ALEXANDRIA, Va., June 25 -- United States Patent no. 12,338,368, issued on June 24, was assigned to ADMATECHS Co. LTD. (Miyoshi, Japan).
"Ferrule polishing material" was invented by Yusuke Tomioka (Miyoshi, Japan) and Tempo Nakamura (Miyoshi, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "Provided is a ferrule polishing material suitable for polishing a ferrule. A ferrule polishing material of the present invention solving the above object includes a binder formed from a resin material and abrasive grains dispersed in the binder. The resin material is formed from an epoxy resin. The abrasive grains are contained in an amount of not less than 80% and not greater than 91% with respect to the sum of masse...