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. 08, 2003
Filed:
Sep. 29, 2000
Applicant:
Inventors:
Teruki Suzuki, Funabashi, JP;
Masatoshi Shiiki, Musashimurayama, JP;
Choichiro Okazaki, Kodaira, JP;
Tadashi Furukawa, Chiba, JP;
Assignee:
Hitachi, Ltd., Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H01J 1/749 ; H01J 1/67 ; C09K 1/156 ; C09K 1/179 ;
U.S. Cl.
CPC ...
H01J 1/749 ; H01J 1/67 ; C09K 1/156 ; C09K 1/179 ;
Abstract
Rare earth phospho-vandate phosphors containing at least one element of Group IV of the periodic table have spherical or cubic shaped particles and provide higher brightness and longer brightness life, and effective for use in display systems and light emitting systems.