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:
Nov. 25, 1986
Filed:
Jul. 05, 1984
Applicant:
Inventors:
Naomitsu Watanabe, Mobara, JP;
Yoshifumi Tomita, Mobara, JP;
Atsushi Suzuki, Tokyo, JP;
Hajime Yamamoto, Tokyo, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J / ; C09K / ;
U.S. Cl.
CPC ...
313468 ; 25230145 ; 313471 ;
Abstract
In an index type color picture tube including a stripe type fluorescent screen having stripe-shaped phosphor layers for green, blue and red color and a stripe-shaped phosphor layer for index detection, the phosphor for red color phosphor layer comprises a Y.sub.2 O.sub.2 S:Eu phosphor containing 0.01 to 3 ppm of either one or both of Tb and Pr.