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:
Feb. 13, 1990
Filed:
Apr. 27, 1988
Applicant:
Inventors:
Takeo Itou, Fukaya, JP;
Hidemi Matsuda, Oomiya, JP;
Mamory Yoshizako, Machida, JP;
Osamu Yagi, Kawasaki, JP;
Assignees:
Kabushiki Kaisha Toshiba, Kawasaki, JP;
Tama Chemicals Co., Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ;
U.S. Cl.
CPC ...
313479 ; 313313 ;
Abstract
A cathode ray tube according to the present invention has a sufficient antistatic property which can be obtained by forming a glass film containing SiO.sub.2 or P.sub.2 O.sub.5 as a main component and a hygroscopic metal salt on the outer surface of its front panel.