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.

Date of Patent:
Feb. 18, 2025

Filed:

Sep. 02, 2020
Applicant:

Sumitomo Electric Hardmetal Corp., Itami, JP;

Inventors:

Kouki Matsubara, Itami, JP;

Sachie Goto, Itami, JP;

Kohei Ito, Itami, JP;

Toya Nonen, Itami, JP;

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23C 5/10 (2006.01); B23B 51/00 (2006.01);
U.S. Cl.
CPC ...
B23C 5/10 (2013.01); B23B 51/00 (2013.01); B23C 2200/0438 (2013.01); B23C 2200/203 (2013.01);
Abstract

A straight line along the second line segment and a straight line along the fourth line segment form an acute angle. The straight line along the second line segment and the straight line along the third line segment form an obtuse angle. The straight line along the first line segment and the straight line along the fourth line segment form an obtuse angle. Each of the third curved portion and the fourth curved portion is larger in radius of curvature than the first curved portion and larger in radius of curvature than the second curved portion. In a direction perpendicular to the bottom surface, a distance between the top surface and the bottom surface is equal to a distance between the cutting edge and the bottom surface, or is shorter than the distance between the cutting edge and the bottom surface.


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