Patent · US Expired

Marking device, method and apparatus for the production thereof and a method for reading a marking device of this type

US7055758B2 · kind B2 · utility

2Cited by

20References

13Claims

0Family size

Assignee

Berliner Elektronenspeicherring-Gesellschaft fur Synchrotronstrahlung m.b.H. · DE

Inventors

Jan Morenzin · Hennef (Sieg), DE
Daniel Schondelmaier · Brunsbüttel, DE
Wolfgang Eberhardt · Lich, DE

Key dates

Filing date	Jan 10, 2001
Grant date	Jun 6, 2006
Priority date	—
Expiry date	Jan 10, 2021

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T29/49133
WIPO fieldComputer technology
WIPO sectorElectrical engineering

Abstract

A marking device for the identification of an object includes laterally offset regions formed directly on the object with different magnetic characteristics. The different regions can have histeresis loops shifted differently to one another.

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