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:
Mar. 18, 2014
Filed:
Apr. 07, 2009
Yukitoshi Fujinami, Ichihara, JP;
Shigeo Hara, Ichihara, JP;
Hiroyuki Kitano, Chiyoda-ku, JP;
Kensaku Fujinaka, Nagaokakyo, JP;
Hironori Yoshimura, Nagaokakyo, JP;
Yasushi Ohara, Nagaokakyo, JP;
Yukitoshi Fujinami, Ichihara, JP;
Shigeo Hara, Ichihara, JP;
Hiroyuki Kitano, Chiyoda-ku, JP;
Kensaku Fujinaka, Nagaokakyo, JP;
Hironori Yoshimura, Nagaokakyo, JP;
Yasushi Ohara, Nagaokakyo, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
A grease composition includes: a poly-α-olefin having a kinematic viscosity at 40 degrees C. of 60 to 320 mm/s, the poly-α-olefin being contained in an amount of 50 mass % or more relative to a whole composition; a thickener that is a lithium salt of a hydroxyl-free fatty acid having 10 to 22 carbon atoms; and an ashless dithiocarbamate and/or zinc dithiocarbamate that are contained in an amount of 0.1 to 1.5 mass % in terms of sulfur relative to a whole composition. In the grease composition, a phosphorous content is 0.05 mass % or less relative to the whole composition, and a worked penetration is in a range from 265 to 310.