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    METHOD FOR MANUFACTURING MASTER, METHOD FOR MANUFACTURING TRANSFERRED OBJECT, METHOD FOR MANUFACTURING REPLICA MASTER, AND APPARATUS FOR MANUFACTURING MASTER
    1.
    发明申请
    METHOD FOR MANUFACTURING MASTER, METHOD FOR MANUFACTURING TRANSFERRED OBJECT, METHOD FOR MANUFACTURING REPLICA MASTER, AND APPARATUS FOR MANUFACTURING MASTER 有权

    公开(公告)号：US20250147422A1

    公开(公告)日：2025-05-08

    申请号：US18837799

    申请日：2023-03-28

    Applicant: DEXERIALS CORPORATION

    Inventor： Masanao KIKUCHI

    IPC: G03F7/20 ,  G03F7/00 ,  G03F7/24

    Abstract: A pattern of a concave-convex structure having any three-dimensional shape is formed on an outer circumferential surface of a master with high accuracy. Provided is a method for manufacturing a master, including the steps of forming a resist layer on an outer circumferential surface of a base member, dividing an input image in which an object having a three-dimensional shape is two-dimensionally drawn into a plurality of small regions, determining in a stepwise manner an intensity of laser light to be radiated to each of the small regions based on a contrasting density of a partial image of the object in each of the small regions in which the object is included, and generating an exposure control signal corresponding to the object based on a result of the determining of the intensity of the laser light, radiating the laser light to the resist layer based on the exposure control signal, thereby forming a resist pattern that changes in depth in accordance with the contrasting density of the partial image, and forming a concave-convex pattern corresponding to the three-dimensional shape of the object on the outer circumferential surface of the base member using the resist layer as a mask.

    OPTICAL BODY, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING OPTICAL BODY
    3.
    发明申请
    OPTICAL BODY, DISPLAY DEVICE, AND METHOD FOR MANUFACTURING OPTICAL BODY 有权

    公开(公告)号：US20220003897A1

    公开(公告)日：2022-01-06

    申请号：US17470339

    申请日：2021-09-09

    Applicant: DEXERIALS CORPORATION

    Inventor： Shunichi KAJIYA ,  Hideki TERASHIMA ,  Yutaka MURAMOTO ,  Masanao KIKUCHI ,  Takaaki OTOWA

    IPC: G02B1/118 ,  B29C33/42 ,  G02B1/12

    Abstract: There is provided an optical body with improved antireflection capability, a display device, and a method for manufacturing an optical body, the optical body including: a first concave-convex structure formed on a surface of a base material;
    and a second concave-convex structure superimposed on the first concave-convex structure. An average concave-convex period of the first concave-convex structure is larger than a wavelength in a visible light region, an average concave-convex period of the second concave-convex structure is less than or equal to the wavelength in the visible light region, and projecting parts of the second concave-convex structure extend in a direction normal to a flat plane of the base material.

    EMBOSSED FILM, SHEET FILM, TRANSFER COPY, AND METHOD FOR PRODUCING EMBOSSED FILM
    7.
    发明申请
    EMBOSSED FILM, SHEET FILM, TRANSFER COPY, AND METHOD FOR PRODUCING EMBOSSED FILM 有权

    公开(公告)号：US20210132493A1

    公开(公告)日：2021-05-06

    申请号：US17144670

    申请日：2021-01-08

    Applicant: DEXERIALS CORPORATION

    Inventor： Yutaka MURAMOTO ,  Masanao KIKUCHI

    IPC: G03F7/00 ,  B29C59/04 ,  B05D1/28 ,  B29C59/02

    Abstract: There is provided an embossed film in which the frequency of loss of concavities is smaller, the embossed film including: a film main body; and a plurality of concavities formed on a surface of the film main body. A diameter of an opening surface of the concavity is larger than a visible light wavelength, an arrangement pattern of the concavities has periodicity along a length direction of the film main body, and the difference between the rate of loss of concavities in one end portion of the film main body and the rate of loss of concavities in the other end portion of the film main body is 10 ppm or less.

    MASTER, TRANSFERRED OBJECT, AND METHOD OF PRODUCING MASTER
    9.
    发明申请
    MASTER, TRANSFERRED OBJECT, AND METHOD OF PRODUCING MASTER 有权

    公开(公告)号：US20210053273A1

    公开(公告)日：2021-02-25

    申请号：US16955628

    申请日：2018-12-18

    Applicant: DEXERIALS CORPORATION

    Inventor： Masanao KIKUCHI ,  Hiroshi TAZAWA ,  Asahiko NOGAMI ,  Kazuya HAYASHIBE

    IPC: B29C59/04 ,  B29C33/38 ,  C23F1/02

    Abstract: Provided are a master in which a more complicated microstructure is formed, a transferred object obtained by using the master, and a method of producing the master. A plurality of concave-convex groups each including a plurality of concavities or convexities are provided on a base material apart from each other. Average widths of areas occupied by the concavities or convexities at a surface of the base material are smaller than or equal to a wavelength belonging to a visible light band. Formed lengths of the concavities or convexities from the surface of the base material in each of the concave-convex groups each belong to any of at least two or more groups having different central values.

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