Abstract: A motor comprising a stator having a plurality of magnetic poles disposed in a circumferential direction along an outer periphery thereof, a rotor disposed rotatably around the outer periphery of the stator, and a magnet disposed in a circumferential direction along an inner periphery of the rotor. The stator is formed by laminating sheet-like plates. A plurality of the sheet-like plates including an outermost layer of this laminated body comprises a flat portion substantially perpendicular to the magnet, and an extended portion bent to a direction substantially parallel to the magnet. A part of the sheet-like plate having the extended portion disposed to the outermost side is formed into a thickness smaller than thicknesses of the other parts.

Abstract: A motor comprises a stator having a plurality of magnetic poles disposed at first predetermined intervals along an outer periphery thereof, and a rotor having a permanent magnet with poles magnetized alternately to have different polarities at second predetermined intervals and disposed rotatably around the outer periphery of the stator with a predetermined gap. The magnetic poles of the stator has extended portions formed in a manner to extend from magnetic polar bases into a direction generally parallel to the permanent magnet, and the extended portions are formed of a high-permeability magnetic steel sheet with silicon content less than 3.0 wt-%.

Abstract: This motor includes a stator whereupon a plurality of magnetic poles are arranged at first prescribed intervals on the outer circumference section, and a rotor which is rotatively arranged on the outer circumference of the stator by having a prescribed space in between and has permanent magnets magnetized to different polarities at second prescribed intervals. The magnetic pole of the stator forms an extending section which extends from a magnetic pole base section in a direction parallel to the permanent magnet, and the extending length of the extending section in the direction parallel to the permanent magnet is same as that of the magnetic pole base section in the direction parallel to the permanent magnet or shorter.

Abstract: Of two bearings supporting a rotor of a circuit-integrated type core-equipped brushless motor, a part of an outer periphery of the bearing, which is disposed at a position near a stator core, is allowed to directly abut on an inner periphery of a hole formed in a center of the stator core, and therefore, reduction in thickness, reduction in diameter, space-saving and enhancement in output power can be realized. The stator core is fixed to the casing by causing projected parts provided at the housing to bite into second notched parts formed inside first notched parts formed at the stator core and crimping them, whereby the problem of a decrease in a winding space accompanying reduction in a diameter of the stator core is solved, and reduction in thickness, reduction in diameter, space-saving and enhancement in output power are achieved.

Abstract: A drive/control circuit integrated brushless motor is provided that has high rotating precision, satisfactory noise resistance and high output, and is suited to be smaller to save as much space as possible. The motor is a brushless motor provided with circuit integrated core with an FG pattern formed uniformly along the entire circumference by including a pattern system FG, and arranging a Hall element on a surface of a circuit substrate opposite the surface formed with the FG pattern and a noise cancel pattern.

Abstract: Of two bearings supporting a rotor of a circuit-integrated type core-equipped brushless motor, a part of an outer periphery of the bearing, which is disposed at a position near a stator core, is allowed to directly abut on an inner periphery of a hole formed in a center of the stator core, and therefore, reduction in thickness, reduction in diameter, space-saving and enhancement in output power can be realized. The stator core is fixed to the casing by causing projected parts provided at the housing to bite into second notched parts formed inside first notched parts formed at the stator core and crimping them, whereby the problem of a decrease in a winding space accompanying reduction in a diameter of the stator core is solved, and reduction in thickness, reduction in diameter, space-saving and enhancement in output power are achieved.

Abstract: A drive/control circuit integrated brushless motor is provided that has high rotating precision, satisfactory noise resistance and high output, and is suited to be smaller to save as much space as possible. The motor is a brushless motor provided with circuit integrated core with an FG pattern formed uniformly along the entire circumference by including a pattern system FG, and arranging a Hall element on a surface of a circuit substrate opposite the surface formed with the FG pattern and a noise cancel pattern.