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. 19, 2004
Filed:
Dec. 10, 2002
Ryuichi Murai, Toyonaka, JP;
Shinichiro Hatta, Nara, JP;
Hiroshi Iwamoto, Osaka, JP;
Shigeo Nakatera, Hirakata, JP;
Takayuki Yonezawa, Takatuki, JP;
Tomohisa Mikami, Ibaraki, JP;
Matsushita Electric Industrial Co., Ltd., Osaka, JP;
Abstract
An inner magnetic shield is provided that reduces mislanding lengths due to electron beam distortion caused by external magnetic fields such as terrestrial magnetism, thereby reducing the occurrence of drifted or uneven color throughout an entire display screen. The inner magnetic shield is of a tube with a plurality of side surfaces, and is provided with at least one skirt ( ) that extends to the vicinity of a spanning member ( ) at a location where the inner magnetic shield is not in contact with a holding member ( ). The skirt ( ) is magnetically coupled with the spanning member ( ).