发明名称 OPTICAL DISK AND MOLDING DIE APPARATUS
摘要 A stamper is mounted to a surface of at least one of a stationary-side die and a movable-side die. A transfer surface of the stamper is positioned substantially flush with a first surface of an inner peripheral holding member for holding the stamper near an inner periphery thereof which first surface is positioned adjacent to the transfer surface of the stamper. A first distal end of the inner peripheral holding member, which is positioned to face the cavity, and a second distal end of a die member, which is positioned to face the cavity, the die member being disposed adjacent to the inner peripheral holding member, are both projected more into the cavity than the transfer surface of the stamper. A molding burr can be suppressed from projecting upward from the vicinity of an inner peripheral edge of the substrate surface substantially flush with the transfer portion.
申请公布号 US2009010147(A1) 申请公布日期 2009.01.08
申请号 US20080147360 申请日期 2008.06.26
申请人 TAIYO YUDEN CO., LTD. 发明人 HAGIWARA MOTOMITSU;OTSU TAKESHI;MIYATA AKIMASA;AIHARA KUNIYUKI
分类号 G11B7/00;B05D3/00;B29C59/02 主分类号 G11B7/00
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