Patent application number | Description | Published |
20090054515 | SKIN-WHITENING COSMETIC - Disclosed are: a novel skin-whitening agent; and a skin-whitening cosmetic or quasi-drug which is highly effective for prevention/amelioration of melanopathy and is prepared using the skin-whitening agent. The cosmetic contains a compound represented by the general formula (I) and/or a salt thereof as an active ingredient. In the general formula (I), R | 02-26-2009 |
20100037602 | VARIABLE DISPLACEMENT PUMP - A variable displacement pump includes: a rotor mounted in a body; a cam ring mounted radially outside of the rotor, and arranged to move with a change in an eccentricity of the cam ring with respect to the rotor, wherein change of the eccentricity causes a change in a specific discharge rate; and an electromagnetic actuator arranged to actuate the cam ring for regulating the eccentricity. During control of operation of the electromagnetic actuator, a first response is set slower than a second response, wherein the first response is a response of movement of the cam ring to a change of an input signal in a direction to request a decrease in the specific discharge rate, and the second response is a response of movement of the cam ring to a change of the input signal in a direction to request an increase in the specific discharge rate. | 02-18-2010 |
20100322807 | PUMP APPARATUS - A pump apparatus includes a pump housing; a drive shaft; a pump element; a cam ring arranged to vary an inherent discharge amount based on the eccentric amount of the cam ring; a steering state sensing section configured to sense or estimate a steering angle, a steering angular speed or a steering angular acceleration, and to output the steering angle, the steering angular speed or the steering angular acceleration as a steering state sensing signal; and a solenoid configured to be controlled to suppress the eccentric amount of the cam ring so as to decrease the inherent discharge amount with respect to the steering state sensing signal when the vehicle speed is equal to or greater than a first predetermined vehicle speed, relative to the inherent discharge amount when the vehicle speed is smaller than the first predetermined vehicle speed. | 12-23-2010 |
20110150672 | PUMP APPARATUS AND CONTROL METHOD FOR CONTROLLING THE PUMP APPARATUS - A pump apparatus including a pump housing, a drive shaft, a cam ring movably disposed in the pump housing, a pump element disposed within the cam ring and rotationally driven by the drive shaft to vary a specific discharge quantity which is a discharge quantity of the working oil per one rotation of the pump element in accordance with variation in eccentric amount of the cam ring with respect to the drive shaft, and a solenoid which is drivingly controlled on the basis of a steering condition and a vehicle speed and operated to control the eccentric amount of the cam ring. The solenoid is controlled to execute a flow rate reduction control during cranking of an engine of the vehicle in which the cam ring is allowed to move in such a direction as to reduce the specific discharge quantity. | 06-23-2011 |
20120199411 | VARIABLE DISPLACEMENT PUMP - A variable displacement pump includes a pumping part and a cam ring for supplying working fluid to a vehicle steering device. The cam ring is arranged radially outside of the pumping part, and configured to move along with a change in eccentricity of the cam ring, wherein the change in eccentricity causes a change in specific discharge rate. A solenoid is configured to control the eccentricity of the cam ring by being driven with an energizing current conformed to a control setpoint. A base setpoint is calculated based on steering angular speed and vehicle speed. The control setpoint is calculated based on the base setpoint and steering angular acceleration in a manner that the control setpoint increases more quickly than the base setpoint when the base setpoint increases in accordance with steering operation of the steering wheel. | 08-09-2012 |
20130312400 | VARIABLE DISPLACEMENT PUMP - A variable displacement pump includes: a rotor mounted in a body; a cam ring mounted radially outside of the rotor, and arranged to move with a change in an eccentricity of the cam ring with respect to the rotor, wherein change of the eccentricity causes a change in a specific discharge rate; and an electromagnetic actuator arranged to actuate the cam ring for regulating the eccentricity. During control of operation of the electromagnetic actuator, a first response is set slower than a second response, wherein the first response is a response of movement of the cam ring to a change of an input signal in a direction to request a decrease in the specific discharge rate, and the second response is a response of movement of the cam ring to a change of the input signal in a direction to request an increase in the specific discharge rate. | 11-28-2013 |
20140076654 | TORQUE SENSOR AND POWER STEERING SYSTEM USING THE TORQUE SENSOR - Torque sensor detects torque of steering shaft formed by first and second shafts which are connected through torsion bar. Torque sensor has: a magnetic member provided at the first shaft and having magnetic poles alternately arranged in circumferential direction concentrically with rotation axis; a first yoke member provided at the second shaft and having (a) first nail portions arranged concentrically with the rotation axis and facing the magnetic member in radial direction and (b) a first ring portion; a second yoke member provided at the second shaft and having (c) second nail portions arranged concentrically with the rotation axis so that the first and second nail portions are alternately arranged in the circumferential direction and the second nail portions face the magnetic member in the radial direction and (d) a second ring portion arranged to be separated from and face the first ring portion; and a magnetic sensor. | 03-20-2014 |
20140363389 | MELANIN PRODUCTION INHIBITOR - Disclosed is a melanin production inhibitor which has an excellent inhibitory activity on the production of melanin and is highly safe. The melanin production inhibitor is represented by general formula (1) (excluding clotrimazole) and/or a pharmacologically acceptable salt thereof. In the formula, A1, A2 and A3 are independently selected from a hydrogen atom, an aryl group which may have a substituent, and an aromatic heterocyclic group which may have a substituent. At least one of A1, A2 and A3 is selected from the aryl group and the aromatic heterocyclic group, the total number of carbon atoms contained in A1, A2 and A3 is 6 to 50 and, when at least two of A1, A2 and A3 represent the aryl groups or the aromatic heterocyclic groups, the adjacent two aryl or aromatic heterocyclic groups may be bound to each other via an alkyl chain or an alkenyl chain to form a ring; m represents an integer of 0 to 2; X represents a hetero atom, a hydrogen atom, or a carbon atom; R1 and R2 are independently selected from a hydrogen atom and an oxo group. When one of R1 and R2 is an oxo group, the other is not presen. R3 is selected from a hydrogen atom, and a C | 12-11-2014 |