发明名称 |
Magnetic disk cartridge |
摘要 |
A magnetic disk cartridge which is used with a high density recording magnetic disk and which provides good recording and reproducing properties. The magnetic disk cartridge has a flexible magnetic disk having a disk-like center core. The upper surface of the disk-like center core is centrally affixed to the magnetic disk. The magnetic disk is rotatably retained in a flat housing. The magnetic disk has a surface recording density of at least about 158.7 Mbit/cm2. The disk wobbling value of the magnetic disk measured at a radial position located 5 mm outward from the outer diameter of the center core of the magnetic disk while rotating the magnetic disk by means of a drive device via the center core is not more than 20 mum.
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申请公布号 |
US2004212928(A1) |
申请公布日期 |
2004.10.28 |
申请号 |
US20040845260 |
申请日期 |
2004.05.14 |
申请人 |
FUJI PHOTO FILM CO., LTD. |
发明人 |
IMAI FUMIHITO;SHIGA HIDEAKI;AOISHI HARUMI;ENDO YASUSHI |
分类号 |
G11B5/82;G11B23/00;G11B23/03;(IPC1-7):G11B23/03 |
主分类号 |
G11B5/82 |
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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