Patents by Inventor Yoshihide Kitagawa

Yoshihide Kitagawa 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).

  • Insulating paper for oil-immersed motors
    Patent number: 9931812
    Abstract: There is provided insulating paper for oil-immersed motors used in an oil-immersed motor in a state where folding is applied to the paper, the motor operating in a state where it is immersed in a cooling oil, the paper including a polyester film and heat resistant sheets made from aromatic polyamide laminated to both front and back surfaces of the polyester film, the polyester film and the heat resistant sheets being bonded with an acrylic adhesive, wherein the acrylic adhesive contains polyisocyanate and a polybutyl acrylate having a weight average molecular weight of 400,000 or more in a proportion of the polyisocyanate of more than 3 parts by weight and 20 parts by weight or less based on 100 parts by weight of the polybutyl acrylate.
    Type: Grant
    Filed: December 27, 2012
    Date of Patent: April 3, 2018
    Assignee: NITTO SHINKO CORPORATION
    Inventors: Yasuo Kashiwagi, Yoshiki Takahashi, Yoshihide Kitagawa, Jun Fujiki
  • INSULATING PAPER FOR OIL-IMMERSED MOTORS
    Publication number: 20150352811
    Abstract: There is provided insulating paper for oil-immersed motors used in an oil-immersed motor in a state where folding is applied to the paper, the motor operating in a state where it is immersed in a cooling oil, the paper including a polyester film and heat resistant sheets made from aromatic polyamide laminated to both front and back surfaces of the polyester film, the polyester film and the heat resistant sheets being bonded with an acrylic adhesive, wherein the acrylic adhesive contains polyisocyanate and a polybutyl acrylate having a weight average molecular weight of 400,000 or more in a proportion of the polyisocyanate of more than 3 parts by weight and 20 parts by weight or less based on 100 parts by weight of the polybutyl acrylate.
    Type: Application
    Filed: December 27, 2012
    Publication date: December 10, 2015
    Applicant: NITTO SHINKO CORPORATION
    Inventors: Yasuo KASHIWAGI, Yoshiki TAKAHASHI, Yoshihide KITAGAWA, Jun FUJIKI
  • Interphase insulating member and rotating electric machine
    Patent number: 7982355
    Abstract: An interphase insulating member allowing reduction in size of a rotating electric machine is provided. The interphase insulating member includes a flat portion interposed between and insulating neighboring two phases of coil ends, and a three-dimensional portion protruding from the flat portion and guiding the coil. On a surface of the flat portion, epoxy resin layer is provided as a reinforcing member.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: July 19, 2011
    Assignees: Toyota Jidosha Kabushiki, Nitto Shinko Corporation
    Inventors: Keiji Takizawa, Masakazu Katoh, Jun Fujiki, Akihiro Oohashi, Masanori Imai, Yoshiki Takahashi, Yasuo Kashiwagi, Yoshihide Kitagawa
  • INTERPHASE INSULATING MEMBER AND ROTATING ELECTRIC MACHINE
    Publication number: 20090189476
    Abstract: An interphase insulating member allowing reduction in size of a rotating electric machine is provide. The interphase insulating member includes a flat portion interposed between and insulating neighboring two phases of coil ends, and a three-dimensional portion protruding from the flat portion and guiding the coil. On a surface of the flat portion, epoxy resin layer is provided as a reinforcing member.
    Type: Application
    Filed: March 14, 2007
    Publication date: July 30, 2009
    Applicants: TOYOTA JIDOSHA KABUSHIKI KAISHA, NITTO SHINKO CORPORATION
    Inventors: Keiji Takizawa, Masakazu Katoh, Jun Fujiki, Akihiro Oohashi, Masanori Imai, Yoshiki Takahashi, Yasuo Kashiwagi, Yoshihide Kitagawa