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. 08, 2016
Filed:
Dec. 05, 2013
Applicant:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Inventors:
Takeshi Sato, Itami, JP;
Katsuko Yamamoto, Itami, JP;
Kazuhiro Ikeda, Itami, JP;
Hitoshi Sumiya, Itami, JP;
Assignee:
Sumitomo Electric Industries, Ltd., Osaka-shi, JP;
Primary Examiner:
Int. Cl.
CPC ...
C01B 31/06 (2006.01); C04B 35/52 (2006.01); B21C 3/02 (2006.01); C23C 14/06 (2006.01); C23C 14/08 (2006.01); C23C 14/34 (2006.01); B01J 3/06 (2006.01); C22C 1/05 (2006.01); C04B 35/628 (2006.01); C04B 35/645 (2006.01);
U.S. Cl.
CPC ...
C04B 35/52 (2013.01); B01J 3/062 (2013.01); B21C 3/025 (2013.01); C01B 31/06 (2013.01); C04B 35/6286 (2013.01); C04B 35/62805 (2013.01); C04B 35/62818 (2013.01); C04B 35/62842 (2013.01); C04B 35/62878 (2013.01); C04B 35/645 (2013.01); C22C 1/05 (2013.01); C23C 14/0635 (2013.01); C23C 14/08 (2013.01); C23C 14/34 (2013.01); B01J 2203/061 (2013.01); B01J 2203/0655 (2013.01); C04B 2235/3241 (2013.01); C04B 2235/3256 (2013.01); C04B 2235/3262 (2013.01); C04B 2235/34 (2013.01); C04B 2235/3409 (2013.01); C04B 2235/3817 (2013.01); C04B 2235/3821 (2013.01); C04B 2235/3839 (2013.01); C04B 2235/40 (2013.01); C04B 2235/404 (2013.01); C04B 2235/42 (2013.01); C04B 2235/421 (2013.01); C04B 2235/425 (2013.01); C04B 2235/72 (2013.01); C04B 2235/785 (2013.01); C04B 2235/85 (2013.01); C04B 2235/96 (2013.01);
Abstract
Provided are a diamond polycrystalline body having a longer life than conventional diamond polycrystalline bodies when it is slid, a method for manufacturing the same, and a tool. In a diamond polycrystalline body, at least one element whose oxide has a melting point of less than or equal to 1000° C. is added thereto, and crystal grains have an average grain size of less than or equal to 500 nm. Thereby, wear of diamond can be suppressed, and the diamond polycrystalline body can have a longer life when it is slid.