ALEXANDRIA, Va., Sept. 10 -- United States Patent no. 12,410,379, issued on Sept. 9, was assigned to IDEMITSU KOSAN Co. LTD. (Chiyoda-ku, Japan).
"Lubricant oil composition" was invented by Kenji Sunahara (Chiyoda-ku, Japan), Shoichiro Fujita (Chiyoda-ku, Japan), Masaya Kubota (Chiyoda-ku, Japan) and Shota Kato (Chiyoda-ku, Japan).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lubricating oil composition, including a base oil (P) and a copolymer (X). The copolymer (X) contains the following structural units (a) to (c): structural unit (a): a structural unit derived from a monomer (A) having a (meth)acryloyl group and a linear or branched alkyl group having 6 to 24 carbon atoms, structural unit (b): a struct...