Inventor
TORAZAWA KENJI
JP16 patents
Patents
16 patentsUS6339571B1Jan 15, 2002
Storage medium recorded with recording/reproducing conditions depending upon recording densities and method of recording and reproducing therefor
SANYO ELECTRIC CO92 citations98
US6621772B2Sep 16, 2003
Record medium and reproducing apparatus of the same for detecting an offset correction
SANYO ELECTRIC CO93 citations97
US5999685ADec 7, 1999
Light guide plate and surface light source using the light guide plate
SANYO ELECTRIC CO251 citations97
US6108296AAug 22, 2000
Optical recording disc capable of preventing illegal copy
SANYO ELECTRIC CO43 citations94
US6538968B1Mar 25, 2003
Information recording/reproducing apparatus
SANYO ELECTRIC CO37 citations92
US6324138B1Nov 27, 2001
Digital disk recording and reproduction apparatus
SANYO ELECTRIC CO21 citations92
US6198710B1Mar 6, 2001
Digital recording method, digital disk, digital disk recording device, and digital disk reproducing device
SANYO ELECTRIC CO36 citations92
US5914929AJun 22, 1999
Optical disk recording/playback device with means to recognize, read from and record to multiple types of optical disk types
SANYO ELECTRIC CO44 citations91
US6400653B1Jun 4, 2002
Information recording/reproducing apparatus to record/reproduce information on a recording medium recorded with an address mark
SANYO ELECTRIC CO20 citations84
US6243326B1Jun 5, 2001
Recording and reproduction device for a magneto-optic recording medium capable of recording information according to optical super-resolution
SANYO ELECTRIC CO19 citations84
US5968678AOct 19, 1999
Magneto-optical recording medium and manufacturing method thereof
SANYO ELECTRIC CO12 citations73
US4993011AFeb 12, 1991
Optical recording apparatus with simultaneous erasing and recording
SANYO ELECTRIC CO14 citations73
US6438097B1Aug 20, 2002
Optical recording disc capable of preventing illegal copy
SANYO ELECTRIC CO12 citations72
US6262967B1Jul 17, 2001
Optical recording disc capable of preventing illegal copy
SANYO ELECTRIC CO12 citations72
US5363364ANov 8, 1994
Audio data recording/reproducing apparatus having digital high-speed dubbing function
SANYO ELECTRIC CO7 citations72
US5997276ADec 7, 1999
Optical disc manufacturing apparatus
SANYO ELECTRIC CO3 citations62