Patents by Inventor Yuki AKAHOSHI

Yuki AKAHOSHI 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).

  • Drilling tip, drilling tool, and method of manufacturing drilling tip
    Patent number: 10900293
    Abstract: A drilling tip according to the disclosure has a tip body which is provided with a tip portion tapered toward a tip side of the tip body; and a hard layer which is formed on a surface of the tip portion of the tip body, an outermost layer of the hard layer is a cBN sintered material having 70 to 95 vol % of cBN grains, and when a cross-sectional structure of the outermost layer is observed, a binder phase having a width of 1 nm or greater and 30 nm or less and containing Al, B, and N, and in which a ratio of an O content to an Al content is 0.1 or less exists between neighboring cBN grains.
    Type: Grant
    Filed: April 19, 2017
    Date of Patent: January 26, 2021
    Assignee: MITSUBISHI MATERIALS CORPORATION
    Inventors: Wardoyo Akhmadi Eko, Masahiro Yano, Toshihiko Matsuo, Yuki Akahoshi, Yuichiro Takeuchi
  • DRILLING TIP, DRILLING TOOL, AND METHOD OF MANUFACTURING DRILLING TIP
    Publication number: 20190119988
    Abstract: A drilling tip according to the disclosure has a tip body which is provided with a tip portion tapered toward a tip side of the tip body; and a hard layer which is formed on a surface of the tip portion of the tip body, an outermost layer of the hard layer is a cBN sintered material having 70 to 95 vol % of cBN grains, and when a cross-sectional structure of the outermost layer is observed, a binder phase having a width of 1 nm or greater and 30 nm or less and containing Al, B, and N, and in which a ratio of an O content to an Al content is 0.1 or less exists between neighboring cBN grains.
    Type: Application
    Filed: April 19, 2017
    Publication date: April 25, 2019
    Applicant: MITSUBISHI MATERIALS CORPORATION
    Inventors: Wardoyo AKHMADI EKO, Masahiro YANO, Toshihiko MATSUO, Yuki AKAHOSHI, Yuichiro TAKEUCHI