Patents by Inventor Takao Ooshima

Takao Ooshima 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).

  • Surface-treated steel sheet with excellent corrosion resistance and method for manufacturing same
    Patent number: 8012599
    Abstract: The surface-treated steel sheet has a zinc-based plated steel sheet, a surface-treatment coating being formed on the surface of the zinc-based steel sheet by applying and drying a surface treatment coating composition thereon, and a top coating being formed by applying and drying a coating composition for top coating on the surface-treatment coating. The surface treatment coating composition contains a water-epoxy resin dispersion, a silane coupling agent, and phosphoric acid and/or a hexafluorometal acid. The coating composition for top coating contains a high molecular weight epoxy group-containing resin having number average molecular weights ranging from 6000 to 20000.
    Type: Grant
    Filed: October 26, 2007
    Date of Patent: September 6, 2011
    Assignees: JFE Steel Corporation, Kansai Paint Co., Ltd.
    Inventors: Tatsuya Miyoshi, Kenichi Sasaki, Naoto Yoshimi, Akira Matsuzaki, Kazuhisa Okai, Takao Ooshima, Takashi Nakano, Masahiro Murata, Syoichi Tanaka
  • Highly corrosion-resistant surface-treated steel sheet and method for producing same
    Patent number: 7517591
    Abstract: The surface-treated steel sheet has a zinc-based plated steel sheet, a surface-treatment coating being formed on the surface of the zinc-based steel sheet by applying and drying a surface treatment coating composition thereon, and a top coating being formed by applying and drying a coating composition for top coating on the surface-treatment coating. The surface treatment coating composition contains a water-epoxy resin dispersion, a silane coupling agent, and phosphoric acid and/or a hexafluorometal acid. The coating composition for top coating contains a high molecular weight epoxy group-containing resin having number average molecular weights ranging from 6000 to 20000.
    Type: Grant
    Filed: June 14, 2004
    Date of Patent: April 14, 2009
    Assignees: JFE Steel Corporation, Kansai Paint Co., Ltd.
    Inventors: Tatsuya Miyoshi, Kenichi Sasaki, Naoto Yoshimi, Akira Matsuzaki, Kazuhisa Okai, Takao Ooshima, Takashi Nakano, Masahiro Murata, Syoichi Tanaka
  • Surface-treated steel sheet with excellent corrosion resistance and method for manufacturing same
    Publication number: 20080070018
    Abstract: A surface-treated steel sheet has a zinc-based or an aluminum-based plated steel sheet, a surface-treatment coating being formed on the surface of the zinc-based or aluminum-based steel sheet by applying and drying a surface treatment coating composition thereon, and a top coating being formed by applying and drying a coating composition for top coating on the surface-treatment coating. The surface treatment coating composition contains a water-epoxy resin dispersion, a water dispersed polyurethane resin, a silane coupling agent, and phosphoric acid and/or a hexafluorometal acid. The coating composition for a top coating contains a high molecular weight epoxy group-containing resin average molecular weight of 6,000 to 20,000.
    Type: Application
    Filed: October 26, 2007
    Publication date: March 20, 2008
    Applicants: JFE STEEL CORPORATION, KANSAI PAINT CO., LTD.
    Inventors: Tatsuya Miyoshi, Kenichi Sasaki, Naoto Yoshimi, Akira Matsuzaki, Kazuhisa Okai, Takao Ooshima, Takashi Nakano, Masahiro Murata, Syoichi Tanaka
  • Highly corrosion-resistant surface-treated steel sheet and method for producing same
    Publication number: 20060141230
    Abstract: The surface-treated steel sheet has a zinc-based plated steel sheet, a surface-treatment coating being formed on the surface of the zinc-based steel sheet by applying and drying a surface treatment coating composition thereon, and a top coating being formed by applying and drying a coating composition for top coating on the surface-treatment coating. The surface treatment coating composition contains a water-epoxy resin dispersion, a silane coupling agent, and phosphoric acid and/or a hexafluorometal acid. The coating composition for top coating contains a high molecular weight epoxy group-containing resin having number average molecular weights ranging from 6000 to 20000.
    Type: Application
    Filed: June 14, 2004
    Publication date: June 29, 2006
    Applicant: JFE Steel Corporation
    Inventors: Tatsuya Miyoshi, Kenichi Sasaki, Naoto Yoshimi, Akira Matsuzaki, Kazuhisa Okai, Takao Ooshima, Takashi Nakano, Masahiro Murata, Syoichi Tanaka
  • Coating composition and coated metal plate having coating film formed therefrom
    Patent number: 6482536
    Abstract: The present invention relates to a coating composition containing 8 to 130 parts by weight of (B) silica fine particles having an oil absorption in the range of 30 to 200 ml/100 g and a pore volume in the range of 0.05 to 1.2 ml/g per 100 parts by weight of (A) a coating film-forming resin, a cured coating film formed from the coating composition having a glass transition temperature in the range of 40 to 125° C.; and a coated metal plate having a coating film formed from the above coating composition on the surface of a metal plate.
    Type: Grant
    Filed: October 13, 2000
    Date of Patent: November 19, 2002
    Assignee: Kansai Paint Co., Ltd.
    Inventors: Shoichi Tanaka, Takashi Nakano, Takao Ooshima, Masahiro Tada