知搜-全球专利检索

  1. Login
  2. Sign Up

Search Results

23 records (took 0.02 seconds)

    Method for producing optical member, and optical member
    1.
    发明授权
    Method for producing optical member, and optical member 有权

    公开(公告)号：US10981352B2

    公开(公告)日：2021-04-20

    申请号：US16094523

    申请日：2017-03-06

    Applicant: Sharp Kabushiki Kaisha

    Inventor： Hidekazu Hayashi ,  Tokio Taguchi ,  Kenichiro Nakamatsu ,  Hisashi Maruyama ,  Nobuaki Nakao ,  Suguru Aoki

    IPC: B32B3/30 ,  B32B27/08 ,  G02B1/118 ,  G02B1/14 ,  G02B1/18

    Abstract: The method for producing an optical member of the present invention includes: Process (1) of applying a first resin to a substrate; Process (2) of applying a second resin to at least one of the first resin and a die; Process (3) of pushing the substrate to the die with the first resin and the second resin in between to form a resin layer including on a surface thereof an uneven structure; and Process (4) of curing the resin layer to provide a polymer layer. The die includes a surface after release treatment with a fluorine release agent. The first resin contains a resin component, and the resin component contains predetermined amounts of a (meth)acrylamide compound and a urethane prepolymer containing six or more functional groups. The second resin contains predetermined amounts of a reactive group-containing monomer, a fluorosurfactant, and a fluorine-containing monomer.

    Synthetic polymer film and production method of synthetic polymer film
    2.
    发明授权
    Synthetic polymer film and production method of synthetic polymer film 有权

    公开(公告)号：US11364673B2

    公开(公告)日：2022-06-21

    申请号：US16280543

    申请日：2019-02-20

    Applicant: SHARP KABUSHIKI KAISHA

    Inventor： Miho Yamada ,  Yasuhiro Shibai ,  Kiyoshi Minoura ,  Tokio Taguchi

    IPC: B29C59/00 ,  B29C33/38 ,  C08K5/5397 ,  C08L71/02 ,  B29C33/56 ,  B29C59/16 ,  B29C33/42 ,  B32B3/26

    Abstract: A synthetic polymer film whose surface has a plurality of raised or recessed portions, wherein a two-dimensional size of the plurality of raised or recessed portions is in a range of not less than 0.5 μm and not more than 3 μm when viewed in a normal direction of the synthetic polymer film, the synthetic polymer film has a crosslink structure and contains an organic carboxylic acid, at the lapse of 5 minutes since placing a 200 μL drop of water on the surface of the synthetic polymer film, a pH of an aqueous solution is less than 4, and an area equivalent circle diameter of the aqueous solution is not less than 20 mm, and at the lapse of 60 seconds since placing a drop of water on the surface of the synthetic polymer film, a static contact angle of the water drop with respect to the surface is less than 3°.

    Cover for endoscope distal end part and endoscope
    6.
    发明授权
    Cover for endoscope distal end part and endoscope 有权

    公开(公告)号：US12108933B2

    公开(公告)日：2024-10-08

    申请号：US17042876

    申请日：2019-03-20

    Applicant: SHARP KABUSHIKI KAISHA

    Inventor： Miho Yamada ,  Kiyoshi Minoura ,  Tokio Taguchi ,  Yasuhiro Shibai

    IPC: A61B1/00 ,  G02B1/118 ,  G02B1/18

    CPC classification number: A61B1/00096 ,  G02B1/118 ,  G02B1/18

    Abstract: An endoscope distal end cover (10) is a cover for protecting a distal end (20t) of an endoscope (20) which has an observation window at the distal end, including: a synthetic polymer film (13) which is to be located over the observation window (32) when the endoscope distal end cover is attached to the distal end of the endoscope, wherein the synthetic polymer film has a surface which includes a plurality of raised portions, when viewed in a normal direction of the synthetic polymer film, a two-dimensional size of the plurality of raised portions is in the range of more than 20 nm and less than 500 nm, and a static contact angle of water with respect to the surface is not less than 150°, and a static contact angle of hexadecane with respect to the surface is not less than 60°.

    Antifouling film and polymerizable composition
    7.
    发明授权
    Antifouling film and polymerizable composition 有权

    公开(公告)号：US10800868B2

    公开(公告)日：2020-10-13

    申请号：US16690185

    申请日：2019-11-21

    Applicant: Sharp Kabushiki Kaisha

    Inventor： Yasuhiro Shibai ,  Tokio Taguchi ,  Kenichiro Nakamatsu

    IPC: C08F222/20 ,  G02B1/18

    Abstract: An antifouling film includes: a substrate; and a polymer layer disposed on a surface of the substrate and including on a surface thereof an uneven structure provided with projections at a pitch not longer than a wavelength of visible light. The polymer layer is a cured product of a polymerizable composition. The polymerizable composition contains, in terms of active components, 75 to 95 wt % of a polymerizable monomer, 2.5 to 12.5 wt % of a urethane acrylate containing fluorine and an ester, and 2.5 to 9 wt % of a perfluoroalkyl-based monomer containing one (meth)acryloyl group for each molecule. The polymerizable monomer contains a bifunctional acrylate that contains an ethylene oxide group and a multifunctional acrylate that contains no ethylene oxide group. The perfluoroalkyl-based monomer has a fluorine atom concentration of 50 to 60 wt %. The polymerizable composition has an ethylene oxide group concentration of 20 to 50 wt %.

    Antireflection structure and display device
    10.
    发明授权
    Antireflection structure and display device 有权

    公开(公告)号：US09784889B2

    公开(公告)日：2017-10-10

    申请号：US14409159

    申请日：2013-06-14

    Applicant: Sharp Kabushiki Kaisha

    Inventor： Akiyoshi Fujii ,  Chiaki Minari ,  Tokio Taguchi ,  Nobuaki Yamada ,  Kiyoshi Minoura

    IPC: G02B1/118 ,  G02B1/04

    CPC classification number: G02B1/118 ,  G02B1/04

    Abstract: An antireflection structure is disclosed which is capable of enhancing designability by adjusting a reflection characteristic of a Moth-eye structure. A display device using the antireflection structure is also disclosed. The antireflection structure according to an embodiment includes a resin base member including, on a surface, an uneven structure in which a height from a bottom part to a top part is equal to or smaller than a visible light wavelength, and a resin layer covering at least a part of the uneven structure, the resin layer covering the bottom part of the uneven structure more thickly than the top part of the uneven structure.

Patent Agency Ranking