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:
May. 13, 2014
Filed:
Oct. 24, 2007
Yukitoshi Fujinami, Chiba, JP;
Hitoshi Hata, Chiba, JP;
Shinya Nakatani, Kanagawa, JP;
Atsushi Yokouchi, Kanagawa, JP;
Yukitoshi Fujinami, Chiba, JP;
Hitoshi Hata, Chiba, JP;
Shinya Nakatani, Kanagawa, JP;
Atsushi Yokouchi, Kanagawa, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Abstract
Grease which includes a base oil containing at least 50% by mass of a specific diester compound of a glycol with a branched carboxylic acid, and a specific diurea compound as a thickener. The grease is excellent in low-temperature performance and has low oil separation tendency. In particular, when used in a rotation transmission device having a built-in one-way clutch, the grease can provide satisfactory clutch engagement performance (intermeshing) at low temperatures and is less apt to cause oil separation under high centrifugal force.