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.

Date of Patent:
Apr. 12, 2005

Filed:

Oct. 28, 2003
Applicants:

Yoshiaki Ito, Fukaya, JP;

Tadahiro Kojima, Kumagaya, JP;

Takashi Murai, Fukaya, JP;

Masatsugu Inoue, Kumagaya, JP;

Inventors:

Yoshiaki Ito, Fukaya, JP;

Tadahiro Kojima, Kumagaya, JP;

Takashi Murai, Fukaya, JP;

Masatsugu Inoue, Kumagaya, JP;

Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J029/70 ;
U.S. Cl.
CPC ...
Abstract

A deflection yoke on a yoke mounting portion with a truncated pyramid shape has a pair of saddle-type horizontal deflecting coils that is located symmetrically with a central axis and has a truncated pyramid shape. A core with a truncated cone shape is coaxially located on the outer periphery of the horizontal deflecting coils. A pair of vertical deflecting coils are toroidally wound around the core. If the positions of a horizontal axis and a vertical axis are given by 0° and 90°, respectively, in the circumference direction around the central axis, the winding of one vertical deflecting coil has a starting point on the horizontal-axis side within the range of 5°-30° and is distributed from the starting point to 90° and wound symmetrically with the vertical axis. The windings of the vertical deflecting coils are wound symmetrically with the horizontal axis.


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