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:
Jan. 31, 2012
Filed:
Mar. 14, 2007
Shinichi Shirahama, Yokohama, JP;
Masahiro Taguchi, Yokohama, JP;
Kazuo Tagawa, Yokohama, JP;
Takashi Sano, Yokohama, JP;
Shozaburo Konishi, Yokohama, JP;
Shigeki Matsui, Yokohama, JP;
Osamu Kurosawa, Yokohama, JP;
Shinichi Shirahama, Yokohama, JP;
Masahiro Taguchi, Yokohama, JP;
Kazuo Tagawa, Yokohama, JP;
Takashi Sano, Yokohama, JP;
Shozaburo Konishi, Yokohama, JP;
Shigeki Matsui, Yokohama, JP;
Osamu Kurosawa, Yokohama, JP;
Nippon Oil Corporation, Tokyo, JP;
Petroleum Energy Center, Tokyo, JP;
Abstract
The lubricating base oil of the invention satisfies at least one of conditions (a) or (b) below. The lubricating oil composition for an internal combustion engine according to the invention comprises the lubricating base oil of the invention, an ashless antioxidant containing essentially no sulfur as a constituent element, and at least one compound selected from among ashless antioxidants containing sulfur as a constituent element and organic molybdenum compounds. Also, a lubricating oil composition for a power train device according to the invention comprises the lubricating base oil of the invention, a poly(meth)acrylate-based viscosity index improver and a phosphorus-containing compound.