Patents by Inventor Madoka NITTA

Madoka NITTA 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: 9868160
    Abstract: The present invention provides a more practical hard-coated cutting tool having improved cutting performance during finishing so as to obtain a better finished surface. Provided is a hard-coated cutting tool including a tool body (7) coated with a hard coating (4) and having a cutting edge (3) formed on a ridge line intersecting a flank face (1) and a rake face (2). In the hard-coated cutting tool, the thickness h1 of the hard coating (4) on the flank face (1) side and the thickness h2 of the hard coating (4) on the rake face (2) side near the cutting edge (3) satisfies conditions 8 ?m?h1?30 ?m and 0?h2/h1?0.5 in a cross-section perpendicular to the cutting edge (3) in a range equal to or less than 0.3 times the tool diameter in the axial direction from the tip of the tool.
    Type: Grant
    Filed: October 6, 2014
    Date of Patent: January 16, 2018
    Assignee: UNION TOOL CO.
    Inventors: Hideki Osaki, Shuntaro Suzuki, Madoka Nitta, Hidehito Watanabe
  • Publication number: 20150117972
    Abstract: The present invention provides a more practical hard-coated cutting tool having improved cutting performance during finishing so as to obtain a better finished surface. Provided is a hard-coated cutting tool including a tool body (7) coated with a hard coating (4) and having a cutting edge (3) formed on a ridge line intersecting a flank face (1) and a rake face (2). In the hard-coated cutting tool, the thickness h1 of the hard coating (4) on the flank face (1) side and the thickness h2 of the hard coating (4) on the rake face (2) side near the cutting edge (3) satisfies conditions 8 ?m?h1?30 ?m and 0?h2/h1?0.5 in a cross-section perpendicular to the cutting edge (3) in a range equal to or less than 0.3 times the tool diameter in the axial direction from the tip of the tool.
    Type: Application
    Filed: October 6, 2014
    Publication date: April 30, 2015
    Applicant: UNION TOOL CO.
    Inventors: Hideki OSAKI, Shuntaro SUZUKI, Madoka NITTA, Hidehito WATANABE