Patents by Inventor Satoshi Yamakoshi

Satoshi Yamakoshi 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: 10053566
    Abstract: A pelletized resin composition according to the present invention contains an ethylene-vinyl alcohol resin (A), a polyamide (B), and a lower fatty acid magnesium salt (C) each in a specific amount, wherein the polyamide resin (B) is dispersed in the ethylene-vinyl alcohol resin (A) with an average dispersed particle diameter of 1 ?m or less as determined using an electron microscope, and the lower fatty acid magnesium salt (C) is dispersed in both the ethylene-vinyl alcohol resin (A) and the polyamide resin (B). Accordingly, a pelletized resin composition that is superior in hue can be obtained. In addition, a film that is superior in thermal stability in the film formation, the appearance immediately after the film formation, and the appearance after the heating treatment is obtained.
    Type: Grant
    Filed: May 12, 2015
    Date of Patent: August 21, 2018
    Assignee: KURARAY CO., LTD.
    Inventors: Satoshi Yamakoshi, Naoki Kawakami
  • Patent number: 9873238
    Abstract: Disclosed is an inner liner for a pneumatic tire, the inner liner including no less than 8 resin-layers, the resin-layer having a layer A constituted with a resin composition containing a gas barrier resin, and a layer B constituted with a resin composition containing an elastomer, at least one of the resin compositions included in the layer A and the layer B that are adjacent with each other containing a metal salt, the content of the metal salt being no less than 1 ppm and no greater than 10,000 ppm in terms of metal element equivalent, and an interlayer adhesive force between the layer A and the layer B being no less than 500 g/15 mm. The layer A and the layer B are preferably alternately laminated.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: January 23, 2018
    Assignees: KURARAY CO., LTD., Bridgestone Corporation
    Inventors: Shinji Tai, Hiroshi Kawai, Satoshi Yamakoshi, Kouta Isoyama, Masao Hikasa, Yuwa Takahashi, Hideki Kitano, Tetsuo Amamoto, Takatsugu Tanaka
  • Publication number: 20170267851
    Abstract: A pelletized resin composition according to the present invention contains an ethylene-vinyl alcohol resin (A), a polyamide (B), and a lower fatty acid magnesium salt (C) each in a specific amount, wherein the polyamide resin (B) is dispersed in the ethylene-vinyl alcohol resin (A) with an average dispersed particle diameter of 1 ?m or less as determined using an electron microscope, and the lower fatty acid magnesium salt (C) is dispersed in both the ethylene-vinyl alcohol resin (A) and the polyamide resin (B). Accordingly, a pelletized resin composition that is superior in hue can be obtained. In addition, a film that is superior in thermal stability in the film formation, the appearance immediately after the film formation, and the appearance after the heating treatment is obtained.
    Type: Application
    Filed: May 12, 2015
    Publication date: September 21, 2017
    Applicant: KURARAY CO., LTD.
    Inventors: Satoshi YAMAKOSHI, Naoki KAWAKAMI
  • Patent number: 9744748
    Abstract: An object of the invention is to provide a multilayered structure having very superior gas barrier properties and being excellent in flex resistance, pinhole resistance, stretchability, thermoformability and interlayer adhesiveness, and having superior durability enabling characteristics such as high gas barrier properties to be maintained even if used with deformation such as flexion and/or stretching, and to provide a laminate in which the multilayered structure is used, and a production method thereof. Provided by the present invention is a multilayered structure in which at least 4 resin-layers constituted with a resin composition containing an ethylene-vinyl alcohol copolymer are contiguously laminated. A single layer of the resin layer has an average thickness of preferably no less than 0.01 ?m and no greater than 10 ?m. The average thickness is preferably no less than 0.1 ?m and no greater than 1,000 ?m.
    Type: Grant
    Filed: March 30, 2011
    Date of Patent: August 29, 2017
    Assignee: KURARAY CO., LTD.
    Inventors: Shinji Tai, Hiroshi Kawai, Satoshi Yamakoshi, Kouta Isoyama, Masao Hikasa
  • Patent number: 9186873
    Abstract: Disclosed is a multilayered structure that includes no less than 8 resin-layers, the resin-layer including a layer A constituted with a resin composition containing a gas barrier resin, and a layer B constituted with a resin composition containing a thermoplastic resin, at least one of the resin compositions included in the layer A and the layer B that are adjacent with each other containing a metal salt, the content of the metal salt being no less than 1 ppm and no greater than 10,000 ppm in terms of metal element equivalent, and an interlayer adhesive force between the layer A and the layer B being no less than 450 g/15 mm. The layer A and the layer B may be alternately laminated. Moreover, the average thickness of single layer of at least one selected from the layer A and the layer B is preferably no less than 0.01 ?m and no greater than 10 ?m.
    Type: Grant
    Filed: November 30, 2010
    Date of Patent: November 17, 2015
    Assignee: KURARAY CO., LTD.
    Inventors: Shinji Tai, Hiroshi Kawai, Satoshi Yamakoshi, Kouta Isoyama, Masao Hikasa, Kentaro Yoshida
  • Publication number: 20150004395
    Abstract: An object of the present invention is to provide a vapor-deposited film that enables the formation of a pinhole and/or a crack due to flexure thereof in a processing of the vapor-deposited film such as lamination to be suppressed, and the deterioration of the gas barrier property thereof to be inhibited. The present invention relates to a vapor-deposited film including a substrate film that contains a polyvinyl alcohol polymer, and a metal vapor-deposited layer provided on the substrate film, a mean particle size in the metal vapor-deposited layer as determined using an electron microscope being 150 nm or less. The average thickness of the metal vapor-deposited layer is preferably 30 nm or more and 100 nm or less.
    Type: Application
    Filed: February 20, 2013
    Publication date: January 1, 2015
    Applicant: KURARAY CO., LTD.
    Inventors: Yasuhiro Nonaka, Hiroshi Kawai, Satoshi Yamakoshi
  • Publication number: 20130017383
    Abstract: An object of the invention is to provide a multilayered structure having very superior gas barrier properties and being excellent in flex resistance, pinhole resistance, stretchability, thermoformability and interlayer adhesiveness, and having superior durability enabling characteristics such as high gas barrier properties to be maintained even if used with deformation such as flexion and/or stretching, and to provide a laminate in which the multilayered structure is used, and a production method thereof. Provided by the present invention is a multilayered structure in which at least 4 resin-layers constituted with a resin composition containing an ethylene-vinyl alcohol copolymer are contiguously laminated. A single layer of the resin layer has an average thickness of preferably no less than 0.01 ?m and no greater than 10 ?m. The average thickness is preferably no less than 0.1 ?m and no greater than 1,000 ?m.
    Type: Application
    Filed: March 30, 2011
    Publication date: January 17, 2013
    Inventors: Shinji Tai, Hiroshi Kawai, Satoshi Yamakoshi, Kouta Isoyama, Masao Hikasa
  • Publication number: 20120237742
    Abstract: Disclosed is an inner liner for a pneumatic tire, the inner liner including no less than 8 resin-layers, the resin-layer having a layer A constituted with a resin composition containing a gas barrier resin, and a layer B constituted with a resin composition containing an elastomer, at least one of the resin compositions included in the layer A and the layer B that are adjacent with each other containing a metal salt, the content of the metal salt being no less than 1 ppm and no greater than 10,000 ppm in terms of metal element equivalent, and an interlayer adhesive force between the layer A and the layer B being no less than 500 g/15 mm. The layer A and the layer B are preferably alternately laminated.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 20, 2012
    Applicants: BRIDGESTONE CORPORATION, KURARAY CO., LTD.
    Inventors: Shinji Tai, Hiroshi Kawai, Satoshi Yamakoshi, Kouta Isoyama, Masao Hikasa, Yuwa Takahashi, Hideki Kitano, Tetsuo Amamoto, Takatsugu Tanaka
  • Publication number: 20120237747
    Abstract: Disclosed is a multilayered structure that includes no less than 8 resin-layers, the resin-layer including a layer A constituted with a resin composition containing a gas barrier resin, and a layer B constituted with a resin composition containing a thermoplastic resin, at least one of the resin compositions included in the layer A and the layer B that are adjacent with each other containing a metal salt, the content of the metal salt being no less than 1 ppm and no greater than 10,000 ppm in terms of metal element equivalent, and an interlayer adhesive force between the layer A and the layer B being no less than 450 g/15 mm. The layer A and the layer B may be alternately laminated. Moreover, the average thickness of single layer of at least one selected from the layer A and the layer B is preferably no less than 0.01 ?m and no greater than 10 ?m.
    Type: Application
    Filed: November 30, 2010
    Publication date: September 20, 2012
    Applicant: KURARAY CO., LTD.
    Inventors: Shinji Tai, Hiroshi Kawai, Satoshi Yamakoshi, Kouta Isoyama, Masao Hikasa, Kentaro Yoshida