发明名称 |
Optical disk having a projection with lateral inclined surface |
摘要 |
The present invention is directed to an optical disk having a projection that prevents full contact of the upper surface of the disk when engaging a supporting surface. The optical disk includes a projection formed in a central portion of the optical disk that abuts or is near the upper surface of a protecting layer. |
申请公布号 |
US8151289(B2) |
申请公布日期 |
2012.04.03 |
申请号 |
US20070700904 |
申请日期 |
2007.02.01 |
申请人 |
LEE SEOUNG WON;SEO HUN;LEE JUN SEOK;KIM JIN HONG;PARK KYUNG CHAN;LG ELECTRONICS INC. |
发明人 |
LEE SEOUNG WON;SEO HUN;LEE JUN SEOK;KIM JIN HONG;PARK KYUNG CHAN |
分类号 |
G11B7/09;G11B7/24;G11B7/26;G11B23/00 |
主分类号 |
G11B7/09 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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