Patents by Inventor Mitsuharu Kamikawaji

Mitsuharu Kamikawaji 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).

  • Method of manufacturing magnesium alloy molded product, painted structure thereof, method of painting the same, and casings using the same
    Patent number: 6669900
    Abstract: There are provided a painted structure of a magnesium alloy molded product having an aesthetic appearance, a painting method of forming the patented structure of the magnesium alloy molded product having an aesthetic appearance, and a casing fabricated using the magnesium alloy molded product. The painted structure of the magnesium alloy molded product has flow marks of which maximum depth is 100 &mgr;m and maximum opening width is 0.5 mm. An anticorrosive film is formed on a surface of the magnesium alloy molded product, and a painted film having an average surface roughness of 10 &mgr;m or more and a thickness of 80 &mgr;m or more is formed on a surface of the anticorrosive film.
    Type: Grant
    Filed: December 6, 2001
    Date of Patent: December 30, 2003
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Koji Matsunaga, Yukio Nishikawa, Naohiro Shikata, Mitsuharu Kamikawaji, Keizou Matsumura, Akira Takara
  • Method of manufacturing magnesium alloy molded product, painted structure thereof, method of painting the same, and casings using the same
    Publication number: 20020069940
    Abstract: There are provided a painted structure of a magnesium alloy molded product having an aesthetic appearance, a painting method of forming the patented structure of the magnesium alloy molded product having an aesthetic appearance, and a casing fabricated using the magnesium alloy molded product. The painted structure of the magnesium alloy molded product has flow marks of which maximum depth is 100 &mgr;m and maximum opening width is 0.5 mm. An anticorrosive film is formed on a surface of the magnesium alloy molded product, and a painted film having an average surface roughness of 10 &mgr;m or more and a thickness of 80 &mgr;m or more is formed on a surface of the anticorrosive film.
    Type: Application
    Filed: December 6, 2001
    Publication date: June 13, 2002
    Applicant: MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.
    Inventors: Koji Matsunaga, Yukio Nishikawa, Naohiro Shikata, Mitsuharu Kamikawaji, Keizou Matsumura, Akira Takara