Patents by Inventor Yuji Uchimura

Yuji Uchimura 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: 11826988
    Abstract: There is provided an inter layer film for laminated glass with which the flexural rigidity of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and is provided with a first layer containing a polyvinyl acetal resin and a plasticizer, and the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is less than or equal to 250 cm?1 and the content of the plasticizer contained in the first layer relative to 100 parts by weight of the polyvinyl acetal resin contained in the first layer is greater than or equal to 5 parts by weight and less than 30 parts by weight, or the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is greater than 250 cm?1.
    Type: Grant
    Filed: February 10, 2021
    Date of Patent: November 28, 2023
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Tatsuya Iwamoto, Daizou Ii, Yuji Uchimura, Nami Minakuchi
  • Publication number: 20210162715
    Abstract: There is provided an inter layer film for laminated glass with which the flexural rigidity of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and is provided with a first layer containing a polyvinyl acetal resin and a plasticizer, and the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is less than or equal to 250 cm?1 and the content of the plasticizer contained in the first layer relative to 100 parts by weight of the polyvinyl acetal resin contained in the first layer is greater than or equal to 5 parts by weight and less than 30 parts by weight, or the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is greater than 250 cm?1.
    Type: Application
    Filed: February 10, 2021
    Publication date: June 3, 2021
    Inventors: Tatsuya Iwamoto, Daizou Ii, Yuji Uchimura, Nami Minakuchi
  • Patent number: 10946620
    Abstract: There is provided an interlayer film for laminated glass with which the flexural rigidity of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and is provided with a first layer containing a polyvinyl acetal resin and a plasticizer, and the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is less than or equal to 250 cm?1 and the content of the plasticizer contained in the first layer relative to 100 parts by weight of the polyvinyl acetal resin contained in the first layer is greater than or equal to 5 parts by weight and less than 30 parts by weight, or the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is greater than 250 cm?1.
    Type: Grant
    Filed: January 15, 2015
    Date of Patent: March 16, 2021
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Tatsuya Iwamoto, Daizou Ii, Yuji Uchimura, Nami Minakuchi
  • Patent number: 10421255
    Abstract: There is provided an interlayer film for laminated glass with which the HIC can be effectively lowered. The interlayer film for laminated glass according to the present invention includes a thermoplastic resin and a plasticizer, and when the interlayer film is sandwiched between two sheets of clear glass in accordance with JIS R3202 to obtain a sheet of laminated glass, the flexural modulus at 23° C. of the resulting sheet of laminated glass is 5000 MPa or more and 10000 MPa or less.
    Type: Grant
    Filed: September 30, 2015
    Date of Patent: September 24, 2019
    Assignee: SEKISUI CHEMICAL CO., LTD.
    Inventors: Hiroyuki Hirano, Yuji Uchimura, Shougo Yoshida, Akira Mizumori
  • Publication number: 20170297309
    Abstract: There is provided a resin film for bonding glass plate members with which, when bonded to a glass plate, breakage of the resulting glass plate-containing laminate due to impact can be suppressed. The resin film for bonding glass plate members according to the present invention is a resin film bonded to a glass plate to be used and includes a thermoplastic resin and a plasticizer, and the tensile elongation at 25° C. under a stress load of 50 N is 120 mm or more in a tensile test in accordance with JIS K7113.
    Type: Application
    Filed: September 30, 2015
    Publication date: October 19, 2017
    Inventors: Shougo Yoshida, Yuji Uchimura, Akira Mizumori, Hiroyuki Hirano
  • Publication number: 20170225435
    Abstract: There is provided an interlayer film for laminated glass with which the HIC can be effectively lowered. The interlayer film for laminated glass according to the present invention includes a thermoplastic resin and a plasticizer, and when the interlayer film is sandwiched between two sheets of clear glass in accordance with JIS R3202 to obtain a sheet of laminated glass, the flexural modulus at 23° C. of the resulting sheet of laminated glass is 5000 MPa or more and 10000 MPa or less.
    Type: Application
    Filed: September 30, 2015
    Publication date: August 10, 2017
    Inventors: Hiroyuki Hirano, Yuji Uchimura, Shougo Yoshida, Akira Mizumori
  • Publication number: 20160311199
    Abstract: There is provided an interlayer film for laminated glass with which the flexural rigidity of laminated glass can be enhanced. The interlayer film for laminated glass according to the present invention has a one-layer structure or a two or more-layer structure and is provided with a first layer containing a polyvinyl acetal resin and a plasticizer, and the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is less than or equal to 250 cm?1 and the content of the plasticizer contained in the first layer relative to 100 parts by weight of the polyvinyl acetal resin contained in the first layer is greater than or equal to 5 parts by weight and less than 30 parts by weight, or the half-value width of the hydroxyl group of the polyvinyl acetal resin contained in the first layer is greater than 250 cm?1.
    Type: Application
    Filed: January 15, 2015
    Publication date: October 27, 2016
    Inventors: Tatsuya Iwamoto, Daizou Ii, Yuji Uchimura, Nami Minakuchi
  • Publication number: 20160279905
    Abstract: Provided is an interlayer film for laminated glass which can improve the penetration resistance of laminated glass. When two surfaces on both sides of the interlayer film for laminated glass according to the present invention have different glass transition temperatures respectively, a lower glass transition temperature (° C.) between the glass transition temperatures of the two surfaces on both sides of the interlayer film is denoted by X. When the two surfaces on both sides of the interlayer film have the same glass transition temperature, the glass transition temperature (° C.) of the two surfaces on both sides of the interlayer film is denoted by X. Furthermore, a tensile breaking energy (J/mm2) of the interlayer film is denoted by Y. In this case, X is equal to or higher than 20° C. and equal to or less than 50° C., and Y is equal to or greater than (0.043X+0.83) J/mm2.
    Type: Application
    Filed: January 15, 2015
    Publication date: September 29, 2016
    Inventors: Tatsuya Iwamoto, Yuji Uchimura
  • Publication number: 20160243797
    Abstract: There is provided an interlayer film for laminated glass with which the penetration resistance of laminated glass can be enhanced. A interlayer film for laminated glass according to the present invention is provided with a first layer including a polyvinyl acetal resin and a plasticizer and a second layer being arranged on a first surface side of the first layer and including a polyvinyl acetal resin, and a plasticizer, the hydroxyl content of the above-mentioned polyvinyl acetal resin included in the first layer is higher than the hydroxyl content of the above-mentioned polyvinyl acetal resin included in the second layer, and the content of the above-mentioned plasticizer included in the first layer relative to 100 parts by weight of the above-mentioned polyvinyl acetal resin included in the first layer is less than the content of the above-mentioned plasticizer included in the second layer relative to 100 parts by weight of the above-mentioned polyvinyl acetal resin included in the second layer.
    Type: Application
    Filed: September 30, 2014
    Publication date: August 25, 2016
    Inventors: Tatsuya Iwamoto, Yuji Uchimura