Adriaan W. De Poorter

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Optical recording disc
- Patent number 4,492,967
- Issue date Jan 8, 1985
- U.S. Philips Corporation
- Dirk J. Broer
- G11 - INFORMATION STORAGE
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 disc
- Patent number 4,318,112
- Issue date Mar 2, 1982
- U.S. Philips Corporation
- Petrus J. Kivits
- 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