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. 04, 1997
Filed:
Jun. 22, 1988
Applicant:
Inventors:
Akio Inoue, Fuji, JP;
Yoshio Suzuki, Fuji, JP;
Assignee:
Primary Examiner:
Int. Cl.
CPC ...
C09K / ; C10M / ; C10M / ;
U.S. Cl.
CPC ...
252 73 ; 252 74 ; 252 75 ; 252572 ;
Abstract
An electroviscous fluid which consists essentially of a non-conductive liquid and, dispersed therein, anhydrous spherical multilayered particles comprising particles at least whose surfaces are conductive and, formed thereon, a non-conductive layer having a thickness of about 0.1 to 1 .mu.m. The electroviscous fluid is stable at both ambient temperature and elevated temperatures, i.e., up to at least about 200.degree. C. in an applied electric potential with an alternating current or a pulsating direct current.