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:
Jul. 27, 2021
Filed:
Oct. 19, 2016
Applicants:
Sumitomo Electric Industries, Ltd., Osaka, JP;
A.l.m.t. Corp., Tokyo, JP;
Inventors:
Hitoshi Sumiya, Itami, JP;
Takeshi Sato, Itami, JP;
Makoto Yukawa, Sumoto, JP;
Bunya Suemitsu, Sumoto, JP;
Assignees:
Sumitomo Electric Industries, Ltd., Osaka, JP;
A.L.M.T. Corp., Tokyo, JP;
Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21C 3/02 (2006.01); C01B 32/25 (2017.01); C22C 26/00 (2006.01);
U.S. Cl.
CPC ...
B21C 3/025 (2013.01); C01B 32/25 (2017.08); C22C 26/00 (2013.01);
Abstract
A wear-resistant tool includes composite polycrystalline diamond as a core, the composite polycrystalline diamond being composed of polycrystalline diamond in which particulate diamond is directly bonded and non diamond carbon. The polycrystalline diamond in the composite polycrystalline diamond is three-dimensionally continuous in composite polycrystal and primary particles have an average particle size from 10 to 500 nm.