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. 05, 2014
Filed:
Aug. 30, 2010
Applicants:
Akio Mutou, Tokyo, JP;
Akira Yaguchi, Tokyo, JP;
Shigeki Matsui, Tokyo, JP;
Inventors:
Assignee:
JX Nippon Oil & Energy Corporation, Tokyo, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 145/14 (2006.01); C10M 173/02 (2006.01);
U.S. Cl.
CPC ...
Abstract
The lubricating oil composition of the invention includes a lubricating base oil with a kinematic viscosity at 100° C. of 1-6 mm/s, a % Cof 70 or greater and a % Cof no greater than 2, and a viscosity index improver which, when added to the lubricating base oil, results in an A/B ratio of less than 3.2 and a C/B ratio of less than 1.5. A is the thickening effect on the kinematic viscosity at 100° C., B is the thickening effect on the HTHS viscosity at 150° C., and C is the thickening effect on the HTHS viscosity at 100° C.