Abstract: A method is for producing propylene oxide, including reacting propylene, hydrogen, and oxygen, in an acetonitrile solvent or in a mixture of solvents which include acetonitrile and water, in presence of a titanosilicate catalyst and a palladium catalyst supported on a carrier, the propylene being fed into the reaction in the form of liquefied propylene. This realizes efficient production of propylene oxide.

Abstract: A drive transmission device includes a motor pinion gear provided at an output shaft of the driving motor and a-transmission gear engaging the motor pinion gear. In the drive transmission device, a sliding washer and a compression spring are disposed between the transmission-gear and the motor mounting plate. The sliding washer is pressed against a web of the transmission gear by the compression spring.

Abstract: A method of producing methyl methacrylate comprising the following steps: Thermal decomposition step: a hydrocarbon having 3 or more carbon atoms is thermally decomposed to obtain a decomposed gas having a total content of propyne and propadiene of 2 wt % or more, Separation step: mixed liquid rich in propyne and propadiene is separated from the decomposed gas obtained in the thermal decomposition step, Propyne purification step: the mixed liquid rich in propyne and propadiene obtained in the separation step is subjected to extractive distillation, for separation into purified propyne, and crude propadiene containing propadiene as the main component, Isomerization step: the crude propadiene obtained in the propyne purification step is isomerized in the presence of an isomerization catalyst, to obtain crude propyne containing propyne as the main component, and Carbonylation step: the purified propyne obtained in the propyne purification step is reacted with carbon monoxide and methanol in the presence of a

Abstract: The present invention is to provide a tire braking characteristic test apparatus capable of reflecting dynamic characteristic of a vehicle at the time of braking in order to evaluate braking characteristic of tires and also performing a test with easily changing a vehicle condition influencing the braking characteristic of the tires.

Abstract: The present invention provides an acceleration sensation evaluating device that evaluates a sensory acceleration of a driver with respect to an expectation value of acceleration, and a vehicle controller that controls a vehicle according to the evaluation results. The evaluation device detects an amount of operation of the vehicle by the driver of when the vehicle is accelerated, detects an amount of vehicle behavior, computes a physical quantity of an expectation value indicating the expectation value of an acceleration performance which the driver expects based on the detected values, computes a sensory physical quantity indicating a sensation of the acceleration which the driver senses, and computes an evaluation value of the acceleration sensation based on difference or ratio between the physical quantity of the expectation value and the sensory physical quantity.

Abstract: Values of multiple tire dynamic element parameters are set for a tire dynamic model constructed using the tire dynamic element parameters for calculating a tire axial force and a self-aligning torque under a given slip ratio. Next, the values of the tire axial force and the self-aligning torque are calculated using the tire dynamic model and output. The tire dynamic model allows a center position of a contact patch thereof against a road surface to move in accordance with a longitudinal force that occurs as the tire axial force when a slip ratio in a braking/driving direction is given so that a position of the contact patch moves in a longitudinal direction due to the longitudinal force. When designing a vehicle or when designing a tire, the tire dynamic model is used.

Abstract: A pyridazin-3-on derivative of the formula (1): in which R2 is a hydrogen atom or a C1-C3 alkyl group, R3 is a hydrogen atom or a C1-C3 alkyl group, and Q is an optionally substituted phenyl group can be prepared at a high yield and high purity by ring closing a carboxylic acid derivative of the formula (2): in which R2, R3 and Q are the same as defined above, or its salt in the presence of a nitrogen-containing aromatic compound and a boron compound.

Abstract: The present invention is directed to a method for purifying pyruvic acid compounds, which method comprises reacting a pyruvic acid compound of general formula (I): wherein R1 is an optionally substituted lower alkyl group, a lower alkenyl group, a lower alkynyl group, a cycloalkyl group, an aryl group, or a heterocyclic group, and R2 is a lower alkyl group, with a bisulfite of general formula (II): MHSO3  (II) wherein M is NH4 or an alkali metal, to give a bisulfite adduct of the pyruvic acid compound and then decomposing the adduct with an acid. According to the present invention, pyruvic acid compounds can be purified by simple and easy procedures without using purification techniques such as distillation or column chromatography, and the above method is advantageous as a process for the production on an industrial scale.

Abstract: A wire harness fixing device is provided which never wobbles or rotates regardless of the thickness of a body panel to which the fixing device is attached. Such wire harness fixing device includes an attachment plate, clips to be inserted through insertion holes of the body panel, and a pair of protrusions facing each other. The clips are situated between the pair of protrusions. The pair of protrusions are provided with seating portions onto which both side edges of the body panel are seated. The seating portions are taller at positions farther away from the clips.

Abstract: An imidazole derivative of the general formula (1): ##STR1## wherein R.sup.1 and R.sup.2 are each a hydrogen atom or an alkyl, aryl, acyl or aralkyl group, X and Y are each an oxygen or sulfur atom, and Z is a substituted alkyl group is prepared by reducing a thienoimidazole carboxylic acid of the general formula (2): ##STR2## in an alcoholic solvent using a palladium catalyst, adding an adsorbent and an ion exchange resin, chelate resin or polymeric flocculating agent to the reaction mixture, and removing the spent catalyst from the reaction mixture.

Abstract: A process for producing 1-hydroxythienoimidazole carboxylic acid represented by formula (2): ##STR1## wherein R.sup.1 and R.sup.2 are as defined in the specification; wherein said process comprises the steps of:(a) reacting thienoimidazole represented by formula (1) with 1,4-dihalogenodimagnesium butane, in the presence of tetrahydrofuran or a mixed solvent comprising tetrahydrofuran and an aromatic solvent to produce a reaction mixture: ##STR2## wherein R.sup.1 and R.sup.2 are as defined above; (b) adding the reaction mixture obtained in said step (a) and, optionally, carbon dioxide, to: (i) a solution comprising carbon dioxide and tetrahydrofuran, or (ii) a solution comprising carbon dioxide, tetrahydrofuran and an dramatic solvent to give a reaction liquid; and(c) hydrolyzing said reaction liquid.

Abstract: A process for producing a thiophene derivative represented by a general formula (2) involves catalytically reducing a compound represnted by the general formula (1) with hydrogen in a solvent mixture of at least one of alcohol and water in the presence of a palladium catalyst soluble in organic solvents. A thiophene derivative is useful in preparing biotin (Vitamin H).

Abstract: A memory cartridge unloading system in which a memory cartridge inserted into a connector provided in a main body of an apparatus using a memory cartridge can be pulled out from the connector by use of a leverage mechanism. In the unloading system, the memory cartridge is moved in the discharge direction thereof by the leverage mechanism. In the leverage mechanism, the leverage thereof can be changed according to the positions of movement of the memory cartridge in the discharge direction, so that a first force can be generated until the memory cartridge is generated which can pull out the memory cartridge from the apparatus main body the second force being an amount necessary for a finger catch.

Abstract: A memory cartridge unloading system in which a memory cartridge inserted into a connector provided in a main body of an apparatus using a memory cartridge can be pulled out from the connector by use of a leverage mechanism. In the unloading system, the memory cartridge is moved in the discharge direction thereof by the leverage mechanism. In the leverage mechanism, the leverage thereof can be changed according to the positions of movement of the memory cartridge in the discharge direction, so that a first force can be generated until the memory cartridge is pulled out from the connector. Thereafter, a second force less than the first force is generated which can pull out the memory cartridge from the apparatus main body, the second from being an amount necessary for a finger catch.

Abstract: An image processing system which includes an input controller having a CPU adapted to dot and compress density or tone data for an image read out by an input unit and for temporarily staying said compressed image data at a buffer; a work station providing a second CPU adapted to picture-edit not only a code information edited by an editing input unit but also the image data by the use of an input operating means and a display means; a file server including a third CPU connected to the input controller and the work station by bus lines and for storing the image data, code information and edited data picture-edited by the work station in the file server; and an image setter having a fourth CPU for reading out the edited data stored in the file server and subjecting the edited data to a required data processing, thereby outputting an image over an image output unit characterized in that the input controller, the file server, the work station and the image setter are individually and independently subjected to an

Abstract: A digital still camera using a memory cartridge as a storage medium. In the digital still camera, a connector, which is disposed on the side of the camera and into which the memory cartridge is inserted, is abutted against and supported by the inner wall surface of a camera chassis. Due to this, the digital still camera is sufficiently able to tolerate a load occurring when the memory cartridge is inserted, by means of the simplified structure thereof.

Abstract: This invention is an image processing system which includes an input controller having a CPU adapted to dot and compress density or tone data for an image read out by an input unit and for temporarily staying said compressed image data at a buffer; a work station providing a second CPU adapted to picture-edit not only a code information edited by an editing input unit but also the image data by the use of an input operating means and a display means; a file server including a third CPU connected to the input controller and the work station by bus lines and for storing the image data, code information and edited data picture-edited by the work station in the file server; and an image setter having a fourth CPU for reading out the edited data stored in the file server and subjecting the edited data to a required data processing, thereby outputting an image over an image output unit characterized in that the input controller, the file server, the work station and the image setter are individually and independent

Abstract: A portable video camera of the type having a taking lens and an electronic video imaging device comprises a camera body incorporating the electronic video imaging device therein, a handgrip turnably mounted on one side wall of the camera body, and a view finder, electronic or optical, structurally integral with the handgrip for viewing an image of a subject therethrough. Being changeable in position according to camera angles, the action finder can be brought into alignment with an eye of the operator in any shooting angle.

Abstract: An apparatus for controlling steering of wheels of a vehicle comprises a control means, a driving means, and an actuator means. The control means comprises a feed forward signal operating means, a feed back signal operating means for generating signals for variables representing vehicle behaviors and output from a vehicle behavior sensor, and a control signal operating means for calculating a difference or sum of the signals output from the feed forwad and feedback signal operating means. The feed forward signal operating means comprises a steering angle signal circuit, a steering angular velocity signal operating circuit, a steering angle signal operating circuit having a first coefficient circuit for multiplying a steering angle signal with a coefficient, and an adder for adding the outputs from the steering angle signal circuit, the steering angle signal operating circuit, and the steering angular velocity operating circuit.