Patents by Inventor Tomio Kajita

Tomio Kajita 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).

  • RESIN-COATED HOT DIP GALVANIZED STEEL SHEET SUPERIOR IN WELDABILITY AND CORROSION REISTANCE AND METHOD FOR PRODUCING THE SAME
    Publication number: 20090130431
    Abstract: A resin film is formed on the surface of a hot dip galvanized steel sheet by applying emulsion of a polyolefin copolymer resin molecular-associated by ion cluster to the steel sheet surface. The resin film contains, in terms of solids content, 10 to 55 mass % of silica particles, 1 to 8 mass % of a crosslinking agent, and 1 to 8 mass % of tannic acid and/or ammonium vanadate. The resin-coated hot dip galvanized steel sheet is capable of exhibiting well-balanced superior characteristics in weldability, corrosion resistance, and machinability.
    Type: Application
    Filed: December 29, 2008
    Publication date: May 21, 2009
    Applicant: Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
    Inventors: Minoru Chida, Tadashige Nakamoto, Hidekazu Ido, Atsushi Kihara, Tomio Kajita, Masashi Imahori
  • RESIN-COATED HOT DIP GALVANIZED STEEL SHEET SUPERIOR IN WELDABILITY AND CORROSION REISTANCE AND METHOD FOR PRODUCING THE SAME
    Publication number: 20080107910
    Abstract: A resin film is formed on the surface of a hot dip galvanized steel sheet by applying emulsion of a polyolefin copolymer resin molecular-associated by ion cluster to the steel sheet surface. The resin film contains, in terms of solids content, 10 to 55 mass % of silica particles, 1 to 8 mass % of a crosslinking agent, and 1 to 8 mass % of tannic acid and/or ammonium vanadate. The resin-coated hot dip galvanized steel sheet is capable of exhibiting well-balanced superior characteristics in weldability, corrosion resistance, and machinability.
    Type: Application
    Filed: December 31, 2007
    Publication date: May 8, 2008
    Applicant: Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
    Inventors: Minoru CHIDA, Tadashige NAKAMOTO, Hidekazu IDO, Atsushi KIHARA, Tomio KAJITA, Masashi IMAHORI
  • Resin-coated hot dip galvanized steel sheet superior in weldability and corrosion resistance and method for producing the same
    Publication number: 20040101697
    Abstract: A resin film is formed on the surface of a hot dip galvanized steel sheet by applying emulsion of a polyolefin copolymer resin molecular-associated by ion cluster to the steel sheet surface. The resin film contains, in terms of solids content, 10 to 55 mass % of silica particles, 1 to 8 mass % of a crosslinking agent, and 1 to 8 mass % of tannic acid and/or ammonium vanadate. The resin-coated hot dip galvanized steel sheet is capable of exhibiting well-balanced superior characteristics in weldability, corrosion resistance, and machinability.
    Type: Application
    Filed: November 3, 2003
    Publication date: May 27, 2004
    Applicant: Kabushiki Kaisha Kobe Seiko Sho(Kobe Steel, Ltd.)
    Inventors: Minoru Chida, Tadashige Nakamoto, Hidekazu Ido, Atsushi Kihara, Tomio Kajita, Masashi Imahori