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Assignee: Sawafuji Electric Co., Ltd.


Location: Tokyo, JP
No. of patents: 50

1    
NumberTitleIssue Date
7492067Stator for outer rotor multipole generator and method of assembling the stator
An outer rotor type multi-pole generator stator is provided in which a lead wire extending from a coil is connected by fusing to a connecting terminal fitted into and fixed to a bobbin wherein, in order to avoid the lead wire becoming slack after connection by fusin...
02/17/2009
7342333Outer rotor type multipolar generator
An outer rotor type multi-pole generator includes a stator mounted on a stationary support, and a rotor formed by fixedly attaching a magnet to the inner periphery of a bottomed cylindrical rotor yoke that is coaxially fixed to an end of a drive shaft rotatably supp...
03/11/2008
D558239Portable refrigerator
12/25/2007
7194925Starter
A shock absorbing device 8 includes a transmitting section 81, first friction plates 82, second friction plates 83, and a dish spring 84. The transmitting section 81 is engaged with the inner cylindrical portion of the secon...
03/27/2007
7040184Starter
A starter capable of preventing the slippage of a clutch at engine starting and of transmitting a higher torque. In the starter, a power transmission device is integrated with a carrier for supporting a planetary gear of a reduction assembly and an output shaft is h...
05/09/2006
6994530Vibrating type compressor
A vibration type compressor related to the present invention, in which a compressor main body 3 is built into a gastight vessel 2 including a yoke 7-1, a magnetic path member 7 formed from a column-shaped core pole 7-2,
02/07/2006
6937123Electromagnetic switch of engine starter
An electromagnetic switch of an engine starter includes a pair of stationary contacts connectable to a starter motor, a movable contact disposed at a first distance from the pair of stationary contacts; a rod having one end that slidably supports the movable contact...
08/30/2005
6914504Electromagnetic switch for a starter
An electromagnetic switch has at least one pair of projection and groove engageable with each other and extending in an axial direction on an outer cylindrical surface of a solenoid casing and on an inner cylindrical surface of a switch casing. Engagement of the pro...
07/05/2005
6857984Starter having thrust receiving member between motor shaft and output shaft
In a starter, an output shaft is disposed on a same axial line with a motor shaft through a planetary gear reduction device. The output shaft has an accommodation recess at the rear end thereof and rotatably receives the top end of the motor shaft therein through a ...
02/22/2005
6828707Starter having a seal member near bearing for holding output shaft
In a starter, a motor rotation shaft and an output shaft are connected through a reduction device. The output shaft is held rotatably by a rear bearing. The bearing has a plurality of through holes between the inner surface and the outer surface. A housing of the st...
12/07/2004
6817258Starter for internal combustion engine
A starter for an internal combustion engine includes a planetary gear speed reduction mechanism, a pinion and a pinion drive shaft, a motor, a front housing having a plurality of fastening holes disposed at a circumference and a center casing having approximately th...
11/16/2004
6776273Starter having braking member for one-way clutch
A starter having a one-way clutch connects with an output shaft via helical spline. A braking member is provided in a bearing portion of a center case adjacent to an end of the center case away from the motor. The clutch moves toward the rear via a lever when the st...
08/17/2004
6771522Inverter parallel operation system
An inverter includes a DC power supply circuit, an inverter circuit having a plurality of switching elements and switching an output of the DC power supply circuit on the basis of a PWM signal to deliver a high-frequency voltage, a filter circuit converting the high...
08/03/2004
6753621Starter for internal combustion engine
A starter for an internal combustion engine is comprised of an armature, a motor case, a planetary gear speed reduction mechanism connected to an armature shaft, a frame and a partition plate disposed between the motor case and the frame. The partition plate has an ...
06/22/2004
6737836Control system for motor-generator
In a control system for a motor-generator capable of functioning as a three-phase magnet-type synchronous motor after starting of an engine and functioning as a brushless DC motor before starting of the engine, a rotated-position detecting device is arranged to dete...
05/18/2004
6522106Automatic voltage regulating system for engine generator
An automatic voltage-regulating system for an engine generator includes an output voltage detecting device for extracting a single-phase AC output voltage from an output winding wound around a stator to output a detection voltage, and a switching device f...
02/18/2003
6471155Wire winding method and wire winding apparatus for stator core
A method and an apparatus of winding a wire for a stator core in which, in order to wind a wire on a plurality of poles provided along an outer periphery of a stator core, a tension acting on the wire during the time when the wire between a pole on which ...
10/29/2002
6333579Stator for outer rotor-type multi-pole generator
In a stator for an outer rotor-type multi-pole generator, in which coils of an identical type but different from a coil wound around a particular one of cylindrical portions integrally included in a bobbin to cover a plurality of salient poles of a stator...
12/25/2001
6091172Coil connecting structure in outer rotor-type multi-pole generator
An outer rotor-type multi-pole generator includes a plurality of coils wound around a large number of protruding poles provided around an outer periphery of a stator core through a bobbin, and terminal members fitted into fitting tube portions integrally ...
07/18/2000
6030260Connecting terminal for stator
A connecting terminal for a stator which is fitted and fixed in a fitting bore provided in a bobbin included in the stator, includes an external-conductor connecting terminal section fitted and fixed in the fitting bore with one end connected to an extern...
02/29/2000
5965949Engine-driven generator
An engine-driven generator incorporating an engine and a generator into a single unit, with the output shaft of the engine coaxially connected to the rotating shaft of the generator, via a frame structure formed by integrally combining two support members...
10/12/1999
5924393Engine generator
In the frame of an engine generator are arranged an engine, a generator adjacent to the engine, and a fuel tank disposed above the generator. A muffler of the engine is disposed on a side of the fuel tank, and a heat shield plate is provided in the frame ...
07/20/1999
5818136Drip-proof structure for engine generator
In an engine generator in which first and second brackets both in a cylindrical shape clamp an annular core therebetween and a plurality of exhaust ports are provided in the first bracket corresponding to a cooling fan provided on a rotor, for exhausting ...
10/06/1998
5811907Small generator
A small generator comprising a stator having slots on the inner circumferential surface thereof and generating windings wound on the slots, and a salient-pole type rotor freely rotating inside the stator, in which the stator has a plurality of recesses wh...
09/22/1998
5704771Vibrating compressor
A vibrating compressor having a housing with an inner tube and an outer tube formed concentrically. The inner tube is connected with the outer tube via an end plate. The end plate being disposed at one axial end of the inner tube and the outer tube to for...
01/06/1998
5661357Electric rotating machine
An electric rotating machine includes a guide groove in a brush holder fixedly disposed sideways of a commutator, a coil spring mounted under compression between a closed outer end of the guide groove and a brush for exhibiting a spring force to bring an ...
08/26/1997
5658132Power supply for vibrating compressors
A power supply for vibrating compressors having an inverter for converting direct current (d-c) into alternating current (a-c). The power supply includes a d-c power source section for applying d-c voltage to the inverter, a current detecting apparatures ...
08/19/1997
5656896Power supply for vibrating compressors
A power supply for vibrating compressors comprises a voltage booster circuit portion having voltage changing means for boosting the DC voltage of a commercially available battery and changing the boosted voltage, and an AC voltage generating circuit porti...
08/12/1997
5488279Dual power refrigerator
A rotary-compressor control system for electric refrigerators using rotary compressors for cooling the inside of the refrigerators, in which a battery for feeding direct-current power, an inverter power section for converting direct-current (d-c) power fr...
01/30/1996
5270603Coil-end supporting apparatus and a rotary-machinery stator equipped with same
A coil-end supporting apparatus comprising a holder comprising retainers for supporting the coil ends of a rotary machinery stator at both ends of a bar- or plate- shaped support and an insert perpendicularly intersecting the intermediate portion of the s...
12/14/1993
5257174Engine-driven power generating system with over-current protection and stator teeth with grooves on a top surface
An engine-driven power generating system having a bridge circuit section in which low-frequency switching elements are driven alternately by low-frequency drive signals, and high-frequency switching elements driven by high-frequency drive signals during t...
10/26/1993
5250786D-C arc welding apparatus
A d-c arc welding apparatus including an engine-driven welder converting the a-c power generated by an engine-driven alternator into d-c power for use as the drive power of the welder, a battery-driven welder using a battery as the drive power of the weld...
10/05/1993
5249764Coil-end supporting apparatus and a rotary-machinery stator equipped with same
A coil-end supporting apparatus comprising a holder comprising retainers for supporting the coil ends of a rotary machinery stator at both ends of a bar- or plate- shaped support and an insert perpendicularly intersecting the intermediate portion of the s...
10/05/1993
5169348Automatic planing control system
The present invention describes a system for controlling the planing angle of a boat powered by an outboard motor. Sensors are provided which measures the inclination of the propeller of the boat and the acceleration of the boat. An angle-changing motor i...
12/08/1992
5163400Engine unit
An engine unit having a throttle valve drive unit constructed so as to cause a throttle valve to rotate and stop at a desired angular position, characterized in that the throttle valve drive unit comprises a synchronous motor for driving the throttle valve, a ...
11/17/1992
5118978Rotor for a generator
A rotor for a generator includes a core made of a plurality of magnetic plates laminated with each other, a magnet received in a holding portion of the core, and a synthetic resin mold molded on the core in the circular disc shape. A pawl is rotationally ...
06/02/1992
5089735Direct-current motor
A direct-current motor that facilitates the assembly and mounting of components of the motor, including a front bracket made of synthetic resin and defining recesses. A plurality of metallic brushholders are located in the recesses. The protection of the ...
02/18/1992
5053634Waterproofing device for control circuit used in outboard engines
A waterproofing device for an outboard engine control circuit having a hydraulic pump for lifting and lowering a propeller from and into the water, a motor for driving the hydraulic pump, and a control circuit for controlling the motor, comprising waterpr...
10/01/1991
4999563Separately power-feeding welding generator
A separately power-feeding welding generator having at least two main generating windings for supplying power to loads by rectifying an induced voltage and adapted to permit the power being fed from the two main generating windings to the loads to be sepa...
03/12/1991
4710659Resin molded rotor for a magneto generator
In the rotor of a magneto generator, which has a magnet for generating electric power, the mechanical strength of the rotor is born by a metal core, and the metal core is connected to a resin molded disk by insert molding. The rotor is light and can bear ...
12/01/1987
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