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:
Sep. 05, 1995
Filed:
Apr. 05, 1993
Koji Nakamura, Nagaokakyo, JP;
Tetsushin Yazu, Nagaokakyo, JP;
Suguru Fujii, Nagaokakyo, JP;
Keitaro Tsukui, Amagasaki, JP;
Junko Itoh, Amagasaki, JP;
Kenichi Umino, Amagasaki, JP;
Mitsubishi Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
There are provided a cathode-ray tube display unit which can be manufactured with reduced weight and cost and which can have a screen plane flattened without the use of any metal band, and a method of making the same. The screen panel is previously deformed by the use of a jig and then sealingly connected to a funnel. After the jig has been removed, the interior of the display tube body is extracted to form a vacuum. The display tube body is distorted by the extraction, but such a distortion can be corrected by deformations previously applied to the display tube body. Thus, the screen plane can be flattened without the use of any metal band.