Abstract: A plate member of an acoustic equipment includes a flat plate that constitutes at least a part of the plate member that is used in the acoustic equipment. The flat plate includes a first drawn portion and a second drawn portion. The first drawn portion is recessed in a thickness direction of the flat plate with respect to a predetermined plane orthogonal to the thickness direction of the flat plate and has a rectangular outline when viewed in the thickness direction of the flat plate. The first drawn portion and the second drawn portion are arranged adjacent to each other so as to provide a predetermined gap therebetween. When a standing wave is formed on the flat plate, the first drawn portion and the second drawn portion are arranged so that the gap is located in a position of an antinode of the standing wave.

Abstract: A plate member of an acoustic equipment includes a flat plate that constitutes at least a part of the plate member that is used in the acoustic equipment. The flat plate includes a first drawn portion and a second drawn portion. The first drawn portion is recessed in a thickness direction of the flat plate with respect to a predetermined plane orthogonal to the thickness direction of the flat plate and has a rectangular outline when viewed in the thickness direction of the flat plate. The first drawn portion and the second drawn portion are arranged adjacent to each other so as to provide a predetermined gap therebetween. When a standing wave is formed on the flat plate, the first drawn portion and the second drawn portion are arranged so that the gap is located in a position of an antinode of the standing wave.

Abstract: A speaker unit according to an embodiment includes a diaphragm, a frame, and a current plate. The frame supports an outer circumferential portion of the diaphragm. The current plate is provided in the frame so as to be located at a backside of the diaphragm, and its principal surface is arranged in a direction along an amplitude direction of the diaphragm.

Abstract: A speaker unit according to an embodiment includes a diaphragm, a frame, and a current plate. The frame supports an outer circumferential portion of the diaphragm. The current plate is provided in the frame so as to be located at a backside of the diaphragm, and its principal surface is arranged in a direction along an amplitude direction of the diaphragm.

Abstract: Disclosed is a compound represented by the general formula shown below, which can bind to a retinoid X receptor (RXR), which is one of nuclear receptors, and exhibit an agonistic or antagonistic action. [Wherein, R1 is selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group and an aryl group. R2 is selected from the group consisting of an alkoxy group, an alkyl group, an alkenyl group, an alkynyl group and an aryl group. W is NR3 or CR3; and R3 is selected from a hydrogen, an alkyl group, an alkenyl group, an alkynyl group and an aryl group. X1 and Y1 are selected from CH or N. X2 and Y2 are selected from CH, CR4 or N. R4 is selected from an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, a halogen, a nitro group and an amino group. Z is selected from a carboxylic acid, a carboxylate ester or a hydroxamic acid, which is bound directly or via an alkyl group, an alkenyl group or an alkynyl group.

Abstract: Disclosed is a compound represented by the general formula shown below, which can bind to a retinoid X receptor (RXR), which is one of nuclear receptors, and exhibit an agonistic or antagonistic action. [Wherein, R1 is selected from the group consisting of an alkyl group, an alkenyl group, an alkynyl group and an aryl group. R2 is selected from the group consisting of an alkoxy group, an alkyl group, an alkenyl group, an alkynyl group and an aryl group. W is NR3 or CR3; and R3 is selected from a hydrogen, an alkyl group, an alkenyl group, an alkynyl group and an aryl group. X1 and Y1 are selected from CH or N. X2 and Y2 are selected from CH, CR4 or N. R4 is selected from an alkyl group, an alkenyl group, an alkynyl group, an alkoxy group, a halogen, a nitro group and an amino group. Z is selected from a carboxylic acid, a carboxylate ester or a hydroxamic acid, which is bound directly or via an alkyl group, an alkenyl group or an alkynyl group.