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1.发明公开WRITE-ONCE-READ-MANY OPTICAL RECORDING MEDIUM AND SPUTTERING TARGET THEREOF 有权OPTICAL WORM记录介质（WORM - 写一次读多次）和它们的溅射靶
公开(公告)号：EP1704058A4
公开(公告)日：2007-03-14
申请号：EP05776963
申请日：2005-08-30
申请人： RICOH KK
CPC分类号： G11B7/24 , C23C14/08 , C23C14/3414 , G11B7/243 , G11B7/266 , G11B2007/24314 , G11B2007/2432 , Y02T50/67
摘要： A write-once-read-many optical recording medium enabling excellent recording and reproducing properties at a wavelength of blue-laser wavelengths or shorter, i.e. 500 nm or less, particularly at wavelengths of near 405 nm and high density recording. To this end, a write-once-read-many optical recording medium of the invention comprises a recording layer using a material represented by BiOx (0
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2.发明公开WRITE-ONCE-READ-MANY OPTICAL RECORDING MEDIUM AND RECORDING METHOD THEREFOR 审中-公开一次写入多次读取光学记录介质和其记录方法
公开(公告)号：EP2057628A4
公开(公告)日：2010-05-05
申请号：EP07806805
申请日：2007-08-30
申请人： RICOH KK
发明人： FUJIWARA MASAYUKI , SASA NOBORU , HAYASHI YOSHITAKA , FUJII TOSHISHIGE , YAMADA KATSUYUKI , KATO MASAKI , NARUMI SHINYA , OBA HIDEAKI , SEKIGUCHI HIROYOSHI , SASAKI TOSHIHIDE
IPC分类号： G11B7/0045 , G11B7/007 , G11B7/125 , G11B7/24 , G11B7/243
CPC分类号： G11B7/00456 , G11B7/246 , G11B7/2463 , G11B7/2585
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公开(公告)号：EP2054889A4
公开(公告)日：2009-11-18
申请号：EP07791883
申请日：2007-07-27
申请人： RICOH KK
发明人： NARUMI SHINYA , YAMADA KATSUYUKI , SASA NOBORU , HAYASHI YOSHITAKA , FUJII TOSHISHIGE , FUJIWARA MASAYUKI , KATO MASAKI , KIBE TAKESHI , KOHDA TAKUYA , MIURA HIROSHI
IPC分类号： G11B7/24 , G11B7/24079 , G11B7/243 , G11B7/2433 , G11B7/2437 , G11B7/252 , G11B7/258 , G11B7/2585 , G11B7/259
CPC分类号： G11B7/2433 , G11B7/0062 , G11B7/24079 , G11B7/2437 , G11B7/2585 , G11B7/259 , G11B2007/24306 , G11B2007/2431 , G11B2007/24314 , G11B2007/2432
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公开(公告)号：EP1824687A4
公开(公告)日：2008-11-19
申请号：EP05816657
申请日：2005-12-13
申请人： RICOH KK
IPC分类号： G11B7/24
CPC分类号： G11B7/257 , G11B7/24067 , G11B7/24088 , G11B7/243 , G11B7/259 , G11B2007/24314 , G11B2007/2432 , Y10T428/21
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