Inventor
NAGAURA TOSHIKAZU
JP8 patents
Patents
8 patentsUS5399461AMar 21, 1995
Optical disk for use in optical memory devices
SHARP KK81 citations95
US5820795AOct 13, 1998
Manufacturing method of magneto-optical master disk
SHARP KK31 citations92
US5490131AFeb 6, 1996
Optical disk
SHARP KK31 citations91
US5500850AMar 19, 1996
Optical disk with grooves and pits of different depths
SHARP KK13 citations73
US6067285AMay 23, 2000
Optical disc
SHARP KK8 citations72
US5331625AJul 19, 1994
Optical disc with antistatic coating containing tin oxide and phosphorous
SHARP KK9 citations72
US5587994ADec 24, 1996
Cartridge used for a disc-shaped recording medium
SHARP KK15 citations71
US5453975ASep 26, 1995
Optical disc with surface coating and manufacturing method therefor
SHARP KK3 citations62