Patents by Inventor Tsuyoshi Kishida

Tsuyoshi Kishida 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).

  • Hermetically sealed package and method of producing the same
    Patent number: 4858780
    Abstract: A hermetically sealed package comprising:(a) a multilayer container comprising at least an innermost layer and a layer adjacent to the innermost layer, the innermost layer and the layer adjacent to the innermost layer being joined by a pressure sensitive adhesive, the multilayer container including(1) a recessed portion;(2) a flat flange portion adjoining integrally the rim of the recessed portion; and(3) a notch surrounding the boundary between the recessed portion and the flat flange portion, the notch being provided on the flat flange portion in the innermost layer of the multilayer container; and(b) a top film including(1) a lid portion for sealing the multilayer container, the lid portion being adhered strongly to the flat flange portion of the multilayer container at the outside of the notch; and(2) a tab portion for picking the top film, the tab portion extending from the rim of the lid portion, being integral with the lid portion, and being not adhered to the flat flange portion;the coefficient of adh
    Type: Grant
    Filed: September 9, 1988
    Date of Patent: August 22, 1989
    Assignee: Idemitsu Petrochemical Co., Ltd.
    Inventors: Hiroshi Odaka, Tsuyoshi Kishida