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:
Oct. 06, 2020
Filed:
Sep. 20, 2017
Current Lighting Solutions, Llc, East Cleveland, OH (US);
Fangming Du, Northfield, OH (US);
James Edward Murphy, Niskayuna, NY (US);
Srinivas Prasad Sista, Niskayuna, NY (US);
Clark David Nelson, Concord Township, OH (US);
Jenna Marie Baldesare, East Cleveland, OH (US);
CURRENT LIGHTING SOLUTIONS, LLC, East Cleveland, OH (US);
Abstract
A process for preparing a Mndoped phosphor of formula I includes gradually adding a first solution comprising a source of M and HF and a second solution comprising a source of Mn to a reactor, in the presence of a source of A and an anion selected from phosphate, sulfate, acetate, and combinations thereof, to form a product liquor comprising the Mndoped phosphor. The process also includes gradually discharging the product liquor from the reactor while volume of the product liquor in the reactor remains constant. A is Li, Na, K, Rb, Cs, or a combination thereof; M is Si, Ge, Sn, Ti, Zr, Al, Ga, In, Sc, Y, La, Nb, Ta, Bi, Gd, or a combination thereof; x is the absolute value of the charge of the [MF] ion; and y is 5, 6 or 7.