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, 1986
Filed:
Jun. 13, 1984
Applicant:
Inventors:
Hirohisa Miura, Toyota, JP;
Hiroshi Satou, Toyota, JP;
Hidenori Katagiri, Toyota, JP;
Toshio Natsume, Toyota, JP;
Hidekazu Azuma, Toyota, JP;
Assignee:
Toyota Jidosha Kabushiki Kaisha, Toyota, JP;
Primary Examiner:
Int. Cl.
CPC ...
H01F / ; B22F / ;
U.S. Cl.
CPC ...
252 6251 ; 252 6255 ; 75 / ; 75 / ; 75 / ;
Abstract
A magnetic fluid having a base liquid and magnetic particles with so small average particle diameter as to be of some hundreds of angstroms dispersed in the base liquid. Such a magnetic fluid is produced by ejecting a molten magnetic metal adiabatically from an expansion nozzle against a bath of a base liquid.