发明名称 |
Process of and apparatus for preparing optical recording medium substrates |
摘要 |
A process for preparing a substrate sheet for optical recording mediums includes the steps of extruding a molten resin to form a resin sheet and bringing the resin sheet into pressure between a preformat roll and a roll disposed opposingly to said preformat roll to transfer a preformat pattern to the surface of the resin sheet, wherein the roll disposed opposingly to the preformat roll includes a roll whose surface is covered with an elastomeric resin.
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申请公布号 |
US5147592(A) |
申请公布日期 |
1992.09.15 |
申请号 |
US19900580218 |
申请日期 |
1990.09.10 |
申请人 |
CANON KABUSHIKI KAISHA |
发明人 |
SATO, TETSUYA;KANOME, OSAMU;YOSHINO, HITOSHI;KAMITAKAHARA, HIROFUMI;HAYASHI, HISANORI;SANTOH, TSUYOSHI |
分类号 |
B29C59/04;B29C43/22;B29C47/00;B29C69/02;B29D17/00;B29K69/00;B29L17/00 |
主分类号 |
B29C59/04 |
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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