Inventor
GERRITSEN JAN
20 patents
⚠️ This page may combine multiple inventors who share the name “GERRITSEN JAN”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
PHILIPS CORP
14 patentsUS4441120AApr 3, 1984
Device for measuring and methods for adjusting the convergence of the electron beams in color display tubes
PHILIPS CORP53 citations92
US4027219AMay 31, 1977
Device for displaying color television images
PHILIPS CORP66 citations90
US4629933ADec 16, 1986
Cathode-ray tube having an electron gun with an astigmatic focusing grid
PHILIPS CORP20 citations81
US4401917AAug 30, 1983
Color display tube including cylindrical dipole correction magnets
PHILIPS CORP9 citations73
US4620134AOct 28, 1986
Cathode-ray tube
PHILIPS CORP8 citations70
US4220897ASep 2, 1980
Method of manufacturing a color display tube and color display tube manufactured according to said method
PHILIPS CORP15 citations68
US3965386AJun 22, 1976
Degaussing device for a color television display tube
PHILIPS CORP16 citations68
US4742279AMay 3, 1988
Color display tube with reduced deflection defocussing
PHILIPS CORP14 citations67
US4481476ANov 6, 1984
Picture display device comprising a picture display tube and a circuit for feeding the heater thereof
PHILIPS CORP3 citations62
US4233547ANov 11, 1980
Color television display device comprising a deflection coil unit provided with a deflection coil for the vertical deflection and deflection coil unit for such a display device
PHILIPS CORP2 citations62
US4625145ANov 25, 1986
Color display tube with magnetic field shaping means
PHILIPS CORP6 citations60
US4691139ASep 1, 1987
Display tube having ferromagnetic field shapers to prevent beam defocussing
PHILIPS CORP1 citations48
US5107171AApr 21, 1992
Cathode ray tube including means for vertically extending the spot
PHILIPS CORP0 citations41
US4902928AFeb 20, 1990
Color display tube
PHILIPS CORP0 citations41