Patents by Inventor Kouji SHIMANUKI

Kouji SHIMANUKI 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).

  • Cutting insert
    Patent number: 10717136
    Abstract: The edge portion includes an upper surface, a side surface, and a land surface. The side surface has a front side surface and a pair of lateral side surfaces. An intersection between the land surface and the front side surface forms a front cutting edge. An intersection between the land surface and each of the pair of lateral side surfaces form a corresponding one of a pair of lateral cutting edges. The edge portion contains 80 vol % or more of diamond. A chip breaker recess is provided between the upper surface and the land surface. The surfaces forming the chip breaker recess include a rake face and a breaker wall surface. The upper surface has a front edge portion opposite to the front cutting edge from the chip breaker recess. A pair of protruding portions are provided to extend from the front edge portion toward the front cutting edge.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: July 21, 2020
    Assignee: Sumitomo Electric Hardmetal Corp.
    Inventors: Kouji Shimanuki, Gaku Harada, Yasuyuki Kanada
  • Rotary tool
    Patent number: 10493536
    Abstract: There is provided a rotary tool including a rotary tool body and a blade provided to the rotary tool body and having a cutting edge, the blade containing 80% by volume or more of diamond, and the blade including a land surface extending along the cutting edge, and a chip breaker having a recess located opposite to the cutting edge with the land surface therebetween.
    Type: Grant
    Filed: September 7, 2016
    Date of Patent: December 3, 2019
    Assignee: SUMITOMO ELECTRIC HARDMETAL CORP.
    Inventors: Gaku Harada, Yasuyuki Kanada, Kouji Shimanuki
  • CUTTING INSERT
    Publication number: 20190143419
    Abstract: The edge portion includes an upper surface, a side surface, and a land surface. The side surface has a front side surface and a pair of lateral side surfaces. An intersection between the land surface and the front side surface forms a front cutting edge. An intersection between the land surface and each of the pair of lateral side surfaces form a corresponding one of a pair of lateral cutting edges. The edge portion contains 80 vol % or more of diamond. A chip breaker recess is provided between the upper surface and the land surface. The surfaces forming the chip breaker recess include a rake face and a breaker wall surface. The upper surface has a front edge portion opposite to the front cutting edge from the chip breaker recess. A pair of protruding portions are provided to extend from the front edge portion toward the front cutting edge.
    Type: Application
    Filed: March 8, 2017
    Publication date: May 16, 2019
    Applicant: SUMITOMO ELECTRIC HARDMAETAL CORP.
    Inventors: Kouji Shimanuki, Gaku Harada, Yasuyuki Kanada
  • ROTARY TOOL
    Publication number: 20180318939
    Abstract: There is provided a rotary tool including a rotary tool body and a blade provided to the rotary tool body and having a cutting edge, the blade containing 80% by volume or more of diamond, and the blade including a land surface extending along the cutting edge, and a chip breaker having a recess located opposite to the cutting edge with the land surface therebetween.
    Type: Application
    Filed: September 7, 2016
    Publication date: November 8, 2018
    Inventors: Gaku HARADA, Yasuyuki KANADA, Kouji SHIMANUKI