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:
Feb. 03, 2009
Filed:
Feb. 18, 2004
Kazuhiko Sugimoto, Kyoto, JP;
Junichi Hibino, Kyoto, JP;
Masaki Aoki, Osaka, JP;
Yoshinori Tanaka, Osaka, JP;
Hiroshi Setoguchi, Osaka, JP;
Kazuhiko Sugimoto, Kyoto, JP;
Junichi Hibino, Kyoto, JP;
Masaki Aoki, Osaka, JP;
Yoshinori Tanaka, Osaka, JP;
Hiroshi Setoguchi, Osaka, JP;
Panasonic Corporation, Osaka, JP;
Abstract
In a phosphor whose host crystal is constituted of an oxide, a method of preparing the phosphor where the oxygen deficiencies in the phosphor are not many, and a plasma display device using the same are provided. After processes of weighing, mixing and filling powders of the phosphor, a process for firing in a reducing atmosphere and a process for firing in an oxidizing atmosphere after the last reducing atmosphere process are provided. In addition, a firing temperature in the oxidizing atmosphere process is not less than 600° C. and not more than 1000° C.