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:
Apr. 19, 2022
Filed:
Jan. 28, 2019
Idemitsu Kosan Co., Ltd., Chiyoda-ku, JP;
Yoji Sunagawa, Sodegaura, JP;
Takeshi Iwasaki, Chiba, JP;
IDEMITSU KOSAN CO., LTD., Chiyoda-ku, JP;
Abstract
To provide a lubricating oil composition achieving both of high traction coefficient and excellent low temperature fluidity at a higher level and having a high flash point, which contains a naphthene-based synthetic oil (a) having a flash point of 140° C. or higher, and an ester (b) having 5 to 32 carbon atoms and having a branched chain, wherein the content of the naphthene-based synthetic oil (a) based on the total amount of the composition is 35% by mass or more and less than 80% by mass, a method for producing the lubricating oil composition, and a continuously variable transmission using the lubricating oil composition.