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:
Dec. 02, 2008
Filed:
Jan. 25, 2005
Takao Shiraga, Mobara, JP;
Hirokazu Takanashi, Mobara, JP;
Yoshimasa Uzawa, Mobara, JP;
Yoshitaka Kagawa, Mobara, JP;
Takao Shiraga, Mobara, JP;
Hirokazu Takanashi, Mobara, JP;
Yoshimasa Uzawa, Mobara, JP;
Yoshitaka Kagawa, Mobara, JP;
Futaba Corporation, Mobara-shi, Chiba-ken, JP;
Abstract
A vacuum retention agent, which is safe, easy to handle, saves space, and absorbs residual gases inside a hermetic envelope to maintain the hermetic envelope in a high degree of vacuum is provided in place of the conventional metal getter. A display device including the vacuum retention agent is provided. A gas occlusion material containing ZrO(where 1≦x≦2) is disposed in a hermetic envelope forming a self-luminous element. ZrOx is formed in pattern from a paste of zirconium dioxide, which can be generally obtained as a reagent. In a production step, the patterned self-luminous element is hermetically sealed in vacuum in an atmosphere at 120° C. to 500° C., so that the vacuum retention effect is more improved.