De La Rue International Limited

Acreo Swedich Ict Ab

Philip George Cooper

Mats Robertsson

Petronella Norberg

Xin Wang

Magnus Berggren

Peter Andersson Ersman

Staffan Nordlinder

Anna Malmström

James Peter Snelling

Lars-Olov Bror Hennerdal

Anna Malmstroem

Lars-Olov Hennerdal

High frequency currents may be rectified by means of a printable diode comprising a first and a second electrode, between which a semiconducting layer comprising semiconducting particles embedded in an inert matrix, and a conducting layer comprising conducting particles embedded in an inert matrix are arranged.

Diode, use thereof, and a method for producing the same

The authenticity of a security document, such as a bank note, is verified by use of a security feature arranged in or on the document, which security feature comprises an antenna arranged to receive EM-radiation from an external energy source; a rectifier arranged to receive electric energy from the antenna and convert it into a rectified current; and an electrochromic display arranged to alter its electrochromic state in response to said rectified current. Hence, a security feature able alter its appearance in response to EM-radiation is provided, which comprises a display that can be given a large variety of two dimensional shapes.

Security document circuit

Growing community of inventors

Stockbridge, GA, United States of America

Philip George Cooper