| 摘要 |
PROBLEM TO BE SOLVED: To provide a magnetic field generating apparatus capable of suppressing running cost using a simple configuration and obtaining a desired degree of orientation of magnetic powder on a base body. SOLUTION: The magnetic field generating apparatus 10 comprises a pair of permanent magnets 12a and 12b disposed, sandwiching a conveyance path 16 for a magnetic recording medium 14. A magnetization direction of the pair of permanent magnets 12a and 12b is in parallel to a conveyance direction of the magnetic recording medium 14, and the pair of permanent magnets 12a and 12b are disposed with the same poles thereof facing each other. Yokes 22a and 22b are provided on side surfaces facing an exit of the conveyance path 16 of side surfaces of the pair of permanent magnets 12a and 12b. The yokes 22a and 22b have sloping surfaces 26a and 26b which make wide a space in the vicinity of the exit of the conveyance path 16, and collar portions 30a and 30b at rear end portions of surfaces opposite to the conveyance path 16, respectively. COPYRIGHT: (C)2006,JPO&NCIPI
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