Patent · US Expired

Magnetooptical modulator

US4578651A · kind A · utility

12Cited by

6References

12Claims

0Family size

Assignee

U.S. Philips Corporation · US

Inventors

Heinrich Heitmann · Rellingen, DE
Wolfgang F. M. Tolksdorf · Tornesch, DE
Fritz Welz · Schwäbisch Hall, DE
Klaus Witter · Hamburg, DE

Key dates

Filing date	Sep 29, 1982
Grant date	Mar 25, 1986
Priority date	—
Expiry date	Sep 29, 2002

Classification

Technology area (CPC H)Electricity
CPC primaryH01F10/06
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

In a magnetic layer of a magnetooptical modulator having fixed magnetic single domain areas, the areas of the layer present between the single domain areas are made electrically conductive by reduction.

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