Patents by Inventor Kenta NONAKA

Kenta NONAKA has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20230241874
    Abstract: A resin sheet for molding includes a substrate layer that contains polycarbonate resin (a1), a high-hardness resin layer that contains high-hardness resin and that is provided on at least one surface of the substrate layer, a hard coat layer or a hard coat antiglare layer that is provided on at least one surface of the high-hardness resin layer, and a wet antireflection layer that is laminated on a surface of the hard coat layer or the hard coat antiglare layer on the side opposite from the high-hardness resin layer, wherein the glass transition temperatures of the polycarbonate resin (a1) and the high-hardness resin satisfy the following relationship: ?10° C.?(glass transition temperature of high-hardness resin)?(glass transition temperature of polycarbonate resin (a1))?40° C.
    Type: Application
    Filed: May 27, 2021
    Publication date: August 3, 2023
    Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.
    Inventors: Atsuhiro TOKITA, Kenta NONAKA, Masato TAKASAKI
  • Publication number: 20220379590
    Abstract: Provided is a resin sheet for molding that has a high-hardness resin layer that includes a high-hardness resin on at least one surface of a base material layer that includes a polycarbonate resin, the high-hardness resin layer having a hardcoat layer or a hardcoat anti-glare layer layered on at least one side thereof. The glass transition points of the polycarbonate resin and the high-hardness resin satisfy the relationship: ?10° C.?(glass transition point of high-hardness resin)?(glass transition point of polycarbonate resin)?40° C. The in-plane retardation of the resin sheet as measured at a wavelength of 543 nm is at least 4,000 nm. A resin film that has an in-plane retardation of no more than 50 nm as measured at a wavelength of 543 nm is stuck to one side of the resin sheet by means of an adhesive layer that includes an adhesive.
    Type: Application
    Filed: August 4, 2020
    Publication date: December 1, 2022
    Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.
    Inventors: Atsuhiro TOKITA, Kenta NONAKA, Masato TAKASAKI
  • Patent number: 11409025
    Abstract: Provided is a functional polyamide sheet in which air bubbles are not generated or are reduced in a polarizing and/or photochromic functional sheet when the polarizing and/or photochromic functional sheet are/is manufactured using a sheet or film formed by a polyamide resin as a protective layer, and a functional polyamide lens using the functional polyamide sheet. Provided are a polyamide functional sheet obtained by disposing a protective layer formed by a transparent plastic sheet or film on at least one surface of a functional layer, which is a polyvinyl alcohol-based polarizing film layer, a photochromic layer, or a combination of these layers, with an adhesive layer being interposed therebetween, in which the protective layer is a sheet or film formed by a polyamide resin, and an oxygen transmission rate at 23° C. and 85% RH is 50 cm3/m2·24 hr·bar or more, and a functional polyamide lens using the polyamide functional sheet.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: August 9, 2022
    Assignees: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.
    Inventors: Hideaki Kimura, Masayuki Akaki, Kenta Nonaka, Takashi Fujii, Katsuyuki Murai, Shotaro Ohno
  • Publication number: 20220056224
    Abstract: Provided is a resin sheet for molding, which is provided with a base material layer that contains a polycarbonate resin (a1), a high hardness resin layer that contains a high hardness resin, and a hard coat anti-glare layer, and which is configured such that: the high hardness resin layer is arranged between the base material layer and the hard coat anti-glare layer; the glass transition points of the polycarbonate resin (a1) and the high hardness resin satisfy the relational expression ?10° C.?(glass transition point of high hardness resin)?(glass transition point of polycarbonate resin (a1))?40° C.; and two protective films are superposed and bonded onto both surfaces of the resin sheet.
    Type: Application
    Filed: February 25, 2020
    Publication date: February 24, 2022
    Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.
    Inventors: Atsuhiro TOKITA, Kenta NONAKA, Masato TAKASAKI
  • Publication number: 20200174159
    Abstract: Provided is a functional polyamide sheet in which air bubbles are not generated or are reduced in a polarizing and/or photochromic functional sheet when the polarizing and/or photochromic functional sheet are/is manufactured using a sheet or film formed by a polyamide resin as a protective layer, and a functional polyamide lens using the functional polyamide sheet. Provided are a polyamide functional sheet obtained by disposing a protective layer formed by a transparent plastic sheet or film on at least one surface of a functional layer, which is a polyvinyl alcohol-based polarizing film layer, a photochromic layer, or a combination of these layers, with an adhesive layer being interposed therebetween, in which the protective layer is a sheet or film formed by a polyamide resin, and an oxygen transmission rate at 23° C. and 85% RH is 50 cm3/m2·24 hr·bar or more, and a functional polyamide lens using the polyamide functional sheet.
    Type: Application
    Filed: July 5, 2018
    Publication date: June 4, 2020
    Applicants: MITSUBISHI GAS CHEMICAL COMPANY, INC., MGC FILSHEET CO., LTD.
    Inventors: Hideaki KIMURA, Masayuki AKAKI, Kenta NONAKA, Takashi FUJII, Katsuyuki MURAI, Shotaro OHNO