MANUFACTURING METHOD OF THE FUNCTIONAL MEMBRANE AND THE FUNCTIONAL MEMBRANE

    公开(公告)号:US20240199477A1

    公开(公告)日:2024-06-20

    申请号:US18536370

    申请日:2023-12-12

    Inventor: Kazunari TADA

    CPC classification number: C03C15/00 G02B1/18

    Abstract: A manufacturing method of a functional membrane which contains an inorganic material and has a fine uneven structure on a surface thereof, includes a single mask forming step and an etching step, wherein a plurality of protruding portions which constitute the fine uneven structure are formed in a stair shape having one or more stairs in a vertical cross-sectional shape of the functional membrane along a thickness direction of the functional membrane, when Mohs hardness of the inorganic material is denoted as X and the number of the stairs of the protruding portions is denoted as Y, following formula (I) is satisfied, and an average height from the lowest bottom surface of the protruding portions of the lowermost stair to the highest top surface of the protruding portions of the uppermost stair is 1 μm or less.







    10


    X
    ×
    Y





    Formula



    (
    I
    )

    METHOD FOR PRODUCING PIEZOELECTRIC ELEMENT, AND PIEZOELECTRIC ELEMENT

    公开(公告)号:US20210187550A1

    公开(公告)日:2021-06-24

    申请号:US16076011

    申请日:2017-02-15

    Abstract: There is provided a method for producing a piezoelectric element, which allows for forming a columnar microstructure with a small width and a high aspect ratio. The method is intended to produce a piezoelectric element 102 including a three-dimensional structure group 20 having a plurality of the three-dimensional structures 21 and 321 formed in a plate-like or columnar shape with a width of 30 μm or less and a height of 80 μm or more. The production method includes a first process of fabricating a plurality of plate-like or columnar precursor shapes 82a on a bulk material 81 formed of a Pb-based piezoelectric material, and a second process of reducing the width of the precursor shapes 82a to a predetermined value using an etching liquid.

    PIEZOELECTRIC ELEMENT MANUFACTURING METHOD
    5.
    发明申请

    公开(公告)号:US20190305209A1

    公开(公告)日:2019-10-03

    申请号:US16302817

    申请日:2017-04-25

    Abstract: The present invention provides a piezoelectric element manufacturing method. The manufacturing method is a method of manufacturing a piezoelectric element comprising a piezoelectric body composite in which a piezoelectric body configured from a Pb-based piezoelectric material and a resin are alternately arranged, and comprises a step of etching, using an etching liquid, a plurality of parallel piezoelectric body segments formed by dicing. The etching liquid comprises a liquid which contains 0.1 to 20 mass % of hexafluorosilicic acid.

    OPTICAL ELEMENT AND OPTICAL ELEMENT PRODUCTION METHOD

    公开(公告)号:US20210124091A1

    公开(公告)日:2021-04-29

    申请号:US17251503

    申请日:2019-06-07

    Abstract: Provided is an optical element having particularly excellent salt water resistance and capable of exhibiting a photocatalytic effect. An optical element 100 is obtained by forming a multi-layer coating MC having two or more layers on a glass substrate GL that is an optically-transparent base plate. The multi-layer coating MC has at least one low-refractive-index layer L and at least one high-refractive-index layer H, and a topmost layer 10 farthest from the glass substrate GL is the low-refractive-index layer L. The high-refractive-index layer H adjacent to the topmost layer 10 is a functional layer 20 containing, as a main component, a metal oxide having a photocatalytic function. The topmost layer 10 has a plurality of pores 30 that partially expose a surface of the functional layer 20.

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