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:
Sep. 05, 1995
Filed:
Dec. 06, 1993
Applicant:
Inventor:
Chung N Chau, Sayne, PA (US);
Assignee:
Osram Sylvania Inc., Danvers, MA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C09K / ;
U.S. Cl.
CPC ...
2523 / ; 2323 / ;
Abstract
The method of this invention provides calcium halophosphate phosphors activated with antimony and manganese having higher quantum efficiencies at specific antimony concentrations. The higher quantum efficiencies are obtained as a result of increasing the phosphor's UV reflectivity by decreasing the phosphor's particle size without substantially decreasing the phosphor's emission.
Chau, Chung. (1995). Method for making a calcium halophosphate phosphor (U.S. Patent No. 5447660). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/5447660
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile