| 摘要 |
PROBLEM TO BE SOLVED: To provide a denture attachment, having stable non-magnetic area, excellent suction force, and high productivity. SOLUTION: This denture attachment is formed of a magnet body 11, a yoke 12 having a recessed part 125 for storing the magnet body 11 and formed of a soft magnetic material, and a seal plate 2 disposed in an opening part 19 of the recessed part of the yoke to seal the magnet body 11. The seal plate 2 is composed of a shield plate 21 made of a soft magnetic material and a non-magnetic ring part 22 made of a non-magnetic material firmly and closely bonded to the outer periphery of the shield plate 21. The shield plate 21, the non-magnetic ring part 22 and the yoke 12 are integrally bonded to each other on the surface sides thereof. COPYRIGHT: (C)2004,JPO
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