US Patent Issued to Niterra Materials on May 12 for "Ceramic ball material comprising a band-portion over surface of a spherical portion, and method for manufacturing ceramic ball" (Japanese Inventors)

ALEXANDRIA, Va., May 12 -- United States Patent no. 12,624,727, issued on May 12, was assigned to Niterra Materials Co. Ltd. (Yokohama, Japan).

"Ceramic ball material comprising a band-portion over surface of a spherical portion, and method for manufacturing ceramic ball" was invented by Kai Funaki (Yokohama Kanagawa, Japan) and Shoya Sano (Yokohama Kanagawa, Japan).

According to the abstract* released by the U.S. Patent & Trademark Office: "A ceramic ball material according to the present embodiment includes a spherical portion, and a band-shaped portion formed over a circumference of a surface of the spherical portion. The band-shaped portion has a width in a range of 0.5 mm or more and 4.0 mm or less, both shoulders of which are provid...