Patents by Inventor Kazukiyo Hayashi

Kazukiyo Hayashi 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 forming an elongate body having a thickness change
    Patent number: 5441688
    Abstract: A method is provided for forming an elongate body having thickness change, such as a car window molding. In the method, a vertical member is extruded into a fixed wall thickness and a fixed outline. A horizontal member is extruded into the same outline as that of the vertical member but has a smaller wall thickness than that of the vertical member. An apparatus is provided to perform the method. The apparatus has a slide core axially reciprocating in a bore of a die so as to change a shape of a forming space.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: August 15, 1995
    Assignee: Toyoda Gosei Co., Ltd.
    Inventors: Shinichi Goto, Chiaki Komiyama, Hiroshi Iwasaki, Kazukiyo Hayashi