Abstract: An image forming apparatus includes a controller that controls an IC memory that stores control information necessary to print electronic image data and is mountable in and dismountable from a main body thereof, and a reading section that reads the control information from the IC memory. Herein, the image forming apparatus has a decrypting section that decrypts the control information encrypted using a cryptographic key stored in advance, an error checking section that detects an error by checking the control information obtained by the decrypting section with error check codes added in advance, and a destruction judgment section that judges whether the control information is destroyed, by information of the decrypting means and the error checking section, and the destruction judgment section can decrypt the control information.

Abstract: A process for the preparation of an acrylic acid ester polymer, includes carrying out polymerization of an acrylic acid ester or block copolymerization of an acrylic acid ester and another (meth)acrylic monomer in the presence of an organolithium compound and an organoaluminum compound represented by the following formula (I): AlR1R2R3??(I) wherein R1 represents an alkyl group having at least 3 carbon atoms, an alkoxy group having at least 3 carbon atoms or an aryloxy group, R2 and R3 each independently represent an aryloxy group or may be coupled together to form an arylenedioxy group. The process makes it possible to heighten the reaction rate and living properties upon polymerization and heighten the block formation efficiency upon block copolymerization.

Abstract: (1) A methacrylic ester or an acrylic ester is anionically polymerized, using a polymerization initiator compound comprising an addition reaction product of a conjugated diene compound and an organic alkali metal compound, in the presence of a tertiary organoaluminum compound having in the molecule thereof a chemical structure represented by a formula: Al—O—Ar wherein Ar represents an aromatic ring; or (2) a methacrylic ester or an acrylic ester is anionically polymerized, using a polymerization initiator compound comprising an addition reaction product of an organic alkali metal compound and a compound having a 1,1-diaryl-1-alkene structure, by adding the ester in the form of a mixture with the above-mentioned specific tertiary organoaluminum compound to the polymerization system.

Abstract: An electric motor-operated vehicle includes a vehicle body, an electric motor for driving the rear wheel, a motor control unit provided with a motor driving circuit for driving the electric motor and a rear arm having a front end pivoted to swing on the vehicle body and having a rear end supporting the rear wheel, wherein the electric motor and the motor control unit are located within a contour of the rear wheel of the rear arm viewed from either side of the vehicle.

Abstract: A motor driven vehicle includes an electric motor that drives wheels through a power source and an electric motor control unit that drives the electric motor. When a voltage of the power source is a predetermined value or greater, the electric motor control unit controls the electric motor such that rotational speed-torque characteristics that the electric motor has are maintained when the voltage of the power source is at the predetermined value.

Abstract: A method for carrying out a boosting operation includes detecting that a boosting operation has been carried out for making a current value of an electric motor larger than a current value at a normal throttle time and an electric motor has not rotated, detecting that a predetermined time period has elapsed since the detection and after the detection, controlling the current value of the electric motor to be equal to or smaller than a current value determined to be smaller than the current value at the normal full throttle time.

Abstract: An electric vehicle includes a motor, a first controller that controls the motor, a chargeable battery supplying electric power to the motor, a second controller connected to the battery that controls electric charge for the battery and electric discharge from the battery and a first communication path that communicates between the first controller and the second controller. The first and the second controllers each includes a mutual actuating unit for actuating the other controller via the first communication path in response to actuation of the first or second controller.

Abstract: (1) A methacrylic ester or an acrylic ester is anionically polymerized, using a polymerization initiator compound comprising an addition reaction product of a conjugated diene compound and an organic alkali metal compound, in the presence of a tertiary organoaluminum compound having in the molecule thereof a chemical structure represented by a formula: Al—O—Ar wherein Ar represents an aromatic ring; or

Abstract: (1) A methacrylic ester or an acrylic ester is anionically polymerized, using a polymerization initiator compound comprising an addition reaction product of a conjugated diene compound and an organic alkali metal compound, in the presence of a tertiary organoaluminum compound having in the molecule thereof a chemical structure represented by a formula: Al—O—Ar wherein Ar represents an aromatic ring; or (2) a methacrylic ester or an acrylic ester is anionically polymerized, using a polymerization initiator compound comprising an addition reaction product of an organic alkali metal compound and a compound having a 1,1-diaryl-1-alkene structure, by adding the ester in the form of a mixture with the above-mentioned specific tertiary organoaluminum compound to the polymerization system.

Abstract: A process for the preparation of an acrylic acid ester polymer, includes carrying out polymerization of an acrylic acid ester or block copolymerization of an acrylic acid ester and another (meth)acrylic monomer in the presence of an organolithium compound and an organoaluminum compound represented by the following formula (I):

Abstract: A process for the preparation of an acrylic acid ester polymer, includes carrying out polymerization of an acrylic acid ester or block copolymerization of an acrylic acid ester and another (meth)acrylic monomer in the presence of an organolithium compound and an organoaluminum compound represented by the following formula (I): AlR1R2R3  (I) wherein R1 represents an alkyl group having at least 3 carbon atoms, an alkoxy group having at least 3 carbon atoms or an aryloxy group, R2 and R3 each independently represent an aryloxy group or may be coupled together to form an arylenedioxy group. The process makes it possible to increase the reaction rate and living properties upon polymerization and increase the block formation efficiency upon block copolymerization.

Abstract: The present invention provides a method for charging a secondary battery and a charger by which it can be prevented that a secondary battery is charged at very high or low temperature, and that the secondary battery is charged for a long time. Therefore, the secondary battery is prevented from being damaged, so that the lifetime can be prolonged. In this method, a generally constant current is supplied from a charging means to the secondary battery. The constant-current charging is stopped when voltage of the secondary battery has reached a peak value after passage of a predetermined time period from start of the supplying of the first current; temperature of the secondary battery has been out of a predetermined range; or a predetermined time period has passed since start of the supplying of the first current.

Abstract: An object of the invention is to propose a judgment method and device for connection between a secondary battery and a battery charger, in which it is unnecessary to use special wiring or other elements for the judgment. A battery charger A includes charging unit 11 for supplying electric current to the secondary battery B through a connector 6, and a charge-control unit 10 for controlling the charging unit 11. The secondary battery B includes a temperature sensing element 5 for sensing temperature of the secondary battery B. The temperature sensing element 5 has terminals, one of which is connected to a direct current power supply of the battery charger A via the connector 6 when the connection is secured. The charge-control unit 10 is connected to one of the terminals of the temperature sensing element 5, so that the output voltage of the temperature sensing element 5 is input to the charge-control unit 10 when the connection is secured.

Abstract: There is disclosed a method of manufacturing, in which a diaphragm not provided with an annular rib is fastened to a housing through a spring casing.

Abstract: In a method of manufacturing a pressure control valve wherein a fuel introduction path and a fuel discharge path are formed on a housing, a spherical valve body mounting portion is formed in the fuel discharge path and a spherical valve body is mounted on the valve body mounting portion, the spherical valve body itself is used as a jig for forming a valve seat surface, a pushing force is applied to the spherical valve body mounted on the spherical valve body mounting portion to punch it to form a valve seat surface having a concave spherical surface meeting a convex spherical surface of the spherical valve body is formed on a wall surface of the housing produced by aluminium die cast. An annular stepped portion is formed on the boundary between a valve seat surface of the spherical valve body mounting portion and a valve spring mounting portion.