Patents by Inventor Mariko Ikuma

Mariko Ikuma 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).

  • Plug-opening device for sealed container
    Patent number: 5481946
    Abstract: A plug-opening device for a sealed type container, an opening of which is sealed with a sealing plug having a plug-opening tab, comprising a gripping mechanism for gripping the tab of the sealed container at a plug-opening position; and a plug-opening mechanism for moving the gripping mechanism passing through a position above the sealed container obliquely and upwardly on the side opposite to the position for the tab. The plug can be detached automatically from the opening reliably.
    Type: Grant
    Filed: May 12, 1994
    Date of Patent: January 9, 1996
    Assignee: System Stack, Co., Ltd.
    Inventors: Susumu Nishikawa, Mariko Ikuma