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. 28, 2015
Filed:
Feb. 26, 2010
Yuji Kimura, Tokyo, JP;
Yasushi Takai, Tokyo, JP;
Hirofumi Kawazoe, Tokyo, JP;
SHIN-ETSU CHEMICAL CO., LTD., Tokyo, JP;
Abstract
A method for manufacturing MAlO:Eu,RE type long-lasting phosphor ceramics that is capable of producing the ceramics at a reduced raw material cost. In addition, a sintered product of a long-lasting phosphor having no yellow body color. More specifically, the method for manufacturing MAlO:Eu,RE type long-lasting phosphor ceramics in which M is an alkaline earth element and RE is a rare earth element other than europium, involving mixing a BAM (alkaline earth aluminate) phosphor, an alkaline earth compound, an aluminum compound and a rare earth compound to form a mixture, and then firing the mixture; and a white MAlO:Eu,RE type long-lasting phosphor resulting from the method.