| 摘要 |
PROBLEM TO BE SOLVED: To reduce the slide resistance when a rotary shutter is opened and closed in a magnetic disk cartridge provided with the rotary shutter that opens and closes an opening for head access formed in a flat housing that houses a magnetic disk inside in interlock with a loading/unloading operation with respect to a drive device. SOLUTION: A plurality of small hemispherical projections P at least in one sliding part of the housing and the rotary shutter 7. COPYRIGHT: (C)2005,JPO&NCIPI
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