专利内容由知识产权出版社提供
专利名称：Optical disc and manufacturing method for
the same
发明人：Masahiko Tsukuda,Shinya Abe,Shuji Sato申请号：US11000418申请日：20041201公开号：US07068590B2公开日：20060627
专利附图：
摘要：The width and/or depth of guide grooves on the disc substrate surface arechanged in each data recording layer and the guide groove depth of the recording filmlayer is appropriately shaped in each data recording layer to provide a high density, high
recording capacity optical disc. The optical disc has plural substrate layers each havingplural guide grooves; plural data recording layers laminated on the substrate layers,each of the plural data recording layers having a recording film for recording data overthe guide grooves; and an intermediate layer between the plural data recording layers.The guide groove width is different on each substrate layer. The guide grooves of thedata recording layers formed according to the guide grooves of the substrate layer havethe same pitch in each data recording layer.
申请人：Masahiko Tsukuda,Shinya Abe,Shuji Sato
地址：Moriguchi JP,Kadoma JP,Neyagawa JP
国籍：JP,JP,JP
代理机构：Wenderoth, Lind & Ponack, L.L.P.
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