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:
Nov. 24, 2020
Filed:
Mar. 02, 2017
Applicant:
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Inventor:
Tatsuya Hamachi, Chiba, JP;
Assignee:
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Primary Examiner:
Int. Cl.
CPC ...
C10M 169/04 (2006.01); C10M 145/14 (2006.01); F16H 57/04 (2010.01); C10M 101/02 (2006.01); F16C 33/10 (2006.01); F16C 33/66 (2006.01); C10N 20/02 (2006.01); C10N 20/04 (2006.01); C10N 30/02 (2006.01); C10N 30/00 (2006.01); C10N 40/04 (2006.01);
U.S. Cl.
CPC ...
C10M 169/041 (2013.01); C10M 101/02 (2013.01); C10M 145/14 (2013.01); F16H 57/04 (2013.01); C10M 2203/1006 (2013.01); C10M 2207/026 (2013.01); C10M 2209/084 (2013.01); C10M 2215/04 (2013.01); C10M 2215/28 (2013.01); C10M 2219/046 (2013.01); C10N 2020/02 (2013.01); C10N 2020/04 (2013.01); C10N 2030/02 (2013.01); C10N 2030/68 (2020.05); C10N 2040/04 (2013.01); F16C 33/10 (2013.01); F16C 33/66 (2013.01);
Abstract
Provided are a lubricating oil composition containing a mineral oil (1) having a kinematic viscosity at 100° C. of 2 mm/s or more and less than 2.5 mm/s, and a polymethacrylate (2) having a functional group containing an oxygen atom in the molecule while having a specific structural, unit, which satisfies both high viscosity index and high shear stability, and a lubrication method and a transmission using the lubricating oil composition.