ALEXANDRIA, Va., June 9 -- United States Patent no. 12,286,705, issued on April 29, was assigned to CemeCon AG (Wurselen, Germany).
"Coating apparatus and coating method having divided pulses" was invented by Walter May (Aachen, Germany), Werner Kolker (Herzogenrath, Germany) and Stephan Bolz (Aachen, Germany).
According to the abstract* released by the U.S. Patent & Trademark Office: "The invention relates to a coating method and to a coating device for coating a body. A magnetron cathode having a target is arranged in the vacuum chamber. Electrical power is supplied to the magnetron cathode such that a plasma is generated and the target is sputtered in order to deposit a coating on the body. The electrical power is periodically supplied...