Patents by Inventor Yoshitada Arakawa

Yoshitada Arakawa 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: 8671803
    Abstract: When bolts are fastened to tack a door to a car body by means of a conventional impact wrench, the shavings stick to the surface of the door or car body, thereby to cause the poor coating quality such as a seeding when the inter-coating or finish-coating is performed in the coating procedure. An impact wrench provided is a fastening tool for fastening a bolt gripped by a socket, in a nut. The impact wrench includes a suction cover for covering the surroundings of the socket, and a suction port capable of sucking the atmosphere in the portion covered with the suction cover, and is constituted such that the atmosphere in the suction cover is sucked through the suction port to recover the shavings left at the time of fastening the bolt. This constitution makes it possible to prevent the shavings from being scattered to the surroundings.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: March 18, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Toshinari Katsunuma, Mikio Hanai, Yoshitada Arakawa, Harutsugu Yoshida, Jiro Tsukamoto, Nobuyuki Morimoto, Noritsugu Okada
  • Publication number: 20100199810
    Abstract: When bolts are fastened to tack a door to a car body by means of a conventional impact wrench, the shavings stick to the surface of the door or car body, thereby to cause the poor coating quality such as a seeding when the inter-coating or finish-coating is performed in the coating procedure. An impact wrench provided is a fastening tool for fastening a bolt gripped by a socket, in a nut. The impact wrench includes a suction cover for covering the surroundings of the socket, and a suction port capable of sucking the atmosphere in the portion covered with the suction cover, and is constituted such that the atmosphere in the suction cover is sucked through the suction port to recover the shavings left at the time of fastening the bolt. This constitution makes it possible to prevent the shavings from being scattered to the surroundings.
    Type: Application
    Filed: August 20, 2008
    Publication date: August 12, 2010
    Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Toshinari Katsunuma, Mikio Hanai, Yoshitada Arakawa, Harutsugu Yoshida, Jiro Tsukamoto, Nobuyuki Morimoto, Noritsugu Okada