Patents by Inventor Masamitu Nishikawa

Masamitu Nishikawa 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).

  • Apparatus for inspecting the surface of a material
    Patent number: 4764969
    Abstract: An apparatus for inspecting the surface of a material having a first inspection section for inspecting the wide surface condition of a material with an analysis, a second inspection section for inspecting specific position's conditions of the surface of the material with finer analysis than that of the first inspection section, and a controller for controlling an inspecting position of the second inspection section to inspect an unusual position after the first inspection section finds the unusual position.
    Type: Grant
    Filed: January 27, 1987
    Date of Patent: August 16, 1988
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Ko Ohtombe, Masamitu Nishikawa