Inventor · disambiguated record
Willem F. Druyvesteyn
Also filed as: DRUYVESTEYN WILLEM F · DRUYVESTEYN WILLEM FREDERIK
11 granted patents·448 citations·filing 1974–1996
89Inventor score
Top patents by PatentIndex Score
11 records- 0198US5161210ACoder for incorporating an auxiliary information signal in a digital audio signal, decoder for recovering such signals from the combined signal, and record carrier having such combined signal recorded thereonPHILIPS CORP·Filed 1989·Granted Nov 3, 1992·382 cites·14 claims
- 0281US4165525AMagnetic head having a core provided on a substrate by means of thin-film technologyPHILIPS CORP·Filed 1978·Granted Aug 21, 1979·21 cites·3 claims
- 0366US4157591AMagnetic domain devicePHILIPS CORP·Filed 1976·Granted Jun 5, 1979·14 cites·14 claims
- 0452US4996621ASuperconducting device for reading information from a magnetic recording mediumPHILIPS CORP·Filed 1988·Granted Feb 26, 1991·14 cites·17 claims
- 0541US4091429ADevice for the magnetic recording by means of a magnetic strip domain as a recording/playback headPHILIPS CORP·Filed 1976·Granted May 23, 1978·4 cites·15 claims
- 0639US3944842AMagnetic domain logic deviceDORLEIJN JAN WILLEM FREDERIK·Filed 1974·Granted Mar 16, 1976·7 cites·3 claims
- 0732US3991233AMethod of manufacturing a magnetizable layer for a magnetic domain devicePHILIPS CORP·Filed 1975·Granted Nov 9, 1976·2 cites·1 claims
- 0831US5724430AAudio-visual arrangement and system in which such an arrangement is usedPHILIPS CORP·Filed 1996·Granted Mar 3, 1998·4 cites·19 claims
- 0928US4041478AMemory devicePHILIPS CORP·Filed 1975·Granted Aug 9, 1977·0 cites·8 claims
- 1023US3938111AMagnetic device for producing domainsPHILIPS CORP·Filed 1974·Granted Feb 10, 1976·0 cites·3 claims
- 1120US4052707AMagnetic device having domains of two different sizes in a single layerPHILIPS CORP·Filed 1976·Granted Oct 4, 1977·0 cites·9 claims
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Identity basis: PatentsView inventor disambiguation (2025Q4-odp release). How scoring works →