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:
Jul. 15, 2008

Filed:

Mar. 25, 2005
Applicants:

Miyoshi Marumo, Saitama, JP;

Yosuharu Yokoyama, Saitama, JP;

Hiroyuki Iwasaki, Tokyo, JP;

Inventors:

Miyoshi Marumo, Saitama, JP;

Yosuharu Yokoyama, Saitama, JP;

Hiroyuki Iwasaki, Tokyo, JP;

Assignee:

Tonengeneral Sekiyu K.K., Kanagawa, JP;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C10M 137/10 (2006.01);
U.S. Cl.
CPC ...
Abstract

An engine oil composition that has lower viscosity then the lowest viscosity grade specified by the current standard (SAE (Society of Automotive Engineers) viscosity classification) and achieves excellent abrasion resistance under conditions of high temperature and high shear rate without an increase in the amount of anti-abrasion agent, said engine oil composition characterized by the following facts: the engine oil composition contains 0.02-0.12 mass % of zinc dithiophosphate, measured in the phosphorous amount based on the total weight of the composition, in a base oil compromised of a mineral oil and/or a synthetic oil;


Find Patent Forward Citations

Marumo, Miyoshi. (2008). Low viscosity, high abrasion resistance engine oil composition (U.S. Patent No. 7399736). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/7399736

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

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