Techniques are disclosed for translating five-bit source vectors into six-bit coded vectors. A tongue plate is provided on its one surface with hook-like projections for coupling a lap belt anchor to the tongue plate, and stoppers for preventing the lap belt anchor engaged with the projections from coming off the projections. A movable iron 9a presses a lower surface of the extremity end 1b of the sleeve 1a inserted into the lower iron 10 at the time of pressing with the upper iron 10. The voice coil bobbin is received in the magnetic gap. A lens forming composition may include an aromatic containing polyether polyethylenic functional monomer, a photoinitiator, and a coinitiator. The memory devices include a semiconductor substrate and an adjacent gate electrode.