ALEXANDRIA, Va., Oct. 27 -- United States Patent no. 12,776,490, issued on Oct. 27, was assigned to Group14 Technologies Inc. (Woodinville, Wash.).

"Composite particle, method for producing the same, and applications thereof" was invented by Masato Fujita (Tokyo), Kunihiro Kojima (Tokyo), Yuji Ito (Tokyo) and Hirofumi Inoue (Tokyo).

According to the abstract* released by the U.S. Patent & Trademark Office: "A composite particle includes a particle including a carbon material and silicon, and a coating layer including carbon and oxygen on the surface of the particle, in which the composite particle has a true density of 1.80 to 1.99 g/cm3; in the Raman spectrum, a peak is present at 450 to 495 cm-1, and when the intensity of the peak is de...