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. 18, 1994
Filed:
Sep. 03, 1992
Applicant:
Inventors:
Hiroshi Hasegawa, Kanagawa, JP;
Umekichi Sasaki, Kanagawa, JP;
Fujio Komatu, Kanagawa, JP;
Shigetoshi Ogura, Kanagawa, JP;
Hideo Yokota, Kanagawa, JP;
Assignee:
Nippon Oil Co., Ltd., Tokyo, US;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C10M / ;
U.S. Cl.
CPC ...
252 68 ; 252 32005 ; 252 785 ; 252 / ;
Abstract
Lubricating oil compositions comprising a base oil and a halogen containing ester of phosphoric acid having a specified structure in an amount in the range of from 0.01 to 5 parts by weight relative to 100 parts by weight of the base oil, and lubricating oil compositions further comprising an epoxy compound in an amount in the range of from 0.1 to 5 parts by weight relative to 100 parts by weight of the base oil.