Patents by Inventor Hiroto Kouka

Hiroto Kouka 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).

  • Patent number: 10766229
    Abstract: The present invention provides an adhesive for laminating a metal foil and a resin film, including: (A) 1% to 20% by mass of polyurethane which has at least one functional group selected from the group consisting of a hydroxy group, an acryloyl group, and a carboxy group; (B) 30% to 90% by mass of a monomer which does not has an active hydrogen and has two or more ethylenically unsaturated bonds; (C) 1% to 55% by mass of an aliphatic monomer which has one ethylenically unsaturated bond; (D) 1% to 15% by mass of a polyisocyanate compound; and (E) 0.5% to 5% by mass of a photoinitiator. The (B) has a cyclic structure, and the (C) has a linear hydrocarbon group, a branched hydrocarbon group, or a cycloalkyl group.
    Type: Grant
    Filed: October 4, 2018
    Date of Patent: September 8, 2020
    Assignee: SHOWA DENKO K.K.
    Inventors: Kentarou Takahashi, Hiroto Kouka, Yasuhiro Nakagawa
  • Patent number: 10703944
    Abstract: An adhesive for laminating a metal foil to a resin film, the adhesive including: a polyol (A); a multimer of a polyisocyanate (B); and a metal compound (C) being a compound of at least one metal of Groups 7 and 12, wherein the multimer of a polyisocyanate (B) contains a multimer of a saturated aliphatic polyisocyanate and a multimer of a saturated alicyclic polyisocyanate. Also disclosed is a laminate having a metal foil and a resin film laminated through an adhesive layer obtained from the adhesive for laminating of the invention. Yet further disclosed is a packaging material for a battery casing obtained by using the laminate. Yet further disclosed is a battery case obtained by using the packaging material for a battery casing. Also disclosed is a method for producing a battery case which includes deep drawing or bulging the packaging material for a battery casing.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: July 7, 2020
    Assignee: SHOWA DENKO K.K.
    Inventors: Hiroto Kouka, Kazunari Fukase, Yasuhiro Nakagawa
  • Publication number: 20200189236
    Abstract: The present invention provides an adhesive for laminating a metal foil and a resin film, including: (A) 1% to 20% by mass of polyurethane which has at least one functional group selected from the group consisting of a hydroxy group, an acryloyl group, and a carboxy group; (B) 30% to 90% by mass of a monomer which does not has an active hydrogen and has two or more ethylenically unsaturated bonds; (C) 1% to 55% by mass of an aliphatic monomer which has one ethylenically unsaturated bond; (D) 1% to 15% by mass of a polyisocyanate compound; and (E) 0.5% to 5% by mass of a photoinitiator. The (B) has a cyclic structure, and the (C) has a linear hydrocarbon group, a branched hydrocarbon group, or a cycloalkyl group.
    Type: Application
    Filed: October 4, 2018
    Publication date: June 18, 2020
    Applicant: SHOWA DENKO K.K.
    Inventors: Kentarou TAKAHASHI, Hiroto KOUKA, Yasuhiro NAKAGAWA
  • Publication number: 20190326564
    Abstract: As an adhesive for the lamination of metal foil and a resin film, an adhesive that can stably exhibit good adhesiveness and moreover can provide a laminate having better electrolytic solution resistance and heat resistance is provided. An adhesive comprising a polyolefin resin (A) having a carboxyl group; and polyisocyanate compounds (B), wherein the polyisocyanate compounds (B) comprise a polymer of a saturated aliphatic polyisocyanate (B1), a polymer of a saturated alicyclic polyisocyanate (B2), and a polymer of an aromatic polyisocyanate (B3).
    Type: Application
    Filed: September 19, 2017
    Publication date: October 24, 2019
    Applicant: SHOWA DENKO K.K.
    Inventors: Hiroto KOUKA, Yasuhiro NAKAGAWA
  • Publication number: 20190023954
    Abstract: An adhesive for laminating a metal foil to a resin film, the adhesive including: a polyol (A); a multimer of a polyisocyanate (B); and a metal compound (C) being a compound of at least one metal of Groups 7 and 12, wherein the multimer of a polyisocyanate (B) contains a multimer of a saturated aliphatic polyisocyanate and a multimer of a saturated alicyclic polyisocyanate. Also disclosed is a laminate having a metal foil and a resin film laminated through an adhesive layer obtained from the adhesive for laminating of the invention. Yet further disclosed is a packaging material for a battery casing obtained by using the laminate. Yet further disclosed is a battery case obtained by using the packaging material for a battery casing. Also disclosed is a method for producing a battery case which includes deep drawing or bulging the packaging material for a battery casing.
    Type: Application
    Filed: December 9, 2016
    Publication date: January 24, 2019
    Applicant: Showa Denko K.K.
    Inventors: Hiroto KOUKA, Kazunari FUKASE, Yasuhiro NAKAGAWA
  • Publication number: 20180162100
    Abstract: An adhesive for laminating a metal foil to a resin film, the adhesive including: a polyol (A); a multimer of a polyisocyanate (B); and a metal compound (C) being a compound of at least one metal of Groups 7 and 12, wherein the multimer of a polyisocyanate (B) includes a multimer of a saturated aliphatic polyisocyanate (b1) and a multimer of a saturated alicyclic polyisocyanate (b2).
    Type: Application
    Filed: May 17, 2016
    Publication date: June 14, 2018
    Applicant: SHOWA DENKO K.K.
    Inventors: Kazunari FUKASE, Hiroto KOUKA, Yasuhiro NAKAGAWA, Mitsuru DOI
  • Publication number: 20170207427
    Abstract: There are provided an adhesive for laminating a metal foil to a resin film and the like, the adhesive comprising: a polyurethane polyol (A); and a saturated aliphatic and/or saturated alicyclic polyisocyanate (B), wherein the polyurethane polyol (A) is obtained by polyaddition of components comprising a chain polyolefin polyol (a1) and/or a polyester polyol (a2) having a constituent unit derived from a hydrogenated dimer acid and a constituent unit derived from a hydrogenated dimer diol, a hydroxylated hydrocarbon compound (b) having a saturated or unsaturated cyclic hydrocarbon structure and two or more hydroxy groups, and a polyisocyanate (c).
    Type: Application
    Filed: May 25, 2015
    Publication date: July 20, 2017
    Applicant: SHOWA DENKO K.K.
    Inventors: Hiroto KOUKA, Kazunari FUKASE, Naoki MURATA, Hui LI, Yasuhiro NAKAGAWA, Mitsuru DOI
  • Publication number: 20150079379
    Abstract: Provided are: a polymerizable composition; a polymer obtained by polymerizing the composition (including an optical adhesive sheet); an image display device using the polymer; and a method for manufacturing the image display device. The polymerizable composition includes: (1) at least one chosen from the group consisting of a compound including a (meth)acrylol group with a polyolefin structural unit, a compound including a (meth)acrylol group with a hydrogenated polyolefin structural unit, a compound including a (meth)acrylol group with a (poly)ester structural unit, and a compound including a (meth)acrylol group with a (poly)carbonate structural unit; (2) a liquid compound including a (meth)acrylol group other than constituent (1); (3) at least one chosen from the group consisting of liquid hydrogenated polybutadiene polyol, liquid hydrogenated polyisoprene polyol, and hydrogenated dimer diol; and (4) a photopolymerization initiator.
    Type: Application
    Filed: June 14, 2013
    Publication date: March 19, 2015
    Applicant: SHOWA DENKO K.K.
    Inventors: Kai Suzuki, Hiroto Kouka, Kazuhiko Ooga
  • Publication number: 20150050432
    Abstract: A polymerizable composition is disclosed wherein the polymerizable composition includes a first component selected from the group composed of compounds produced by an ester exchange reaction between a hydrogenated polyolefin polyol and an acrylic acid ester, compounds produced by an ester exchange reaction between a hydrogenated polyolefin polyol and a methacrylic acid ester, compounds produced by a dehydration condensation reaction between a hydrogenated polyolefin polyol and an acrylic acid, and compounds produced by a dehydration condensation reaction between a hydrogenated polyolefin polyol and a methacrylic acid, a second component selected from the group composed of compounds containing a hydrocarbon group with a carbon number more than or equal to 6 and an acryloyl group and compounds containing a hydrocarbon group with a carbon number more than or equal to 6 and a methacryloyl group, and a third component selected from the group composed of photopolymerization initiators.
    Type: Application
    Filed: February 26, 2013
    Publication date: February 19, 2015
    Inventors: Kazuhiko Ooga, Hiroto Kouka, Kai Suzuki, Kenichi Nakanishi
  • Publication number: 20150030836
    Abstract: In relation to a polymerizable composition for forming a transparent optical resin layer to be interposed between an image display section of an image display device and a light-transmissive protective section thereof, the present invention provides a polymerizable composition that does not give rise to display defects caused by the deformation of the image display section, enables high-luminance, high-contrast image displaying, has excellent heat resistance, and also has a low dielectric constant. This polymerizable composition comprises: (1) a urethane (meth)acrylate obtained by reacting a hydrogenated polyolefin polyol and a compound having an isocyanato group and a (meth)acryloyl group; (2) a (meth)acryloyl-group-containing compound having a hydrocarbon group with a carbon number of 6 or greater; and (3) a photopolymerization initiator.
    Type: Application
    Filed: February 28, 2013
    Publication date: January 29, 2015
    Applicant: SHOWA DENKO K.K.
    Inventors: Kazuhiko Ooga, Hiroto Kouka, Kenichi Nakanishi, Daigo Ito, Kazuhiro Sasaki, Yuta Takeuchi
  • Publication number: 20150005406
    Abstract: Provided is a photocurable moisture-proof insulating coating material which places little burden on the environment and has excellent surface curability with low irradiation. In addition, this photocurable moisture-proof insulating coating material is hydrophobic and exhibits high adhesion to a substrate material. Also provided is a novel urethane (meth)acrylate which is used for this moisture-proof insulating coating material. A urethane (meth)acrylate of the present invention is obtained by reacting (a) a polyester polyol that has a structural unit derived from a hydrogenated dimer acid and a structural unit derived from a hydrogenated dimer diol, (b) a polyisocyanate compound and (c) a hydroxyl group-containing (meth)acrylate. A moisture-proof insulating coating material of the present invention contains this urethane (meth)acrylate and a (meth)acryloyl group-containing compound that does not contain a silicon atom.
    Type: Application
    Filed: February 1, 2013
    Publication date: January 1, 2015
    Applicant: SHOWA DENKO K.K.
    Inventors: Kazuhiko Ooga, Hiroto Kouka, Kai Suzuki
  • Patent number: 8791307
    Abstract: A process of producing ?,?-unsaturated ethers includes pyrolyzing an acetal represented by Formula (2) below in a gas phase in the presence of a catalyst and a compound having at least one hydrogen atom capable of hydrogen bonding to produce an ?,?-unsaturated ether represented by Formula (3) below: R1R2CH—CR3(OR4)2??(2) R1R2C?C—R3(OR4)??(3) In Formulae (2) and (3), R1, R2 and R3 are each independently a hydrogen atom, an alkyl group, an alkenyl group or an aryl group; R4 is an alkyl group, an alkenyl group or an aryl group; the plurality of R4 in Formula (2) may be the same or different from each other.
    Type: Grant
    Filed: November 6, 2008
    Date of Patent: July 29, 2014
    Assignee: Showa Denko K.K.
    Inventors: Yoshikuni Okumura, Hiroto Kouka, Takanori Aoki
  • Publication number: 20100261936
    Abstract: A process of producing ?,?-unsaturated ethers includes pyrolyzing an acetal represented by Formula (2) below in a gas phase in the presence of a catalyst and a compound having at least one hydrogen atom capable of hydrogen bonding to produce an ?,?-unsaturated ether represented by Formula (3) below: R1R2CH—CR3(OR4)2??(2) R1R2C?C—R3(OR4)??(3) In Formulae (2) and (3), R1, R2 and R3 are each independently a hydrogen atom, an alkyl group, an alkenyl group or an aryl group; R4 is an alkyl group, an alkenyl group or an aryl group; the plurality of R4 in Formula (2) may be the same or different from each other.
    Type: Application
    Filed: November 6, 2008
    Publication date: October 14, 2010
    Applicant: SHOWA DENKO K.K.
    Inventors: Yoshikuni Okumura, Hiroto Kouka, Takanori Aoki
  • Patent number: 7728181
    Abstract: Disclosed is a method for producing an ?,?-unsaturated ether efficiently and stably for a long time. In the method for producing an ?,?-unsaturated ether, an acetal is thermally decomposed in the presence of a catalyst containing an apatite represented by any of the following formula (1)-(4) (M)5?y(HZO4)y(ZO4)3?y(X)1?y??(1) (M)5?y(HPO4)y(PO4)3?y(X)1?y??(2) (M)5?y+2n(HZO4)y(ZO4)3?y(X)1?y(SiO4)n??(3) (M)5?y+m(HZO4)y(ZO4)3?y(X)1?y(CO3)m??(4).
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: June 1, 2010
    Assignee: Showa Denko K.K.
    Inventors: Hiroto Kouka, Yoshikuni Okumura
  • Publication number: 20090227818
    Abstract: Disclosed is a method for producing an ?,?-unsaturated ether efficiently and stably for a long time. In the method for producing an ?,?-unsaturated ether, an acetal is thermally decomposed in the presence of a catalyst containing an apatite represented by any of the following formulae (1)-(4).
    Type: Application
    Filed: January 26, 2007
    Publication date: September 10, 2009
    Applicant: SHOWA DENKO K.K.
    Inventors: Hiroto Kouka, Yoshikuni Okumura