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:
Apr. 23, 2019
Filed:
Apr. 22, 2015
Applicant:
Kobe Steel, Ltd., Kobe-shi, JP;
Inventors:
Maiko Abe, Hyogo, JP;
Kenji Yamamoto, Hyogo, JP;
Assignee:
Kobe Steel, Ltd., Kobe-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01); B23B 51/00 (2006.01); B23C 5/16 (2006.01); C23C 14/06 (2006.01); C23C 28/04 (2006.01);
U.S. Cl.
CPC ...
B23B 27/148 (2013.01); B23B 27/14 (2013.01); B23B 51/00 (2013.01); B23C 5/16 (2013.01); C23C 14/0641 (2013.01); C23C 28/044 (2013.01); C23C 28/046 (2013.01); B23B 2222/28 (2013.01); B23B 2228/10 (2013.01); C23C 14/06 (2013.01);
Abstract
A cutting tool has a substrate. A surface of the substrate for the cutting tool is covered with a hard film. In the cutting tool, the hard film has a root-mean-square slope RΔq in a surface of the hard film of 0.060° or less.