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. 04, 2022
Filed:
May. 29, 2017
Applicant:
Sumitomo Electric Industries, Ltd., Osaka, JP;
Inventors:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES, LTD., Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B23B 27/14 (2006.01); C22C 29/04 (2006.01); C23C 14/06 (2006.01); C23C 16/36 (2006.01);
U.S. Cl.
CPC ...
C22C 29/04 (2013.01); B23B 27/148 (2013.01); B23B 2224/32 (2013.01); B23B 2228/10 (2013.01); C23C 14/0664 (2013.01); C23C 16/36 (2013.01);
Abstract
A hard material includes a first hard phase containing titanium carbonitride as a major constituent and a binder phase containing an iron group element as a major constituent. In any surface or cross-section of the hard material, the grain size D50 at a cumulative percentage of 50% of a grain size distribution by area of the first hard phase is 1.0 μm or more, and the average aspect ratio of first hard phase particles having grain sizes larger than or equal to D50 is 2.0 or less.