An electric motor in which magnetic steel sheets and stator end plates are laminated, wherein notches are formed in slot portions in the stator end plates to prevent part of conductive segments coming into direct contact with the stator end plates or the like, when cracks appear in the insulation paper when the conductive segments comprising flat copper wire forming a coil are inserted into the slot portions formed in a stator core and leg portions protruding from the slot portions are being folded.