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| Number | Title | Issue Date |
| 7354253 | Oil pump An oil pump includes: a rotor 3 for actuating a pump action to suck oil in a suction passage 24 from a suction port 27 to supply oil to a delivery passage by way of a delivery port 19; and a flow control valve for returning an excessive o... | 04/08/2008 |
| 7313969 | Pressure sensor In a pressure sensor which has a metal housing 12 containing a sensor chip 11 and a joint housing 14 and in which an insulating member 15 is arranged to electrically insulate both of the metal housing 12 and the joint housing 14... | 01/01/2008 |
| 7308833 | Torque sensor, wire harness, electric power steering assembly and terminal holder In a torque sensor having lead pins connected to a wire harness, the wire harness includes: a plurality of lead wires; a plurality of connection terminals each having a sleeve mounted around each of the lead pins and a connection portion extended from an outer perip... | 12/18/2007 |
| 7302798 | Hydraulic system, reservoir and pump suction enhancer for motor vehicle A hydraulic system for a motor vehicle is provided with a pump suction enhancer includes a body section defining a small chamber, a venturi tube passage exposed to the small chamber at an inner end thereof and connected to the suction port of the oil pump, and a noz... | 12/04/2007 |
| 7220090 | Linear motor operated machine tool A linear motor actuated machine tool includes a bed, a column, upper and lower X-axis guides, a saddle, upper and lower X-axis linear motor magnets, and upper and lower X-axis linear motor coils. Upper and lower X-axis guides are attached to the upper and lower port... | 05/22/2007 |
| 7207891 | Boot structure fitting for mechanical joint A boot fitting structure is fitted onto an axial component to protect it from a dirty environment including outside dust. The boot has a pair of annular grooves and an annular lip between the pair of annular grooves on an inner surface of the boot. The annular lip d... | 04/24/2007 |
| 7207235 | Ball screw mechanism and electric power steering apparatus using such mechanism An electric power steering apparatus comprises a rack-and-pinion mechanism and a ball screw mechanism. The ball screw mechanism comprises a shaft formed a screw groove and a nut formed a screw groove. A ball-roll path is created spirally by the screw grooves of the ... | 04/24/2007 |
| 7194375 | Pressure sensor A pressure sensor 11 is provided with a connecter housing 30 having a pressure sensing element 20 arranged on an end surface thereof, a sensor housing 40 constructed to have the connecter housing 30 inserted thereinto, a pressure c... | 03/20/2007 |
| 7191048 | Vehicle motion control apparatus A vehicle motion control apparatus is provided for performing a vehicle stability control on the basis of a parameter indicative of lateral margin for a tire on a road. The apparatus includes a steering control device for controlling a relationship between a steerin... | 03/13/2007 |
| 7182712 | Method for regulating offset of current detection signal in driving power transmission controller An offset value setting processing, in which whether or not all wheel velocities of front wheels and rear wheels are 0 km/h is determined and whether or not a pressing amount of an accelerator pedal is 0% is determined. If it is determined that the vehicle velocity ... | 02/27/2007 |
| 7176646 | Electric power steering apparatus and electricity supply system A transformer section transforms a primary voltage and outputs secondary voltage. A control section inputs a first signal indicating a state of electricity supply of a primary power source through an in-vehicle network. The transformer section outputs a second signa... | 02/13/2007 |
| 7171296 | Integrated control apparatus for vehicle An electronic control unit calculates a target yaw rate in accordance with a vehicle speed and a steering angle and calculates the yaw rate difference on the basis of the target yaw rate and an actual yaw rate. The electronic control unit estimates the grip factor o... | 01/30/2007 |
| 7164974 | Vehicle roll sensing using load shift estimation In vehicle roll sensing of the present invention, a self-aligning torque (SAT) estimator estimates a composite value of SATs generated on tire contact patch of right and left wheels. A slip angle computer detects a vehicle speed and a steering angle and computes a s... | 01/16/2007 |
| 7147094 | Drive power transmission control device A drive power transmission control device is provided with an electromagnetic drive power transmission device and an ECU for controlling the application of electric current to an electromagnetic coil of the drive power transmission device. The ECU is bodily provided... | 12/12/2006 |
| 7149615 | Absolute steering angle detection device and absolute steering angle detection method for electric power steering device A steering angle θt detected by the torque sensor is read at S900. Then, an electrical angle θm corresponding to a motor rotational angle is read at S902. At S908 through S922, motor rotational numbers are calculated based on θt, θm a... | 12/12/2006 |
| 7144347 | Differential limiting device A differential limiting device includes a planetary gear mechanism, in which a planetary carrier rotatably distributes the rotational power of a front housing to a ring gear and a sun gear through planetary gears and hence, to a first inner shaft and a second inner ... | 12/05/2006 |
| 7146287 | Resolver signal processing method and processing apparatus The electrically-powered steering apparatus obtains a steering torque and a steering angle within an allowable input range of those inputted into a first resolver and a second resolver based on a real zero point α and further, a steering torque and a steering angle... | 12/05/2006 |
| 7140775 | Sliding guide apparatus A sliding guide apparatus guides a movable member for a base. A pair of guide surfaces are formed on the base. A pair of sliding surfaces are formed on the movable member as so to be opposed to the pair of guide surfaces, respectively. Lubricating oil is supplied be... | 11/28/2006 |
| 7138795 | Rotation angle detector and its temperature correcting method A first sin phase voltage representing the rotational angle of a resolver is derived from the sum of a rotational angle voltage involving a temperature component and a bias voltage. The rotational angle voltage and the bias voltage are calculated by calculating the ... | 11/21/2006 |
| 7134638 | Stop valve for gas tank A stop valve for a gas tank is provided which achieves favorable sealing performance by inhibiting rotation of a sealing member attached to a valve element. A passage is formed inside a valve body, and a valve seat is provided in the passage. The valve element which... | 11/14/2006 |
| 7129660 | Motor-temperature estimation apparatus and motor control apparatus A motor-current square value calculation section 45 calculates, as a motor-current square value, the sum of respective square values of two phase currents converted from three phase currents flowing through an electric motor. A temperature estimation calculat... | 10/31/2006 |
| 7128542 | Variable displacement pump In a hydraulic pump, a cam ring is provided in a cylindrical adaptor for movement in a radial direction, and a differential pressure control valve is provided to control internal pressure and load pressure at the front and back sides of a variable orifice to be intr... | 10/31/2006 |
| 7130728 | Vehicle steering apparatus and method for controlling the same A steer-by-wire steering apparatus for a vehicle has a first control system including a first ECU, and a second control system including a second ECU. Each ECU responds to manipulation of the steering wheel by a driver, and controls a steering motor. The first ECU d... | 10/31/2006 |
| 7129663 | Electric power steering apparatus and booster An electric power steering apparatus includes a booster circuit and a microcomputer. The booster circuit includes a booster coil, a first FET, and a second FET. The booster coil is connected to the first FET, which is grounded. A node a between the booster coil and ... | 10/31/2006 |
| 7128654 | Constant velocity joint The contact angle of the ball 15 with each first guide track 21 of an inner joint member 12 is made to become smaller gradually from an opening portion side toward a bottom portion side, and the curvature radius for the first guide track 21 | 10/31/2006 |
| 7124855 | Flow controlling apparatus for power steering A flow controlling apparatus for a power steering system includes a variable throttle mechanism installed in the pump to change the flow rate of discharged oil from the pump to a hydraulic device; a linear solenoid mechanism controlling the variable throttle mechani... | 10/24/2006 |
| 7126304 | Motor controller and electric power steering apparatus A microcomputer includes a rotation angular velocity computation section, a feedback gain determination section, and a dead time compensation amount determination section. The rotation angular velocity determination section computes the rotation angular velocity of ... | 10/24/2006 |
| 7121378 | Transfer ratio varying apparatus A transfer ratio varying apparatus includes: a steering shaft configured to transmit a steering angle, an actuator connected to the steering shaft and a damper disposed between the input shaft and the steering shaft and configured to absorb vibration caused by the a... | 10/17/2006 |
| 7122983 | Rotating angle detecting apparatus and electric power steering apparatus The invention provides an electric power steering apparatus which can detect a ground fault of an angular resolver without fault. Values of a first resistance (R1), a second resistance (R2), a third resistance (R3) and a fourth resistance (R4... | 10/17/2006 |
| 7118453 | Workpiece grinding method In a workpiece grinding method, a grinding allowance of a predetermined width (T) at at least an end surface portion 21 of a workpiece W is removed with a grinding wheel 10 (or 32) by rotating the workpiece W having a cylindrical portion 20 | 10/10/2006 |
| 7115019 | Grinding method and grinding machine In a grinding machine, a generally cylindrical workpiece having at least first and second grinding areas is ground by use of a grinding wheel supported by a wheel head. The first grinding area is first ground such that power consumed by the grinding machine is maint... | 10/03/2006 |
| 7116026 | Adhesion structure for motor, having thickness determining means An adhesion structure of a motor that adheres a rotor having a first linear expansion coefficient and a magnet having a second linear expansion coefficient, which differs from the first linear expansion coefficient, with an adhesive agent. The adhesion structure inc... | 10/03/2006 |
| 7111718 | Driving force-transmitting device A driving force-transmitting device 10 has a housing 11 and 12, an inner shaft 18, a main clutch 22, a pilot clutch 24 and a cam mechanism 23 including a first and second cam members 26 and 25. Plural ma... | 09/26/2006 |
| 7107862 | Torque sensor assembling method, torque sensor and electric power steering device A method of assembling a torque sensor includes the steps of fixing a first inner coil portion at one end side of a torsion bar, fixing a second inner coil portion at an other end side of the torsion bar, measuring an angle difference between an angle of the first i... | 09/19/2006 |
| 7104169 | Machine tool and bed structure thereof A machine tool includes X-axis, Y-axis, and Z-axis moving units for producing relative movements between a tool and a workpiece; a C-axis drive unit for rotating the workpiece about a C-axis parallel to the Z-axis; and a B-axis turning unit for turning the tool abou... | 09/12/2006 |
| 7101269 | Cylindrical grinding machine Disclosed is a cylindrical grinding machine of the type that a workpiece support device composed of a work head and a foot stock is mounted on a forward upper portion of a bed while a wheel head unit composed of a slide base and a wheel head is mounted on a rear upp... | 09/05/2006 |
| 7102322 | Motor controller A microcomputer includes an actual DUTY value detection section that detects an actual DUTY value γx by measuring the ratio of time in which an output voltage of each phase becomes a power supply voltage in a cycle of a triangular wave. A dead time compensation com... | 09/05/2006 |
| 7102305 | Apparatus and method for controlling motor A motor control apparatus includes a direct-current power source and an inverter circuit, which includes a switching element. The motor control apparatus receives a current command value in every control cycle and calculates a current deviation accumulated value by ... | 09/05/2006 |
| 7102622 | Production equipment monitoring device A production equipment monitoring device comprises a display panel providing a touch switch function, a touch switch display controller displaying on the display panel a touch switch corresponding to a general segmentary operating process, an operating status displa... | 09/05/2006 |
| 7096739 | Pressure sensor containing fluorine-based adhesive A pressure sensor is provided with a semiconductor device that is capable of detecting a pressure, a terminal that is connected to the semiconductor device by a bonding wire, a housing having an accommodation space for the semiconductor device, the bonding wire, and... | 08/29/2006 |
