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:
Oct. 14, 2008
Filed:
Jul. 17, 2006
Applicants:
Takayuki Ide, Fukuoka, JP;
Masakatsu Kiyohara, Fukuoka, JP;
Masami Ando, Fukuoka, JP;
Inventors:
Assignee:
Toto Ltd., Fukuoka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C04B 35/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
The object of the present invention is to provide a rare-earth oxide sintered body having low sintering temperature and high density. A boron compound is added at a ratio of 0.06 mol % or more and less than 25 mol % when converted into boron oxide (BO) to oxide powder of at least one of La, Nd, Sm, Eu, Gd, Dy, Ho, Er, Tm, Yb, Lu, and Sc, the mixed powder is formed and sintered.