Patents by Inventor Isao Nishigaki

Isao Nishigaki 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).

  • Method of producing resin mold
    Patent number: 6764630
    Abstract: A resin (61) as a material of a resin mold is injected in a second resin filling space (57) from a resin injection hole (51) provided in a second back surface reinforcing member (50). When the resin overflows from a resin overflow hole (52), the injection of the resin is stopped, followed by curing of the resin. During the operation of the resin filling step, since a downward load equivalent to a total of a weight of the resin injected in the second resin filling space and the injection pressure is applied to the master model (30), there is a possibility that the master model be deflected downwardly; however, in actual, since the back surface of the master model is overall supported by the temporary filler (59), the master model is not deflected downwardly.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: July 20, 2004
    Assignees: Honda Giken Kogyo Kabushiki Kaisha, Forma Co., Ltd.
    Inventors: Hiroshi Shirakawa, Isao Nishigaki, Masami Kunii
  • Method of producing resin mold
    Publication number: 20030038396
    Abstract: A resin (61) as a material of a resin mold is injected in a second resin filling space (57) from a resin injection hole (51) provided in a second back surface reinforcing member (50). When the resin overflows from a resin overflow hole (52), the injection of the resin is stopped, followed by curing of the resin. During the operation of the resin filling step, since a downward load equivalent to a total of a weight of the resin injected in the second resin filling space and the injection pressure is applied to the master model (30), there is a possibility that the master model be deflected downwardly; however, in actual, since the back surface of the master model is overall supported by the temporary filler (59), the master model is not deflected downwardly.
    Type: Application
    Filed: August 22, 2002
    Publication date: February 27, 2003
    Applicant: Honda Giken Kogyo Kabushiki Kaisha
    Inventors: Hiroshi Shirakawa, Isao Nishigaki, Masumi Kunii