Patents Assigned to Fukuvi Chemical Industry Co., Ltd.
  • Publication number: 20250060513
    Abstract: An antiglare antireflection plate having excellent antireflection and antiglare properties is provided as following: the said plate is an antiglare antireflection plate including a hard coat layer, an antiglare layer, and an antireflection coat, in which the hard coat layer, the antiglare layer, and the antireflection coating are laminated in this order on a transparent resin base material, the antiglare layer is made of a cured product of a composition containing 0.1 to 15.0 parts by mass of inorganic particles having an average particle diameter (D50) of 500 nm to 700 nm relative to 100 parts by mass of a polymerizable acrylate compound, and line roughness characteristics defined in JIS B 0601 on a surface of the antiglare antireflection plate are as follows. An arithmetic average roughness (Ra) is 0.03 ?m or more and 0.20 ?m or less, an average length (RSm) is 10 ?m or more and 70 ?m or less, a skewness (Rsk) is ?0.05 or more and 1.50 or less, a kurtosis (Rku) is 2.0 or more and 5.
    Type: Application
    Filed: August 12, 2024
    Publication date: February 20, 2025
    Applicant: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Takuya ITO, Fumiya Yasui, Takashi Michishita
  • Patent number: 12031281
    Abstract: A vision guide with a light guiding rod including rope member formed by twisting plural strands; light guiding rod of circumferentially light emitting type being adheringly wound around spiral indentations formed between strands on outer circumference of rope member with core layer made of acrylic-based resin and clad layer made of fluorine-based resin; and light source attached to end portion of light guiding rod, wherein amount of change luminance of light guiding rod in test time over duration of 1000 hours by accelerated weathering tester is contained within range of ±10%; amount of change in each numerical value of chromaticity [x, y] is contained within range of ±0.02; flexural modulus of elasticity of light guiding rod under atmosphere of ?20 degrees Centigrade is contained at range of 0.5-5.0×103 MPa; rope member is formed by twisting strands at twisting angle from 10°-20°; and spiral indentations are uniformly formed with pitch from 100 mm-200 mm.
    Type: Grant
    Filed: April 15, 2019
    Date of Patent: July 9, 2024
    Assignees: FUKUVI CHEMICAL INDUSTRY CO., LTD., RIKEN KOGYO INC.
    Inventors: Yuto Usui, Kodai Hatakeyama, Tatsuya Yamazaki, Yukihiro Shibao
  • Publication number: 20240151047
    Abstract: To provide a mounting member comprising a ridge that is long in one direction and fixed to a desired position on a formwork in a simple manner, to form a desired groove portion in a concrete flat plate. The mounting member that is mounted on a formwork used to fabricate a concrete flat plate, and the mounting member comprises: a base material; a ridge portion that is provided on the base material and projects against an inner surface of the formwork; and a fixing portion that fixes the ridge portion to the inner surface.
    Type: Application
    Filed: October 12, 2023
    Publication date: May 9, 2024
    Applicant: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Daisuke Tanaka, Naoya Ishida, Hironori Horie, Eiji Koutani
  • Publication number: 20240052121
    Abstract: An antireflection substrate includes a resin substrate, and an underlying layer, a hard coat layer, an antireflection layer, and a cover layer which are provided on the resin substrate in this order. The underlying layer is formed of a cured material of a hexafunctional or higher functional urethane (meth)acrylate compound (A1), the hard coat layer contains a cured material of a urethane (meth)acrylate compound (A) containing a trifunctional or less functional urethane (meth)acrylate compound (A2), the antireflection layer includes an intermediate refractive index layer having a refractive index of 1.50 to 1.75, a high refractive index layer having a refractive index of 1.60 to 2.00, and a low refractive index layer having a refractive index of 1.25 to 1.
    Type: Application
    Filed: December 23, 2021
    Publication date: February 15, 2024
    Applicant: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventor: Teppei ITAMOTO
  • Publication number: 20230340213
    Abstract: A fiber-reinforced resin sheet includes a resin film which is thermoplastic, and a plurality of reinforcing fibers that are placed on the opposite surfaces of the resin film in a state of being oriented in the same direction after being opened from a bundle of reinforcing fibers. The resin film has a thickness of 5 ?m or more and 15 ?m or less, an areal weight of the reinforcing fibers is 25 g/m2 or more and 60 g/m2 or less, and a volume content of the reinforcing fibers is 60% or more and 75% or less. The fiber-reinforced resin sheet has a thickness of 30 ?m or more and 65 ?m or less.
    Type: Application
    Filed: November 29, 2021
    Publication date: October 26, 2023
    Applicant: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventor: Naoaki KANAMORI
  • Patent number: 11796717
    Abstract: An antireflection plate has a structure in which a hard coat layer, an antireflective layer having a low refractive index layer, a protective layer, and an overcoat layer are laminated in this order on a transparent resin substrate. The low refractive index layer is a cured body of a curable composition containing 50 to 200 parts by mass of (B-2) hollow silica fine particles, and the low refractive index layer has a refractive index of 1.20 to 1.45. The protective layer is a cured body of a curable composition containing 7.5 to 35 parts by mass of (B-3) spherical silica fine particles, and the protective layer has a thickness of 10 to 15 nm and a refractive index of 1.45 to 1.50. The overcoat layer includes a polymer of a fluorine-containing silicon compound.
    Type: Grant
    Filed: March 28, 2019
    Date of Patent: October 24, 2023
    Assignee: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masahiro Saito, Daisuke Hayashi, Yu Arai
  • Publication number: 20230025079
    Abstract: A fiber-reinforced resin composite sheet of the present invention contains: a polyamide resin film containing a dicarboxylic acid component (a) and a diamine component (b); and a plurality of reinforcing fibers laminated in a state of being oriented in the same direction on the polyamide resin film, the reinforcing fibers being obtained by opening a reinforcing fiber bundle. The dicarboxylic acid component (a) contains 60 mol % or more and 100 mol % or less of terephthalic acid. The diamine component (b) contains 60 mol % or more and 100 mol % or less of 1,9-nonanediamine and 2-methyl-1,8 octanediamine. The fiber-reinforced resin composite sheet has a volume content rate Vf of the reinforcing fibers of 20% or more and 70% or less and a thickness of 20 ?m or more and 70 ?m or less.
    Type: Application
    Filed: December 3, 2020
    Publication date: January 26, 2023
    Applicant: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventor: Naoaki KANAMORI
  • Publication number: 20220371293
    Abstract: A fiber-reinforced resin molded article is produced by pressing a plurality of thermoplastic base material sheets, each of which contains a plurality of reinforcing fibers, in a stacked state where the base material sheets are stacked so that the fiber directions (orientation direction of the reinforcing fibers) are alternated. Each base material sheet is provided with a cut including: a plurality of lengthwise cut lines extending parallel to the fiber direction; and a plurality of crosswise cut lines extending parallel to a direction that is perpendicular to the fiber direction. A plurality of cut interruption parts for interrupting the lengthwise cut lines in the fiber direction are formed. The cut interruption parts are arranged in a staggered manner so as to be displaced from each other in the fiber direction.
    Type: Application
    Filed: October 13, 2020
    Publication date: November 24, 2022
    Applicant: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Yui NAKANO, Yasutaka SASAKI
  • Patent number: 11498315
    Abstract: A transparent resin substrate composed of a light-transmitting resin base sheet, and an underlying layer, a hard coat layer, and an antireflection coating formed sequentially on the base sheet. The antireflection coating includes a medium refractive index layer on the hard coat layer, and a low refractive index layer on the medium refractive index layer. The underlying layer is a cured product of a hexa- or higher functional urethane acrylate monomer. The hard coat layer is a cured product of a hard coat layer composition containing a polymerizable monomer containing 50% by mass or more of a tri- or lower functional urethane acrylate monomer, silica particles, a silane coupling agent, and a metal chelate compound. The medium refractive index layer is a cured product of a medium refractive index layer composition. The low refractive index layer is a particle-free cured product of a low refractive index layer composition.
    Type: Grant
    Filed: December 18, 2017
    Date of Patent: November 15, 2022
    Assignee: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masahiro Saito, Teppei Itamoto
  • Publication number: 20220297394
    Abstract: A method of producing a composite material including carbon fiber and a melt-fabricable fluororesin, the method including: (1) preparing a prepreg by heating and compressing a stack of opened carbon fiber and a film of a melt-fabricable fluororesin at a temperature not lower than a melting point of the fluororesin, the film having a back tension set to 3.0 N/cm2 or less; and (2) preparing a composite material by heating and compressing one or more sheets or pieces of the prepreg stacked in a thickness direction at a temperature not lower than the melting point of the fluororesin.
    Type: Application
    Filed: May 26, 2022
    Publication date: September 22, 2022
    Applicants: DAIKIN INDUSTRIES, LTD., FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Shinji MURAKAMI, Hirokazu YUKAWA, Keisuke HAGI, Naoaki KANAMORI
  • Publication number: 20220289922
    Abstract: The present invention relates to a fiber-reinforced epoxy resin composite sheet comprising an epoxy resin film and reinforcing fibers laminated on one or both surfaces of the epoxy resin film, wherein in the reinforcing fibers, opened fibers are oriented in a predetermined direction, and a volume content Vf of the reinforcing fiber is 5 to 70%.
    Type: Application
    Filed: June 8, 2020
    Publication date: September 15, 2022
    Applicants: FUKUVI CHEMICAL INDUSTRY CO., LTD., MITSUBISHI CHEMICAL CORPORATION
    Inventors: Munetake TAJIMA, Naoaki KANAMORI, Hisaya USHIYAMA, Yusuke WATANABE
  • Publication number: 20220213657
    Abstract: A vision guide with a light guiding rod including rope member formed by twisting plural strands; light guiding rod of circumferentially light emitting type being adheringly wound around spiral indentations formed between strands on outer circumference of rope member with core layer made of acrylic-based resin and clad layer made of fluorine-based resin; and light source attached to end portion of light guiding rod, wherein amount of change luminance of light guiding rod in test time over duration of 1000 hours by accelerated weathering tester is contained within range of ±10%; amount of change in each numerical value of chromaticity [x, y] is contained within range of ±0.02; flexural modulus of elasticity of light guiding rod under atmosphere of ?20 degrees Centigrade is contained at range of 0.5-5.0×103 MPa; rope member is formed by twisting strands at twisting angle from 10°-20°; and spiral indentations are uniformly formed with pitch from 100 mm-200 mm.
    Type: Application
    Filed: April 15, 2019
    Publication date: July 7, 2022
    Applicants: FUKUVI CHEMICAL INDUSTRY CO., LTD., RIKEN KOGYO INC.
    Inventors: Yuto USUI, Kodai HATAKEYAMA, Tatsuya YAMAZAKI, Yukihiro SHIBAO
  • Publication number: 20210278568
    Abstract: The present invention provides a transparent substrate (10) in which the transparent substrate (10) is formed by fully curing a semi-cured product layer (13s) of an intermediate laminate (1) which includes a base material (11) having light-transmitting properties, an anti-reflective layer (14) provided on at least one surface of the base material (11), and the semi-cured product layer (13s) that is provided between the base material (11) and the anti-reflective layer (14) and is formed of a semi-cured product of an ultraviolet-curable resin composition, a surface of the anti-reflective layer (14) has an irregular uneven structure, and a surface of the uneven structure has an arithmetic mean roughness Ra of 0.01 to 1.00 ?m and am mean unevenness period RSm of 1 to 30 ?m, the anti-reflective layer (14) includes a low refractive index layer (14a) having a refractive index of 1.47 or less and a thickness of 50 to 200 nm at an outermost layer, a Young's modulus of the semi-cured product layer (13s) is 0.1 to 2.
    Type: Application
    Filed: November 1, 2017
    Publication date: September 9, 2021
    Applicant: Fukuvi Chemical Industry Co., Ltd.
    Inventors: Yukihiro YANAGAWA, Masahiro SAITO, Shinichi NOMURA, Yuya MATSUZAKI
  • Patent number: 11086062
    Abstract: A circumferentially light-emitting thermoplastic resin molded body which can be bent for use according to the type of optical ornaments or the shape of an object to be decorated and which allows the overall luminance of the emitted light to improve and restrains the luminescent color from being yellowed at the distal locations of such body with regard to the light source. The thermoplastic resin molded body has a core layer made from a thermoplastic elastomer; and a first clad layer made from a thermoplastic resin whose refractive index is smaller than the thermoplastic elastomer from which the core layer is made, in which a light diffusing agent is added to the thermoplastic elastomer from which the core layer is made and the thermoplastic resin from which the first clad layer is made respectively; and the total light transmittance of the first clad layer is defined as less than 70%.
    Type: Grant
    Filed: March 16, 2018
    Date of Patent: August 10, 2021
    Assignees: FUKUVI CHEMICAL INDUSTRY CO., LTD., KURARAY CO., LTD.
    Inventors: Naoaki Kanamori, Toshiaki Sugawara, Hiroshi Oshima, Dai Kataoka
  • Publication number: 20210103073
    Abstract: An antireflection plate has a structure in which a hard coat layer, an antireflective layer having a low refractive index layer, a protective layer, and an overcoat layer are laminated in this order on a transparent resin substrate. The low refractive index layer is a cured body of a curable composition containing 50 to 200 parts by mass of (B-2) hollow silica fine particles, and the low refractive index layer has a refractive index of 1.20 to 1.45. The protective layer is a cured body of a curable composition containing 7.5 to 35 parts by mass of (B-3) spherical silica fine particles, and the protective layer has a thickness of 10 to 15 nm and a refractive index of 1.45 to 1.50. The overcoat layer includes a polymer of a fluorine-containing silicon compound.
    Type: Application
    Filed: March 28, 2019
    Publication date: April 8, 2021
    Applicant: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masahiro SAITO, Daisuke HAYASHI, Yu ARAI
  • Publication number: 20200018884
    Abstract: A circumferentially light-emitting thermoplastic resin molded body which can be bent for use according to the type of optical ornaments or the shape of an object to be decorated and which allows the overall luminance of the emitted light to improve and restrains the luminescent color from being yellowed at the distal locations of such body with regard to the light source. The thermoplastic resin molded body has a core layer made from a thermoplastic elastomer; and a first clad layer made from a thermoplastic resin whose refractive index is smaller than the thermoplastic elastomer from which the core layer is made, in which a light diffusing agent is added to the thermoplastic elastomer from which the core layer is made and the thermoplastic resin from which the first clad layer is made respectively; and the total light transmittance of the first clad layer is defined as less than 70%.
    Type: Application
    Filed: March 16, 2018
    Publication date: January 16, 2020
    Applicants: FUKUVI CHEMICAL INDUSTRY CO., LTD., KURARAY CO., LTD.
    Inventors: Naoaki KANAMORI, Toshiaki SUGAWARA, Hiroshi OSHIMA, Dai KATAOKA
  • Publication number: 20190324173
    Abstract: A transparent resin substrate composed of a light-transmitting resin base sheet, and an underlying layer, a hard coat layer, and an antireflection coating formed sequentially on the base sheet. The antireflection coating includes a medium refractive index layer on the hard coat layer, and a low refractive index layer on the medium refractive index layer. The underlying layer is a cured product of a hexa- or higher functional urethane acrylate monomer. The hard coat layer is a cured product of a hard coat layer composition containing a polymerizable monomer containing 50% by mass or more of a tri- or lower functional urethane acrylate monomer, silica particles, a silane coupling agent, and a metal chelate compound. The medium refractive index layer is a cured product of a medium refractive index layer composition. The low refractive index layer is a particle-free cured product of a low refractive index layer composition.
    Type: Application
    Filed: December 18, 2017
    Publication date: October 24, 2019
    Applicant: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masahiro SAITO, Teppei ITAMOTO
  • Patent number: 10197722
    Abstract: A flexible linear light emitting element to be flexibly bent along the shape of an object to be decorated or to be bent in accordance with a linearly represented decorative letter or decorative pattern of any kind and to excel in light emitting performance such as luminance as well as a method of producing the same. The optical fiber type linear light emitting element includes a bar-shaped extrusion-molded article in which a clad layer made from a fluorine resin is integrally formed over the periphery of a cored layer made from an acrylic thermoplastic elastomer; and a block copolymer of methyl methacrylate and butyl acrylate or a block copolymer of methyl acrylate and butyl acrylate, the flexural modulus of elasticity (according to ASTM D790) of the copolymers ranging from 50 to 500 MPa, is adopted for the material of the cored layer.
    Type: Grant
    Filed: August 23, 2016
    Date of Patent: February 5, 2019
    Assignee: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventor: Naoaki Kanamori
  • Publication number: 20180231711
    Abstract: A flexible linear light emitting element to be flexibly bent along the shape of an object to be decorated or to be bent in accordance with a linearly represented decorative letter or decorative pattern of any kind and to excel in light emitting performance such as luminance as well as a method of producing the same. The optical fiber type linear light emitting element includes a bar-shaped extrusion-molded article in which a clad layer made from a fluorine resin is integrally formed over the periphery of a cored layer made from an acrylic thermoplastic elastomer; and a block copolymer of methyl methacrylate and butyl acrylate or a block copolymer of methyl acrylate and butyl acrylate, the flexural modulus of elasticity (according to ASTM D790) of the copolymers ranging from 50 to 500 MPa, is adopted for the material of the cored layer.
    Type: Application
    Filed: August 23, 2016
    Publication date: August 16, 2018
    Applicant: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventor: Naoaki KANAMORI
  • Patent number: 9149962
    Abstract: The transparent resin substrate has a light-transmitting thermoplastic resin underlying sheet 1 and a hard coating formed on one surface of the underlying sheet, wherein the hard coating includes a resin component obtained by curing an urethane acrylate that contains a tri-functional or less functional urethane acrylate and a tetra-functional or more functional urethane acrylate; a silane coupling agent or a hydrolyzed product thereof, a silica sol having a grain size of 5 to 500 nm and a refractive index in a range of 1.44 to 1.5; and a metal chelate compound. A low refractive index layer is formed on the hard coating, the low refractive index layer includes a low refractive index hollow silica sol having a grain size of 10 to 150 nm and a refractive index of not more than 1.44, the silane coupling agent or the hydrolyzed product thereof, and a metal chelate compound.
    Type: Grant
    Filed: October 26, 2011
    Date of Patent: October 6, 2015
    Assignee: FUKUVI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Masahiro Saito, Teppei Itamoto