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:
Jun. 15, 2021
Filed:
Nov. 09, 2017
Applicant:
Mitsui Mining & Smelting Co., Ltd., Tokyo, JP;
Inventors:
Hitoshi Kajino, Omuta, JP;
Shoji Imaura, Omuta, JP;
Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/50 (2006.01); C04B 35/505 (2006.01); C04B 35/553 (2006.01); C04B 35/645 (2006.01);
U.S. Cl.
CPC ...
C04B 35/50 (2013.01); C04B 35/553 (2013.01); C04B 35/645 (2013.01); C04B 2235/3225 (2013.01); C04B 2235/445 (2013.01); C04B 2235/5436 (2013.01); C04B 2235/6562 (2013.01); C04B 2235/77 (2013.01);
Abstract
A sintered rare earth oxyfluoride compact is composed of LnOF(wherein Ln is a rare earth element; and a, b, and c each independently represent a positive number, provided that they are not equal to each other) or Ca-stabilized LnOF as a primary phase and LnOF unstabilized with Ca as a secondary phase. The intensity ratio of the XRD peak of the (018) or (110) plane of the unstabilized LnOF to the highest XRD peak of LnOFis preferably 0.5% to 30%.