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. 15, 2016
Filed:
Jul. 30, 2012
Applicants:
Masakazu Isaka, Yasu-shi, JP;
Fumihiro Fujii, Narita, JP;
Inventors:
Masakazu Isaka, Yasu-shi, JP;
Fumihiro Fujii, Narita, JP;
Assignee:
Hitachi Tool Engineering, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C23C 14/06 (2006.01); B23B 27/14 (2006.01); C23C 14/02 (2006.01); C23C 14/32 (2006.01); B23B 51/00 (2006.01); B23C 5/16 (2006.01);
U.S. Cl.
CPC ...
B23B 27/148 (2013.01); B23B 51/00 (2013.01); B23C 5/16 (2013.01); C23C 14/022 (2013.01); C23C 14/027 (2013.01); C23C 14/0641 (2013.01); C23C 14/325 (2013.01); Y10T 428/12014 (2015.01);
Abstract
The ion bombardment of Cr, etc. onto a surface of a WC-based cemented carbide substrate in a nitrogen-based gas forms a modified phase having a bcc structure on the substrate surface, and a hard coating containing at least Cr formed thereon has high adhesion to the substrate by the modified phase.