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:
Jul. 11, 2000
Filed:
Jun. 19, 1998
Yuuichi Sano, Fukaya, JP;
Masahiro Yokota, Kumagaya, JP;
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Abstract
A funnel (32) of an envelope of a cathode ray tube has a cone portion (40) and a deflection yoke (37) is mounted on the cone portion (40). The deflection yoke (37) includes a hollow magnetic core (44), and horizontal deflection coils (43H) and vertical deflection coils (43V) which are provided on an inner surface side of the core (44). Each of lateral cross-sections of an outer surface of the cone portion (40) and an inner surface of the core (44), perpendicular to a center axis of the funnel (32), has a substantially rectangular shape, and a gap between the lateral cross-sections of the outer surface of the cone portion (40) and the inner surface of the core (44) includes a non-uniform portion.