ALEXANDRIA, Va., May 26 -- United States Patent no. 12,637,751, issued on May 26, was assigned to TOCALO Co. LTD. (Kobe, Japan).
"Tungsten-based thermal spray coating and material for thermal spraying to obtain it" was invented by Kazuo Hamashima (Kobe, Japan), Masashi Morisasa (Kobe, Japan) and Shinsuke Anai (Kobe, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "To provide a new tungsten-based thermal spray coating suitable as e.g. a component for plasma etching device using halogen gas, and a material for thermal spraying for obtaining the thermal spray coating.A thermal spray coating characterized by containing tungsten as a matrix phase and oxides containing silicon and boron as a dispersed phase, a...