Patents by Inventor Kozo Itaya

Kozo Itaya 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).

  • Packaging structure
    Patent number: 5318824
    Abstract: A packaging structure composed of a composite synthetic resin sheet having a depressed portion formed therein for holding an article and a metal foil bonded to the sheet, said composite sheet being a three-layer sheet composed of an interlayer of high-density polyethylene and outside layers of a propylene polymer bonded to both surfaces of the interlayer, the interlayer having a thickness of 120 to 800 micrometers, each of the outside layers having a thickness of 15 to 80 micrometers, and the thickness of the interlayer being at least 2.5 times the total thickness of both outside layers; a process for production thereof; and a process for producing a composite (synthetic) resin sheet suitable as a material for the aforesaid packaging structure.
    Type: Grant
    Filed: October 14, 1992
    Date of Patent: June 7, 1994
    Assignees: Mitsui Petrochemical Industries, Ltd., Shionogi & Co. Ltd., Taisei Kako Co., Ltd.
    Inventors: Kozo Itaya, Hirotaka Nishida, Kazutoshi Fukuda
  • Process for producing a composite sheet
    Patent number: 4973375
    Abstract: A packaging structure composed of a composite synthetic resin sheet having a depressed portion formed therein for holding an article and a metal foil bonded to the sheet, said composite sheet being a three-layer sheet composed of an interlayer of high-density polyethylene and outside layers of a propylene polymer bonded to both surfaces of the interlayer, the interlayer having a thickness of 120 to 800 micrometers, each of the outside layers having a thickness of 15 to 80 micrometers, and thickness of the interlayer being at least 2.5 times the total thickness of both outside layers; a process for production thereof; and a process for producing a composite (synthetic) resin sheet suitable as a material for the aforesaid packaging structure.
    Type: Grant
    Filed: August 25, 1989
    Date of Patent: November 27, 1990
    Assignees: Mitsui Petrochemical Industries, Ltd., Shionogi and Co., Ltd., Taisei Kako Co., Ltd.
    Inventors: Kozo Itaya, Hirotaka Nishida, Kazutoshi Fukuda
  • Glass vial with diagonal cut line
    Patent number: 4392577
    Abstract: A vial, particularly a glass vial, having a diagonally disposed cut line which is defined by off-set indentations in the neck portion of the vial.
    Type: Grant
    Filed: April 10, 1981
    Date of Patent: July 12, 1983
    Assignees: Shionogi & Co., Ltd., Taisei Kako Co., Ltd.
    Inventors: Hideyuki Maekawa, Shinji Hiramoto, Kozo Itaya, Kokichi Sato, Hirotaka Nishida