Patents by Inventor Yuusaku TAKATAKE

Yuusaku TAKATAKE 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: 10722956
    Abstract: An end mill includes an end mill body having a bar-shape extending along a rotation axis and including a first end and a second end, a side surface, a first end cutting edge, a second end cutting edge, a first peripheral cutting edge extending from the first end cutting edge, and a second peripheral cutting edge extending from the second end cutting edge. In which, L2 is smaller than L1, where L1 is a distance from the rotation axis to the first peripheral cutting edge, and L2 is a distance from the rotation axis to the second peripheral cutting edge in a cross section orthogonal to the rotation axis. And ?2 is greater than ?1, where ?1 is a rake angle of the first peripheral cutting edge, and ?2 is a rake angle of the second peripheral cutting edge.
    Type: Grant
    Filed: January 27, 2017
    Date of Patent: July 28, 2020
    Assignee: KYOCERA CORPORATION
    Inventor: Yuusaku Takatake
  • Publication number: 20200198025
    Abstract: In an aspect, a rotating tool includes a main body having a rod shape and extending along a rotation axis. The main body includes a first end, a second end, a twisted cutting edge located at a side of the first end, a twisted flute, a reverse twisted cutting edge located closer to the second end than the twisted cutting edge, and a reverse twisted flute. The reverse twisted flute is connected to the twisted flute. The twisted cutting edge includes a first part having a length from the rotation axis decreasing as approaching toward the second end.
    Type: Application
    Filed: May 24, 2018
    Publication date: June 25, 2020
    Applicant: KYOCERA Corporation
    Inventor: Yuusaku TAKATAKE
  • Publication number: 20190061022
    Abstract: An end mill includes an end mill body having a bar-shape extending along a rotation axis and including a first end and a second end, a side surface, a first end cutting edge, a second end cutting edge, a first peripheral cutting edge extending from the first end cutting edge, and a second peripheral cutting edge extending from the second end cutting edge. In which, L2 is smaller than L1, where L1 is a distance from the rotation axis to the first peripheral cutting edge, and L2 is a distance from the rotation axis to the second peripheral cutting edge in a cross section orthogonal to the rotation axis. And ?2 is greater than ?1, where ?1 is a rake angle of the first peripheral cutting edge, and ?2 is a rake angle of the second peripheral cutting edge.
    Type: Application
    Filed: January 27, 2017
    Publication date: February 28, 2019
    Inventor: Yuusaku TAKATAKE