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    • 83. 发明授权
    • Radiation applying apparatus
    • 辐射施加装置
    • US06826254B2
    • 2004-11-30
    • US10285441
    • 2002-11-01
    • Kazumasa MiharaYuichiro KaminouAkira Ishibashi
    • Kazumasa MiharaYuichiro KaminouAkira Ishibashi
    • G21K500
    • H01J35/04A61B6/4429A61N5/01A61N5/10G21G1/12G21H5/02H01J2235/186
    • An x-ray treatment apparatus includes an x-ray generating device, a head unit, a manipulator and a microwave source. The x-ray generating device produces x-rays, by letting electrons, which have been emitted from an electron gun, be accelerated by a linear accelerator and strike a target. The acceleration of electrons is effected by microwaves. The x-ray generating device is accommodated in the head unit. The head unit is attached to a distal end portion of the manipulator. The manipulator positions the head unit such that x-rays emitted from the head unit may be applied to a part for medical treatment in a patient. The microwave source is disposed at a proximal end portion of the manipulator. Microwaves are propagated from the microwave source to the accelerator through a waveguide.
    • X射线治疗装置包括X射线产生装置,头部单元,机械手和微波源。 X射线产生装置通过使从电子枪发射的电子被线性加速器加速并产生目标而产生X射线。 电子的加速由微波进行。 X射线产生装置容纳在头单元中。 头单元附接到操纵器的远端部分。 操纵器定位头单元,使得从头单元发射的x射线可以施加到患者体内用于医疗的部件。 微波源设置在操纵器的近端部分。 微波通过波导从微波源传播到加速器。
    • 84. 发明授权
    • Semiconductor light emitting device with II-VI group semiconductor contact layer containing alkali metal impurity, method of producing same, and optical device including same
    • 具有含有碱金属杂质的II-VI族半导体接触层的半导体发光器件及其制造方法以及包括其的光学器件
    • US06414975B1
    • 2002-07-02
    • US09048048
    • 1998-03-26
    • Akira IshibashiYoshinori HatanakaToru AokiMasaharu Nagai
    • Akira IshibashiYoshinori HatanakaToru AokiMasaharu Nagai
    • H01S500
    • H01L33/40H01L33/28H01L33/285
    • The invention provides a semiconductor light emitting device whose operating voltage can be easily reduced, a method of producing the same, and an optical device. An n-type clad layer, a first guide layer, an active layer, a second guide layer, a p-type clad layer, a first semiconductor layer, and a second semiconductor layer of ZnSe are successively grown on an n-type substrate. An alkali compound layer of Na2Se is then formed thereon. Subsequently, a heat treatment is performed by means of irradiation of an excimer laser beam so that at least a part of the second semiconductor layer and at least a part of the alkali compound layer are altered thereby forming a contact layer. Furthermore, a p-side electrode is formed on the contact layer. The contact layer contains an alkali metal serving as a p-type impurity so that the contact layer has a low electric resistance thereby achieving a reduction in the operating voltage and thus a reduction in the operating power. As a result of the reduction in the operating power, the device life is improved.
    • 本发明提供一种可以容易地降低其工作电压的半导体发光器件,其制造方法和光学器件。 在n型衬底上依次生长n型覆盖层,第一引导层,有源层,第二引导层,p型覆盖层,第一半导体层和第二半导体层。 然后在其上形成Na 2 Se的碱性化合物层。 随后,通过照射准分子激光束进行热处理,使得第二半导体层的至少一部分和碱性化合物层的至少一部分被改变,从而形成接触层。 此外,在接触层上形成p侧电极。 接触层含有用作p型杂质的碱金属,使得接触层具有低电阻,从而实现工作电压的降低,从而降低工作电力。 由于操作功率的降低,设备寿命得到改善。