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. 12, 1989
Filed:
Jan. 11, 1989
Hisakazu Yamane, Nagaokakyo, JP;
Ritsuo Ishida, Nagaokakyo, JP;
Hisao Nakanishi, Nagaokakyo, JP;
Keiji Yanai, Nagaokakyo, JP;
Masayuki Toshiyasu, Nagaokakyo, JP;
Kazunori Ikegami, Amagasaki, JP;
Soichiro Okuda, Amagasaki, JP;
Kenji Kimura, Nagaokakyo, JP;
Koji Ishibata, Nagaokakyo, JP;
Yoshinori Ishii, Nagaokakyo, JP;
Mitsubishi Denki Kabushiki Kaishi, Tokyo, JP;
Abstract
A cathode ray tube apparatus comprises three cathodes arranged in line with each other in a first direction for emission of respective electron beams therefrom, a focusing electrode having first to third apertures defined therein for the passage of the respective electron beams therethrough, a quadrupole electrode structure including first to third quadrupole electrodes one for each electron beam, each of the quadrupole electrode being comprised of a pair of horizontal electrode pieces spaced a predetermined distance from each other in a second direction perpendicular to the first direction and positioned upwardly and downwardly, respectively, with respect to the associated electron beam, and a pair of vertical electrode pieces spaced a predetermined distance from each other in a direction aligned with the first direction and positioned leftwards and rightwards with respect to such associated electron beam, and a power source circuit for applying a predetermined voltage to the quadrupole electrode structure.