The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 22, 2022
Filed:
Apr. 18, 2019
Toyota Jidosha Kabushiki Kaisha, Aichi, JP;
Shell Lubricants Japan K.k., Tokyo, JP;
Ryuji Maruyama, Tokyo, JP;
Kenji Ohara, Tokyo, JP;
Keiichi Moriki, Tokyo, JP;
Mitsuhiro Nagakari, Tokyo, JP;
Misato Kishi, Aichi, JP;
Kotaro Hiraga, Aichi, JP;
Takatoshi Shinyoshi, Aichi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Aichi, JP;
SHELL LUBRICANTS JAPAN K.K., Tokyo, JP;
Abstract
The purpose of the present invention is to provide a lubricant composition which can be applied as a gear oil for a high-output and high-speed gear mechanism, and whereby fuel saving as well as further wear resistance in a bearing of a pinion gear can be realized while maintaining excellent durability, seizure resistance, and stability are maintained. A lubricant composition containing a Fischer-Tropsch-derived base oil, a poly alpha-olefin, and an ester compound, and further containing an unsaturated fatty acid and/or a partial ester compound of an unsaturated fatty acid and a polyol, wherein the partial ester compound of an unsaturated fatty acid includes a monoester compound of an unsaturated fatty acid and a polyol in a ratio of 50% by mass with respect to the total amount of the partial ester compound, and the SAE viscosity grade of the lubricant composition is 75W-85 or lower.