U.S. Philips Corporation

E.i. Dupont De Nemours and Company

U.S. Phillips Corporation

Du Pont Optical Company

Integrated Cryoelectronic Inc.

George H Johnson

Howard E Simmons

Josephus M Wijn

Johannes P Van Liempd

Michael G Fickes

Martinus J De Graaf

Robert A Martin

A composition of matter is disclosed in which nanophase metal particles are effectively dispersed in a polymer matrix so that hitherto unattainable thermoelectric properties are attained. Preferred polymers and metals are taught. A method of making the composition of matter useful as a themoelectric composite material using a conducting polymer matrix is disclosed as is a thermoelectric cooling/heating device which uses that composition.

Composite thermoelectric material

The invention relates to a method of manufacturing a metal matrix suitable for use in the manufacture of optical discs, in which a master plate is used which comprises a recording double layer of a synthetic resin in which each layer comprises a laser light-absorbing dye, the master plate is exposed to modulated laser light in which the laser light in both layers of the recording layer is absorbed and in which as a result of the exposure information bits are formed in the form of bumps having variable longitudinal dimensions and the same width dimensions and the master plate on the side of the recording layer comprises a metal layer which is separated from the master plate, as well as a master plate which is suitable for use in the method described hereinbefore.

Method of manufacturing a matrix and a master plate suitable for use in

A method for making optical recording media in which the optically readable information is embossed therein by means of an information master recording which is directly usable as a stamper.

Direct effect master/stamper for optical recording

Method of recording information, recording element manufactured according to the method and method of producing a metal matrix. Recording in which a recording double layer which has an absorbing dye is exposed to laser light of a higher and a lower energy level, in which by exposure to laser light of the lower energy level, a bump is formed in the recording layer and in which by exposure to laser light of the higher energy level a bulge is formed which at the surface comprises a groove, as well as a recording element obtained by using the method and a method of manufacturing a metal copy from the recording element.

Method of recording information, recording element manufactured

Recording in which a recording double layer which has an absorbing dye is exposed to laser light of a higher and a lower energy level, in which by exposure to laser light of the lower energy level, a bump is formed in the recording layer and in which by exposure to laser light of the higher energy level a bulge is formed which at the surface comprises a groove, as well as a recording element obtained by using the method and a method of manufacturing a metal copy from the recording element.

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Wilmington, DE, United States of America

George H Johnson