发明名称 |
MAGNETIC MEDIUM |
摘要 |
Magnetic recording medium having a magnetic layer in which magnetic powder of the magnetic layer includes iron oxide magnetic powder with more than 30 m2/g specific surface area measured by BET method, chromium dioxide (CrO2) magnetic powder with more than 30 m2/g specific surface area measured by BET method, and the rate of the chromium dioxide powder is within a range more than 3% to less than 20% by weight in the total amount of the magnetic powder in the magnetic powder. Said magnetic layer further includes carbon black. |
申请公布号 |
KR930000072(B1) |
申请公布日期 |
1993.01.08 |
申请号 |
KR19850003865 |
申请日期 |
1985.06.03 |
申请人 |
HITACHI MAXCELL CO., LTD. |
发明人 |
MORIOKA, AKIRA;MACHIURA, TAKESHI;TAKAHIRA, YOSHIKOGI |
分类号 |
C09C1/48;C09D5/23;C09D7/12;G11B5/706;G11B5/708;G11B5/714;(IPC1-7):G11B5/62 |
主分类号 |
C09C1/48 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|