Patents by Inventor Yukio Koyano

Yukio Koyano 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).

  • Patent number: 5412927
    Abstract: A longitudinal bag-making, filling and packaging machine, wherein in an outer surface of a product falling and filling tube wrapped by a packaging film folded into a tubular shape by a bag-making device, the packaging film is continuously fed downward by a film feeding device and an edge of the packaging film of which film inner surfaces are superposed on each other in a rib-like fashion is held in a longitudinal sealing device to longitudinally disposition-seal the end edge to form a packaging tube, an article to be packaged supplied through the product falling and filling tube is filled into the packaging tube hung down from the product falling and filling tube and the upper and lower portions of the article to be packaged of the packaging tube are laterally dipositioned-sealed into two strips by a lateral sealing and cutting device and the sealed portion of the two strips is cut.
    Type: Grant
    Filed: November 18, 1993
    Date of Patent: May 9, 1995
    Assignee: Kawashimaseisakusyo Co., Ltd.
    Inventors: Kiyoshi Miyazaki, Tomoyuki Wakai, Akira Isosaka, Yoshirou Watanabe, Yukio Koyano