Abstract: A spray distribution measuring device comprises a chamber 4 having a spray nozzle 1 as a measurement object at the top; a saucer 3 arranged below the spray nozzle within the chamber 4 and partitioned into a plurality of regions each having a prescribed area; measuring tubes 6 each installed substantially vertically from each region of the saucer 3 and having a prescribed sectional area, the upper end of each of which opens into the bottom of each region of the saucer; pressure sensors 7 each installed at the lower end of each of the measuring tubes to measure the head pressure of each measuring tube; and a controller 10 for computing a difference between the pressure applied to the pressure sensor and an initial pressure, and measures the spray distribution on the basis of a difference between the head pressure of the a test solution accumulated in each measuring tube by spraying and the initial pressure before the spraying.

Abstract: A semiconductor device includes a semiconductor substrate having a surface; a plurality of spaced apart electrically insulating films disposed directly on the surface; a plurality of spaced apart electrically conducting word lines, at least one of the word lines being disposed on one of the insulating films and at least one of the word lines being disposed directly on the surface, the word lines being formed from a continuous layer of an electrically conducting material in a photolithographic process employing a photoresist film deposited on the continuous layer of electrically conducting material, the photoresist film being exposed in a single step to define masks for each of the word lines in a projection exposure apparatus including a light source for producing light; a condenser lens for condensing the light from the light source onto a mask including a circuit pattern; a projection lens having a pupil with a diameter, the projection lens for condensing the light that has passed through the mask onto a su

Abstract: An armature for a d. c. motor comprises a shaft, a commutator, a coil and an armature core having a plurality of slots at its circumference to receive the coil. The opening portion of the slots is made smaller than the diameter of a wire constituting the coil, and a groove and a coil constraining portion are formed in a throat portion between the opening portion and a coil receiving portion formed in the slot.