Patents by Inventor Atsushi Kamibayashi

Atsushi Kamibayashi 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).

  • Variable section extrusion die set and variable extrusion molding method
    Patent number: 5775155
    Abstract: A molded product with a variable cross sectional configuration in the longitudinal direction is subjected to extrusion molding by using a die set for extruding a molding with a variable section in a longitudinal direction, the die set comprising a first die 10 and a second die 11, the first die 10 and the second die 11 being relatively movably disposed along the web shaping-holes 16 and 28 and arranged in order in the extruding direction of a molding material such that a first extrusion hole 14 and a second extrusion hole 30 have web shaping-holes 16 and 28 communicated with each other and a flange portion shaping-hole 15 (27) of one of the dies is situated on the side of a flange portion communication hole 29 (17) of the other die, and relatively moving the first die 10 and the second die 11 while extruding the molding material towards the variable section extrusion die set.
    Type: Grant
    Filed: August 23, 1996
    Date of Patent: July 7, 1998
    Assignee: Mitsubishi Aluminum Co., Ltd.
    Inventors: Masatsugu Kato, Shigeo Sano, Atsushi Kamibayashi, Yasumasa Hiyoshi