发明申请
- 专利标题： Write-once information recording medium and coloring matter material therefor
- 专利标题（中）： 一次写入信息记录介质和色素材料
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申请号： US11089037申请日： 2005-03-25
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公开(公告)号： US20050219997A1公开(公告)日： 2005-10-06
- 发明人: Seiji Morita , Koji Takazawa , Naoki Morishita , Naomasa Nakamura
- 申请人： Seiji Morita , Koji Takazawa , Naoki Morishita , Naomasa Nakamura
- 申请人地址： JP Tokyo
- 专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人： KABUSHIKI KAISHA TOSHIBA
- 当前专利权人地址： JP Tokyo
- 优先权： JP2004-110384 20040402; JP2005-079627 20050318
- 主分类号： C09B23/14
- IPC分类号： C09B23/14 ; C09B69/06 ; G11B7/246 ; G11B7/2467 ; G11B7/2472 ; G11B7/2495 ; G11B7/253 ; G11B7/2534 ; G11B7/258 ; G11B7/259 ; G11B7/24
摘要：
A write-once information recording medium comprises a transparent resin substrate having a concentrically or spirally shaped groove and a land formed thereon, and a recording firm formed on the groove and the land of the transparent resin substrate, a recording mark being formed on the medium by emission of a short wavelength laser light, the recording medium having an L to H feature in which a light reflectivity of the recording mark portion formed by the emission of the short wavelength laser light is higher than a light reflectivity obtained before the emission of the short wavelength laser light.
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