Wilhelmus D. A. M. van Gijsel

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Eindhoven, NL

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Patents Grantslast 30 patents

Information Patent Grant
Loudspeaker system for converting a digitized electric signal into...
- Patent number 4,612,420
- Issue date Sep 16, 1986
- U.S. Philips Corporation
- Joris A. M. Nieuwendijk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Loudspeaker system and loudspeaker for use in a loud-speaker system...
- Patent number 4,566,120
- Issue date Jan 21, 1986
- U.S. Philips Corporation
- Joris A. M. Nieuwendijk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Hybrid loudspeaker system for converting digital signals to acousti...
- Patent number 4,555,797
- Issue date Nov 26, 1985
- U.S. Philips Corporation
- Joris A. M. Nieuwendijk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ribbon-type transducer with a multi-layer diaphragm
- Patent number 4,544,806
- Issue date Oct 1, 1985
- U.S. Philips Corporation
- Joris A. M. Nieuwendijk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE
Information Patent Grant
Ribbon-type electro-acoustic transducer with low distortion and imp...
- Patent number 4,484,037
- Issue date Nov 20, 1984
- U.S. Philips Corporation
- Joris A. M. Nieuwendijk
- H04 - ELECTRIC COMMUNICATION TECHNIQUE