发明授权
- 专利标题: Two-layered optical recording medium
- 专利标题(中): 双层光记录介质
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申请号: US11883122申请日: 2006-03-16
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公开(公告)号: US08034426B2公开(公告)日: 2011-10-11
- 发明人: Masaru Shinkai , Michiaki Shinotsuka , Hiroyoshi Sekiguchi , Masaki Kato
- 申请人: Masaru Shinkai , Michiaki Shinotsuka , Hiroyoshi Sekiguchi , Masaki Kato
- 申请人地址: JP Tokyo
- 专利权人: Ricoh Company, Ltd.
- 当前专利权人: Ricoh Company, Ltd.
- 当前专利权人地址: JP Tokyo
- 代理机构: Cooper & Dunham LLP
- 优先权: JP2005-077886 20050317
- 国际申请: PCT/JP2006/305763 WO 20060316
- 国际公布: WO2006/098503 WO 20060921
- 主分类号: B32B3/02
- IPC分类号: B32B3/02
摘要:
A two-layered optical recording medium which includes a first substrate, a first information layer, a second information layer, and a second substrate formed in this order as viewed from the light beam irradiation side, the first information layer includes a first lower dielectric layer, a first recording layer, a first upper dielectric layer, a first reflective layer, and an inorganic dielectric layer formed in this order as viewed from the light beam irradiation side; the second information layer includes a second lower dielectric layer, a second recording layer, a second upper dielectric layer, and a second reflective layer formed in this order as viewed from the light beam irradiation side; and the first reflective layer is made of Cu with a content of 99.8% by mass to 95.0% by mass and one or more metals selected from Ta, Nb, Zr, Ni, Cr, Ge, Au, and Mo.
公开/授权文献
- US20080305293A1 Two-Layered Optical Recording Medium 公开/授权日:2008-12-11
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