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Mitsuba Corporation

Kiryu-shi, Gunma, JP

Mitsuba Corporation Patent applications
Patent application numberTitlePublished
20120025643MOTOR WITH SPEED REDUCTION MECHANISM - A power supply terminal 02-02-2012
20110283622VEHICLE WINDOW OPENING/CLOSING DEVICE - A vehicle window opening/closing device 11-24-2011
20110235353VEHICLE LAMP - A vehicle lamp is formed using a light guide body. Thus light with an excellent aesthetic quality can be emitted without increasing the number of components. The structure has a light guide part (09-29-2011
20110162162WIPER BLADE AND VEHICLE WIPER DEVICE - An interval between an inner face 07-07-2011
20110133584MOTOR WITH SPEED REDUCTION MECHANISM - A worm wheel housing portion 06-09-2011
20110119857METHOD OF MANUFACTURING BLADE RUBBER AND WIPER BLADE - A blade rubber having both of superior durability and wiping performance can be manufactured by using a non-diene-based rubber without environmental burden. A pair of blade-rubber molded bodies molded from the non-diene-based rubber is subjected to an irradiation treatment to generate radical active sites, and monomers are bound by graft polymerization as beginning at the radical active sites. Also, the monomers are adhered on a surface of the blade rubber either before or after the generation of the radical active sites. The irradiation treatment and the graft polymerization may be simultaneously performed or independently performed in this order. In this manner, a surface treatment for reducing friction of the non-diene-based rubber having superior durability can be performed without halogen, and therefore, a blade rubber having superior durability and wiping performance can be manufactured.05-26-2011
20110018385MOTOR01-27-2011
20100294078ENGINE STARTER - Excellent durability can be achieved by reducing thermal influences of the excessive load from the engine side for a clutch roller (11-25-2010
20100253500DOOR MIRROR - A door mirror includes a turn signal lamp for indicating a traveling direction; a foot lamp; and a housing that houses the turn signal lamp and the foot lamp, wherein the turn signal lamp and the foot lamp are provided in the housing such that the turn signal lamp and the foot lamp are provided with outer lenses lying adjacent to each other such that light based on a turning on of one lamp is guided to an outer lens of the other lamp.10-07-2010
20100246875ELECTRIC HORN - An electric horn (09-30-2010
20100238015DOOR MIRROR - A door mirror has a turn lamp that can be mounted easily and without an increased size. The turn lamp (09-23-2010
20100186218Yoke of rotating electric machine and method of manufacturing the same - A method for manufacturing a yoke includes forming a through-hole that is open in a yoke bottom surface and a cylindrical bearing support portion by burring an edge of the through-hole using a burring punch, wherein the burring punch is located on a base end side at a distance from a cylinder front-end portion of the bearing support portion so as to form a ring-shaped flange portion inclined toward an inner radial side on the cylinder front-end portion of the bearing support portion.07-29-2010
20100164333MOTOR WITH SPEED REDUCTION MECHANISM - Detecting a rotation state of a worm wheel side with good accuracy while allowing play between an armature-shaft-side coupling member and a worm-shaft-side coupling member. The armature-shaft-side coupling member is provided together rotatably to the other end of an armature shaft; the worm-shaft-side coupling member is provided together rotatably to one end of a worm shaft; the armature-shaft-side coupling member and the worm-shaft-side coupling member are coupled together rotatably; and a sensor magnet is provided together rotatably to the worm-shaft-side coupling member. Therefore, the rotation state of the worm shaft can be detected with good accuracy. Even if the play is provided between the armature-shaft-side coupling member and the worm-shaft-side coupling member, this play does not affect the accuracy of detection of the rotation state of the worm shaft, thereby bringing no problem regarding accuracy of detection of a rotation state of a worm wheel side.07-01-2010
20100091508VEHICLE LAMP - A vehicle lamp includes a long solid-core shaped light guide; a first light source that irradiates an end portion of the long solid-core shaped light guide in a longitudinal direction such that light is radiated long from an end side of the vehicle lamp toward another end side of the vehicle lamp; and a second light source that irradiates the another end side of the vehicle lamp to a lateral outer side.04-15-2010
20090293218Connection Member In Wiper Blade - A connection member that includes right and left side walls; a shaft support portion that is swingably fitted onto a support shaft that is provided at the blade main body; upper and lower pieces that are formed so as to be continuous from the shaft support portion; and projections that come into sliding contact with inner side surfaces at the opening are formed on outer side surfaces of the right and left side walls, wherein: the shaft support portion and the upper piece are integrally formed so as to bridge the right and left side walls, the lower piece is formed so as to be separated from the right and left side walls by a groove, and outward projection amounts of the projections are larger at the lower piece than at the upper piece.12-03-2009
20090267433WIPER APPARATUS AND MANUFACTURING METHOD THEREOF - The present invention enables replacement work of a wiper motor to be carried out with a link plate being fixed to an output shaft, and achieves improvement of maintainability. A diameter dimension of a through-hole of a motor bracket is set to that of allowing a tip side of a link plate with a ball joint to pass through the through-hole in a state where the link plate is inclined with respect to the motor bracket. Thus, the replacement work of the wiper motor can be carried out with the link plate being fixed to the output shaft. Alignment work of the link plate with respect to the output shaft becomes unnecessary at a time of the replacement work of the wiper motor, and maintainability can be significantly improved without decreasing positional accuracy of wiper members with respect to a front glass.10-29-2009
20090261681Armature in Rotary Electric Device and Its Manufacturing Method - An armature where at least one of a first winding wire and a second winding wire is wound around slots that are opposed to all magnetic poles serving as a same magnetic pole in a predetermined winding direction so as to correspond to a predetermined winding number as a total winding number between respective slots, so that the plurality of coils are formed, and a slot from which the first winding wire is led out and a slot into which the second winding wire is led are located circumferentially at both sides of commutator segments with which the first winding wire and the second winding wire are conductive.10-22-2009
20090255186ELECTRIC MOTOR AND OPENING/CLOSING APPARATUS FOR VEHICULAR OPENING/CLOSING BODY EMPLOYING THE ELECTRIC MOTOR - Connector side terminals 10-15-2009
20090250942ENGINE STARTER - An electromagnetic controller includes an exciting coil unit that is provided with a coil main body and an exciting piece that is positioned at a tip end side of the coil main body so as to be magnetized according to an excitation of the coil main body; and a plunger that is disposed in a ring-shaped space formed at an inner diameter side of the exciting coil unit so as to be movable in the ring-shaped space in an axial center direction, the plunger being displaceable from a non-acting position to an acting position at a tip end side under an attracting force based on magnetization of the exciting piece, wherein an urging member is provided at the inner diameter side of the exciting coil unit so as to urge the plunger to a side of the non-acting position according to demagnetization of the exciting piece.10-08-2009
20090230814Carbon Brush of Motor and Method for Producing the Same - An electric motor that includes a rotor; a coil that is wound around the rotor; and a carbon brush that supplies power to the coil, wherein the brush is formed by using a raw material in which artificial graphite whose crystallites are flaky in shape is mixed with natural graphite whose crystallites are squamous or scaly in shape.09-17-2009
20090146510ELECTRIC MOTOR AND METHOD FOR MANUFACTURING THE SAME - Assembly work of an electric motor in which a power supply device and a rotation detector both equipped in a motor case are connected to a control device via a connector unit can be made easy. A power window motor includes an armature provided with an armature shaft and a motor yoke rotatably accommodating the armature. A gear case is fixed to the motor yoke, and a power supply unit that supplies a driving current to the armature is equipped to the gear case in the axial direction of the armature shaft. A sensor unit that detects rotation of the armature shaft is attached to the power supply unit in the axial direction of the armature shaft. A connector unit for connecting the power supply unit and the sensor unit to the control device is integrally formed with the power supply unit. The power supply unit is attached with the sensor unit in advance and then equipped to the gear case.06-11-2009
20090145263ENGINE STARTER - An engine starter includes a motor that comprises a drive shaft; and a unidirectional rotation clutch system that is helical-splined to the drive shaft. The clutch system includes a clutch inner; a clutch outer; a clutch roller that is interposed between the clutch outer and the clutch inner; and a spring that urges the clutch roller, wherein a compound film is formed on a surface of the clutch roller or surfaces of the clutch outer and the clutch inner.06-11-2009
20090128073Brushless Motor Control Method and Brushless Motor - In a brushless motor for an electric power steering device having a configuration of 2 poles and 3 slots, or of an integral multiple thereof, a stator coil is supplied with current containing a higher harmonic component. A difference of 0.5% to 1.5% is provided between the higher harmonic component content rate of the stator coil current and the higher harmonic component content rate of the induced electromotive force generated in the stator coil with rotation of a permanent magnet, thereby mitigating the influence by an armature reaction generated in the induced electromotive force to reduce torque ripples. The difference between the higher harmonic component content rates is set on the basis of a change that occurs in the induced electromotive force due to the armature reaction at a time of supplying electricity to the armature coil.05-21-2009
20090127972BRUSHLESS MOTOR - A brushless motor according to the present invention is provided with a tubular stator case, a stator core fitted into the stator case, and a rotor rotatably supported via a bearing inside the stator core. The stator core includes a tubular yoke portion and a plurality of split cores which are detachably mounted on the tubular yoke portion. A plurality of commutating-pole teeth which extend radially inward are integrally formed on an inner peripheral surface of the tubular yoke portion at regular intervals in the peripheral direction of the tubular yoke portion; and a root portion of each of the commutating-pole teeth has inclined shoulders which are gradually enlarged radially outward.05-21-2009
20090127943Electric Motor, Production Method Of Stator, And Production Method Of Electric Motor - Brushless motor (05-21-2009
20090126141VEHICLE WINDSHIELD WIPER SYSTEM - In a vehicle windshield wiper system, a support base includes a connecting rod (05-21-2009
20090119865OPPOSITE-TYPE WIPER APPARATUS - Providing an opposite type wiper apparatus which can prevent interference of each wiper blade even if reference position data is lost.05-14-2009
20090115281Armature of Rotating Electric Machine and Method of Manufacturing the same - A rotating electric machine includes a shaft and an armature with a core that includes a shaft hole. The core includes a plurality of core materials that are laminated. When pressing in and fixing the shaft to the shaft hole, the shaft hole is applied with an ironing process in advance in order to rectify a cylindrical hole shape of the shaft hole.05-07-2009
20090113654WIPER APPARATUS - A location space in an engine compartment is made smaller. A DR-side wiper motor and an AS-side wiper motor are arranged within a projection area of a windshield into a cabin of a vehicle in comparison with a DR-side pivot holder and an AS-side pivot holder. Therefore, a location space of each wiper apparatus inside an engine compartment can be made smaller, and can further improve a degree of freedom of design on a vehicle side.05-07-2009
20090107048OPENING/CLOSING APPARATUS FOR VEHICLE - An opening/closing apparatus for a vehicle, which has a door-lock mechanism, is provided. An output of a motor unit is transmitted to a drum having a planetary gear mechanism, and the slide door of the vehicle is driven by an open-side cable and a close-side cable wound around the drum. A closer cable of the door-lock mechanism is coupled to a carrier of the planetary gear mechanism, and coupled to a latch of the door-lock mechanism via a coupling link. The coupling link is constituted as a toggle mechanism so as to regulate the rotation of the latch by the traction force of the closer cable until the latch is rotated toward a full latch direction from an unlatch position. When the regulation of the latch by the toggle mechanism is released, the latch is rotationally driven toward the full latch direction due to the rotation of the carrier.04-30-2009
20090085424Yoke of Rotating Electric Machine and Method of Manufacturing the Same - A rotating electric machine includes a bearing; a rotating shaft supported via the bearing; and a yoke with a bearing support portion formed on a yoke bottom surface. The bearing support portion houses the bearing, and on a cylinder front-end portion of the bearing support portion, integrally formed is a ring-shaped flange portion that is inclined toward an inner radial side so as to prevent the bearing from coming off one end side.04-02-2009
20090058220Brush holder in electric motor - An electric motor includes a cylindrical yoke with a bottom; a bracket that covers an opening of the yoke; and a brush holder. The brush holder includes a brush housing portion, with the brush housing portion having three side piece portions, excluding a bottom piece portion, integrally formed; a first disk portion; and a second disk portion. The first disk portion and the second disk portion are integrated with the bottom piece portion of the brush housing portion. A ring-shaped abutting surface and the bottom piece portion of the brush housing portion are formed on a bracket-side disk surface of the brush holder. The abutting surface is formed as a holding portion that is pressed to the yoke by the bracket via a bracket-side elastic member.03-05-2009
20090015082Electric Motor and Method of Producing Electric Motor - In a fan motor 01-15-2009
20090011242Carbon Commutator and Process for Producing the Same - A commutator utilizing a carbon composite base material, the carbon composite base material including a carbon base material; and an iron layer. The iron layer, to which a metal material can be joined, is formed on a surface of the carbon base material, iron powders, which are used to form the iron layer, are subjected to a treatment so as to increase surface-adsorbed oxygen before placing the iron powders to the surface of the carbon base material that is formed in advance by sintering, and sintering is applied to the iron powders placed on the surface of the carbon base material at a temperature not less than a diffusion temperature of carbon and not more than a melting point of iron in order to form the iron layer on the surface of the carbon base material.01-08-2009
20090001829ELECTRIC MOTOR WITH BRUSH - General versatility of a brush holder is enhanced regarding a difference of specifications of connector parts, and costs of an electric motor with brush are reduced. A pair of brush-side connection terminals electrically connected to brushes is provided to a brush holder mounted inside a motor yoke. A connector part and a pinching part are provided in a connector unit formed separately from the brush holder, power connection terminals are provided in the connector part, and connector-side connection terminals electrically connected to the power connection terminals are provided inside the pinching part. The pinching part is disposed so as to overlap with the brush holder axially, thereby electrically connecting the brush-side connection terminals and the connector-side connection terminals, and the brushes are electrically connected respectively to the power connection terminals, and the pinching part is sandwiched and fixed between the motor yoke and a gear case.01-01-2009
20090000053Tube - A tube which includes: a tube body portion through which a fluid flows; a protector portion having an interior hollow space in which the tube body portion is provided, and an exterior wall defining the interior hollow space and having a flat outer surface; and a supporting portion supporting the tube body portion inside the hollow space in a position spaced from an inner surface of the hollow space. The supporting portion extends from the exterior wall of the protector portion in a direction substantially perpendicular to the flat outer surface of the exterior wall and across the hollow space to support the tube body portion at a middle portion thereof.01-01-2009
20080303685INSTALLATION STRUCTURE OF CAPACITANCE SENSOR AND ASSEMBLY METHOD OF THE SAME - A structure for installing a capacitance sensor which detects an object in vicinity of the capacitance sensor to a door of a vehicle, including a spacer disposed between the door and the capacitance sensor attached at a vehicle-inner side of an opening end of the door. A water-drop prevention portion is formed on an outer surface of the spacer for preventing water from flowing to the capacitance sensor from the door.12-11-2008
20080271277Rubber product for wiping, rubber for wiper blade, method for producing rubber for wiper blade, and wiper unit - A rubber product for wiping, a rubber for a wiper blade, a method for producing a rubber for a wiper blade, and a wiper unit. The rubber product for wiping, for example, includes a hydrophilic gel-like surface treatment layer coated on at least a wiping surface of the rubber product, wherein the wiping surface is softer due to water absorption when moistened than when dried.11-06-2008
20080257077Electric Starter Motor with Idle Gear - A helical spline section 10-23-2008
20080235895Wiper Apparatus for Vehicle - A motor bracket to which a wiper motor is fixed, and a DR side pivot holder are coupled together by means of a DR side pipe frame inclined to a plane perpendicular in the axial direction of an output shaft of a wiper motor, and the motor bracket and an AS side pivot holder are coupled together by means of an AS side pipe frame inclined to the plane perpendicular in the axial direction of the output shaft. An output arm is fixed to the output shaft of the wiper motor, and the output arm is disposed between the DR side pipe frame and the AS side pipe frame, and between the connecting rod for coupling a DR side lever and an AS side lever, and the motor bracket.10-02-2008
20080235894Wiper Apparatus - To provide a wiper apparatus capable of suppressing increase of a play of a push-in part to a panel, and reducing occurrence of noise due to a direct contact of the two members mutually. In order to satisfy the relation of A/B≦0.4, where A is the distance of a perpendicular line from the axial center of an output shaft to a line segment linking the axial centers of DR side and AS side pivot shafts, and B is the distance of a perpendicular line from the push-in part to the line segment, the axial center of output shaft and the line segment linking the axial centers of the DR side and AS side pivot shafts are brought closer to each other.10-02-2008
20080229879Starter - A starter that includes a motor portion that includes a motor shaft; a deceleration mechanism portion that is integrated with the motor portion, the deceleration mechanism portion includes a planetary gear that revolves around the motor shaft; and an output shaft that rotates integrally with a revolution of the planetary gear, wherein a bracket of the deceleration mechanism portion, in which a ring-shaped gear is formed at an inner circumferential surface so as to mesh with the planetary gear, is integrated with a casing of the motor portion by an intermediate bracket.09-25-2008
20080201892WIPER BLADE - Rotation of a tip side of a blade holder toward a windshield at or beyond a predetermined angle is regulated with respect to a wiper arm. A convex portion is formed at a portion of the blade holder opposing to an arm mounting member, and a concave portion is formed at a portion of the arm mounting member opposing to the blade holder, whereby engagement of the convex and concave portions admits rotation of a tip side of the wiper blade toward the windshield at or beyond a predetermined angle to be regulated with respect to the wiper arm. By such a structure, since contact between the wiper arm and the wiper blade is prevented, it is suppressed that a coating of the wiper arm or blade holder is peeled off to bring early its rusty, and that damages of both members make their wiping performance easily deteriorate.08-28-2008

Patent applications by Mitsuba Corporation