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:
Jan. 17, 2023
Filed:
Jun. 14, 2018
Applicant:
Dyden Corporation, Fukuoka, JP;
Inventors:
Tanamachi Nobutsugu, Fukuoka, JP;
Tanno Hiroaki, Fukuoka, JP;
Fukushima Tomoko, Fukuoka, JP;
Nishihara Terutaka, Fukuoka, JP;
Assignee:
DYDEN CORPORATION, Fukuoka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K 11/77 (2006.01); C01B 25/45 (2006.01);
U.S. Cl.
CPC ...
C09K 11/7778 (2013.01); C01B 25/45 (2013.01); C09K 11/771 (2013.01); C09K 11/7709 (2013.01); C09K 11/7777 (2013.01); C01P 2002/52 (2013.01); C01P 2002/72 (2013.01);
Abstract
An ultraviolet light emitting phosphor for mercury-free lamps is a phosphor composed of a phosphate containing at least two metal elements selected from the group consisting of group 13 elements and lanthanoid series elements, and is excited to emit ultraviolet by irradiation with vacuum ultraviolet rays or an electron beam.