Patents by Inventor Toru Hirotsu

Toru Hirotsu 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).

  • Glass substrate having primer layer formed thereon and anti-fogging article
    Patent number: 7638199
    Abstract: The present invention relates to a glass substrate which is characterized in that it has a primer layer that is formed thereon and includes a hydrolysis product of a hydrolysable silicon compound having an alkylene group and a hydrolysis product of a hydrolysable zirconium compound or hydrolysable titanium compound, and that, in the primer layer, zirconium is in an amount by weight ratio of 0.0002 times to 0.0025 times that of silicon, or titanium is in an amount by weight ratio of 0.0005 times to 0.0045 times that of silicon. Furthermore, the present invention relates to an anti-fogging article having a resin film that exhibits water-absorptive property and/or hydrophilic property and is formed on the primer layer of the glass substrate.
    Type: Grant
    Filed: November 25, 2004
    Date of Patent: December 29, 2009
    Assignee: Central Glass Company, Limited
    Inventors: Toshihiro Hirano, Toru Hirotsu, Noboru Murata, Masahiro Hirukawa, Nobuyuki Itakura
  • Glass substrate having primer layer formed thereon and anti-fogging article
    Publication number: 20070099000
    Abstract: The present invention relates to a glass substrate which is characterized in that it has a primer layer that is formed thereon and includes a hydrolysis product of a hydrolysable silicon compound having an alkylene group and a hydrolysis product of a hydrolysable zirconium compound or hydrolysable titanium compound, and that, in the primer layer, zirconium is in an amount by weight ratio of 0.0002 times to 0.0025 times that of silicon, or titanium is in an amount by weight ratio of 0.0005 times to 0.0045 times that of silicon. Furthermore, the present invention relates to an anti-fogging article having a resin film that exhibits water-absorptive property and/or hydrophilic property and is formed on the primer layer of the glass substrate.
    Type: Application
    Filed: November 25, 2004
    Publication date: May 3, 2007
    Applicant: Central Glass Company Limited
    Inventors: Toshihiro Hirano, Toru Hirotsu, Noboru Murata, Masahiro Hirukawa, Nobuyuki Itakura