WR

Willem Arie ROOS

U.S. Philips: 1 patents #4,133 of 8,851Top 50%
Overall (All Time): #3,651,524 of 4,157,543Top 90%
1
Patents All Time

Issued Patents All Time

Showing 1–1 of 1 patents

Patent #TitleCo-InventorsDate
5912637 Magnetic recording method and apparatus which provide at least two write pulses for each binary signal bit to be recorded Abraham Hoogendoorn, Johannes J. W. Kalfs 1999-06-15