The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jan. 07, 2025
Filed:
Jun. 17, 2021
Applicants:
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Mayuka Segawa, Hyogo, JP;
Naoki Watanobe, Hyogo, JP;
Taisuke Higashi, Hyogo, JP;
Takashi Harada, Hyogo, JP;
Satoru Kukino, Osaka, JP;
Assignees:
SUMITOMO ELECTRIC HARDMETAL CORP., Hyogo, JP;
Sumitomo Electric Industries, Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C 5/10 (2006.01); B23B 27/20 (2006.01);
U.S. Cl.
CPC ...
B23C 5/1018 (2013.01); B23B 27/20 (2013.01); B23B 2222/28 (2013.01); B23B 2226/315 (2013.01); B23B 2265/34 (2013.01);
Abstract
A cutting tool rotates about a rotation axis, and includes a tip end portion. The tip end portion includes a partially spherical surface that is brought into contact with a workpiece. The surface is provided with a plurality of recesses disposed apart from each other. An opening edge of each of the plurality of recesses constitutes a cutting edge.