Company Filing History:
Years Active: 1990-1996
Title: The Innovative Contributions of Richard R Borchardt
Introduction
Richard R Borchardt is a notable inventor based in Towanda, PA, who has made significant contributions to the field of phosphor technology. With a total of two patents to his name, Borchardt has developed methods that enhance the performance and safety of phosphors used in various applications.
Latest Patents
One of Borchardt's latest patents is titled "Method of making an unactivated yttrium tantalate x-ray phosphor." This innovative method involves creating a high brightness phosphor without the use of a lithium chloride containing flux. Instead, it utilizes a high surface area aluminum oxide as the source of the aluminum additive, along with a lithium sulfate flux. This approach results in an efficient and effective phosphor suitable for x-ray applications.
Another significant patent is the "Method for producing cadmium free green emitting CRT phosphor." This cadmium-free cathodoluminescent phosphor composition consists of zinc sulfide activated with specific percentages of copper and aluminum. The process involves solid-state heating of various raw materials, including a relatively pure zinc sulfide and a second zinc sulfide containing chloride ions. The mixture is heated in a nitrogen-carbon disulfide atmosphere at high temperatures, resulting in a phosphor with desirable emission characteristics.
Career Highlights
Throughout his career, Richard R Borchardt has worked with prominent companies such as GTE Products