Patents by Inventor Yukiko Tamura

Yukiko Tamura 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: 9624368
    Abstract: Provided are an acrylic resin composition, an acrylic resin sheet, and an acrylic resin laminate that exhibit superior transparency and impact resistance. The acrylic resin composition contains 100 parts by mass of an acrylic polymer (A) having 50 to 100% by mass of a methyl methacrylate unit and 0.002 to 0.7 parts by mass of an olefin-alkyl (meth)acrylate copolymer (B). The copolymer (B) is preferably an ethylene-alkyl acrylate copolymer (B-2). The acrylic resin sheet contains this acrylic resin composition. The acrylic resin sheet has a haze value of 0.5% or less based on JIS K 7136, a 50% impact-puncture height of at least 350 mm or more in a falling ball test based on JIS K 7211 under the described conditions, and a sheet thickness of 2 mm or less. The acrylic resin laminate has a cured layer laminated on at least one surface of the acrylic resin sheet.
    Type: Grant
    Filed: May 8, 2012
    Date of Patent: April 18, 2017
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Yukiko Tamura, Masahiko Ono, Osamu Kawai
  • Publication number: 20150284558
    Abstract: Provided are: a (meth)acrylic resin molded body having superior transparency and shock resistance; a method for producing same; and a method for producing a (meth)acrylic resin composition that can provide the (meth)acrylic resin molded body. In the method for producing a (meth)acrylic resin composition containing a (meth)acrylic polymer (A), which has a methyl methacrylate unit, and an olefin-alkyl(meth)acrylate copolymer (B), a monomer starting material containing methyl methacrylate is polymerized in the presence of the olefin-alkyl(meth)acrylate copolymer (B) using a specific polymerization initiator, obtaining a (meth)acrylic polymer (A) having methyl methacrylate units. Further provided are: a (meth)acrylic resin molded body obtained from the (meth)acrylic resin composition; a front surface plate for a liquid crystal display device using the (meth)acrylic resin molded body; and a touch panel.
    Type: Application
    Filed: October 24, 2013
    Publication date: October 8, 2015
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Kenji Mochida, Yukiko Tamura, Masahiko Ono
  • Publication number: 20140141270
    Abstract: Provided are an acrylic resin composition, an acrylic resin sheet, and an acrylic resin laminate that exhibit superior transparency and impact resistance. The acrylic resin composition contains 100 parts by mass of an acrylic polymer (A) having 50 to 100% by mass of a methyl methacrylate unit and 0.002 to 0.7 parts by mass of an olefin-alkyl (meth)acrylate copolymer (B). The copolymer (B) is preferably an ethylene-alkyl acrylate copolymer (B-2). The acrylic resin sheet contains this acrylic resin composition. The acrylic resin sheet has a haze value of 0.5% or less based on JIS K 7136, a 50% impact-puncture height of at least 350 mm or more in a falling ball test based on JIS K 7211 under the described conditions, and a sheet thickness of 2 mm or less. The acrylic resin laminate has a cured layer laminated on at least one surface of the acrylic resin sheet.
    Type: Application
    Filed: May 8, 2012
    Publication date: May 22, 2014
    Applicant: MITSUBISHI RAYON CO., LTD.
    Inventors: Yukiko Tamura, Masahiko Ono, Osamu Kawai
  • Patent number: 8470445
    Abstract: Disclosed is a resin laminate having a surface layer excellent in antistatic properties, scratch resistance, and transparency. Also disclosed is a method for producing the resin laminate with a high productivity. Further disclosed is a transfer film for use in the production of the resin laminate. The resin laminate comprises a resin shaped article, an antistatic layer containing a ?-electron conjugated conductive polymer and at least one resin selected from a polyester resin, a polyurethane resin, a polyesterurethane resin, an acrylic resin, and a melamine resin on at least one surface of the shaped article, and a cured coating film layer obtained by curing a curable resin on the antistatic layer.
    Type: Grant
    Filed: September 18, 2007
    Date of Patent: June 25, 2013
    Assignee: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroshi Okafuji, Yukiko Tamura, Osamu Kawai, Kenichi Mori, Masayoshi Sato, Koji Itoh
  • Publication number: 20100028693
    Abstract: Disclosed is a resin laminate having a surface layer excellent in antistatic properties, scratch resistance, and transparency. Also disclosed is a method for producing the resin laminate with a high productivity. Further disclosed is a transfer film for use in the production of the resin laminate. The resin laminate comprises a resin shaped article, an antistatic layer containing a ?-electron conjugated conductive polymer and at least one resin selected from a polyester resin, a polyurethane resin, a polyesterurethane resin, an acrylic resin, and a melamine resin on at least one surface of the shaped article, and a cured coating film layer obtained by curing a curable resin on the antistatic layer.
    Type: Application
    Filed: September 18, 2007
    Publication date: February 4, 2010
    Applicant: Mitsubishi Rayon Co., Ltd.
    Inventors: Hiroshi Okafuji, Yukiko Tamura, Osamu Kawai, Kenichi Mori, Masayoshi Sato, Koji Itoh