Abstract: A cylindrical multipole magnet having an inner peripheral surface and an outer peripheral surface and having N- and S-poles alternately and continuously in a circumferential direction. A surface magnetic flux density of the outer peripheral surface is at least 0.2 times a surface magnetic flux density of the inner peripheral surface. The cylindrical multipole magnet contains an anisotropic rare earth magnetic powder and a resin, with a filling ratio of the anisotropic rare earth magnetic powder being at least 50 vol % but not higher than 65 vol % with respect to a total volume of the anisotropic rare earth magnetic powder and the resin.

Abstract: In surveillance camera system (10), face detection is performed with Cam-A or Cam-F and in a case where there is a match with the face image of a specific person as a result of collation of face images, appearance feature information is transmitted from tracking client (30) to other Cam-B to Cam-E grouped in association with Cam-A or Cam-F. Upon detecting the appearance feature information, the other Cam-B to Cam-E transmit the person discovery information to a tracking client (30).

Abstract: In surveillance camera system 10, face detection is performed with Cam-A or Cam-F and in a case where there is a match with the face image of a specific person as a result of collation of face images, appearance feature information is transmitted from tracking client (30) to other Cam-B to Cam-E grouped in association with Cam-A or Cam-F. Upon detecting the appearance feature information, the other Cam-B to Cam-E transmit the person discovery information to a tracking client (30).

Abstract: In a method for manufacturing a cylindrical bonded magnet, a molding space having a cylindrical shape is filled with a bonded magnet composition containing a magnetic material and a resin. The magnetic material disposed in the molding space is magnetically oriented using an orientation magnet. The orientation magnet includes a first permanent magnet and a second permanent magnet. The first and second permanent magnets are disposed such that same poles are opposite each other in the axial direction.

Abstract: A cylindrical bonded magnet is provided which is multipolar-magnetized in the axial direction and can be produced with high productivity. The cylindrical bonded magnet includes magnetic powder and resin. The cylindrical bond magnet is an integrally formed member. The cylindrical bond magnet is magnetized so that a plurality of N and S poles are alternately provided in the axial direction. In the cylindrical bonded magnet, a totally even number of at least four N and S poles are alternately provided. The surface magnetic flux density distribution has a substantially sinusoidal wave with the both ends of the sinusoidal wave corresponding to nodes when the surface magnetic flux of the cylindrical bonded magnet is measured as viewed from the side surface of the cylindrical bond magnet along the axial direction.

Abstract: A cylindrical bonded magnet is provided which is multipolar-magnetized in the axial direction and can be produced with high productivity. The cylindrical bonded magnet includes magnetic powder and resin. The cylindrical bond magnet is an integrally formed member. The cylindrical bond magnet is magnetized so that a plurality of N and S poles are alternately provided in the axial direction. In the cylindrical bonded magnet, a totally even number of at least four N and S poles are alternately provided. The surface magnetic flux density distribution has a substantially sinusoidal wave with the both ends of the sinusoidal wave corresponding to nodes when the surface magnetic flux of the cylindrical bonded magnet is measured as viewed from the side surface of the cylindrical bond magnet along the axial direction.

Abstract: The object of the present invention is to provide a low-noise and low-vibration brushless motor and an electric applicance and a vehicle which have the brushless motor and increase in quietness, by optimizing a ratio of the number of poles on a rotor to the number of slots on a stator, the ratio being suitable for a driving circuit. The present invention is a brushless motor constituted by ten-pole rotor (1), a stator (3) having (12) slots (2) and making three-phase connection to the slots (2), and a driving circuit (5) for applying three-phase full-wave current to the stator (3). Further, the conduction width of the driving circuit is set at an electrical angle of 135 to 180°.

Abstract: The object of the present invention is to provide a low-noise and low-vibration brushless motor and an electric applicance and a vehicle which have the brushless motor and increase in quietness, by optimizing a ratio of the number of poles on a rotor to the number of slots on a stator, the ratio being suitable for a driving circuit. The present invention is a brushless motor constituted by ten-pole rotor (1), a stator (3) having (12) slots (2) and making three-phase connection to the slots (2), and a driving circuit (5) for applying three-phase full-wave current to the stator (3). Further, the conduction width of the driving circuit is set at an electrical angle of 135 to 180°.

Abstract: With a view to reduce vibrations generated by a motor and improve resistance to heat, reliability and vibration isolation properties without increasing the cost or the number of manufacturing steps in a rotor for a permanent-magnet motor, a rotor core is formed of an outer peripheral portion by which the permanent magnet is fixed, and a central portion by which a shaft is fixed, a clearance is provided between the outer peripheral portion and the central portion, and the outer peripheral portion is connected to the central portion by means of a plurality of fastening members. Thus, a rotor having excellent vibration isolation properties can be obtained. Since the rotor core is formed of laminated iron plates on which the outer peripheral portion, the central portion and the fastening members are all formed as one piece, resistance to heat, reliability and the vibration isolation properties can be enhanced without increasing the cost or the number of manufacturing steps.

Abstract: A drive apparatus for use in a brushless motor with a rotor and a drive coil assembly. The drive apparatus comprises an energization-state instruction circuit for generating an energization-state instruction signal instructing an energization state of the drive coil assembly on the basis of the position detection signal indicative of a position of the rotor and an energization switching circuit for outputting an energization switching signal to successively switch the energization state of the drive coil assembly in accordance with the energization-state instruction signal and a duty control signal. A power circuit is coupled to a direct-current voltage source and is responsive to the energization switching signal so as to energize the drive coil assembly by means of a direct-current voltage from the direct-current voltage source in accordance with the energization switching signal therefrom.