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. 04, 2008
Filed:
Aug. 15, 2005
Hisanori Tsuda, Kanagawa-Ken, JP;
Masaru Kamio, Kanagawa-Ken, JP;
Ihachiro Gofuku, Kanagawa-Ken, JP;
Yasue Sato, Tokyo, JP;
Hisanori Tsuda, Kanagawa-Ken, JP;
Masaru Kamio, Kanagawa-Ken, JP;
Ihachiro Gofuku, Kanagawa-Ken, JP;
Yasue Sato, Tokyo, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Abstract
An image display apparatus for forming an image in an image displaying region provided with a vacuum chamber having an electron source substrate and an image forming substrate has an ion pump for evacuating the vacuum chamber by an action of a magnet-filed-forming portion through an aperture portion formed in the electron source substrate or an image displaying substrate, wherein the magnet-filed-forming portion is arranged so that a shadow formed by perpendicularly projecting the magnet-filed-forming portion onto the electron source substrate or the image forming substrate can be located outside the image displaying region.