| 摘要 |
PURPOSE:To realize a storage device free of information volatilization at any position on it by using a contracting device having prescribed chevron patterns in a prescribed state. CONSTITUTION:Chevron pattern 211 of optional bit 21 and chevron pattern 221 of following bit 22 are arranged having parallel overlap part 32 across transfer-directional gap part 31. A bubble contracting device like this is used to secure the nonvolatility of the storage device. |
