Patents Assigned to Ringston Co., Ltd.
  • Plastic film bag with an inflated pattern
    Patent number: 5348155
    Abstract: A plastic film bag with an inflated pattern of the invention is formed of a bag section for retaining an article therein, an inflating portion of a pattern sealingly attached to the bag section and an inflating device for inflating the inflating portion. When the inflating portion is inflated by fluid through the inflating device, the inflating portion becomes three-dimensional and projects outwardly from the outer surface of the bag section without substantially reducing a space inside the bag section.
    Type: Grant
    Filed: April 7, 1993
    Date of Patent: September 20, 1994
    Assignee: Ringston Co., Ltd.
    Inventor: Takuzo Ishiwa