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:
Jul. 07, 2020
Filed:
Sep. 15, 2016
Applicants:
Honda Motor Co., Ltd., Minato-ku, Tokyo, JP;
Idemitsu Kosan Co., Ltd., Chiyoda-ku, Tokyo, JP;
Inventors:
Kentaro Komori, Wako, JP;
Daijiro Endo, Wako, JP;
Shuichi Sakanoue, Ichihara, JP;
Seiichiro Yamamoto, Tokyo, JP;
Assignees:
Honda Motor Co., Ltd., Tokyo, JP;
Idemitsu Kosan Co., Ltd., Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01F 1/44 (2006.01); C10M 133/06 (2006.01); C10M 171/00 (2006.01); F16F 9/53 (2006.01); F16F 15/023 (2006.01);
U.S. Cl.
CPC ...
H01F 1/447 (2013.01); C10M 133/06 (2013.01); C10M 171/00 (2013.01); C10M 171/001 (2013.01); F16F 9/535 (2013.01); F16F 15/023 (2013.01); C10M 2215/04 (2013.01); C10N 2230/06 (2013.01); C10N 2230/60 (2013.01); C10N 2240/205 (2013.01);
Abstract
This vibration damping device () includes a magnetorheological fluid composition in a cylinder (). The magnetorheological fluid composition includes magnetic particles; a dispersant having the magnetic particles dispersed therein; and a friction modifier. The friction modifier is an amine-based additive having a hydrocarbon chain having 14 to 22 carbon atoms, preferably an alkyl chain or an alkenyl chain. The content of the friction modifier is 0.1 to 5 mass %.