发明专利
JP2002074752A INFORMATION RECORDING MEDIUM, BASE MATERIAL FOR DEPOSITING THIN FILM AND METHOD FOR PRODUCING THE SAME
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基本信息:
- 专利标题： INFORMATION RECORDING MEDIUM, BASE MATERIAL FOR DEPOSITING THIN FILM AND METHOD FOR PRODUCING THE SAME
- 申请号：JP2000266144 申请日：2000-09-01
- 公开(公告)号：JP2002074752A 公开(公告)日：2002-03-15
- 发明人： TSUCHIDA TAKAYUKI , IKEDA JIRO
- 申请人： NIPPON LIGHT METAL CO , SONY MUSIC ENTERTAINMENT INC
- 专利权人： NIPPON LIGHT METAL CO,SONY MUSIC ENTERTAINMENT INC
- 当前专利权人： NIPPON LIGHT METAL CO,SONY MUSIC ENTERTAINMENT INC
- 优先权： JP2000266144 2000-09-01
- 主分类号： B22D11/00
- IPC分类号： B22D11/00 ; B22D11/22 ; C22C21/02 ; G11B7/24 ; G11B7/258 ; G11B7/26
摘要：
PROBLEM TO BE SOLVED: To provide an information recording medium with a reflecting metallic layer excellent in long-term reliability, a base material for depositing a thin film suitable for use in the manufacture of the information recording medium and a method for producing the base material. SOLUTION: In the information recording media 10, 20, 30, 40, signal layers 15, 25, 35a, 35b, 45a, 45b with formed reflecting metallic layers 12, 22, 32a, 32b, 42a, 42b are irradiated with light to read out signals. Each of the reflecting metallic layers 12, 22, 32a, 32b, 42a, 42b comprises an aluminum alloy whose composition consists of, by weight, 1.0-10% Si, 0.05-0.25% Fe, 0.8-1.2% Mn, 0.2-0.3% Ti and the balance Al with inevitable impurities.
公开/授权文献:
信息查询:
EspacenetIPC结构图谱:
| B | 作业；运输 |
| --B22 | 铸造；粉末冶金 |
| ----B22D | 金属铸造；用相同工艺或设备的其他物质的铸造 |
| ------B22D11/00 | 金属连续铸造，即长度不限的铸造 |