ENGINE STARTING DEVICE AND MANUFACTURING METHOD THEREFOR

An engine starting device (100) includes a board (6) on which a pin header (7) serving as an on-board component is mounted, a case member (4) that has a tubular shape and that is disposed so as to surround the board (6), and an antenna coil (2) that is disposed in the case member (4) and that is electrically connected to an antenna terminal (7A) partly embedded in the pin header (7) serving as an on-board component.