Patents by Inventor Takahiko Kawai

Takahiko Kawai 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: 9403344
    Abstract: A water-repellent film is formed on a first joint surface of a first member that contains any one of a macromolecular material, a metallic material, and an inorganic material. The water-repellent film is subjected to an activation treatment, and is thereby converted into a film having a high hydrophilicity and a nylon 6 contact angle of less than 25°. A second joint surface of a second member that contains at least a thermoplastic resin, which differs from the macromolecular material, is placed on the first joint surface having the film, whereupon the second member is heated and melted. Then, the molten second member is cooled and solidified in order to bond the first joint surface and the second joint surface.
    Type: Grant
    Filed: October 14, 2013
    Date of Patent: August 2, 2016
    Assignee: HONDA MOTOR CO., LTD.
    Inventors: Hiroshi Akita, Keiichi Sato, Shinichi Kuroda, Takahiko Kawai
  • Publication number: 20140272436
    Abstract: A water-repellent film is formed on a first joint surface of a first member that contains any one of a macromolecular material, a metallic material, and an inorganic material. The water-repellent film is subjected to an activation treatment, and is thereby converted into a film having a high hydrophilicity and a nylon 6 contact angle of less than 25°. A second joint surface of a second member that contains at least a thermoplastic resin, which differs from the macromolecular material, is placed on the first joint surface having the film, whereupon the second member is heated and melted. Then, the molten second member is cooled and solidified in order to bond the first joint surface and the second joint surface.
    Type: Application
    Filed: October 14, 2013
    Publication date: September 18, 2014
    Applicant: HONDA MOTOR CO., LTD.
    Inventors: Hiroshi Akita, Keiichi Sato, Shinichi Kuroda, Takahiko Kawai