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:
Apr. 27, 2004
Filed:
Dec. 24, 2002
Applicant:
Inventor:
Hiroshi Kakigi, Otsu, JP;
Assignee:
Nippon Electric Glass Co., Ltd., Shiga-Ken, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J 3/100 ; H01J 2/970 ;
U.S. Cl.
CPC ...
H01J 3/100 ; H01J 2/970 ;
Abstract
A diagonal inner-face curved portion is formed on an inner face of a diagonal portion of a pyramid-shaped yoke portion. The diagonal inner-face curved portion is formed to make at least one of partially inner-face curved portions at the major axis side and the minor axis side of the diagonal axis swell to the outward side. The partially inner-face curved portions at the major axis side and the minor axis side are formed by circular arced portions with different radii to each other.