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:
Mar. 08, 2022
Filed:
Dec. 26, 2018
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Seiji Kitamura, Tokyo, JP;
Ushio Denki Kabushiki Kaisha, Tokyo, JP;
Abstract
Disclosed is a fluorescent plate in which a high reflectance of a reflective layer can be maintained over a long period of time, and occurrence of peeling of the reflective layer can be suppressed. The fluorescent plate of the present invention includes a fluorescent material layer containing a fluorescent material, an oxide layer disposed below the fluorescent material layer, and a reflective layer which is disposed below the oxide layer and is formed of silver, and further includes an oxidation-preventive protective layer which is disposed between the oxide layer and the reflective layer and is formed of a translucent material, and a translucent adhesion layer interposed between the oxidation-preventive protective layer and the reflective layer.