ALEXANDRIA, Va., Jan. 28 -- United States Patent no. 12,534,679, issued on Jan. 27, was assigned to IDEMITSU KOSAN Co. LTD. (Tokyo).
"Lubricant base oil and lubricant composition" was invented by Kentaro Kojima (Tokyo).
According to the abstract* released by the U.S. Patent & Trademark Office: "A lubricant base oil for use in the preparation of a cooling lubricant composition, may have a % CP of 60 or more, and the dynamic viscosity at 40deg C. is less than 3 mm2/s. Such a lubricant base oil may include a base oil (A) having % CP of 60 or more and a kinematic viscosity at 40deg C. of less than 3 mm2/s, the base oil (A) being 80% by mass or more of the total lubricant base oil mass. Such a lubricant base oil may further include a base oil ...