发明名称 FLEXIBLE OPTICAL DISK AND ITS MANUFACTURING METHOD
摘要 <P>PROBLEM TO BE SOLVED: To provide the structure of a flexible optical disk in which a recording film is deposited by a vacuum process, capable of suppressing the temperature increase of a film surface as much as possible while securing necessary rigidity during recording film deposition, and its manufacturing method. <P>SOLUTION: The flexible optical disk in which a recording film is deposited by a vacuum process is constructed in such a manner that two films different from each other in thickness are stuck together, one film forms a pregroove and a pit to form a recording film, and the other film is stuck to the recording surface side of the film forming the recording film to adjust rigidity. <P>COPYRIGHT: (C)2004,JPO
申请公布号 JP2004103090(A) 申请公布日期 2004.04.02
申请号 JP20020261923 申请日期 2002.09.06
申请人 RICOH CO LTD 发明人 ONAKI NOBUAKI;AMAN YASUTOMO;MURATA SHIYOUZOU
分类号 G11B7/24;G11B7/26 主分类号 G11B7/24
代理机构 代理人
主权项
地址