Patents by Inventor Sayaka Kawashima

Sayaka Kawashima 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).

  • Patent number: 7858171
    Abstract: The main object of the present invention is to provide a barrier film having an extremely high barrier property and a good transparency, a laminated material using the above-mentioned barrier film, a packaging container, and an image display medium. The above-mentioned object is achieved by providing a barrier film comprising a base material film and a barrier layer deposited on at least one side surface of the base material film, wherein the barrier layer comprises a water repellent layer and a dense layer, the water repellent layer is a silicon oxide carbide film having the atomic percent of Si:O:C in a range of 100:40 to 120:80 to 160, and the thickness in a range of 2 to 300 nm, and the dense layer is a silicon oxide carbide film having the atomic percent of Si:O:C in a range of 100:100 to 200:5 to 100, and the thickness in a range of 5 to 300 nm.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: December 28, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Sayaka Kawashima, Minoru Komada, Shinya Satou
  • Patent number: 7442428
    Abstract: The main object of the present invention is to provide a gas barrier substrate having a high gas barrier property without a ruggedness, a pin hole or the like in the gas barrier layer. The present invention solves the problem by providing a gas barrier substrate having a base material, a planarization layer formed on the base material, and a gas barrier layer comprising a deposition film formed on the planarization layer.
    Type: Grant
    Filed: November 10, 2006
    Date of Patent: October 28, 2008
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Sayaka Kawashima, Minoru Komada, Keiji Tokunaga
  • Publication number: 20080050567
    Abstract: The main object of the present invention is to provide a barrier film having an extremely high barrier property and a good transparency, a laminated material using the above-mentioned barrier film, a packaging container, and an image display medium. The above-mentioned object is achieved by providing a barrier film comprising a base material film and a barrier layer deposited on at least one side surface of the base material film, wherein the barrier layer comprises a water repellent layer and a dense layer, the water repellent layer is a silicon oxide carbide film having the atomic percent of Si:O:C in a range of 100:40 to 120:80 to 160, and the thickness in a range of 2 to 300 nm, and the dense layer is a silicon oxide carbide film having the atomic percent of Si:O:C in a range of 100:100 to 200:5 to 100, and the thickness in a range of 5 to 300 nm.
    Type: Application
    Filed: July 26, 2007
    Publication date: February 28, 2008
    Inventors: Sayaka Kawashima, Minoru Komada, Shinya Satou
  • Patent number: 7288311
    Abstract: A barrier film is provided having extremely high barrier properties and a good transparency as part of a laminated material having use as a packaging container which may possess an image display medium, the high barrier properties and good transparency which are achieved with a barrier film comprised of a base material film and a barrier layer deposited on at least one side surface of the base material film, with the barrier layer comprising a water repellent layer and a dense layer, the water repellent layer being a silicon oxide carbide film having the atomic percent of Si:O:C in a range of 100:40 to 120:80 to 160, and the thickness in a range of 2 to 300 nm, and the dense layer being a silicon oxide carbide film having the atomic percent of Si:O:C in a range of 100:100 to 200:5 to 100, and the thickness in a range of 5 to 300 nm.
    Type: Grant
    Filed: February 9, 2004
    Date of Patent: October 30, 2007
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Sayaka Kawashima, Minoru Komada, Shinya Satou
  • Patent number: 7229703
    Abstract: The main object of the present invention is to provide a gas barrier substrate having a high gas barrier property without a ruggedness, a pin hole or the like in the gas barrier layer. The present invention solves the problem by providing a gas barrier substrate having a base material, a planarization layer formed on the base material, and a gas barrier layer comprising a deposition film formed on the planarization layer.
    Type: Grant
    Filed: March 26, 2004
    Date of Patent: June 12, 2007
    Assignee: Dai Nippon Printing Co. Ltd.
    Inventors: Sayaka Kawashima, Minoru Komada, Keiji Tokunaga
  • Publication number: 20070059491
    Abstract: The main object of the present invention is to provide a gas barrier substrate having a high gas barrier property without a ruggedness, a pin hole or the like in the gas barrier layer. The present invention solves the problem by providing a gas barrier substrate having a base material, a planarization layer formed on the base material, and a gas barrier layer comprising a deposition film formed on the planarization layer.
    Type: Application
    Filed: November 10, 2006
    Publication date: March 15, 2007
    Inventors: Sayaka Kawashima, Minoru Komada, Keiji Tokunaga
  • Publication number: 20050029513
    Abstract: The main object of the present invention is to provide a gas barrier substrate having a high gas barrier property without a ruggedness, a pin hole or the like in the gas barrier layer. The present invention solves the problem by providing a gas barrier substrate having a base material, a planarization layer formed on the base material, and a gas barrier layer comprising a deposition film formed on the planarization layer.
    Type: Application
    Filed: March 26, 2004
    Publication date: February 10, 2005
    Inventors: Sayaka Kawashima, Minoru Komada, Keiji Tokunaga
  • Publication number: 20040253451
    Abstract: The main object of the present invention is to provide a barrier film having an extremely high barrier property and a good transparency, a laminated material using the above-mentioned barrier film, a packaging container, and an image display medium.
    Type: Application
    Filed: February 9, 2004
    Publication date: December 16, 2004
    Inventors: Sayaka Kawashima, Minoru Komada, Shinya Satou