Abstract: A solar power generator overlies a solar power generator when stowed. A plurality of solar cells of the solar power generator includes first solar cells each having a corner at one end of one side, and second solar cells disposed adjacent to the first solar cells. Each of the second solar cells has a chamfered part at an end, corresponding to the one end, of a side facing the one side. When viewed along thickness direction D3 of a support, a cushioning part of the solar power generator is disposed between the corner of the first solar cell and the chamfered part of the second solar cell and projects more outwardly along the thickness direction D3 of the support than the plurality of solar cells.

Abstract: A honeycomb sandwich structure formed of face skin materials made of fiber reinforced plastics and a honeycomb core has a structure in which an optical fiber sensor structure is embedded in an adhesive layer formed between the face skin materials and the honeycomb core. With this, it is possible to provide a honeycomb sandwich structure and a method of manufacturing the honeycomb sandwich structure that enable precise thermal control to be implemented even when a thermal control device is bonded onto a surface of the honeycomb sandwich structure and enable evaluation of a temperature with high resolution and high accuracy.

Abstract: A method for producing a preform for manufacture of a fiber-reinforced plastic molding. The method includes: fixing a resin-equipped film rolled out from a roll state including a release film and a fixing resin and containing a partially-cured thermosetting resin, to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, thereby obtaining a first dry fiber fabric; separately fixing the resin-equipped film to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, and detaching the release film, thereby obtaining one or more second dry fiber fabrics; and laminating the second dry fiber fabrics on a surface of the first dry fiber fabric with the fixing resin of the second dry fiber fabrics interposed therebetween.

Abstract: A cover for an air conditioning device for a railway vehicle is a cover for an air conditioning device for a vehicle, which covers an air-conditioner main body. The cover includes a core made of a foamed material having heat insulating property, and a surface member made of a fiber reinforced plastic, which covers entire surfaces of the core. The core is deformed into a curved shape by elastic deformation.

Abstract: Provided is an advanced grid structure manufactured by a lamination step of laminating a first tape prepreg group, a second tape prepreg group, and a third tape prepreg group repeatedly in the stated order on a forming die, in which grooves (2, 3, 4) in a lattice shape are formed in three directions, so as to provide crossing regions (7, 8, 9) in which two tape prepreg groups overlap each other, and a heating forming step of forming a laminate by heating under pressure. In the lamination step, the first tape prepreg group, the second tape prepreg group, and the third tape prepreg group are respectively laminated as one layer in crossing regions (7, 8, 9) so that a tape width is maintained, and laminated in non-crossing regions (2a, 3a, 4a) in a state of being folded as two layers in a width direction thereof.

Abstract: A fiber reinforced plastic including: a first fiber reinforced plastic layer including a first fiber fabric and a resin impregnated into the first fiber fabric; a resin flow layer including an inner medium and a resin, the resin flow layer being laminated on the first fiber reinforced plastic layer; a second fiber reinforced plastic layer including a second fiber fabric and a resin impregnated into the second fiber fabric, the second fiber reinforced plastic layer being laminated on the resin flow layer so that the resin flow layer is arranged between the first fiber reinforced plastic layer and the second fiber reinforced plastic layer; and an inorganic filler layer including an inorganic filler having a particle diameter of 20 ?m or more and 50 ?m or less and a resin, the inorganic filler layer being laminated on the second fiber reinforced plastic layer.

Abstract: A honeycomb sandwich structure formed of face skin materials made of fiber reinforced plastics and a honeycomb core has a structure in which an optical fiber sensor structure is embedded in an adhesive layer formed between the face skin materials and the honeycomb core. With this, it is possible to provide a honeycomb sandwich structure and a method of manufacturing the honeycomb sandwich structure that enable precise thermal control to be implemented even when a thermal control device is bonded onto a surface of the honeycomb sandwich structure and enable evaluation of a temperature with high resolution and high accuracy.

Abstract: Provided is an advanced grid structure manufactured by a lamination step of laminating a first tape prepreg group, a second tape prepreg group, and a third tape prepreg group repeatedly in the stated order on a forming die, in which grooves (2, 3, 4) in a lattice shape are formed in three directions, so as to provide crossing regions (7, 8, 9) in which two tape prepreg groups overlap each other, and a heating forming step of forming a laminate by heating under pressure. In the lamination step, the first tape prepreg group, the second tape prepreg group, and the third tape prepreg group are respectively laminated as one layer in crossing regions (7, 8, 9) so that a tape width is maintained, and laminated in non-crossing regions (2a, 3a, 4a) in a state of being folded as two layers in a width direction thereof.

Abstract: The present invention is a method for producing a fiber-reinforced plastic molding including, in the following order, the steps of: forming a preform laminate fixed to a molding die by laminating a plurality of preforms each including a dry fiber fabric and a fixing resin, the preforms being laminated through the fixing resin formed on a surface of the dry fiber fabric and including a partially-cured thermosetting resin exhibiting tackiness at a room temperature; impregnating the dry fiber fabric, provided in the preform laminate fixed to the molding die, with a liquid thermosetting resin; curing the liquid thermosetting resin and the fixing resin to form a fiber-reinforced plastic molding; and demolding the fiber-reinforced plastic molding from the molding die.

Abstract: A cover for an air conditioning device for a railway vehicle is a cover for an air conditioning device for a vehicle, which covers an air-conditioner main body. The cover includes a core made of a foamed material having heat insulating property, and a surface member made of a fiber reinforced plastic, which covers entire surfaces of the core. The core is deformed into a curved shape by elastic deformation.

Abstract: A method of manufacturing a circuit board includes: forming a first through hole in a core material; forming a first conductive film on an inner wall of the first through hole; forming an insulating layer on both surfaces of the core material and in the first through hole; forming a second through hole in the insulating layer in the first through hole; forming a second conductive film on an inner wall of the second through hole; and forming, on surfaces of the insulating layers formed on the both surfaces of the core material, a signal circuit layer electrically connected to the second conductive film.

Abstract: A method for producing a preform for manufacture of a fiber-reinforced plastic molding. The method includes: fixing a resin-equipped film rolled out from a roll state including a release film and a fixing resin and containing a partially-cured thermosetting resin, to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, thereby obtaining a first dry fiber fabric; separately fixing the resin-equipped film to a surface of the dry fiber fabric rolled out from a roll with the fixing resin interposed therebetween, and detaching the release film, thereby obtaining one or more second dry fiber fabrics; and laminating the second dry fiber fabrics on a surface of the first dry fiber fabric with the fixing resin of the second dry fiber fabrics interposed therebetween.

Abstract: Provided is an advanced grid structure manufactured by a lamination step of laminating a first tape prepreg group, a second tape prepreg group, and a third tape prepreg group repeatedly in the stated order on a forming die, in which grooves in a lattice shape are formed in three directions, so as to provide crossing regions in which two tape prepreg groups overlap each other, and a heating forming step of forming a laminate by heating under pressure. In the lamination step, the first tape prepreg group, the second tape prepreg group, and the third tape prepreg group are respectively laminated as one layer in crossing regions so that a tape width is maintained, and laminated in non-crossing regions in a state of being folded as two layers in a width direction thereof.

Abstract: Provided is an advanced grid structure manufactured by a lamination step of laminating a first tape prepreg group, a second tape prepreg group, and a third tape prepreg group repeatedly in the stated order on a forming die, in which grooves (2, 3, 4) in a lattice shape are formed in three directions, so as to provide crossing regions (7, 8, 9) in which two tape prepreg groups overlap each other, and a heating forming step of forming a laminate by heating under pressure. In the lamination step, the first tape prepreg group, the second tape prepreg group, and the third tape prepreg group are respectively laminated as one layer in crossing regions (7, 8, 9) so that a tape width is maintained, and laminated in non-crossing regions (2a, 3a, 4a) in a state of being folded as two layers in a width direction thereof.

Abstract: The present invention is a method for producing a fiber-reinforced plastic molding including, in the following order, the steps of: forming a preform laminate (5b) fixed to a molding die (6) by laminating a plurality of preforms (5a) each including a dry fiber fabric (4) and a fixing resin (2), the preforms being laminated through the fixing resin (2) formed on a surface of the dry fiber fabric and including a partially-cured thermosetting resin exhibiting tackiness at a room temperature; impregnating the dry fiber fabric (4), provided in the preform laminate (5b) fixed to the molding die (6), with a liquid thermosetting resin (11); curing the liquid thermosetting resin (11) and the fixing resin (2) to form a fiber-reinforced plastic molding; and demolding the fiber-reinforced plastic molding from the molding die (6).

Abstract: An optical mirror comprising: a mirror body having a reflective surface; a waffle structure that is connected to a surface opposite to the reflective surface of the mirror body, the waffle structure comprising partition walls, wherein at least one of the partition walls includes a heat generation part; and a power supply part configured to supply power to the heat generation part, wherein the partition walls and the mirror body are made of a same material.

Abstract: Provided is an advanced grid structure manufactured by a lamination step of laminating a first tape prepreg group, a second tape prepreg group, and a third tape prepreg group repeatedly in the stated order on a forming die, in which grooves (2, 3, 4) in a lattice shape are formed in three directions, so as to provide crossing regions (7, 8, 9) in which two tape prepreg groups overlap each other, and a heating forming step of forming a laminate by heating under pressure. In the lamination step, the first tape prepreg group, the second tape prepreg group, and the third tape prepreg group are respectively laminated as one layer in crossing regions (7, 8, 9) so that a tape width is maintained, and laminated in non-crossing regions (2a, 3a, 4a) in a state of being folded as two layers in a width direction thereof.

Abstract: A method of manufacturing a circuit board includes: forming a first through hole in a core material; forming a first conductive film on an inner wall of the first through hole; forming an insulating layer on both surfaces of the core material and in the first through hole; forming a second through hole in the insulating layer in the first through hole; forming a second conductive film on an inner wall of the second through hole; and forming, on surfaces of the insulating layers formed on the both surfaces of the core material, a signal circuit layer electrically connected to the second conductive film.

Abstract: An advanced grid structure has high strength and low thermal expansion, and includes first, second, and third tape prepreg groups each including a plurality of tape prepregs. Each tape prepreg includes carbon fibers that are aligned in a first, second, or third direction and that form respective first, second, and third grid sides. A plurality of each the first, second, and third grid sides are spaced apart at equal intervals in the respective first, second, or third direction to form respective first, second, and third grid side groups. A structure ratio of the advanced grid structure is larger than 0 and 0.107 or less, 0.053 or less, or 0.040 or less. A thermal expansion coefficient of the advanced grid structure is ?0.9 ppm/K or more and 0.9 ppm/K or less. The carbon fibers have a tensile modulus of elasticity of 280 GPa or more and 330 GPa or less.

Abstract: An optical mirror comprising: a mirror body having a reflective surface; a waffle structure that is connected to a surface opposite to the reflective surface of the mirror body, the waffle structure comprising partition walls, wherein at least one of the partition walls includes a heat generation part; and a power supply part configured to supply power to the heat generation part, wherein the partition walls and the mirror body are made of a same material.