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    • 2. 发明授权
    • Illuminant, and, electron beam detector, scanning electron microscope and mass spectroscope each including the same
    • 光源,和电子束检测器,扫描电子显微镜和质谱仪均包括在内
    • US07030388B2
    • 2006-04-18
    • US10679517
    • 2003-10-07
    • Yasufumi TakagiMinoru NiigakiShoichi UchiyamaMinoru KondoItaru Mizuno
    • Yasufumi TakagiMinoru NiigakiShoichi UchiyamaMinoru KondoItaru Mizuno
    • H01J37/244
    • H01J49/025H01J37/244H01J2237/2445
    • The present invention relates to an illuminant, etc., having a high response speed and a high luminous intensity. The illuminant comprises a substrate and a nitride semiconductor layer provided on one surface of the substrate. The nitride semiconductor layer emits fluorescence in response to incidence of electrons. At least part of the emitted fluorescence passes through the substrate, and then exits from the other surface of the substrate. Generation of the fluorescence is caused by incidence of electrons onto a quantum well structure of the nitride semiconductor layer and recombination of pairs of electrons and holes generated due to electron incidence, and the response speed of fluorescence generation is on the order of nanoseconds or less. Also, the luminous intensity of the fluorescence becomes equivalent to that of a conventional P47 fluorescent substance. Namely, the illuminant has a response speed and a luminous intensity that are sufficient for adaptation to scanning electron microscopes and mass spectroscopes.
    • 本发明涉及具有高响应速度和高发光强度的发光体等。 光源包括衬底和设置在衬底的一个表面上的氮化物半导体层。 氮化物半导体层响应于电子的入射发射荧光。 发射的荧光的至少一部分通过衬底,然后从衬底的另一表面离开。 荧光的产生是由于电子发射到氮化物半导体层的量子阱结构和由于电子入射而产生的电子和电子对的复合而引起的,并且荧光产生的响应速度在数量级以下。 此外,荧光的发光强度等同于常规P47荧光物质的发光强度。 即,发光体具有对扫描电子显微镜和质谱进行适应的响应速度和发光强度。
    • 10. 发明授权
    • Air flow meter
    • 空气流量计
    • US06220090B1
    • 2001-04-24
    • US09253539
    • 1999-02-22
    • Yasushi KohnoRyo NagasakaMinoru KondoMakoto TsunekawaTomoyuki Takiguchi
    • Yasushi KohnoRyo NagasakaMinoru KondoMakoto TsunekawaTomoyuki Takiguchi
    • G01F500
    • G01F5/00G01F1/6842
    • An air flow meter disposed in an intake pipe has a bypass member having a U-shaped bypass passage, into which part of air flowing through the intake pipe is introduced. An outflow port disposed at a downstream air side of the bypass passage is surrounded at its three sides by opposing surfaces of a pair of side walls and a wall surface of a partition wall disposed at “an upstream air side of the outflow port”. Further, the outflow port is opened in an air flow direction in the bypass passage and in an air flow direction in the air flow passage. Therefore, air flowing through the bypass passage is partially discharged into the air flow passage through the outflow port gradually before joining main air flow in the air flow passage, thereby restricting decrease in air flow velocity and occurrence of turbulence in the bypass passage.
    • 设置在进气管中的空气流量计具有具有U形旁通通路的旁通部件,导入通过进气管的空气的一部分被引入。 设置在旁通通道的下游侧的流出口在其三侧被一对侧壁和设置在“流出口”的上游侧空气侧的分隔壁的壁面的相对面相对地包围。 此外,流出口在旁通通路中的空气流动方向和空气流动通道中的空气流动方向上打开。 因此,流入旁路通路的空气在与空气流路连通的主空气流之前逐渐地通过流出口排出到空气流路内,从而限制旁路通路的空气流速的减小和紊流的发生。