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:
Mar. 21, 2017
Filed:
Mar. 29, 2012
Applicants:
Hideki Ishigami, Hachinohe, JP;
Hidefumi Nakamura, Hachinohe, JP;
Junichi Hayashi, Hachinohe, JP;
Inventors:
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B24B 1/00 (2006.01); C09K 3/14 (2006.01); B24B 31/02 (2006.01); B22F 3/22 (2006.01); C22C 1/10 (2006.01); C22C 27/04 (2006.01);
U.S. Cl.
CPC ...
B24B 31/02 (2013.01); B22F 3/225 (2013.01); C22C 1/1084 (2013.01); C22C 27/04 (2013.01); B22F 2998/10 (2013.01);
Abstract
A polishing media is formed of a sintered body in which a metal structure and a ceramic structure are intermingled with each other. The polishing media is preferably produced by molding a mixed powder of a metal powder and a ceramic powder by an injection molding method and sintering the resulting molded article. Further, the ceramic structure is preferably formed of aluminum oxide, and the metal structure is preferably formed of tungsten.