发明授权
- 专利标题： Method for molding of substrate for information recording medium and method for preparing substrate for information recording medium
- 专利标题（中）： 信息记录介质用基板的成型方法及信息记录介质用基板的制造方法
-
申请号： US622151申请日： 1990-12-03
-
公开(公告)号： US5174937A公开(公告)日： 1992-12-29
- 发明人: Tomoyuki Tamura , Mizuho Hiraoka , Hiroyuki Imataki , Tetsuya Sato
- 申请人： Tomoyuki Tamura , Mizuho Hiraoka , Hiroyuki Imataki , Tetsuya Sato
- 申请人地址： JPX Tokyo
- 专利权人： Canon Kabushiki Kaisha
- 当前专利权人： Canon Kabushiki Kaisha
- 当前专利权人地址： JPX Tokyo
- 优先权： JPX62-222816 19870905; JPX62-222020 19870907; JPX62-222021 19870907; JPX62-324322 19871221; JPX62-329677 19871228; JPX62-329678 19871228
- 主分类号： B29C33/30
- IPC分类号： B29C33/30 ; B29C33/38 ; B29C35/08 ; B29C39/02 ; B29C39/26 ; B29D17/00 ; G11B7/26
摘要：
A method for preparing a substrate for an information recording medium, which comprises injecting a liquid resin into a mold for cast molding of a substrate for information recording medium having a plurality of units of mold for cast molding having an uneven preformat pattern on the surface arranged therein and solidifying the resin, and a mold for molding of the substrate.