Patents by Inventor Atsushi Shiji

Atsushi Shiji 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).

  • Roll forming apparatus
    Patent number: 5722278
    Abstract: A roll forming apparatus incorporates tension rolls which feed a material along a longitudinal direction thereof. The tension rolls are arranged at predetermined intervals and are driven. Also, forming rolls which form the fed material are arranged alternatingly on both sides in the width direction of the material between adjacent tension rolls. The roll forming apparatus described above prevents scratches on the material from forming as a result of the material sliding on the forming rolls.
    Type: Grant
    Filed: January 23, 1997
    Date of Patent: March 3, 1998
    Assignees: Aisin Seiki Kabushiki Kaisha, Chubo Engineering Kabushiki Kaisha
    Inventors: Katuyoshi Horino, Mitsuhiro Ozawa, Norio Nishikawa, Teruhiko Sato, Atsushi Shiji, Takashi Wada