Abstract: A dual inverter is connected to a double-ended three-phase coil of a three-phase motor. The dual inverter is operated as a rectifier for rectifying a grid voltage. The dual inverter is connected to a DC power supply including a bi-directional DCDC converter for changing a power-supply voltage. Each of three H-bridges of the dual inverter consists of a PWM-leg and a fixed potential leg, which are regularly changed. An upper arm switch is continuously turned on. A cold battery supplies a single-phase AC current to the three-phase motor in order to produce an alternating magnetic field.

Abstract: An upper bridge of the power converter drives a half of phase windings. A lower bridge of the power converter drives the other half of the phase windings. For example, an upper neutral point of a star-connected upper phase windings is connected to a lower neutral point of a star-connected lower phase windings via a connection switch. A current-absorbing leg absorbs a current from the upper neutral point. A current-supplying leg supplies a current to the lower neutral point. Preferably, the power converter has an asymmetric bridge mode, a dual Miller mode and an accelerated bridge mode by means of switching the connection switch, the current-absorbing leg and the current-supplying leg.

Abstract: An object of the invention is to provide a transverse flux machine apparatus (TFMA) with simple and economical core structure. The TFMA employs a core having laminated iron plates. The core has left diagonal portions and right diagonal portions for forming the 3D flux passages. A plurality of the 3D structures employs laminated iron cores with diagonal portions. By means of employing the diagonal portions, the core looks like a centipede. The centipede-like TFM called CTFM can have a plurality of types. A plurality of motor structure and a plurality of driving means are proposed for the CTFM.

Abstract: It is an object of the present invention to provide a cover panel for keeping a display panel diagonally. A cover panel is employed by an information-indicating means, for example a paper folder, a paper binder, a book with a hard cover and an electronic display. The cover panel is connected to a display panel with a main joint portion. The cover panel is divided into an upper portion and a lower portion by a sub joint portion. When cover panel is opened, the swung lower portion extends on a desk top. In another case, the lower portion and the sub joint portion is abbreviated.

Abstract: An object of the invention is to provide a motor-driving apparatus for driving a variable-speed motor, which increases a motor torque and efficiency at a high rotation speed. The motor-driving apparatus has a three-phase inverter and a boost DC/DC converter, which are operated the single-phase-switching method. The three-phase inverter consists of a nine-switch inverter applying the three-phase voltage to two three-phase windings of the motor. The single-phase-switching method reduces a switching power loss of the nine switch inverter largely. The boost DC/DC converter boosting a battery voltage reduces a copper loss of the inverter and the motor, too.

Abstract: A selection operation of function of a fold-type housing for each shape is stored as a function history of each shape in a function history storage section 16. Each shape is judged based on the result of each of detections by a first sensor (12), a second sensor (13), and a swivel sensor (14), and the function history is read from the function history storage section (16) based on the judgment result. When one of the function histories displayed corresponding to each shape is selected by a side key, a control section (11) starts the function.

Abstract: There is provided a polyamide resin that can achieve a sufficiently high molecular weight compared to conventional polyamide 92, has a broad moldable temperature range or width estimated from a difference between melting point and thermal decomposition temperature, exhibits excellent melt moldability and has excellent chemical resistance and hydrolysis resistance compared to conventional aliphatic polyamide resins without impairing low water absorption property of an aliphatic linear polyoxamide resin. A polyamide resin in which the dicarboxylic acid component is oxalic acid and the diamine component is a diamine component composed of 1,9-nonanediamine and 2-methyl-1,8-octanediamine, with the molar ratio between 1,9-nonanediamine and 2-methyl-1,8-octanediamine being from 6:94 to 99:1.

Abstract: Disclosed is a polyether polyamide elastomer particularly excellent in transparency while retaining properties such as dynamic physical properties, stiffness and bending-fatigue resistance.

Abstract: A selection operation of function of a fold-type housing for each shape is stored as a function history of each shape in a function history storage section 16. Each shape is judged based on the result of each of detections by a first sensor (12), a second sensor (13), and a swivel sensor (14), and the function history is read from the function history storage section (16) based on the judgment result. When one of the function histories displayed corresponding to each shape is selected by a side key, a control section (11) starts the function.

Abstract: A method of producing a polyoxalate resin including polycondensing a dialkyl oxalate represented by formula (2): wherein R represents an alkyl group having 1 to 4 carbon atoms, with a saturated aliphatic diol represented by formula (3): HO-A-OH, wherein A represents a divalent saturated aliphatic hydrocarbon group having 3 to 12 carbon atoms, in which polycondensation reaction product, the molar amount of the dialkyl oxalate [M1] and the molar amount of the saturated aliphatic diol [M2] satisfy relationship (I): 0.5?[M2]/[M1]<1 while controlling the total content of water in the starting reaction mixture to 2,000 ppm or less.

Abstract: A biodegradable polyoxalate resin having a high melt-formability by the formula: X?O-A-O—CO—CO?nY in which A=C3-C12 divalent aliphatic hydrocarbon group, X=H; R—OCOCO— or OHC— group, Y=—OR, —OAOH or —OAOCHO when X=H—, or —OR or —OAOCHO when X=R—OCOCO— or OHC—, R=C1-C4 alkyl, and is usable in a resinous composition with a poly(lactic acid) resin.