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:
Nov. 28, 2023
Filed:
Jul. 21, 2022
Applicant:
Sumitomo Electric Hardmetal Corp., Hyogo, JP;
Inventors:
Kento Yamada, Osaka, JP;
Hironari Moroguchi, Osaka, JP;
Yusuke Matsuda, Osaka, JP;
Satoru Kukino, Hyogo, JP;
Assignee:
SUMITOMO ELECTRIC HARDMETAL CORP., Hyogo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01);
U.S. Cl.
CPC ...
B23B 27/148 (2013.01); B23B 2222/14 (2013.01); B23B 2222/44 (2013.01); B23B 2226/125 (2013.01);
Abstract
A cutting tool, including a cutting edge portion composed of a cubic boron nitride sintered material, wherein the cutting edge portion has: a flank face; a rake face contiguous to the flank face; and a cutting edge positioned on a ridgeline of the flank face and the rake face, an arithmetical mean height Sa of the flank face is 0.5 μm or more and 3.0 μm or less, the Sa is measured in accordance with ISO25178-2:2012, and an oxygen concentration of the flank face is 10 mass % or more and 50 mass % or less.