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:
Feb. 13, 2018
Filed:
Sep. 26, 2014
Applicant:
Seiko Epson Corporation, Tokyo, JP;
Inventors:
Hidefumi Nakamura, Hachinohe, JP;
Yukihiko Shiohara, Hachinohe, JP;
Assignee:
Seiko Epson Corporation, , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
A61C 13/00 (2006.01); A61C 13/083 (2006.01); C22C 19/07 (2006.01);
U.S. Cl.
CPC ...
A61C 13/0022 (2013.01); A61C 13/0835 (2013.01); C22C 19/07 (2013.01);
Abstract
A dental blank is provided for yielding a metal frame having a desired shape according to a dental CAD/CAM system and a machining process. The dental blank is formed from a metal powder sintered body and contains Co as a main component, Cr in a proportion of 26% by mass or more and 35% by mass or less, Mo in a proportion of 5% by mass or more and 12% by mass or less, and Si in a proportion of 0.5% by mass or more and 1.0% by mass or less. Further, part of the Si is silicon oxide, and the ratio of the silicon oxide to the total amount of Si is preferably 10% by mass or more and 90% by mass or less.