JR

Jacobus J. M. Ruigrok

U.S. Philips: 31 patents #18 of 8,851Top 1%
Overall (All Time): #120,041 of 4,157,543Top 3%
31
Patents All Time

Issued Patents All Time

Showing 26–31 of 31 patents

Patent #TitleCo-InventorsDate
4927804 Thin-film transformer and magnetic head provided with such a transformer Victor Zieren 1990-05-22
4907115 Super conducting thin-film magnetic head including a magnetoresistive element Victor Zieren 1990-03-06
4764832 Magnetic transducing head having clad core faces Ulrich E. Enz, Cornelis W. M. P. Sillen 1988-08-16
4686472 Magnetic sensor having closely spaced and electrically parallel magnetoresistive layers of different widths Johannes A. C. Van Ooijen 1987-08-11
4670807 Magnetic write head with smooth frequency response Frederik W. Gorter, Jean-Paul G. R. Morel 1987-06-02
4669015 Multiple gap magnetic reading head 1987-05-26