Johan P. W. B. Duchateau

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Wellen, BE

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Patents Grantslast 30 patents

Information Patent Grant
Method and device for writing an optical record carrier
- Patent number 6,285,647
- Issue date Sep 4, 2001
- U.S. Philis Corporation
- Roel Van Woudenberg
- G11 - INFORMATION STORAGE
Information Patent Grant
Method and device for writing optical record carriers
- Patent number 6,243,339
- Issue date Jun 5, 2001
- U.S. Philips Corporation
- Johannes H. M. Spruit
- G11 - INFORMATION STORAGE
Information Patent Grant
Optical recording medium
- Patent number 6,021,109
- Issue date Feb 1, 2000
- U.S. Philips Corporation
- Johannes H. M. Spruit
- G11 - INFORMATION STORAGE