| 摘要 |
PROBLEM TO BE SOLVED: To provide a disk cartridge for improving durability in a shutter member as compared with before. SOLUTION: Each of a pair of shutter members 6 is made of an injection molding body, and has a plurality of gate marks resulting from injection molding. One gate mark G1 in the gate marks, and another gate mark G2 are formed at a peripheral section 55 and a blade section 56, respectively. COPYRIGHT: (C)2007,JPO&INPIT
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