Inventor
WATADA ATSUYUKI
JP18 patents
Patents
18 patentsUS6975663B2Dec 13, 2005
Surface-emission laser diode operable in the wavelength band of 1.1-7μm and optical telecommunication system using such a laser diode
RICOH KK88 citations97
US7245647B2Jul 17, 2007
Surface-emission laser diode operable in the wavelength band of 1.1-1.7mum and optical telecommunication system using such a laser diode
RICOH KK28 citations92
US5459701AOct 17, 1995
Magneto-optical recording method
RICOH KK29 citations92
US5430696AJul 4, 1995
Magneto-optical recording medium
RICOH KK22 citations92
US5420833AMay 30, 1995
Magneto-optical recording medium having first and second magnetic layers
RICOH KK24 citations92
US4690861ASep 1, 1987
Magneto optical recording medium
RICOH KK27 citations92
US6933032B2Aug 23, 2005
Write-once-read-many optical recording media and process for recording and reproducing information on the media
RICOH KK24 citations90
US7590159B2Sep 15, 2009
Surface-emission laser diode operable in the wavelength band of 1.1-1.7 micrometers and optical telecommunication system using such a laser diode
RICOH KK9 citations83
US5736265AApr 7, 1998
Magneto-optical recording medium and recording method using the same
RICOH KK10 citations74
US5487046AJan 23, 1996
Magneto-optical recording medium having two magnetic layers with the same curie temperature
RICOH KK10 citations74
US5337293AAug 9, 1994
Magneto-optical recording method and recording medium for use in the same
RICOH KK6 citations74
US5323366AJun 21, 1994
Magneto-optical recording method with switching and maintaining perpendicular magnetization light beam application modes
RICOH KK11 citations74
US4797331AJan 10, 1989
Magneto-optical recording material
RICOH KK13 citations73
US4670322AJun 2, 1987
Metal oxide magnetic substance and a magnetic film consisting thereof and their uses
RICOH KK11 citations73
US4670323AJun 2, 1987
Magneto-optic recording medium having a metal oxide recording layer
RICOH KK12 citations73
US7413788B2Aug 19, 2008
Write-once-read-many optical recording media and process for recording and reproducing information on the media
RICOH KK7 citations71
US4788095ANov 29, 1988
Metal oxide magnetic substance and a magnetic film consisting thereof and their uses
RICOH KK8 citations69
US5369629ANov 29, 1994
Magneto-optical recording method and magneto-optical recording medium
RICOH KK4 citations63