This inventor holds 5 USPTO granted patents and 1 published patent application. Top assignees: Osram Sylvania Inc., Global Tungsten & Powders Corp.. Active years: 2004-2013.
Company Filing History:
Years Active: 2004-2013
Title: Innovations of Xianzhong Chen in Electroluminescent Phosphors
Introduction
Xianzhong Chen is a notable inventor based in Sayre, PA (US). He has made significant contributions to the field of electroluminescent materials, holding a total of 5 patents. His work focuses on the development of phosphors that enhance the performance and efficiency of electroluminescent devices.
Latest Patents
Among his latest patents is the invention of an electroluminescent ZnS:Mn phosphor and a method of making it. This patent discloses a phosphor comprising ZnS:Mn that is free of or substantially free of copper, with a D50 size of less than about 5 micrometers. Additionally, he has developed a method for preparing a ZnS:Mn phosphor, which involves contacting a first solution containing a Zn compound and a manganese source with a second solution containing a sulfur source agent. The mixture is then heated to form the phosphor.
Another significant patent involves the method of making electroluminescent phosphors with small particle sizes. This patent describes a phosphor powder that includes copper-activated zinc sulfide particles with a D50 value of no more than 10 micrometers. The method includes firing copper-doped zinc sulfide mixed with zinc oxide, sulfur, and a chloride-containing flux, followed by rapid cooling and second firing to achieve the desired powder characteristics.
Career Highlights
Xianzhong Chen has worked with prominent companies in the industry, including Osram Sylvania Inc. and Global Tungsten & Powders Corporation. His experience in these organizations has contributed to his expertise in the development of advanced phosphor materials.
Collaborations
Throughout his career, Xianzhong has collaborated with notable colleagues such as Shellie K Northrop and Robert L Stevens. These collaborations have further enriched his research and innovation in the field of electroluminescent materials.
Conclusion
Xianzhong Chen's contributions to the field of electroluminescent phosphors demonstrate his innovative spirit and dedication to advancing technology. His patents reflect a commitment to improving the efficiency and performance of electroluminescent devices, making a significant impact in the industry.