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.

Date of Patent:
Jan. 31, 2012

Filed:

Mar. 14, 2007
Applicants:

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;

Inventors:

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;

Assignees:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C07F 7/22 (2006.01); C10G 71/00 (2006.01);
U.S. Cl.
CPC ...
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.


Find Patent Forward Citations

Shirahama, Shinichi. (2012). Lube base oil, lubricating oil composition for internal combustion engine, and lubricating oil composition for drive transmission device (U.S. Patent No. 8105990). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8105990

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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