Patents by Inventor Shota NOZAKI

Shota NOZAKI 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).

  • Publication number: 20220001457
    Abstract: To provide a surface-coated cutting tool exhibiting excellent wear resistance in a high-speed cutting process and having prolonged service life. The surface-coated cutting tool includes a tool substrate containing WC crystal grains and insulating grains, and a coating layer composed of a multiple nitride of Ti, Al, and V and disposed on the surface of the tool substrate. The multiple nitride is represented by a compositional formula: TiaAlbVcN satisfying the following relations: 0.25?a?0.35, 0.64?b?0.74, 0<c?0.06, and a+b+c=1 (wherein each of a, b, and c represents an atomic proportion). The coating layer is characterized by exhibiting a peak attributed to a hexagonal crystal phase and a peak attributed to a cubic crystal phase as observed through X-ray diffractometry.
    Type: Application
    Filed: November 27, 2019
    Publication date: January 6, 2022
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Shota NOZAKI, Ryoji TOYODA
  • Patent number: 11173555
    Abstract: To improve the adhesion resistance and wear resistance of a surface-coated cutting tool. The surface-coated cutting tool includes a tool substrate, and a single-component coating layer composed of a composite nitride of Cr (chromium), Al (aluminum), and V (vanadium) and disposed on the surface of the tool substrate. The composite nitride is characterized by being represented by a compositional formula: CraAlbVcN satisfying the following relations: 0.11?a?0.26; 0.73?b?0.85; 0<c?0.04; and a+b+c?1 (wherein a, b, and c each represent an atomic proportion). The single-component coating layer has both a hexagonal phase and a cubic phase.
    Type: Grant
    Filed: May 11, 2018
    Date of Patent: November 16, 2021
    Assignee: NGK SPARK PLUG CO., LTD.
    Inventors: Shota Nozaki, Fumihiro Kikkawa, Atsushi Komura
  • Publication number: 20200122248
    Abstract: To improve the adhesion resistance and wear resistance of a surface-coated cutting tool. The surface-coated cutting tool includes a tool substrate, and a single-component coating layer composed of a composite nitride of Cr (chromium), Al (aluminum), and V (vanadium) and disposed on the surface of the tool substrate. The composite nitride is characterized by being represented by a compositional formula: CraAlbVcN satisfying the following relations: 0.11?a?0.26; 0.73?b?0.85; 0<c?0.04; and a+b+c?1 (wherein a, b, and c each represent an atomic proportion). The single-component coating layer has both a hexagonal phase and a cubic phase.
    Type: Application
    Filed: May 11, 2018
    Publication date: April 23, 2020
    Applicant: NGK SPARK PLUG CO., LTD.
    Inventors: Shota NOZAKI, Fumihiro KIKKAWA, Atsushi KOMURA