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. 06, 2009
Filed:
Sep. 28, 2004
Applicants:
Shunsuke Hosokawa, Mitoyo, JP;
Hideki Yagi, Mitoyo, JP;
Takagimi Yanagitani, Mitoyo, JP;
Inventors:
Assignee:
Konoshima Chemical Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C04B 35/50 (2006.01);
U.S. Cl.
CPC ...
Abstract
The present invention provides a lutetium oxide sinter to which yttrium is added in an amount of 100 mass ppm to 7000 mass ppm, whose average particle size is from 0.7 to 20 μm, and with which there is no precipitation of a hetero phase containing yttrium at the grain boundary.