| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To prevent contact with a coil body without enlarging the heat release value of the coil body. <P>SOLUTION: A unit has at least a pair of magnets 1 and 1 which are counterposed apart. This is equipped with a driver 7 which displaces the relative position of the magnets 1 and 1 in a pair. <P>COPYRIGHT: (C)2004,JPO</p> |
