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    • 86. 发明申请
    • PIEZOELECTRIC FILM ELEMENT, AND MANUFACTURING METHOD OF THE SAME AND PIEZOELECTRIC FILM DEVICE
    • 压电薄膜元件及其制造方法及压电薄膜器件
    • US20110187237A1
    • 2011-08-04
    • US13018693
    • 2011-02-01
    • Kazufumi SUENAGAKenji ShibataKazutoshi WatanabeAkira Nomoto
    • Kazufumi SUENAGAKenji ShibataKazutoshi WatanabeAkira Nomoto
    • H01L41/047
    • H01L41/187H01L41/0477H01L41/0805H01L41/094H01L41/1873H01L41/29H01L41/316
    • A piezoelectric film element is provided, which is capable of improving piezoelectric properties, having on a substrate at least a lower electrode, a lead-free piezoelectric film, and an upper electrode, wherein at least the lower electrode out of the lower electrode and the upper electrode has a crystal structure of a cubic crystal system, a tetragonal crystal system, an orthorhombic crystal system, a hexagonal crystal system, a monoclinic crystal system, a triclinic crystal system, a trigonal crystal system, or has a composition in which one of these crystals exists or two or more of them coexist, and crystal axes of the crystal structure are preferentially oriented to a specific axis smaller than or equal to two axes of these crystals, and a ratio c/a′ is set in a range of 0.992 or more and 0.999 or less, which is the ratio of a crystal lattice spacing c in a direction of a normal line to the substrate surface, with respect to a crystal lattice spacing a′ whose inclination angle from the substrate surface is in a range of 10° or more and 30° or less.
    • 提供一种能够改善压电性能的压电膜元件,其在基板上至少具有下电极,无铅压电膜和上电极,其中至少下电极中的下电极和 上电极具有立方晶系,四方晶系,正交晶系,六方晶系,单斜晶系,三斜晶系,三
      晶体系的晶体结构,或其组成为: 这些晶体存在或其中的两种以上共存,并且晶体结构的晶轴优先取向小于或等于这些晶体的两个轴的特定轴,并且将比率c / a'设定在0.992的范围内 以上且0.999以下,其是法线方向的晶格间距c与基板表面的比率,相对于晶格间距a',其倾斜角 从基板表面的厚度为10°以上且30°以下的范围。
    • 89. 发明授权
    • Optical displacement-detecting mechanism and probe microscope using the same
    • 光学位移检测机构和探针显微镜使用相同
    • US07787133B2
    • 2010-08-31
    • US11840549
    • 2007-08-17
    • Masato IyokiHiroyoshi YamamotoKazutoshi Watanabe
    • Masato IyokiHiroyoshi YamamotoKazutoshi Watanabe
    • G01B11/14
    • G01Q20/02
    • The optical displacement-detecting mechanism has: a light source for irradiating a target for measurement with light; a light source-driving circuit for driving the light source; an optical detector made from a semiconductor for receiving light after the irradiation of the target for measurement by the light source and converting the light into an electric signal thereby to detect an intensity of light; and an amplifier including a current-voltage conversion circuit for performing current-to-voltage conversion on a detection signal of the optical detector with a predetermined amplification factor. In the optical displacement-detecting mechanism, a light source having a spectrum half width of 10 nm or larger is used, whereby the light source can be driven with an output power of 2 mW or larger without generating mode hop noise and optical feedback noise.
    • 光学位移检测机构具有:用光照射被测物的光源; 用于驱动光源的光源驱动电路; 由半导体制成的光检测器,用于在由光源照射测量目标物之后接收光,并将光转换成电信号从而检测光的强度; 以及放大器,其包括用于以预定的放大系数对光学检测器的检测信号进行电流 - 电压转换的电流 - 电压转换电路。 在光学位移检测机构中,使用光谱半宽度为10nm以上的光源,由此可以以2mW以上的输出功率驱动光源,而不产生模式跳噪声和光反馈噪声。