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. 23, 2003
Filed:
Jun. 14, 2001
Shinji Furuichi, Mohka, JP;
Hitachi Metals Ltd., Tokyo, JP;
Abstract
A method for forming a composite vapor-deposited film which is suitable for the deposition on the fluorescent screen of a color television picture tube and the like and in which one side has a high light-reflectance and the other side has a property of absorbing heat rays, and a composite vapor-deposition material suitable for vacuum vapor deposition therefor are disclosed. This composite vapor-deposition material has an aluminum envelope and a low vapor-pressure metal/metalloid compound powder in the its core region. It is desirable that the low vapor-pressure metal/metalloid compound powder is dispersed and retained with aluminum in the core region. Vacuum vapor deposition carried out employing this composite vapor-deposition material yields a composition of almost 100% aluminum at the first stage of the vapor deposition, and subsequently forms a layer containing the low vapor-pressure metal/metalloid compound, from which the low vapor-pressure metal/metalloid compound is not diffused into the aluminum layer formed at the initial stage of the vapor deposition, even though heat treatment is applied. Therefore, a reflection layer having a high light-reflectance can be maintained.