| SANYO SEIMITSU CO., LTD. Patent applications |
| Patent application number | Title | Published |
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| 20110266901 | FLAT TYPE VIBRATION MOTOR - A flat type vibration motor realizing strong fastening of a rotor frame and an eccentric weight without welding, that is, a flat type vibration motor provided with a cover case having a tubular part with an opening closed by a stator structure and supporting one end of a shaft and with a rotor frame supported to be able to rotate via a slide bearing through which the shaft runs and having an axial direction field-type rotary magnet and an eccentric weight, wherein the rotor frame has a disk part having a burring part into which a slide bearing is fitted and at least one rivet hole, while the eccentric weight has a covering part superposed over the disk part at the side opposite to the stator structure, at least one rivet which is inserted from the covering part through the rivet hole and have heads which are crushed at the stator structure side of the disk part, and an eave-shaped taper part hanging down from the covering part over the outer circumferential edge of the disk part to the stator structure side. | 11-03-2011 |
| 20110260559 | FLAT VIBRATION MOTOR - A flat vibration motor for suppressing deformation of coils even in a reflow at a high temperature, having a stator structure | 10-27-2011 |
| 20110198949 | VIBRATION GENERATOR - A vibration generator making a closed loop of a magnetic circuit of a permanent magnet to obtain a high vibrating force while kept small in size, including a reciprocating vibrator having a ring-shaped permanent magnet in a center hole of a ring-shaped weight, a first and second plate springs supporting this reciprocating vibrator at a recessed case and end plate to be able to elastically displace in a thickness direction spanning a first and a second end faces, a tubular toroidal coil passing through a center hole of the permanent magnet and generating a reciprocating vibrating magnetic field for reciprocatingly driving the permanent magnet in the thickness direction, and a columnar core passing through this toroidal coil, the ring-shaped permanent magnet being magnetized in the thickness direction, and the toroidal coil having a lower toroidal coil and an adjoining reversely wound series connected upper toroidal coil coaxial with the same. | 08-18-2011 |
| 20110198948 | RECIROCATING VIBRATION GENERATOR - A reciprocating vibration generator making the magnetic circuit of a permanent magnet a closed loop so as to obtain a high vibration force, specifically a vibration linear actuator having a ring-shaped weight, a reciprocating vibrator having a ring-shaped permanent magnet in a center hole of the weight, a first plate spring and a second plate spring supporting this reciprocating vibrator with respect to a recessed case and an end plate to be able to elastically displace in a thickness direction between a first end face and a second end face, a tube-shaped toroidal coil running through a center hole of the ring-shaped permanent magnet and generating a reciprocating vibration magnetic field for driving the ring-shaped permanent magnet to reciprocate in the thickness direction, and a columnar core running through the inside of this toroidal coil, wherein the ring-shaped permanent magnet is magnetized in the thickness direction, and the toroidal coil has a lower stage toroidal coil and an upper stage toroidal coil coaxial with and adjacent to the same, wound in the opposite direction, and connected in series with the same. | 08-18-2011 |
| 20100237728 | FLAT VIBRATION MOTOR - A flat vibration motor able to be mounted to a device side board by just reflow processing and able to reduce the occupied area, that is, a flat vibration motor provided with a stator plate having a through hole into which one end of a shaft is fit, the stator plate having a magnetic metal core plate having detent torque generating holes | 09-23-2010 |
| 20100102646 | RECIPROCATING VIBRATION GENERATOR - A reciprocating vibration generator of a structure enabling force of a reciprocating vibrating body striking a coil to be absorbed by magnetic fluid even if an external impact force is applied, that is, a reciprocating vibration generator provided in a case body | 04-29-2010 |
| 20100077419 | DISK DRIVE APPARATUS - A disk drive apparatus able to prevent jamming of a disk and abutting parts having a rotary table fit on a shaft of a brushless motor and carrying a disk and a centering part elastically biased in an axial direction away from a center hole of this rotary table and fit in a center through hole of the disk to center and hold the disk, the centering part having inelastic abutting parts sticking out from a center taper part in radial directions and abutting against an inner circumferential edge of the center through hole and having outer circumferential groove parts forming clearances from the inner circumferential edge between the inelastic abutting parts adjoining each other in the circumferential direction. | 03-25-2010 |
| 20100066182 | RECIPROCATING VIBRATOR - A reciprocating vibrator able to prevent detachment of a spindle etc. even without an outer cover, that is, a vibration linear actuator provided with a ring-shaped weight | 03-18-2010 |
| 20090309436 | FLAT VIBRATION MOTOR - A flat vibration motor including a stator having a spindle for mounting a flexible substrate, and a rotor having an eccentric weight and rotatably supported by the spindle, the flexible substrate having a lower surface substrate overlapped on the lower surface of the stator and centered around the spindle, an upper surface substrate overlapped on the upper surface of the stator plate, and a narrow-width connecting part for connecting the lower surface substrate and the upper surface substrate by bending the lower surface substrate and the upper surface substrate in an integrated fashion at a notch in the circumference of the stator plate, and the upper surface substrate having a through hole for fastening and connecting an upper surface wiring pattern with the stator plate by filing solder bump, whereby reflow soldering in automatic mounting of a printed circuit of instrument side can be performed. | 12-17-2009 |
| 20090184596 | VIBRATION MOTOR - A vibration motor having mounting hardware with a width dimension able to be kept within a thickness of a motor case, that is, a vibration motor provided with a vibration motor body attaching an eccentric weight to a motor shaft sticking out from a bearing part of a motor case and attaching a pair of motor terminals to a plastic end cap closing an opening of the motor case and with mounting hardware carrying this vibration motor body and to be set on a board, wherein the mounting hardware has a raised bottom flat-shaped part facing a barrel circumference of the motor case, oriented in an axial direction, and to be bonded to mounting patterns on the board, a collar-shaped support piece extending from this raised bottom flat-shaped part and fit over the bearing part in the axial direction, and a plug-in support piece extending from the raised bottom flat-shaped part to the opening side and plugged into first and second positioning slots provided in the plastic end cap in the axial direction. | 07-23-2009 |
| 20090079282 | VIBRATION MOTOR - A vibration motor having a vibration motor main body | 03-26-2009 |
| 20090039721 | BOARD MOUNTED STRUCTURE OF VIBRATION MOTOR - A board mounted structure of a vibration motor which self aligns along with melting of cream solder even if deviation occurs in positioning of the flat bottom surface of a metal holder frame and a fastening pattern at the time of automatic mounting, that is, a board mounted structure having a vibration motor having a metal holder frame into which a motor case is fit and a pair of external terminal pieces attached to a plastic end cap and a printed circuit board having a fastening pattern shaped left-right symmetric about a center line and superposed with a bottom surface of the metal holder frame and power feed patterns adjoining this fastening pattern, arranged left-right symmetrical with respect to a center line, and superposed with corresponding external terminal pieces, the metal holder frame having front projecting pieces and a back projecting piece at its flat bottom surface, the fastening pattern having front extending pattern surfaces superposed with corresponding front projecting pieces and a back extending pattern surface superposed with the back projecting piece at its main fastening pattern surface. | 02-12-2009 |
| 20080201729 | Disk drive device - A disc drive device able to increase the number of plastic flexible cantilever beams and improve a centering holding function of a disc to enable handling of high speed revolution, that is, a disc drive device having a plastic turntable mounted on a shaft of a spindle motor, wherein this turntable has a disc hole engagement projection provided with a ring-shaped projection and a plurality of centering portions which extend from this ring-shaped projection outwardly in a diametrical direction and have guide surfaces from which an edge of a disc hole easily slides off, a disc carrying portion formed connected to an outer circumference side of this disc hole engagement projection and receiving one surface of the disc, through holes formed defined between adjoining centering portions, and flexible cantilever beams extending in the through holes from the ring-shaped projection outward in the diametrical direction and having front end portions resiliently contacting a hole wall of the disc hole, two or more flexible cantilever beams being arranged in each through hole. | 08-21-2008 |
