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. 03, 2018
Filed:
May. 27, 2016
Tohoku University, Sendai-shi, Miyagi, JP;
C&a Corporation, Sendai-shi, Miyagi, JP;
Shunsuke Kurosawa, Sendai, JP;
Akira Yoshikawa, Sendai, JP;
Kei Kamada, Sendai, JP;
Yuui Yokota, Sendai, JP;
Yuji Ohashi, Sendai, JP;
Takahiko Horiai, Sendai, JP;
Yasuhiro Shoji, Sendai, JP;
Rikito Murakami, Sendai, JP;
TOHOKU UNIVERSITY, Miyagi, JP;
C&A CORPORATION, Miyagi, JP;
Abstract
A crystal material that is represented by a general formula (1): (REABM')(Si,M″)O(1), the crystal material having a pyrochlore type structure, being a nonstoichiometric composition, and being a congruent melting composition, wherein in Formula (1), A contains at least one or more selected from Gd, Y, La, Sc, Yb, and Lu; B contains at least one or more selected from La, Gd, Yb, Lu, Y, and Sc; 0.1≤y<0.4; RE contains at least one or more selected from Ce, Pr, Nd, Eu, Tb, and Yb; 0<x<0.1; M′ and M″ contain at least one or more selected from Li, Na, K, Mg, Ca, Sr, Ba, Ti, Zr, Hf, Fe, Ta, and W; 0≤s<0.01 and 0≤t<0.01; and 0<|α|<0.3 and 0≤|β|<0.3 and 0≤|γ|<0.5.