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:
Jul. 26, 2005
Filed:
Dec. 05, 2001
Applicants:
Keiji Ono, Tsukuba, JP;
Susumu Miyazaki, Kitasoma-gun, JP;
Inventors:
Keiji Ono, Tsukuba, JP;
Susumu Miyazaki, Kitasoma-gun, JP;
Assignee:
Sumitomo Chemical Company, Limited, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01J001/62 ;
U.S. Cl.
CPC ...
Abstract
A phosphor layer having a high luminance, and a vacuum ultra-violet radiation excited light emitting element are provided. A phosphor layer having a voidage of not less than 60 vol %, the phosphor layer in which a phosphor having a BET specific surface area of not less than 3 m/g is used, and a vacuum ultra-violet radiation excited light emitting element are provided.