Inventor
AWANO HIROYUKI
JP32 patents
⚠️ This page may combine multiple inventors who share the name “AWANO HIROYUKI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
HITACHI MAXELL
17 patentsUS6657927B1Dec 2, 2003
Optical head and apparatus provided therewith
HITACHI MAXELL28 citations93
US6893746B1May 17, 2005
Magnetic recording medium with high thermal stability, method for producing the same, and magnetic recording apparatus
HITACHI MAXELL43 citations92
US6633514B1Oct 14, 2003
Magneto-optical reproducing method using a plural of different reproducing beams
HITACHI MAXELL25 citations92
US6455174B1Sep 24, 2002
Magnetic recording medium, recording and reproducing head, and magnetic recording and reproducing method
HITACHI MAXELL28 citations92
US6385141B1May 7, 2002
Magneto-optical recording method capable of adjusting the sizes magnetic domain
HITACHI MAXELL18 citations92
US6424601B1Jul 23, 2002
Magneto-optical recording media having an auxiliary magnetic layer
HITACHI MAXELL22 citations91
US6628574B1Sep 30, 2003
Reproducing method and reproducing apparatus using plural light beam powers for transferring a magnetic domain
HITACHI MAXELL45 citations90
US6477118B1Nov 5, 2002
Method and apparatus for recording and reproducing information by applying field in a direction other than the direction of magnetization or the direction to a surface of an information recording medium
HITACHI MAXELL28 citations90
US6781926B2Aug 24, 2004
Magneto-optical head having heat sink layer
HITACHI MAXELL17 citations84
US6556516B1Apr 29, 2003
Reproducing method and reproducing apparatus for magneto-optical recording medium using different radiation patterns
HITACHI MAXELL13 citations84
US6388954B1May 14, 2002
Magneto-optical recording medium having clock-marks on recording layer and apparatus for recording and reproducing same
HITACHI MAXELL18 citations83
US7110327B2Sep 19, 2006
Magneto-optical recording and reproducing method, using reproducing layer with high saturation magnetization
HITACHI MAXELL8 citations74
US6693854B2Feb 17, 2004
Reproducing method and reproducing apparatus for magneto-optical recording medium
HITACHI MAXELL11 citations74
US6904002B2Jun 7, 2005
Magneto-optical reproducing method using a plurality of different reproducing beams
HITACHI MAXELL3 citations62
US6674693B1Jan 6, 2004
Recording method, reproducing method and recording and reproducing apparatus for magneto-optical recording medium
HITACHI MAXELL2 citations62
US6584044B2Jun 24, 2003
Magneto-optical recording apparatus using multiple magnetic field strengths for recording different mark lengths
HITACHI MAXELL3 citations62
US7434241B2Oct 7, 2008
Recording and reproducing apparatus of thin optical disc
HITACHI MAXELL0 citations41
HITACHI LTD
10 patentsUS5851643ADec 22, 1998
Magnetic recording media and magnetic recording read-back system which uses such media
HITACHI LTD192 citations99
US5481386AJan 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
US5886969AMar 23, 1999
High-density information recording/reproducing method
HITACHI LTD17 citations92
US5835469ANov 10, 1998
High-density information recording/reproducing method
HITACHI LTD24 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
US5909410AJun 1, 1999
Optical magnetic recording medium and optical magnetic reproducing method
HITACHI LTD9 citations74
US6185177B1Feb 6, 2001
Flying type optical head integrally formed with light source and photodetector and optical disk apparatus with the same
HITACHI LTD4 citations73
US5263015ANov 16, 1993
Magneto-optical recording media and overwrite recording method using the same
HITACHI LTD4 citations63
SANYO ELECTRIC CO
2 patentsUS6301199B1Oct 9, 2001
Magneto-optical recording medium and recording/reproducing apparatus therefor in which recorded magnetic domains are transferred from the recording layer to the reproducing layer
SANYO ELECTRIC CO6 citations63
US6847590B2Jan 25, 2005
Magneto-optical recording medium including a calibration magnetic domain recorded in a predetermined pattern in a recording layer
SANYO ELECTRIC CO0 citations52