发明授权
- 专利标题： Disc-like information recording medium, stamper, stamper configuring apparatus, disc master and hub mounting apparatus
- 专利标题（中）： 盘状信息记录介质，压模，压模配置装置，盘主和轮毂安装装置
-
申请号： US09920852申请日： 2001-08-03
-
公开(公告)号： US06772431B2公开(公告)日： 2004-08-03
- 发明人: Noboru Iwata , Junji Hirokane
- 申请人： Noboru Iwata , Junji Hirokane
- 优先权： JP2000-237266 20000804
- 主分类号： G11B700
- IPC分类号： G11B700
摘要：
A disc recording element is provided with a disc substrate having a hole at its center, a circular information recording area on its surface that is concentric with the hole. A hub is fitted to the hole. The disc substrate has a relief portion thereon for position alignment of the hub.
公开/授权文献
信息查询
