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| Number | Title | Issue Date |
| 8172524 | Fan including specific stationary vane arrangement A fan includes an impeller rotatable about a rotation axis and having a plurality of rotating vanes, and a plurality of stationary vanes connecting an outer casing to a supporting body which supports a motor rotating the impeller. At least in a portion of each stati... | 05/08/2012 |
| 8169738 | Fluid dynamic bearing mechanism including communicating channel, spindle motor, and disk drive apparatus A fluid dynamic bearing mechanism includes a stationary bearing portion including a sleeve portion, and a rotating bearing portion including an outer rotating portion. A lubricating oil is arranged between the stationary and rotating bearing portions. A first dynami... | 05/01/2012 |
| 8164851 | Base unit for use in storage disk drive apparatus, spindle motor including the base unit, and storage disk drive apparatus including the spindle motor A base unit for use in a storage disk drive apparatus includes a base portion; a stator core including a plurality of teeth; U-phase, V-phase, and W-phase coils; U-phase, V-phase, and W-phase common wires; and a circuit board. The U-phase, V-phase, and W-phase coils... | 04/24/2012 |
| 8164850 | Fluid dynamic bearing device, spindle motor, and disk drive apparatus including nickel coated bearing housing A fluid dynamic bearing device includes a sleeve having a bearing hole into which a shaft is inserted, the sleeve rotatably supporting the shaft to make relative rotation about a center axis and a bearing housing made of a cold-rolled steel plate or a galvanized ste... | 04/24/2012 |
| 8157513 | Axial flow fan An axial flow fan according to the present invention comprises an impeller which rotates about a central axis and including a plurality of blades, a hollow member accommodating therein the impeller, a base portion which is arranged at the hollow member and supports ... | 04/17/2012 |
| 8156513 | Motor and storage disk drive apparatus A motor includes a bearing mechanism, a stationary unit including a stator arranged radially outwards of the bearing mechanism, and a rotary unit supported by the bearing mechanism at the upper side of the stationary unit for rotation about a center axis with respec... | 04/10/2012 |
| 8154162 | Motor and disk drive apparatus provided with a circuit board with wirings A motor for holding a disk with a mounting opening in place includes a rotor unit including a rotor magnet rotatable about a central axis and a stator unit including a stator arranged opposite to the rotor magnet and a circuit board electrically connected to the sta... | 04/10/2012 |
| 8148862 | Bearing device, spindle motor and disk drive apparatus A bearing device includes a shaft, a sleeve and a thrust plate. The shaft includes a convex portion having a curved surface provided at one end thereof. The sleeve includes an inner circumferential surface opposed to an outer circumferential surface of the shaft. Th... | 04/03/2012 |
| 8144423 | Fluid dynamic pressure bearing device, spindle motor and disk drive apparatus A fluid dynamic pressure bearing device includes a shaft, an annular member, and a rotating member. The annular member is fixed to or seamlessly defined with the shaft and is radially opposed to the rotating member. The annular member and the rotating member are cov... | 03/27/2012 |
| 8143751 | Motor and recording disk drive apparatus A rotor unit includes a substantially circular plate shaped cover portion, a rotor hub including a lower cylinder portion, and a magnetic field generating member attached on the lower cylinder portion. An annular salient portion is provided on the lower surface of t... | 03/27/2012 |
| 8138644 | Motor A motor includes a plurality of bus wires of a common phase which are put together before being guided in a common passage to minimize the space arranged to guide the bus wires. Also, the bus wires of a common phase are easily insulated from those of different phase... | 03/20/2012 |
| 8137079 | Motor, fan and manufacturing method of the same A motor according to the present invention preferably includes a boss portion preferably includes an inner ring portion including a substantially ring shaped convex portion at an axially lower end surface thereof. The boss portion preferably includes a through hole ... | 03/20/2012 |
| 8137064 | Fan apparatus A fan apparatus includes an impeller, a motor rotating the impeller, a plurality of stator blades arranged opposite to the impeller in an axial direction. The stator blades each include a curved portion at which the stator blades each are curved with respect to the ... | 03/20/2012 |
| 8133022 | Axial fan and frame thereof An axial fan includes a motor section, an impeller, a housing, and a plurality of supporting ribs. The motor section and the impeller are disposed on the inside of the housing. In a connecting region between an inner end portion of the supporting rib and the base se... | 03/13/2012 |
| 8133006 | Axial flow fan unit A frame for a serially connected axial flow fan unit includes a first housing and a second housing coupled together. The first housing includes a first axial locking mechanism and a first unlocking mechanism, and the second housing includes a second axial locking me... | 03/13/2012 |
| 8123461 | Axial flow fan unit A fan frame includes a first housing having a first end portion in which a first protrusion is arranged, a second housing having a second end portion in which a second protrusion opposing the first protrusion along a specified axis is arranged, the second end portio... | 02/28/2012 |
| 8120873 | Spindle motor and disk drive apparatus provided with the spindle motor A spindle motor includes a rotary unit, a bearing mechanism, a stator, a base member, and a connector connected to a leader line extending from the stator through a communication hole of the base member. The connector includes a pedestal and a metal pin. The leader ... | 02/21/2012 |
| 8120872 | Spindle motor and disk drive apparatus A stator portion of a spindle motor includes a substantially cup-shaped base member including a bottom portion expanding in a radial direction, and a wall portion extending upwards from an outer edge portion of the bottom portion. A circuit board is fixed to a lower... | 02/21/2012 |
| 8120217 | Spindle motor having recess for accomodating terminal A spindle motor includes a stator unit and a rotor unit. The stator unit includes a stator, a base portion, and a printed circuit board. The printed circuit board has a connection portion and an extending portion extending from the connection portion. The base porti... | 02/21/2012 |
| 8113775 | Axial flow fan The present invention provides an axial flow fan including an impeller that has a plurality of rotor vanes and is rotatable about a central axis, a motor that rotary drives the impeller, a base portion that supports the motor, a housing that has an intake vent, an e... | 02/14/2012 |
| 8109743 | Axial flow fan unit An axial flow fan unit includes a first and a second axial flow fan. The first axial flow fan includes a first motor, a plurality of first lead lines connected to the first motor, a first impeller rotatable about a center axis by the first motor, and a first housing... | 02/07/2012 |
| 8109742 | Rotor yoke with cup portion having a deviated center of gravity and a flange portion having a deviated rotational axis A rotor yoke includes a substantially flat or annular flat cover portion coaxial or substantially coaxial with a rotational axis and a substantially cylindrical side wall portion extending from an outer circumference of the cover portion in a parallel or substantial... | 02/07/2012 |
| 8099746 | Motor, storage disk drive apparatus and motor manufacturing method A motor includes a stationary unit, a bearing mechanism, a rotary unit, and a chucking device. The rotary unit includes a rotor yoke provided with a cover portion extending around the chucking device and designed to allow the storage disk to be directly or indirectl... | 01/17/2012 |
| 8095946 | Optical disk motor and disc driving device installing the optical disk motor A cone part in a chucking device capable of freely attaching and detaching a disc having a disc shape includes an abutting portion for abutting an inner peripheral surface of a central through hole of the disc with substantially equal forces along an entire circumfe... | 01/10/2012 |
| 8092195 | Motor and fan apparatus having the motor An electric motor includes a stator portion, a rotor portion, and a bearing mechanism, wherein the rotor portion includes a rotor holder having a substantially cylindrical shape with a closed end, and a field magnet fixed to an inner circumference of the rotor holde... | 01/10/2012 |
| 8089184 | Fan and motor having multiple insulators with an axially protruding conductor pin In a motor, axially upper and lower end surfaces of the stator core are substantially covered by a first insulator and a second insulator, both of which are made of resin. A boss is arranged circumferentially between two neighboring teeth. Three bosses are arranged ... | 01/03/2012 |
| 8087156 | Methods of manufacturing fluid-dynamic-pressure bearing and spindle motor incorporating the bearing, and spindle motor and recording-disk drive incorporating the bearing In spindle motors journaled on fluid-dynamic-pressure bearings, especially in such spindle motors employed in recording-disk drives in implementations that subject the drives to vibration and shock, sealing performance of a capillary seal formed between motor rotor-... | 01/03/2012 |
| 8082561 | Motor provided with chucking device and disk driving device equipped with the motor A motor includes a rotating body including a magnet, and a fixed body including a stator. The stator includes a stator core having an annular core back portion with an upper and a lower surface, and a plurality of circumferentially spaced-apart tooth portions extend... | 12/20/2011 |
| 8079801 | Fan unit A serial axial fan unit includes first and second motors with their base portions, i.e., first and second base portions axially facing each other. A motor gap is arranged axially between the first and second base portions. An axial length of the motor gap is prefera... | 12/20/2011 |
| 8074344 | Method of manufacturing rotor holder The manufacturing method of a rotor holder according to the present invention includes a step in which a top plate portion having a substantially discoid shape substantially centered about a central axis, and a side wall portion extending from an outer circumferenti... | 12/13/2011 |
| 8056210 | Manufacturing method for motor A sleeve portion is inserted into a hole portion of a base bracket on which an adhesive of heat cure type is applied while a rotor portion and a stator portion are retained by a position determining jig. Then, the sleeve portion is initially affixed to the base brac... | 11/15/2011 |
| 8054024 | Brushless motor A brushless motor driven by a sensorless driving circuit includes a rotating body capable of being rotated about a center axis; a rotor magnet arranged coaxially with the rotating body; a stator disposed opposite the rotor magnet; and at least one coil wound around ... | 11/08/2011 |
| 8047816 | Centrifugal pump An electric pump for use with an engine in a vehicle is provided. The electric pump has an impeller having a plurality of blades for moving coolant. A working surface of each blade is formed to be a flat plane which extends generally straight in both an axial direct... | 11/01/2011 |
| 8047803 | Fan apparatus A fan apparatus includes a fan section having a hollow housing with an inlet and an outlet, and a hollow duct section disposed on the outlet side of the fan section. The housing and the duct section are coupled by a coupling member. ... | 11/01/2011 |
| 8033799 | Cooling fan unit and method for drawing out lead wires thereof A cooling fan unit includes a hook groove locking a plurality of lead wires drawn out of a circuit board and being formed in a wall of a housing in a direction of drawing out the lead wires. The hook groove has a lead wire through path which extends substantially pe... | 10/11/2011 |
| 8032903 | Motor with a chucking device for detachably holding a disk and disk drive apparatus equipped with the same In a motor including a chucking device for detachably holding a disk, the chucking device has a center case to which a central opening of the disk is inserted; resilient members received within the center case; and claw members for holding the disk in place. Each of... | 10/04/2011 |
| 8032902 | Motor with a chucking device for detachably holding a disk and disk drive apparatus equipped with the same In a motor including a chucking device for detachably holding a disk, the chucking device has a center case to which a central opening of the disk is inserted. The center case has a cylindrical portion coaxial with the center axis, a cover portion for covering an ax... | 10/04/2011 |
| 8029251 | Fan having conical impeller cup A fan for generating an air flow by rotating an impeller with a motor is provided. A cylindrical outer side surface of a rotor of the motor is press-fitted to an inner side surface of the impeller cup which is substantially cylindrical. An outer side surface of the ... | 10/04/2011 |
| 8018107 | Brushless motor having a substantially flat attachment plate and a circuit board, and disk drive apparatus provided with the same A brushless motor includes a substantially flat attachment plate and a circuit board. The attachment plate includes a plurality of motor attachment portions and a base portion arranged to interconnect the motor attachment portions. The circuit board is arranged on a... | 09/13/2011 |
| 8016556 | Centrifugal fan A centrifugal fan includes a motor having an impeller and a housing for accommodating the motor. The housing has a sidewall surrounding an outer circumference of the impeller. An air inlet is formed in the housing and opposed to a center portion of the impeller. An ... | 09/13/2011 |
