Patents by Inventor Raito Funayama

Raito Funayama 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).

  • Transdermal patch having a pressure-sensitive adhesive comprising (meth)acrylic acid alkyl ester, N-hydroxyalkyl(meth)acrylamide, and vinyl monomers
    Patent number: 8361493
    Abstract: The patch according to an embodiment of the present invention includes: a support; and a pressure-sensitive adhesive layer on at least one surface of the support, wherein: the pressure-sensitive adhesive layer contains an acrylic copolymer obtained by copolymerizing monomer components containing (a) at least one kind of a monomer of a (meth)acrylic acid alkyl ester and (b) at least one kind of a monomer of an N-hydroxyalkyl(meth)acrylamide; a content of the (meth)acrylic acid alkyl ester monomer (a) with respect to a total amount of the monomer components is 50 wt % to 90 wt % and a content of the N-hydroxyalkyl(meth)acrylamide monomer (b) with respect to the total amount is 1 wt % to 20 wt %; and the monomer components are substantially free of a monomer having a carboxyl group.
    Type: Grant
    Filed: November 12, 2010
    Date of Patent: January 29, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Jun Ishikura, Raito Funayama, Yu Tachikawa, Junichi Sekiya, Tsuyoshi Kasahara, Ryo Hashino, Satoshi Ameyama, Hidetoshi Kuroda
  • PATCH AND PATCH PREPARATION
    Publication number: 20110123598
    Abstract: The patch according to an embodiment of the present invention includes: a support; and a pressure-sensitive adhesive layer on at least one surface of the support, wherein: the pressure-sensitive adhesive layer contains an acrylic copolymer obtained by copolymerizing monomer components containing (a) at least one kind of a monomer of a (meth)acrylic acid alkyl ester and (b) at least one kind of a monomer of an N-hydroxyalkyl(meth)acrylamide; a content of the (meth)acrylic acid alkyl ester monomer (a) with respect to a total amount of the monomer components is 50 wt % to 90 wt % and a content of the N-hydroxyalkyl(meth)acrylamide monomer (b) with respect to the total amount is 1 wt % to 20 wt %; and the monomer components are substantially free of a monomer having a carboxyl group.
    Type: Application
    Filed: November 12, 2010
    Publication date: May 26, 2011
    Applicant: NITTO DENKO CORPORATION
    Inventors: Jun ISHIKURA, Raito Funayama, Yu Tachikawa, Junichi Sekiya, Tsuyoshi Kasahara, Ryo Hashino, Satoshi Ameyama, Hidetoshi Kuroda
  • MEDICAL PRESSURE-SENSITIVE ADHESIVE COMPOSITION
    Publication number: 20110124833
    Abstract: There is provided a medical pressure-sensitive adhesive composition including an acrylic copolymer obtained by copolymerizing monomer components containing (a) at least one kind of a monomer of a (meth)acrylic acid alkyl ester and (b) at least one kind of a monomer of an N-hydroxyalkyl(meth)acrylamide, wherein: a content of the (meth)acrylic acid alkyl ester monomer (a) with respect to a total amount of the monomer components is 50 weight % to 99.9 weight % and a content of the N-hydroxyalkyl(meth)acrylamide monomer (b) with respect to the total amount is 0.1 weight % to 20 weight %; and the monomer components are substantially free of a monomer having a carboxyl group. The medical pressure-sensitive adhesive composition of the present invention is particularly suitable for applications such as medical patches and patch preparations.
    Type: Application
    Filed: November 12, 2010
    Publication date: May 26, 2011
    Applicant: NITTO DENKO CORPORATION
    Inventors: Jun ISHIKURA, Raito Funayama, Yu Tachikawa, Junichi Sekiya, Tsuyoshi Kasahara, Masayuki Okamoto, Masahito Niwa