Pieter Zalm

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Optical information disk comprising tellurium, selenium and antimony
- Patent number 4,476,214
- Issue date Oct 9, 1984
- U.S. Philips Corporation
- Pieter Zalm
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording device having several ablative recording layers
- Patent number 4,290,075
- Issue date Sep 15, 1981
- U.S. Philips Corporation
- Bernardus A. J. Jacobs
- G11 - INFORMATION STORAGE
Information Patent Grant
Information-recording element having a dye-containing auxiliary layer
- Patent number 4,230,939
- Issue date Oct 28, 1980
- U.S. Philips Corporation
- Marinus R. J. de Bont
- G03 - PHOTOGRAPHY CINEMATOGRAPHY ELECTROGRAPHY HOLOGRAPHY