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:
Apr. 07, 1998
Filed:
Apr. 29, 1996
Fujikura Kasei Co., Ltd., Tokyo, JP;
Abstract
An electrorheological fluid composition wherein inorganic/organic composite particles comprising a core 1 comprising organic polymeric compound and a shell 3 comprising inorganic microparticles 2 which are electrically semiconducting in a semiconducting region in which conductivity is within a range of 10.sup.3-10.sup.-11 .OMEGA..sup.-1 /cm at room temperature, are dispersed in an electrically insulating medium. These inorganic/organic composite particles are produced by means of a method in which the cores 1 and the shells 3 are simultaneously formed, and the surfaces thereof are preferably polished. An electrorheological fluid composition possessing electrorheological effects, having superior storage stability, capable of use over long periods, having little abrasiveness, which is not affected by environmental temperature or humidity, a current value of which is stable, and which has little power consumption.