Patents by Inventor Keishi Tano

Keishi Tano 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).

  • Gauge block
    Patent number: 6516532
    Abstract: A gauge block, which has excellent abrasion and corrosion resistances without time-dependent changes in dimension and which can be produced inexpensively; created using a raw steel material, heat treating at least one reference surface, then finish polishing it, and ion plating a super thin DLC film over its surface.
    Type: Grant
    Filed: April 10, 2002
    Date of Patent: February 11, 2003
    Assignee: Mitutoyo Corporation
    Inventor: Keishi Tano
  • Gauge block
    Publication number: 20020108262
    Abstract: A gauge block, which has excellent abrasion and corrosion resistances without time-dependent changes in dimension and which can be produced inexpensively; created using a raw steel material, heat treating at least one reference surface, then finish polishing it, and ion plating a super thin DLC film over its surface.
    Type: Application
    Filed: April 10, 2002
    Publication date: August 15, 2002
    Applicant: Mitutoyo Corporation
    Inventor: Keishi Tano
  • Gauge block
    Patent number: 6427355
    Abstract: A gauge block which has excellent abrasion and corrosion resistances without time-dependent changes in dimension that can be produced inexpensively. A method of producing the gauge block using raw steel and processing it into a gauge block body, then finish polishing it, and ion plating a super thin DLC film (2) over its surface.
    Type: Grant
    Filed: January 13, 2000
    Date of Patent: August 6, 2002
    Assignee: Mitutoyo Corporation
    Inventor: Keishi Tano