Inventor
MAEDA MIYOZO
JP15 patents
Patents
15 patentsUS5214627AMay 25, 1993
Optical disk having read-exclusive and write-enable regions
FUJITSU LTD106 citations96
US4947372AAug 7, 1990
Optical information memory medium for recording and erasing information
FUJITSU LTD35 citations95
US5691072ANov 25, 1997
Magneto-optical recording medium and method of reproducing information recorded on such medium
FUJITSU LTD36 citations92
US5402411AMar 28, 1995
Constant amplitude of tracking error signals generated from a head guide track and a performed track
FUJITSU LTD32 citations92
US5353265AOct 4, 1994
Magneto optical overwriting methods using a single optical head designed for a two-beam overwrite
FUJITSU LTD26 citations92
US5144601ASep 1, 1992
Magneto-optical overwriting methods using erasing pulses, each of which has a higher frequency and narrower width than that of the overwriting pulses
FUJITSU LTD39 citations92
US5138572AAug 11, 1992
Optical information memory medium including indium (In) and bismuth (Bi)
FUJITSU LTD12 citations81
US6804183B2Oct 12, 2004
Rotation control method for controlling rotation of media having zones in radial direction and employing ZCAV system, and storage apparatus using the rotation control method
FUJITSU LTD10 citations74
US6030716AFeb 29, 2000
Magneto-optical recording medium and method of reproducing information recorded on such medium
FUJITSU LTD7 citations73
US5796712AAug 18, 1998
Optical disk having identification signal recorded between and used in common for two mutually adjacent tracks and optical disk unit therefor
FUJITSU LTD12 citations73
US5768245AJun 16, 1998
Optical disk apparatus
FUJITSU LTD11 citations73
US5072423ADec 10, 1991
Optical information memory medium recording and erasing information including gallium and antimony
FUJITSU LTD9 citations73
US5058061AOct 15, 1991
Method for recording information in an optical information memory medium including indium (in) and antimony (sb)
FUJITSU LTD10 citations73
US5381396AJan 10, 1995
Magneto-optical recording method and apparatus for recording information on a magneto-optical recording media
FUJITSU LTD13 citations71
US5337303AAug 9, 1994
Disk storage device having light receiving device located at improved position
FUJITSU LTD0 citations51