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:
Jan. 12, 1999
Filed:
Jun. 27, 1997
Masanobu Honda, Osaka, JP;
Koji Shimada, Shiga, JP;
Matsushita Electronics Corporation, Osaka, JP;
Abstract
A deflection yoke which is capable of sufficiently reducing a high order raster distortion (gullwing) at the upper and lower edges of the screen without damaging coil wires of the screen side flange portion (5) at the time of winding the horizontal deflection coil (1). A deflection yoke is formed with a saddle shaped horizontal deflection coil (1), a saddle shaped vertical deflection coil (2) located outside the horizontal deflection coil (1), and a ferrite core (3) located outside the vertical deflection coil (2). The screen side cone portion (1a) of the horizontal deflection coil (1) is wound with a winding angle range from 1.degree. to 80.degree. with a higher winding distribution in the range from 18.degree. to 30.degree. with the horizontal axis as the standard. The head point in the direction of the screen side tube axis of the screen side cone portion (1a) of the horizontal deflection coil (1) is located 30 mm away from the screen side tip portion of the ferrite core (3).