Patents by Inventor Takuya ASANUMA

Takuya ASANUMA 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).

  • Shaped diamond die
    Patent number: 10807135
    Abstract: A shaped diamond die includes a polycrystalline diamond, the polycrystalline diamond having a machining hole, wherein a length D of a side of the machining hole is 100 ?m or less, a corner R is 20 ?m or less, the shaped diamond die includes a bearing portion, a surface roughness Sa of the bearing portion is 0.05 ?m or less, and an average grain size of the polycrystalline diamond is 500 nm or less.
    Type: Grant
    Filed: December 8, 2017
    Date of Patent: October 20, 2020
    Assignee: A.L.M.T. Corp.
    Inventors: Toshiaki Shindo, Takuya Asanuma
  • SHAPED DIAMOND DIE
    Publication number: 20190329308
    Abstract: A shaped diamond die includes a polycrystalline diamond, the polycrystalline diamond having a machining hole, wherein a length D of a side of the machining hole is 100 ?m or less, a corner R is 20 ?m or less, the shaped diamond die includes a bearing portion, a surface roughness Sa of the bearing portion is 0.05 ?m or less, and an average grain size of the polycrystalline diamond is 500 nm or less.
    Type: Application
    Filed: December 8, 2017
    Publication date: October 31, 2019
    Applicant: A.L.M.T. Corp.
    Inventors: Toshiaki SHINDO, Takuya ASANUMA