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. 23, 1995
Filed:
Feb. 18, 1993
Applicant:
Inventor:
Ichiro Utsumi, Kanagawa, JP;
Assignee:
Sony Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428690 ; 428200 ; 428209 ; 428352 ; 428354 ; 428461 ; 428483 ; 428913 ; 428914 ;
Abstract
On a long base film (7) made of polyethylene terephthalate, there are formed a stripping layer (8), an aluminum layer (9), a phosphor layer (10) and a bonding layer (11) to construct a thermal transfer foil (P). A phosphor screen is formed on a glass panel by using the thermal transfer foil (P). In the process for forming a phosphor layer of a cathode ray tube, the number of manufacturing processes can be reduced so that a manufacturing cost of the phosphor screen can be reduced. Also, there can be obtained a stable phosphor screen having a constant film thickness.