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    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：US10996377B2

    公开(公告)日：2021-05-04

    申请号：US16078210

    申请日：2017-02-15

    Applicant: SHARP KABUSHIKI KAISHA

    Inventor： Yasuhiro Shibai ,  Ken Atsumo ,  Hidekazu Hayashi

    IPC: B32B27/30 ,  G02B1/118 ,  B32B3/30 ,  B32B27/00 ,  B32B23/08 ,  B32B27/16 ,  B32B27/22

    Abstract: The method for producing an optical member of the present invention includes: a step (1) of applying a lower layer resin and an upper layer resin; a step (2) of pressing a die against the lower layer resin and the upper layer resin from the upper layer resin side, so as to form a resin layer including an uneven structure on a surface thereof; and a step (3) of curing the resin layer to form the polymer layer, wherein the lower layer resin contains an amide group, the lower layer resin has an amide group concentration of 1.5 mmol/g or more and less than 5 mmol/g, and the polymer layer has a minimum storage modulus E′ of 1×108 Pa or higher and 1×109 Pa or lower at a bottom temperature of 110° C. or higher and 210° C. or lower.

    Method for producing optical member, and optical member
    2.
    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.

    Antifouling film
    4.
    发明授权
    Antifouling film 有权

    公开(公告)号：US10744738B2

    公开(公告)日：2020-08-18

    申请号：US16067052

    申请日：2017-07-03

    Applicant: SHARP KABUSHIKI KAISHA

    Inventor： Hidekazu Hayashi ,  Atsushi Niinoh

    IPC: B32B27/18 ,  B32B3/30 ,  G02B1/18 ,  B32B27/30 ,  G02B27/00 ,  C09D5/16 ,  C09D5/00 ,  C08F290/06 ,  B32B27/08 ,  B32B38/06 ,  C08F290/04 ,  C08J5/18 ,  G02B1/118

    Abstract: The antifouling film includes a polymer layer that includes on a surface thereof an uneven structure provided with multiple projections at a pitch not longer than a wavelength of visible light. The polymer layer has a proportion of the number of fluorine atoms relative to the sum of the numbers of carbon atoms, nitrogen atoms, oxygen atoms, and fluorine atoms of 33 atom % or more on the surface of the uneven structure. The polymer layer has at least one local maximum of the proportion of the number of nitrogen atoms relative to the sum of the numbers of carbon atoms, nitrogen atoms, oxygen atoms, and fluorine atoms in a region 5 to 90 nm deep from the surface of the uneven structure. The local maximum is 0.3 atom % or more greater than the average value in a region 90 to 120 nm deep from the surface of the uneven structure.

    Mold manufacturing method and anti-reflective film manufacturing method
    6.
    发明授权
    Mold manufacturing method and anti-reflective film manufacturing method 有权

    公开(公告)号：US10695955B2

    公开(公告)日：2020-06-30

    申请号：US15524385

    申请日：2015-10-30

    Applicant: Sharp Kabushiki Kaisha

    Inventor： Nobuaki Yamada ,  Hidekazu Hayashi ,  Miho Yamada

    IPC: C25D11/04 ,  B29C33/38 ,  B29C59/02 ,  C25D11/12 ,  G02B1/118 ,  B29C37/00 ,  B29C33/42 ,  C25D11/24 ,  B29C33/72 ,  C25D11/10 ,  C25D11/08

    Abstract: A manufacturing method of a mold, the mold having at its surface a plurality of recessed portions whose two-dimensional size is not less than 10 nm and less than 500 nm when viewed in a direction normal to the surface, the method comprising: (a) providing a mold base (10); (b) partially anodizing the aluminum alloy layer (18), thereby forming a porous alumina layer (14) which has a plurality of minute recessed portions (14p); (c) bringing the porous alumina layer into contact with an etching solution, thereby enlarging the plurality of minute recessed portions; (d) detecting a protrusion (210) formed at a surface of the porous alumina layer or the mold base; (e) determining whether or not a height of the detected protrusion is greater than a predetermined height; and (f) if it is determined at step (e) that the height of the protrusion is greater, irradiating the protrusion with laser light such that the height of the protrusion becomes smaller than the predetermined height.

    DIE REPAIRING METHOD AND METHOD FOR MANUFACTURING FUNCTIONAL FILM USING SAME
    9.
    发明申请
    DIE REPAIRING METHOD AND METHOD FOR MANUFACTURING FUNCTIONAL FILM USING SAME 有权
    用于制造功能膜的DIE修复方法和方法

    公开(公告)号：US20150015961A1

    公开(公告)日：2015-01-15

    申请号：US14376982

    申请日：2013-02-07

    Applicant: Sharp Kabushiki Kaisha

    Inventor： Hidekazu Hayashi

    IPC: B29C33/74 ,  G02B1/11 ,  B29C33/72

    CPC classification number: B29C33/74 ,  B29C33/58 ,  B29C33/72 ,  B29C2033/725 ,  B29D11/00278 ,  B29D11/00288 ,  B29K2101/00 ,  C25D11/18 ,  G02B1/118

    Abstract: This is a mold repairing method for removing a resin material deposited on a mold, of which the surface is a porous film with a plurality of recesses that have been created through anodization. The mold repairing method includes the steps of: (I) removing the resin material that is exposed on the surface of the mold over the plurality of recesses without performing atmospheric pressure plasma processing; and (II) removing at least partially the resin material that is still left inside the plurality of recesses by the atmospheric pressure plasma processing, after the step (I) has been performed, thereby recovering the original function of the mold.

    Abstract translation: 这是用于去除沉积在模具上的树脂材料的模具修复方法，其中表面是具有通过阳极氧化产生的多个凹部的多孔膜。 模具修复方法包括以下步骤：（I）在不进行大气压等离子体处理的情况下，在多个凹部上去除在模具表面露出的树脂材料; 和（II）在进行了工序（I）之后，通过大气压等离子体处理，至少部分除去仍然留在多个凹部内的树脂材料，从而恢复了模具的原有功能。

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