Inventor
KURODA SUMIO
JP23 patents
⚠️ This page may combine multiple inventors who share the name “KURODA SUMIO”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
FUJITSU LTD
15 patentsUS5747136AMay 5, 1998
High-density magneto-optic disk and method of manufacturing the same
FUJITSU LTD61 citations96
US7630155B2Dec 8, 2009
Eccentricity correction method, signal processing circuit, magnetic storage apparatus and perpendicular magnetic recording medium
FUJITSU LTD35 citations92
US5978327ANov 2, 1999
Optical recording medium for land-and-groove recording system
FUJITSU LTD28 citations92
US6757126B1Jun 29, 2004
Magnetic recording medium having tracking control area formed adjacent data tracks
FUJITSU LTD16 citations84
US7203014B2Apr 10, 2007
Preformat method for magnetic recording medium, magnetic recording medium, and magnetic recording and reproducing apparatus
FUJITSU LTD7 citations73
US7203023B2Apr 10, 2007
Magnetic recording unit and magnetic recording medium
FUJITSU LTD8 citations73
US6865039B2Mar 8, 2005
Master medium for magnetic transfer, magnetic transferring and recording method, slave medium for magnetic recording, and method for producing a master medium for magnetic transfer
FUJITSU LTD7 citations73
US7602566B2Oct 13, 2009
Magnetic transfer master and method of formatting magnetic recording medium
FUJITSU LTD4 citations62
US6646961B1Nov 11, 2003
Optical recording medium driving apparatus
FUJITSU LTD6 citations62
US6356516B2Mar 12, 2002
Magneto-optical recording medium and reproducing method for information recorded on the medium
FUJITSU LTD3 citations62
US6248439B1Jun 19, 2001
Magneto-optical recording medium and reproducing method for information recorder on the medium
FUJITSU LTD5 citations62
US5599605AFeb 4, 1997
Magneto-optical recording medium and method for producing the same
FUJITSU LTD2 citations62
US7460322B2Dec 2, 2008
Magnetic transferring apparatus
FUJITSU LTD0 citations52
US7532421B2May 12, 2009
Servo demodulating circuit and method
FUJITSU LTD0 citations51
US7477464B2Jan 13, 2009
Manufacturing method of recording medium, electric/magnetic field copy master and electric/magnetic field copying device
FUJITSU LTD0 citations41