Patents by Inventor Koutarou Kitayama

Koutarou Kitayama 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).

  • Patent number: 7255775
    Abstract: There is provided a semiconductor wafer treatment member in which the occurrence of slippage thereof is prevented and which has an adequate cohesiveness onto the semiconductor wafer and an excellent durability. The semiconductor wafer treatment member A of the present invention has at least a surface formed with a silicon carbide (SiC) film thereon, comprising a support portion for receiving a semiconductor wafer, said support portion being composed of salients with which said semiconductor wafer substantially comes into contact; and depressions formed with the silicon carbide (SiC) film to provide a coverage area between said salients, said salients being formed with top surfaces having a surface roughness Ra of 0.05 ?m to 1.3 ?m.
    Type: Grant
    Filed: June 26, 2003
    Date of Patent: August 14, 2007
    Assignee: Toshiba Ceramics Co., Ltd.
    Inventors: Masanari Yokogawa, Hirotaka Hagihara, Shinya Wagatsuma, Koutarou Kitayama, Chieko Fujiwara
  • Publication number: 20040089236
    Abstract: There is provided a semiconductor wafer treatment member in which the occurrence of slippage thereof is prevented and which has an adequate cohesiveness onto the semiconductor wafer and an excellent durability. The semiconductor wafer treatment member A of the present invention has at least a surface formed with a silicon carbide (SiC) film thereon, comprising a support portion for receiving a semiconductor wafer, said support portion being composed of salients with which said semiconductor wafer substantially comes into contact; and depressions formed with the silicon carbide (SiC) film to provide a coverage area between said salients, said salients being formed with top surfaces having a surface roughness Ra of 0.05 &mgr;m to 1.3 &mgr;m.
    Type: Application
    Filed: June 26, 2003
    Publication date: May 13, 2004
    Applicant: TOSHIBA CERAMICS CO., LTD.
    Inventors: Masanari Yokogawa, Hirotaka Hagihara, Shinya Wagatsuma, Koutarou Kitayama, Chieko Fujiwara