Inventor
IDE TATSUNORI
JP15 patents
⚠️ This page may combine multiple inventors who share the name “IDE TATSUNORI”. Patents are grouped by organization below to help distinguish them — per-person disambiguation is on the roadmap.
NEC CORP
10 patentsUS5631895AMay 20, 1997
Optical information recording medium
NEC CORP32 citations92
US5521901AMay 28, 1996
Re-writable phase change type optical disk with suppressed recording mark distortion
NEC CORP23 citations92
US6646978B2Nov 11, 2003
Optical storage medium with improved substrate structure to provide uniform signal quality
NEC CORP6 citations72
US5506022AApr 9, 1996
Optical information-recording medium
NEC CORP7 citations72
US7471617B2Dec 30, 2008
Optical disc medium having extended record control data areas, optical disc apparatus using the same, and data recording method on the same
NEC CORP3 citations63
US7355957B2Apr 8, 2008
Optical disc medium having a system information recording area of low recording density
NEC CORP6 citations62
US5982739ANov 9, 1999
Optical data recording apparatus producing a laser beam having a diameter larger than optical media groove width
NEC CORP4 citations61
US5342714AAug 30, 1994
Method for recording, erasing and reproducing data on an optical data recording medium
NEC CORP5 citations61
US5492794AFeb 20, 1996
Information recording medium
NEC CORP4 citations60
US6875488B2Apr 5, 2005
Optical information recording medium
NEC CORP0 citations51
TOSHIBA KK
3 patentsUS7643394B2Jan 5, 2010
Optical disk, optical disk recording method, and optical disk recording apparatus
TOSHIBA KK2 citations62
US7551533B2Jun 23, 2009
Optical disk, optical disk drive and method of playing back an optical disk
TOSHIBA KK0 citations52
US7471602B2Dec 30, 2008
Recording/reproducing method and recording/reproducing apparatus and optical disk
TOSHIBA KK0 citations52