Patents by Inventor Hitoshi Mashiko

Hitoshi Mashiko 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).

  • Cylindrical sputtering target, ceramic sintered body, and process for producing sintered body
    Patent number: 8206561
    Abstract: A hollow cylindrical ceramic sintered body having high density, a process for producing the sintered boy, and a cylindrical ceramic sputtering target having high quality without cracks or breakage, are disclosed. The hollow cylindrical ceramic sintered body is obtained by placing a cylindrical ceramic molding to be sintered on a plate-like ceramic molding having a coefficient of sintering shrinkage similar to that of the cylindrical ceramic molding, and then sintering the resulting assembly, thereby obtaining a hollow cylindrical ceramic sintered body having a relative density of 95% or higher. The cylindrical ceramic sputtering target is prepared using the hollow cylindrical ceramic sintered body.
    Type: Grant
    Filed: March 7, 2005
    Date of Patent: June 26, 2012
    Assignee: Tosoh Corporation
    Inventors: Kenichi Itoh, Hitoshi Mashiko, Tetsuo Shibutami
  • Cylindrical sputtering target, ceramic sintered body, and process for producing sintered body
    Publication number: 20060151321
    Abstract: A hollow cylindrical ceramic sintered body having high density, a process for producing the sintered boy, and a cylindrical ceramic sputtering target having high quality without cracks or breakage, are disclosed. The hollow cylindrical ceramic sintered body is obtained by placing a cylindrical ceramic molding to be sintered on a plate-like ceramic molding having a coefficient of sintering shrinkage similar to that of the cylindrical ceramic molding, and then sintering the resulting assembly, thereby obtaining a hollow cylindrical ceramic sintered body having a relative density of 95% or higher. The cylindrical ceramic sputtering target is prepared using the hollow cylindrical ceramic sintered body.
    Type: Application
    Filed: March 7, 2005
    Publication date: July 13, 2006
    Inventors: Kenichi Itoh, Hitoshi Mashiko, Tetsuo Shibutami