as a whole; a rear lens group including two or three lenses and having a negative refractive power as a whole; and a focusing lens, disposed between the front lens group and the rear lens group, that has a positive refractive power and moves on an optical axis for adjusting focus, wherein the following conditional expression is satisfied: 1.0
    • 单焦点成像透镜包括:包括一个或两个透镜并且整体具有正折射光焦度的前透镜组; 包括两个或三个透镜并且整体具有负折射光焦度的后透镜组; 以及设置在前透镜组和后透镜组之间的聚焦透镜,其具有正折射光焦度并在光轴上移动以调整焦点,其中满足以下条件表达式:<?in-line-formula description = “直线公式”end =“lead”?> 1.0 其中f:焦距 的单焦点成像镜头; FL:聚焦镜头的焦距。