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:
Nov. 21, 2000
Filed:
Feb. 23, 1999
Tatsuya Iwasaki, Machida, JP;
Izumi Tabata, Yokohama, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
There are provided a highly reliable fabrication method and apparatus for an image forming device which can avoid element deterioration along with elimination of gas molecules from panel constituents. An image forming device having an electron source substrate with a large number of electron sources each having an electron-emitting element and a luminescent display plate facing the electron source substrate via a vacuum portion is fabricated by performing the aging step of aging the interior of the vacuum portion while exhausting or maintaining with a getter the vacuum state of the vacuum portion. This aging step is performed by drive duty control of gradually increasing the drive duty of the image forming device.