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:
May. 31, 1994
Filed:
Jan. 15, 1993
Hiroki Ohguro, Kanagawa, JP;
Yoshio Yoshiwara, Chiba, JP;
Minoru Furuya, Iwate, JP;
Nobutaka Okuyama, Kanagawa, JP;
Soichi Sakurai, Kanagawa, JP;
Michitaka Ohsawa, Kanagawa, JP;
Hitachi, Ltd., Tokyo, JP;
Hitachi Mizusawa Electronics Co., Ltd., Mizusawa, JP;
Abstract
A deflection yoke having cancelling loop coils for reducing undesired portions of a horizontal deflection magnetic field generated by a deflection yoke body without mislanding. The cancelling loop coils generate a cancelling magnetic field which includes two peaks in a front region and a rear region of the deflection yoke body in which the undesired field portions exist, respectively. The peaks are opposite in direction to the horizontal magnetic field generated by the deflection yoke body, respectively, with same ratio to the deflection magnetic field, so that the undesired magnetic field portions are under-corrected in the front portion and over-corrected in the rear portion.