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:
Aug. 08, 2017
Filed:
Nov. 24, 2010
Hiroshi Fujita, Ichihara, JP;
Toshihiko Ichihashi, Ichihara, JP;
Kenji Kojima, Fuji, JP;
Yoshie Arakawa, Fuji, JP;
Makoto Maeda, Fuji, JP;
Hideki Usuki, Fuji, JP;
Hiroshi Fujita, Ichihara, JP;
Toshihiko Ichihashi, Ichihara, JP;
Kenji Kojima, Fuji, JP;
Yoshie Arakawa, Fuji, JP;
Makoto Maeda, Fuji, JP;
Hideki Usuki, Fuji, JP;
IDEMITSU KOSAN CO., LTD, Tokyo, JP;
JATCO Ltd., Fuji-shi, JP;
NISSAN MOTOR CO., LTD, Yokohama-shi, JP;
Abstract
A lubricating oil composition for a continuously variable transmission contains at a specific content: (A) a mineral oil or PAO having a sulfur content of 0.03 mass % or less and a kinematic viscosity at 100 degrees C. from 1.5 mm/s to 3 mm/s; (B) a mineral oil or PAO having a sulfur content of 0.03 mass % or less and a kinematic viscosity at 100 degrees C. from 5.5 mm/s to 8 mm/s; (C) PAO having a kinematic viscosity at 100 degrees C. from 30 mm/s to 400 mm/s; and (D) a polymethacrylate having a mass average molecular weight of 10000 to 40000, in which the total content of the components (C) and (D) is 19 mass % or more and the lubricating oil composition has a kinematic viscosity at 100 degrees C. from 5.5 mm/s to 6.5 mm/s and a kinematic viscosity at −20 degrees C. of 680 mm/s or less.