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. 22, 1987
Filed:
Dec. 06, 1985
Applicant:
Inventors:
Seiji Watabe, Honjo, JP;
Isao Yokoyama, Nikaho, JP;
Masanori Sasaki, Kisakata, JP;
Yotaro Toyoshima, Nikaho, JP;
Sumio Takahashi, Nikaho, JP;
Tsutomu Maeda, Wako, JP;
Assignee:
TDK Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01F / ;
U.S. Cl.
CPC ...
335212 ; 335210 ;
Abstract
An electromagnetic deflection-distortion corrector comprises a plurality of permanent magnets arranged around the tubular wall of a CRT display unit of the electromagnetic deflection type, and adjuster means for moving each permanent magnet forward and backward, toward and away from the CRT wall, while at the same time rotating the direction of its magnetization.