发明授权
US5308235A Roll stamper and apparatus for forming a substrate for information
recording medium
失效
辊压模和用于形成信息记录介质用基板的装置
- 专利标题: Roll stamper and apparatus for forming a substrate for information recording medium
- 专利标题(中): 辊压模和用于形成信息记录介质用基板的装置
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申请号: US862523申请日: 1992-04-02
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公开(公告)号: US5308235A公开(公告)日: 1994-05-03
- 发明人: Hirofumi Kamitakahara , Yukitoshi Ohkubo , Naoki Kushida , Hitoshi Yoshino , Osamu Kanome , Tetsuya Sato , Hisanori Hayashi
- 申请人: Hirofumi Kamitakahara , Yukitoshi Ohkubo , Naoki Kushida , Hitoshi Yoshino , Osamu Kanome , Tetsuya Sato , Hisanori Hayashi
- 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: JPX3-097909 19910404; JPX3-147467 19910619
- 主分类号: B29C33/30
- IPC分类号: B29C33/30 ; B29C43/22 ; B29C59/00 ; B29D17/00 ; G11B7/26 ; G11B23/00 ; B29C43/46
摘要:
A roll stamper for forming an information recording medium substrate has a stamper member having a pattern corresponding to a pre-format for an information recording medium formed in its obverse surface, fixation members fixed to both end portions of a reverse surface of the stamper so as to be integral with the stamper member, and fit grooves formed in a circumferential surface of a specular roll base parallel to the axis of the specular roll base. The fixation members are fitted in the fit grooves, and the stamper member is fixed on the circumferential surface of the specular roll base. The roll stamper also includes a mechanism for applying a tensile force to the stamper member. This roll stamper is used in an apparatus having an extruder for melting and extruding a resin to form a resin sheet and a specular roll facing the roll stamper to continuously form the information recording medium substrate.