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. 24, 2018
Filed:
Mar. 16, 2015
Applicant:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Inventors:
Takeshi Satoh, Itami, JP;
Hitoshi Sumiya, Itami, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/52 (2006.01); B23B 27/20 (2006.01); B21C 3/02 (2006.01); C04B 35/528 (2006.01); C04B 35/645 (2006.01); C01B 32/25 (2017.01);
U.S. Cl.
CPC ...
C04B 35/52 (2013.01); B21C 3/025 (2013.01); C01B 32/25 (2017.08); C04B 35/528 (2013.01); C04B 35/645 (2013.01); C04B 2235/3826 (2013.01); C04B 2235/425 (2013.01); C04B 2235/427 (2013.01); C04B 2235/785 (2013.01); C04B 2235/80 (2013.01); C04B 2235/96 (2013.01); C04B 2235/9607 (2013.01);
Abstract
A composite sintered body includes a first phase and a second phase. The first phase is a diamond phase, and the second phase is a phase formed of one or more types of elements or compounds or both thereof and applying strain to the first phase. A contained amount of the second phase is larger than 0 ppm and not larger than 1000 ppm. As a result, there is provided a high wear-resistant, high local wear-resistant, and high chipping-resistant diamond-containing composite sintered body.