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    • 16. 发明授权
    • Photomultiplier having a photocathode comprised of semiconductor material
    • 具有由半导体材料构成的光电阴极的光电倍增管
    • US5710435A
    • 1998-01-20
    • US580057
    • 1995-12-20
    • Minoru NiigakiToru HirohataTomoko SuzukiMasami Yamada
    • Minoru NiigakiToru HirohataTomoko SuzukiMasami Yamada
    • H01J1/34H01J43/08H01L29/06H01L29/12
    • H01J1/34H01J43/08H01J2201/3423
    • A photoelectric emission surface which is excellent in stability and reproducibility of photoelectric conversion characteristics and has a structure capable of obtaining a high photosensitivity is provided. A predetermined voltage is applied between an upper surface electrode and a lower surface electrode by a battery. Upon application of this voltage, a p-n junction formed between a contact layer and an electron emission layer is reversely biased. A depletion layer extends from the p-n junction into the photoelectric emission surface, and an electric field is formed in the electron emission layer and a light absorbing layer in a direction for accelerating photoelectrons. When incident light is absorbed in the light absorbing layer to excite photoelectrons, the photoelectrons are accelerated by the electric field toward the emission surface. The photoelectrons obtain an energy upon this electric field acceleration, and are transited, in the electron emission layer, to a conduction band at a higher energy level, and emitted into a vacuum.
    • 提供了具有优异的光电转换特性的稳定性和再现性并且具有能够获得高光敏性的结构的光电发射表面。 通过电池在上表面电极和下表面电极之间施加预定的电压。 在施加该电压时,形成在接触层和电子发射层之间的p-n结被反向偏置。 耗尽层从p-n结延伸到光电发射表面,并且在电子发射层和在光子电子加速方向上的光吸收层形成电场。 当入射光吸收在光吸收层中以激发光电子时,光电子通过电场被加速到发射表面。 光电子在该电场加速下获得能量,并且在电子发射层中转移到更高能级的导带,并发射到真空中。
    • 19. 发明授权
    • Method for manufacturing bottom valve seat
    • 制造底阀座的方法
    • US4070895A
    • 1978-01-31
    • US721987
    • 1976-09-10
    • Masami YamadaYuji Soeda
    • Masami YamadaYuji Soeda
    • B21D53/10F16F9/34
    • B21D53/10F16F9/34Y10T29/49306
    • A method for manufacturing a bottom valve seat for use in a hydraulic damper is provided including the steps of: punching out a circular blank from a flat plate of a given thickness to prepare a circular blank having given dimensions; drawing the blank into a cup-shaped work having a circumferential flange portion; forming a cylindrical wall in the cup-shaped work thus provided, with the wall having a given length; and pressing the central portion of a bottom portion of the cup-shaped work downwards or internally, thereby forming an annular flat portion along the circumferential edge of the bottom portion; cutting the flange portion into given dimensions; and punching a through hole in the flange portion. In this bottom valve seat, the flange portion has a flat surface and at least one oil passage is provided in the portion of the valve seat, which is opposite to the bottom portion.
    • 一种用于制造用于液压阻尼器的底阀座的方法包括以下步骤:从给定厚度的平板上冲出圆形坯料以制备具有给定尺寸的圆形坯料; 将坯料拉成具有圆周凸缘部分的杯形工件; 在如此提供的杯形工件中形成圆柱形壁,壁具有给定的长度; 并且将杯形作业的底部的中心部分向下或向内按压,从而沿底部的周缘形成环形平坦部分; 将凸缘部分切割成给定的尺寸; 并且在凸缘部分中冲孔。 在该底阀座中,凸缘部具有平坦表面,并且在阀座的与底部相对的部分中设置有至少一个油通道。