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:
Oct. 09, 2007
Filed:
Aug. 17, 2005
Ihachiro Gofuku, Chigasaki, JP;
Masaru Kamio, Sagamihara, JP;
Hisanori Tsuda, Atsugi, JP;
Yasue Sato, Machida, JP;
Yoshiyuki Shimada, Fukaya, JP;
Hiromasa Mitani, Hiratsuka, JP;
Kazuyuki Seino, Fukaya, JP;
Takashi Nishimura, Fukaya, JP;
Ihachiro Gofuku, Chigasaki, JP;
Masaru Kamio, Sagamihara, JP;
Hisanori Tsuda, Atsugi, JP;
Yasue Sato, Machida, JP;
Yoshiyuki Shimada, Fukaya, JP;
Hiromasa Mitani, Hiratsuka, JP;
Kazuyuki Seino, Fukaya, JP;
Takashi Nishimura, Fukaya, JP;
Canon Kabushiki Kaisha, Tokyo, JP;
Kabushiki Kaisha Toshiba, Tokyo, JP;
Abstract
Provided is an image display apparatus including: a vacuum container having an electron source enclosed therein for displaying an image; an ion pump communicating with the vacuum container for discharging air therefrom and decreasing pressure therein; and a resistor connected in series with the ion pump with respect to a power supply for driving the ion pump. Even if internal resistance of the ion pump undergoes order-of-magnitude changes according to its operating state, current consumption can be suppressed and the ion pump can be driven efficiently.