Abstract: A voltage conversion apparatus is disclosed in which a current passes through first and second loop circuits alternately in accordance with ON/OFF operation of a first switching element provided in the first circuit. The direction of a magnetic field through the first loop circuit formed at the ON operation is the same as a direction of a magnetic field through the second loop circuit formed at the OFF operation. The first loop circuit and the second loop circuit are provided on opposite sides of a printed circuit board, respectively, in such a manner that the first loop circuit and the second loop circuit are opposed to each other. A heat sink is provided on a surface of the printed circuit board. A solid pattern of a metal material is provided on an inner layer of the printed circuit board to be connected to the heat sink via a through hole.

Abstract: A voltage conversion apparatus is disclosed in which a current passes through first and second loop circuits alternately in accordance with ON/OFF operation of a first switching element provided in the first circuit. The direction of a magnetic field through the first loop circuit formed at the ON operation is the same as a direction of a magnetic field through the second loop circuit formed at the OFF operation. The first loop circuit and the second loop circuit are provided on opposite sides of a printed circuit board, respectively, in such a manner that the first loop circuit and the second loop circuit are opposed to each other. A heat sink is provided on a surface of the printed circuit board. A solid pattern of a metal material is provided on an inner layer of the printed circuit board to be connected to the heat sink via a through hole.

Abstract: A switching apparatus is disclosed that includes a first loop circuit configured to include a switching element, an inductive component and a capacitor; and a second loop circuit configured to share the inductive component with the first loop circuit, wherein the capacitor is inserted in series with the inductive component in the first loop, wherein the switching apparatus controls respective currents flowing through the first loop circuit and the second loop circuit in an alternating manner by turning on/off the switching element in order to control the current flowing through the inductive component, and wherein a first magnetic flux generated by the current flowing through the first loop circuit as the switching element is being turned on and a second magnetic flux generated by the current flowing through the second loop circuit as the switching element is being turned off head in the same direction.

Abstract: An object of the present invention is to effectively reduce noise generated when driving a three-phase brushless motor. A noise reduction arrangement applied to a three-phase brushless motor is disclosed, wherein respective current loops, which are generated when two switching elements Q1 and Q2 related to U-phase are turned on or off in reversed phase with respect to each other, are opposed to each other in a direction of the normal to a board; respective current loops, which are generated when two switching elements Q3 and Q4 related to V-phase are turned on or off in reversed phase with respect to each other, are opposed to each other in a direction of the normal to the board; and respective current loops, which are generated when two switching elements Q5 and Q6 related to W-phase are turned on or off in reversed phase with respect to each other, are opposed to each other in a direction of the normal to the board.

Abstract: A voltage conversion device includes: first and second loop circuits having a common inductance element. Electric current alternately flows through the first or second loop circuit as a first switching element of the first loop circuit is turned on or off. A magnetic field that is formed when the first switching element is turned on and that penetrates through the first loop circuit and a magnetic field that is formed when the first switching element is turned off after it is turned on and that penetrates through the second loop circuit have the same direction. All elements that constitute the first and second loop circuits are arranged on the same surface of a substrate. The second loop circuit is connected to a second direct-current power source. The first loop circuit is connected to a first direct-current power source.

Abstract: The present invention is related to a voltage conversion apparatus having a first loop circuit and a second loop circuit which share an inductance component, in which a current passes through the first and second loop circuits alternately in accordance with ON/OFF operation of a first switching element provided in the first loop circuit, characterized in that a direction of a magnetic field through the first loop circuit generated at the ON operation of the first switching element in the first loop circuit is the same as a direction of a magnetic field through the second loop circuit generated at the OFF operation of the first switching element in the first loop circuit subsequent to the ON operation.

Abstract: A disclosed interior material structure for a vehicle including an interior material made of a conductive portion and non-conductive portions covering the conductive portion includes a grounding unit (103) configured to electrically connect the conductive portion and a vehicle body. The grounding unit includes an interior material side terminal (201), a vehicle body side terminal (202), and a conductive wire (204). The interior material side terminal has a projecting member configured to bite into the interior material and then to be locked with the bite of the interior material in contact with the conductive portion. The vehicle body side terminal is configured to be attached to the vehicle body such that the vehicle body side terminal is electrically connected to the vehicle body. The conductive wire is configured to electrically connect the interior material side terminal and the vehicle body side terminal.

Abstract: A disclosed interior material structure for a vehicle including an interior material made of a conductive portion and non-conductive portions covering the conductive portion includes a grounding unit (103) configured to electrically connect the conductive portion and a vehicle body. The grounding unit includes an interior material side terminal (201), a vehicle body side terminal (202), and a conductive wire (204). The interior material side terminal has a projecting member configured to bite into the interior material and then to be locked with the bite of the interior material in contact with the conductive portion. The vehicle body side terminal is configured to be attached to the vehicle body such that the vehicle body side terminal is electrically connected to the vehicle body. The conductive wire is configured to electrically connect the interior material side terminal and the vehicle body side terminal.

Abstract: The present invention concerns neutral sugar derivatives of pradimicins, their use as antifungal agents, methods for their preparation, and intermediates for their synthesis.

Abstract: The present invention relates to new antifungal compounds having the formula ##STR1## wherein R.sup.1 is hydrogen, methyl, or hydroxymethyl; R.sup.2 and R.sup.3 are independently selected from the group consisting of hydrogen and C.sub.1-5 alkyl; and R.sup.4 is selected from the group consisting of .beta.-L-xylosyl, .beta.-D-ribosyl, .alpha.-L-arabinosyl, .beta.-D-chinovosyl, .beta.-D-fucosyl, and .beta.-D-glucosyl; with the proviso that when R.sup.1 is methyl or hydroxymethyl, and one of R.sup.2 or R.sup.3 is methyl, R.sup.4 is not .beta.-D-glucosyl; or a pharmaceutically acceptable salt thereof.

Abstract: The present invention concerns neutral sugar derivatives of pradimicins, their use as antifungal agents, methods for their preparation, and intermediates for their synthesis.

Abstract: This invention relates to novel elsamicin A derivatives wherein the 2"-amino group is selectively modified by acylation or alkylation, a process for producing said elsamicin A derivatives, an antitumor composition containing the same as the active ingredient, and a method for therapy using said compositions.

Abstract: This invention relates to elsamicin A derivatives wherein the 2"-amino group is selectively modified by acylation or alkylation, a process for producing said elsamicin A derivatives, an antitumor composition containing the same as the active ingredient, and a method for therapy using said compositions.

Abstract: This invention relates to novel elsamicin A derivatives having an alkylidene group on the 3' and 4'-OH group or a tetrahydropyranyl group on the 4'-OH group, a process for producing said elsamicin A derivatives, antitumor composition containing the same as the active ingredient, and a method for therapy using said compositions.

Abstract: The present invention provides pradimicin analogs which exhibit improved water solubility relative to parent compounds. These novel agents are useful in treatment of fungal infections.

Abstract: This invention relates to novel cephalosporin derivatives of the formula ##STR1## wherein R.sup.1 is hydrogen, a straight, branched, or cyclic lower alkyl group having up to six carbon atoms or a radical of the formula ##STR2## in which R.sup.3 and R.sup.4 are each independently hydrogen, methyl or ethyl, or R.sup.3 and R.sup.4, taken together with the carbon atom to which they are attached, may be a cycloalkylidene ring containing from 3 to 5 carbon atoms;R.sup.2 is a radical selected from the group consisting of ##STR3## wherein R.sup.5 is hydrogen or acetyl; R.sup.6, R.sup.7 and R.sup.8 each are independently C.sub.1-5 alkyl; n is 1 or 2; and y is 1 to 5.In another aspect, this invention relates to compounds of formula I and their nontoxic pharmaeutically acceptable salts, physiologically hydrolyzable esters or solvates.Representative compounds of this invention were selected for testing and were shown to display potent antibacterial activity.

Abstract: The present invention provides antitumor 4'-Demethylepipodophyllotoxin glycosides characterized by the fact that the glycoside moiety is altrose.

Abstract: The epipodophyllotoxin glucosides disclosed are acylated at herein one or both sugar hydroxyl groups. These compounds exhibit significant activity against P388 murine leukemia.

Abstract: Novel cyclic orthoesters and orthocarbonates of 4'-demethylepipodophyllotoxin glucoside are disclosed in the present invention. These compounds are active against experimental murine P388 leukemia.

Abstract: A process for the selective formation of oximino o-protected derivatives of lower alkyl 2-(2-aminothiazol-4-yl)-2-oximinoacetates, and their use in the acylation of 7-amino-cephalosporin compounds is disclosed.