ALEXANDRIA, Va., Sept. 17 -- United States Patent no. 12,415,965, issued on Sept. 16, was assigned to KANTO DENKA KOGYO Co. LTD. (Tokyo).
"Additive for lubricants" was invented by Kazuto Yoshinari (Shibukawa, Japan), Yuki Goto (Shibukawa, Japan), Yukinari Oguma (Tokyo) and Hidehiko Iinuma (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "An additive for lubricants containing, a ZrO2 particle coated with a silane coupling agent, and a dispersion medium for the ZrO2 particle, wherein a BET specific surface area of the ZrO2 particle coated with the silane coupling agent obtained by removing the dispersion medium is 40% or more of a BET specific surface area of the ZrO2 particle before coating with the silan...