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:
Sep. 14, 1999
Filed:
Mar. 25, 1998
Applicant:
Inventors:
Yoichi Suzuki, Fujisawa, JP;
Takashi Okaniwa, Fujisawa, JP;
Yukio Asahara, Shizuoka-ken, JP;
Keizo Nagasawa, Iwata-shi, JP;
Mitsuhiro Kakizaki, Fujisawa, JP;
Kiyoshi Takeuchi, Fujisawa, JP;
Yukio Hasegawa, Iwata-shi, JP;
Shinichi Takabe, Iwata-shi, JP;
Assignees:
Kyodo Yushi Co., Ltd,, Tokyo, JP;
NTN Corporation, Osaka, JP;
Primary Examiner:
Int. Cl.
CPC ...
C01M / ; C01M / ; C01M / ; C01M / ;
U.S. Cl.
CPC ...
508168 ; 508169 ; 508364 ; 508365 ; 508376 ; 508377 ; 508378 ; 508379 ; 508380 ;
Abstract
A grease composition for constant velocity joints comprising: (a) a base oil; (b) a diurea thickener of the formula (1):