Patents by Inventor Norio Akita

Norio Akita 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: 8293348
    Abstract: There is provided a multilayer laminate film with easy unsealability, heat resistance and easy cuttability, having a seal layer (A) and a base material layer (B), the multilayer laminate film containing the seal layer (A) and the base material layer (B) composed of a mixture of 10-50 parts by weight of high-density polyethylene and 50-90 parts by weight of polypropylene, laminated on the seal layer (A) in one layer or two or more layers, wherein the base material layer (B) is composed of one member selected from the group consisting of (a) an ethylene/butene copolymer with a density of 0.93 g/cm3-0.94 g/cm3, polymerized using a multisite catalyst, (b) high-density polyethylene with a density of 0.945 g/cm3-0.965 g/cm3 and (c) an ethylene/propylene block or random copolymer, further wherein the layer thickness of the seal layer (A) is 1 ?m-20 ?m while the layer thickness of the base material layer (B) is 20 ?m-100 ?m, as well as a packaging container and packaging bag employing it as a lid material.
    Type: Grant
    Filed: October 29, 2008
    Date of Patent: October 23, 2012
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Masato Yuno, Kaoru Watanabe, Norio Akita, Shigeki Matsui, Satoshi Oosone, Kozo Mita
  • Publication number: 20100296757
    Abstract: There is provided a multilayer laminate film with easy unsealability, heat resistance and easy cuttability, having a seal layer (A) and a base material layer (B), the multilayer laminate film containing the seal layer (A) and the base material layer (B) composed of a mixture of 10-50 parts by weight of high-density polyethylene and 50-90 parts by weight of polypropylene, laminated on the seal layer (A) in one layer or two or more layers, wherein the base material layer (B) is composed of one member selected from the group consisting of (a) an ethylene/butene copolymer with density of 0.93 g/cm3-0.94 g/cm3, polymerized using multisite catalyst, (b) high-density polyethylene with a density of 0.945 g/cm3-0.965 g/cm3 and (c) an ethylene/propylene block or random copolymer, further wherein the layer thickness of the seal layer (A) is 1 ?m-20 ?m while the layer thickness of the base material layer (B) is 20 ?m-100 ?m, as well as a packaging container and packaging bag employing it as a lid material.
    Type: Application
    Filed: October 29, 2008
    Publication date: November 25, 2010
    Inventors: Masato Yuno, Kaoru Watanabe, Norio Akita, Shigeki Matsui, Satoshi Oosone, Kozo Satoshi Mita
  • Patent number: 7811669
    Abstract: There are provided a gas barrier laminated film, which is transparent while possessing excellent gas barrier properties and, at the same time, has excellent impact resistance, and a process for producing the same. The gas barrier laminated film comprises a base material, a vapor deposited film of an inorganic oxide provided on the base material, and a gas barrier coating film provided on the vapor deposited film. The gas barrier laminated film is characterized in that the base material on its side where the vapor deposited film is provided, has been subjected to pretreatment or primer coating treatment, and the gas barrier coating film has been formed by coating a gas barrier coating liquid onto the inorganic oxide film and then heating the coating.
    Type: Grant
    Filed: August 15, 2005
    Date of Patent: October 12, 2010
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventors: Hitoshi Fujii, Norio Akita, Ayumi Shibata, Daidou Chiba, Koichi Mikami, Hisashi Sakamoto
  • Publication number: 20070269664
    Abstract: There are provided a gas barrier laminated film, which is transparent while possessing excellent gas barrier properties and, at the same time, has excellent impact resistance, and a process for producing the same. The gas barrier laminated film comprises a base material, a vapor deposited film of an inorganic oxide provided on the base material, and a gas barrier coating film provided on the vapor deposited film. The gas barrier laminated film is characterized in that the base material on its side where the vapor deposited film is provided, has been subjected to pretreatment or primer coating treatment, and the gas barrier coating film has been formed by coating a gas barrier coating liquid onto the inorganic oxide film and then heating the coating.
    Type: Application
    Filed: April 29, 2005
    Publication date: November 22, 2007
    Applicant: Sai Nippon Printing Co., Ltd.
    Inventors: Hitoshi Fujii, Norio Akita, Ayumi Shibata, Daidou Chiba, Koichi Mikami, Hisashi Sakamoto