| 摘要 |
PROBLEM TO BE SOLVED: To provide an air-core coil in which the winding start wire of a coil does not creep on the end face of the coil but is derived to the outside. SOLUTION: In the air-core coil provided with lead trenches, trench shaped depressions are disposed on the end surface of the air-core coil wound with self-welding wires to cross the coil from the inside to the outside, and the winding start wire inside the coil is derived to the outside through this trench. COPYRIGHT: (C)2006,JPO&NCIPI
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