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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.:

US 5157301 B1

PDFFull Text
Date of Patent:
Oct. 20, 1992

Filed:

Oct. 09, 1990

Color cathode ray tube unit

Applicant:
Inventors:

Noboru Tominaga, Takatsuki, JP;

Katsuyo Iwasaki, Nishinomiya, JP;

Hidekuni Fujisawa, Kyoto, JP;

Koichi Sugahara, Sakai, JP;

Hiroshi Suzuki, Nagaokakyo, JP;

Assignee:

Matsushita Electronics Corporation, Osaka, JP;

Attorney:

Panitch Schwarze Jacobs & Nadel

Primary Examiner:

Donald J Yusko

Assistant Examiner:

Diab Hamadi

Int. Cl.
CPC ...
H01J / ; H01J / ;
U.S. Cl.
CPC ...
313412 ; 31536811 ;
Abstract

A color cathode ray unit which includes an in-line type electron gun, a deflection yoke disposed on the color CRT so as to generate substantially uniform horizontal and vertical deflection magnetic fields, thereby ensuring that an axially unsymmetrical lens electric field is dynamically generated between a first and a second focusing grid thereby correcting a distortion of electron beams caused by a magnetic field leaking from a dynamic convergence means.

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Tominaga, Noboru. (1992). Color cathode ray tube unit (U.S. Patent No. 5157301). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5157301

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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