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:
May. 20, 2003
Filed:
Oct. 03, 2000
Applicant:
Inventors:
Keiji Ono, Tsukuba, JP;
Susumu Miyazaki, Fujishiro-machi, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C09K 1/164 ;
U.S. Cl.
CPC ...
C09K 1/164 ;
Abstract
The present invention provides a method for producing an aluminate-based phosphor or a luminescent aluminate-based phosphor, which comprises calcining an aluminum compound having a BET specific surface area of 100 m /g or more.