Abstract: The present invention provides a tablet-inspecting device in which the control unit gives, to the continuous drug packet-driving unit, operation instructions to move the continuous drug packet from an upstream side to a downstream side of the conveyor path, and reciprocating operation instructions to alternately move the continuous drug packet to the upstream side and the downstream side of the conveyor path, the control unit gives, to the rod control unit, rod unit pressing operation instructions to press the rod unit against the side portion of the drug packet, and when the control unit gives the reciprocating operation instructions, the rod unit pressing operation instructions has been given, it is possible to enhance determining precision of the number of tablets or the kinds of tablet, and to stably inspect drugs.

Abstract: The present invention provides a tablet-inspecting device in which the control unit gives, to the continuous drug packet-driving unit, operation instructions to move the continuous drug packet from an upstream side to a downstream side of the conveyor path, and reciprocating operation instructions to alternately move the continuous drug packet to the upstream side and the downstream side of the conveyor path, the control unit gives, to the rod control unit, rod unit pressing operation instructions to press the rod unit against the side portion of the drug packet, and when the control unit gives the reciprocating operation instructions, the rod unit pressing operation instructions has been given, it is possible to enhance determining precision of the number of tablets or the kinds of tablet, and to stably inspect drugs.

Abstract: With a spindle motor, a stator core comprises a plurality of salient pole portions that are formed in a radial shape, are wound with a stator coil, and are disposed at a uniform angle except for a non-equiangular pitch region, a circular outer peripheral yoke formed so as to be continuous with the outer peripheral side of the salient pole portions, a cut-out which is formed by cutting out part of the outer peripheral yoke in an approximate sector-shape except in the non-equiangular pitch region of the salient pole portions, and a compensating pole plate which is provided in the cut-out along the ends on the inner peripheral side of the non-equiangular pitch region where the salient pole portions are formed.

Abstract: An object of the present invention is to provide a rotor magnet that is capable of adjusting attraction of magnet that is mounted in a spindle motor, a spindle motor including the same, a recording and reproducing apparatus, and a jig for manufacturing the same, with a simple configuration. A rotor magnet is an approximately annular member that is attached to a rotor hub rotating around a shaft forming a part of a spindle motor. The rotor magnet is magnetized such that magnetization properties of axially top and bottom surfaces of the rotor magnet are different from each other.

Abstract: With a spindle motor 20, a stator core 8 comprises a plurality of salient pole portions 51 that are formed in a radial shape, are wound with a stator coil 9, and are disposed at a uniform angle except for a non-equiangular pitch region, an circular outer peripheral yoke 52 formed so as to be continuous with the outer peripheral side of the salient pole portions 51, a cut-out 55 which is formed by cutting out part of the outer peripheral yoke 52 in an approximate sector-shape except in the non-equiangular pitch region of the salient pole portions 51, and a compensating pole plate 11 which is provided in the cut-out 55 along the ends on the inner peripheral side of the non-equiangular pitch region where the salient pole portions 51 are formed.

Abstract: With a spindle motor 20, a stator core 8 comprises a plurality of salient pole components 51 that are formed in a radial shape, are wound with a stator coil 9, and are disposed at a uniform angle except for a non-equiangular pitch portion, an circular outer peripheral yoke 52 formed so as to be continuous with the outer peripheral side of the salient pole components 51, a cut-out 55 which is formed by cutting out part of the outer peripheral yoke 52 in an approximate sector-shape except in the non-equiangular pitch portion of the salient pole components 51, and a compensating pole plate 11 which is provided in the cut-out 55 along the ends on the inner peripheral side of the non-equiangular pitch portion where the salient pole components 51 are formed.

Abstract: An object of the present invention is to provide a rotor magnet that is capable of adjusting attraction of magnet that is mounted in a spindle motor, a spindle motor including the same, a recording and reproducing apparatus, and a jig for manufacturing the same, with a simple configuration. A rotor magnet 7 is an approximately annular member that is attached to a rotor hub 6 rotating around a shaft 1 forming a part of a spindle motor 20. The rotor magnet 7 is magnetized such that magnetization properties of axially top and bottom surfaces 7b and 7c of the rotor magnet 7 are different from each other.

Abstract: With a spindle motor 20, a stator core 8 comprises a plurality of salient pole components 51 that are formed in a radial shape, are wound with a stator coil 9, and are disposed at a uniform angle except for a non-equiangular pitch portion, an circular outer peripheral yoke 52 formed so as to be continuous with the outer peripheral side of the salient pole components 51, a cut-out 55 which is formed by cutting out part of the outer peripheral yoke 52 in an approximate sector-shape except in the non-equiangular pitch portion of the salient pole components 51, and a compensating pole plate 11 which is provided in the cut-out 55 along the ends on the inner peripheral side of the non-equiangular pitch portion where the salient pole components 51 are formed.

Abstract: The present invention provides a small and thin spindle motor in which no uneven pressure is applied to a recording medium when the recording medium is fixed to a hub, a disc driving apparatus having the spindle motor, and a production method thereof. The spindle motor comprises: a sleeve which is supported by a fixed shaft and rotates around a predetermined axis; and a hub provided on an outer peripheral portion of the sleeve, which includes: a tubular portion to be inserted into a central hole of a recording medium having a disc shape, which is coaxial with the sleeve and has a male thread formed on an outer peripheral surface; and a first receiving surface which is connected to the tubular portion and which holds the recording medium to the axis.