Patents by Inventor Sachio Takizawa

Sachio Takizawa 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).

  • Manufacturing method for flanged resin product
    Patent number: 6579486
    Abstract: A manufacturing method for a resin product comprised of a plurality of separate pieces and having a flange, the plurality of separate pieces including one as a separate piece having a flange corresponding to the flange of the resin product, comprises primary-injection-molding the plurality of separate pieces including the separate piece having the flange by a primary injection of a resin, and having respective separate planes of the plurality of separate pieces in abutment, joining the separate pieces together to mold the resin product having the flange by a secondary injection of a welding resin. When molding the plurality of separate pieces including the separate piece having the flange by the primary injection of the resin, a gate part for molding the flange of the separate piece having the flange is positioned inside the flange.
    Type: Grant
    Filed: November 7, 2000
    Date of Patent: June 17, 2003
    Assignee: Nissan Motor Co., Ltd.
    Inventors: Shigeru Nakajima, Sachio Takizawa, Takuji Akiyama