Patent · US Expired

Magnetic ink concentrate

US5500141A · kind A · utility

9Cited by

9References

2Claims

0Family size

Assignee

BASF SE

Inventors

Claudius Kormann · Schifferstadt, DE
Ekkehard Schwab · Neustadt, DE
Friedrich-Wilhelm Raulfs · Ludwigshafen, DE
Karin H. Beck · Ludwigshafen, DE

Key dates

Filing date	Sep 13, 1994
Grant date	Mar 19, 1996
Priority date	—
Expiry date	Sep 13, 2014

Classification

Technology area (CPC H)Electricity
CPC primaryH01F41/16
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A magnetic ink concentrate essentially consisting of a dispersion of superparamagnetic solid particles in water or alcohol in the presence of a dispersant, and a process for its preparation.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.