ALEXANDRIA, Va., Dec. 16 -- United States Patent no. 12,497,301, issued on Dec. 16, was assigned to KYOCERA Corp. (Kyoto, Japan).
"Heat-resistant member" was invented by Kentaro Kikuchi (Kirishima, Japan), Takahiro Ueno (Kirishima, Japan) and Satoshi Toyoda (Kirishima, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A heat-resistant member (1) according to the present disclosure contains alumina as a main component, and magnesium aluminate and boron. The content percentage of the magnesium aluminate at the surface is higher than the content percentage of the magnesium aluminate in a surface layer section located directly below the surface."
The patent was filed on Dec. 8, 2020, under Application No. 17...