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:
Jan. 10, 2017
Filed:
Nov. 19, 2013
Jx Nippon Oil & Energy Corporation, Tokyo, JP;
Aisin Aw Co., Ltd., Aichi, JP;
Hajime Nakao, Tokyo, JP;
Hitoshi Komatsubara, Tokyo, JP;
Kazunori Ishikawa, Aichi, JP;
Katsuhito Yamada, Aichi, JP;
JX Nippon Oil & Enery Corporation, Tokyo, JP;
AISIN AW CO., LTD., Anjo-shi, Aichi, JP;
Abstract
A lubricating oil composition for transmissions having improved fuel saving properties, excellent metal fatigue prevention properties, and heat resistance containing: a lubricating base oil containing (A) a mineral base oil having a 100° C. kinematic viscosity of 1.5 mm/s or higher and 3.5 mm/s or lower, a pour point of −25° C. or lower, a viscosity index of 105 or greater, a % Cof 85 or greater, a % Cof 2 or greater and 20 or less and a % Cof 3 or less and (B) a monoester-based base oil having a 100° C. kinematic viscosity of 2 to 10 mm/s; (C) a phosphorus acid ester; and (D) a boronated ashless dispersant, the ratio of the mass percent of boron to the mass percent of phosphorus in the composition (B/P) being from 0.07 to 0.42, and the composition having a 100° C. kinematic viscosity of 2.5 to 4.0 mm/s is described.