Original document(16 pages)  中文版
    A sputtering target includes a plurality of compositional regions and is a disk type, in which each of the regions contains independent component where each compositional region forms the circumferential side of the disk and when the circle is through at least two compositional regions, the average compositions of the circumferential side of the disk are different according to the different semidiameter of the circle.
Application Number
申请号
200610110114 Application Date
申请日
2006.08.08
Title 名称 Sputtering target
Publication Number
公开号
1912176 Publication Date
公开日
2007.02.14
Approval Pub. Date Granted Pub. Date
International Classification 分类号 C23C14/34;C23C14/06
Applicant(s) Name
申请人
Ricoh Co., Ltd.
Address 地址
Inventor(s) Name 发明人 Hibino Eiko;Ito Kazunori;Takada Mimikiko;Okura Hiroko;Deguchi Koji
Attorney & Agent 代理人 song li jia jinghuan
More information 更  多  信  息


 Related patents information
Recording method for phase change type optical recording medium
Optical recording method
Optical recording medium
Optical recording medium
Phase-change optical recording medium, optical recording method, and optical recording apparatus
Optical recording medium and process for producing the same, sputtering target, using process of optical recording medium, and optical recording apparatus
Optical recording medium, multi-layered optical recording medium, and optical recording method and recording apparatus using the same
Phase-change type optical recording medium and reproduction method and apparatus for such a recording medium
Google
Note:All patent data come from State Intellectual Property Office of the People's Republic of China. If there were discrepancies between here and the State Intellectual Property office, the later is more accurate. The patent data is only for public exchange and learning purposes. We are not responsible for the adverse consequences with unverified use of the data.