Patents by Inventor Ikuka Chiba

Ikuka Chiba 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 producing spherical oxide powder
    Patent number: 7374704
    Abstract: The present invention provides a production method of spherical oxide powder which includes a feeding step in which a granular powder composed of an oxide composition is fed into a combustion flame together with a carrier gas; a melting step in which said fed granular powder is melted in said combustion flame to obtain a melt; and a solidifying step in which said melt is solidified by being moved and placed outside said combustion flame.
    Type: Grant
    Filed: July 26, 2002
    Date of Patent: May 20, 2008
    Assignee: TDK Corporation
    Inventors: Shenglei Che, Ikuka Chiba, Shigeo Okamoto, Tomohiro Sogabe
  • Composite deelectric material and substrate
    Publication number: 20060211800
    Abstract: An oxide of a transition metal element having at least two valences less than 4 is contained in a spherical dielectric ceramic powder. According to a composite dielectric material using the dielectric ceramic powder, the electric resistivity can be made to take such a high value as 1.0×1012 ?·cm or more while satisfactory dielectric properties are being maintained.
    Type: Application
    Filed: December 26, 2003
    Publication date: September 21, 2006
    Inventors: Keisuke Itakura, Isao Kanada, Ikuka Chiba, Masayoshi Inoue, Mio Ozawa, Shenglei Che
  • Method of producing spherical oxide powder and apparatus for producing spherical powder, composite dielectric material, and substrate and process for poducing substrate
    Publication number: 20040180991
    Abstract: The present invention provides a production method of spherical oxide powder which includes a feeding step in which a granular powder composed of an oxide composition is fed into a combustion flame together with a carrier gas; a melting step in which said fed granular powder is melted in said combustion flame to obtain a melt; and a solidifying step in which said melt is solidified by being moved and placed outside said combustion flame.
    Type: Application
    Filed: May 10, 2004
    Publication date: September 16, 2004
    Inventors: Shenglei Che, Ikuka Chiba, Shigeo Okamoto, Tomohiro Sogabe