Patents by Inventor Yoshiyuki Kishina

Yoshiyuki Kishina 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).

  • Methods of preparation of packaging bags for bottles, methods of preparation of packaging bottles and apparatus utilized therefor
    Patent number: 5179819
    Abstract: A method of preparation of packaging bags for bottles, wherein a scrap piece formed at the closed end of the bag is discharged by mechanical methods. In one method, a long cylindrical film sheet is fed to the apparatus so as to place the portion of the film sheet forming the open end of the bag at the top and both sides of scrap pieces are cut and separated simultaneously. In another method, a long cylindrical film sheet is fed to the apparatus so as to place the portion of the film sheet forming a scrap piece at the top, and the scrap piece and the periphery of a closed end of the bag are cut simultaneously.
    Type: Grant
    Filed: July 15, 1991
    Date of Patent: January 19, 1993
    Assignees: Sumitomo Bakelite Company, Ltd., Sumitomo Heavy Industries, Ltd.
    Inventors: Ryuzo Sukeyasu, Yoshiyuki Kishina, Masao Okawa, Naoyuki Horigome, Yasuhito Ito