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. 23, 2010
Filed:
Jul. 05, 2007
Shigeki Matsui, Yokohama, JP;
Akira Yaguchi, Yokohama, JP;
Kazuo Tagawa, Yokohama, JP;
Shinichi Shirahama, Yokohama, JP;
Shigeki Matsui, Yokohama, JP;
Akira Yaguchi, Yokohama, JP;
Kazuo Tagawa, Yokohama, JP;
Shinichi Shirahama, Yokohama, JP;
Nippon Oil Corporation, Tokyo, JP;
Petroleum Energy Center, Tokyo, JP;
Abstract
The invention provides a lubricating base oil with a saturated component content of 90% by mass or greater, a proportion of cyclic saturated components of no greater than 40% by mass of the saturated components, a viscosity index of 110 or greater, an aniline point of 106 or greater and an ε-methylene proportion of 14-20% of the total constituent carbons, as well as a lubricating oil composition comprising the lubricating base oil.