Inventor
MARUYAMA YOOJI
JP8 patents
Patents
8 patentsUS5481386AJan 2, 1996
Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same
HITACHI LTD67 citations96
US6611487B2Aug 26, 2003
Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same
HITACHI LTD14 citations92
US5715226AFeb 3, 1998
Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same
HITACHI LTD19 citations92
US5995474ANov 30, 1999
Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same
HITACHI LTD16 citations82
US6185177B1Feb 6, 2001
Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same
HITACHI LTD4 citations73
US5327371AJul 5, 1994
Information recording and reproducing apparatus
HITACHI LTD14 citations73
US5309388AMay 3, 1994
Solid state magnetic memory device
HITACHI LTD14 citations73
US4503517AMar 5, 1985
Magnetic bubble memory device
HITACHI LTD3 citations62