Abstract: An electromagnetic shield includes a plate-shaped base and first projecting portions. The base has a first surface and a second surface, the first surface being configured to allow an electromagnetic wave to be incident on the first surface. The second surface is distant from the first surface and extends along the first surface. The electromagnetic shield includes a dielectric. In the electromagnetic shield, at least one of the first projecting portions has a side including a first point and a second point, the side makes different inclination angles with a projecting direction of the first projecting portion at the first point and the second point. In the projecting direction of the first projecting portion, the second point is closer to the first surface-than the first point is. On the side, an inclination angle ? is greater than an inclination angle ?.

Abstract: An object is to obtain a photocurable inkjet printing ink composition demonstrating not only excellent LED curability and anti-yellowing property but also excellent solubility, while allowing its viscosity to be adjusted to an appropriate level even in the absence of solvent. As a solution, a photocurable inkjet printing ink composition is provided that contains 1.0 to 10.0% by mass of amine-modified oligomers relative to all photopolymerizable components, as well as 1.0 to 40.0 parts by mass of photopolymerization initiators expressed by formula (1) below, and 0.3 to 5.0 parts by mass of thioxanthone-based sensitizers relative to all photopolymerizable components representing 100 parts by mass.

Abstract: An electromagnetic shield includes a plate-shaped base. The base has a first surface and a second surface. The second surface is distant from the first surface and extends along the first surface. The first surface includes a plurality of first recessed portions and a first solid portion. The first solid portion includes a surface in contact with an edge of the first recessed portion in the particular direction, the surface being a basis of a depth of the first recessed portion. The first solid portion has a dimension in a depth direction of the first recessed portion. The second surface includes a plurality of second recessed portions arranged alternately with the plurality of first recessed portions in the particular direction.

Abstract: A thermal insulation material for a battery of the present invention includes a compression adjustment layer and a thermal insulation layer laminated to each other. A ratio of a thickness of the compression adjustment layer to a thickness of the thermal insulation layer is more than 0.5 and less than 4.5, and a compressive stress is from 0.34 MPa through 3.45 MPa when the compression adjustment layer is compressed and deformed at any rate within a range of from 25% through 70% in a thickness direction with respect to a thickness before compression.

Abstract: An object is to provide a thermal insulation material excellent in both thermal insulation property and mechanical strength. A thermal insulation material includes a thermal insulation layer containing silicon dioxide particles and inorganic fibers, and is excellent in both thermal insulation property and mechanical strength, because density ? [g/cm3] of thermal insulation layer, and a cumulative proportion R1 for a fiber length of >0 mm and <4 mm regarding inorganic fibers contained in the thermal insulation layer and a cumulative proportion R2 for a fiber length of ?3 mm and <30 mm regarding inorganic fibers contained in the thermal insulation layer satisfy a relational expression (I) below, R1 and R2 being calculated according to predetermined calculation formulae when the inorganic fibers contained in the thermal insulation layer are summed up based on predetermined conditions. 0.23 R 1 + 0.24 < ? ? - 0.11 ? R 2 + 0.

Abstract: An electromagnetic shield includes a plate-shaped base having a first surface and a second surface. The first surface is a surface configured to allow an electromagnetic wave to be incident on the first surface. The second surface is distant from the first surface and extends along the first surface. The electromagnetic shield includes projecting strip portions. The electromagnetic shield includes a dielectric. The electromagnetic shield has a space forming either a gap or a hole, and the gap or the hole is in contact with the projecting strip portion along a direction intersecting with a longitudinal direction of the projecting strip portion.

Abstract: An electromagnetic shield includes a plate-shaped solid portion having a first surface configured to allow an electromagnetic wave to be incident on the first surface. The solid portion includes solid dielectrics having different relative permittivities. The solid dielectrics are disposed in turn in contact with each other in a particular direction along the first surface.

Abstract: An object is to obtain a photocurable inkjet printing ink composition that demonstrates excellent preservation stability and discharge property, while also presenting curability under ultraviolet light from a light-emitting diode (LED) light source, as well as good adhesion, flexibility and tackiness. As a solution, a photocurable inkjet printing ink composition containing photopolymerizable compounds and photopolymerization initiator is provided, wherein the photocurable inkjet printing ink composition satisfies A to D: A. 2-(allyloxy methyl) methyl acrylate is contained by 5 to 40 percent by mass in all photopolymerizable compounds; B. multifunctional monomers and/or multifunctional oligomers of 0° C. or lower in glass transition temperature are contained by 5 to 20 percent by mass in all photopolymerizable compounds; C. amino group and/or amide group-containing monomers and/or oligomers are contained; and D. the ink composition has a viscosity of 30 mPa·s or lower at 25° C.

Abstract: An anti-migration coating agent for inhibiting a migration of ink compositions, contains a polyvinyl alcohol-based copolymer resin having a structural unit expressed by formula (1) below in the molecule (component A), and a polyvinyl alcohol-based (co)polymer resin having carbonyl groups in the molecule (component B): wherein R1 and R2 each independently represent a hydrocarbon group with 1 to 3 carbon atoms.

Abstract: An electromagnetic shield includes a plate-shaped base. The base has a first surface and a second surface. The second surface is distant from the first surface and extends along the first surface. The first surface includes a plurality of first recessed portions and a first solid portion. The first solid portion includes a surface in contact with an edge of the first recessed portion in the particular direction, the surface being a basis of a depth of the first recessed portion. The first solid portion has a dimension in a depth direction of the first recessed portion. The second surface includes a plurality of second recessed portions arranged alternately with the plurality of first recessed portions in the particular direction.

Abstract: A reinforcement structure includes an adherend, such as a metal plate, and a reinforcement sheet adhering thereto. The reinforcement sheet includes a front layer containing a plurality of fibers, a core material layer, and an adhesive layer. The reinforcement structure is capable of intensively reinforcing a first corner portion of the adherend and obtaining an improvement in strength.

Abstract: An electromagnetic shield is disposed in front of a radar. The radar has different angles of view in different directions. The radar has a first angle of view in a first direction and a second angle of view in a second direction. The second angle of view is smaller than the first angle of view. The second direction is orthogonal to the first direction. The electromagnetic shield has a pair of first sides and a pair of second sides. The pair of first sides face each other in the first direction. The pair of second sides face each other in the second direction. The electromagnetic shield includes a dielectric. At least one of the pair of first sides includes a structure having at least one selected from the group consisting of a projecting portion and a recessed portion.

Abstract: A method for designing radio scattering bodies includes making a determination of a value of an objective function. The objective function represents a radio scattering property of a design target for a case where a radio wave is incident on the design target under a given condition. The determination of the value is made by computation using an analysis model including the design target, the analysis model being created on the basis of a set value of a parameter describing a shape of the design target.

Abstract: An electromagnetic shield includes a plate-shaped base, a plurality of first projecting portions, and a contact portion. The base has a first surface and a second surface. The first surface is a surface configured to allow an electromagnetic wave to be incident on the first surface. The second surface is distant from the first surface. The plurality of first projecting portions project from the first surface in a direction away from the second surface. The electromagnetic shield is capable of being attached to a component such that the component is in contact with the contact portion and the first surface faces the component. A distance from the contact portion to the particular portion in a direction parallel to the first surface is equal to or shorter than a first distance d1 between the first projecting portion closest to the contact portion and the contact portion.

Abstract: An electromagnetic shield includes a plate-shaped base, a plurality of first projecting portions, and a plurality of second projecting portions. The plate-shaped base has a first surface and a second surface. The first surface is a surface configured to allow an electromagnetic wave Ei to be incident on the first surface. The second surface is a surface being distant from the first surface and extending along the first surface. The plurality of first projecting portions project from the first surface in a direction away from the second surface. The plurality of second projecting portions project from the second surface in a direction away from the first surface. The electromagnetic shield includes a dielectric.

Abstract: The present invention provides a member which, with a novel configuration, can transmit and attenuate incident radio waves, without the need for mixing a radio wave absorption material for example a dielectric loss material such as carbon particles or a magnetic loss material such as an iron oxide powder, or incorporating a scattering body. Provided is a radio wave scattering body that is characterized by being configured to transmit at least a portion of incident radio waves and to emit the transmitted radio waves in a scattering state, and comprising a resin composition in which a resin is a main component.

Abstract: Disclosed is an ink composition for photo-curable ink jet printing, comprising (A) at least one selected from the group consisting of hexanediol acrylate, 3-methyl-1,5-pentanediol diacrylate, dipropylene glycol diacrylate, and hydroxy pivalic acid neopentyl glycol diacrylate, (B) at least one of vinyl amide monomer and acryloyl amine monomer, (C) an acrylated amine compound having two photopolymerizable functional groups and two amino groups in a molecule, (D) a monofunctional monomer (excluding vinyl amide monomer which is the (B) component), and a photopolymerization initiator, wherein a content of the (A) component is 40 to 70% by mass, wherein a content of the (B) component is 5 to 30% by mass, wherein a content of the (C) component is 0.1 to 15% by mass, and wherein a viscosity is 200 mPa·s or less.

Abstract: An active energy ray-curable inkjet ink composition, except a certain photocurable inkjet printing ink composition, satisfies: (A) a polyfunctional amine-modified oligomer is contained by to 14.0% by mass; (B) monofunctional monomers are contained by 50.0% by mass or more; (C) a monofunctional monomer with a glass transition temperature of 20° C. or higher is contained by 30.0% by mass or more; (D) a monofunctional monomer with a glass transition temperature of or lower is contained by 20.0% by mass or more; (E) a polyfunctional monomer with a glass transition temperature of 10° C. or lower is contained by 3.0 to 12.0% by mass; and (F) a nitrogen-containing monofunctional monomer is contained by 30.0 to 50.0% by mass.

Abstract: An object is to improve all of the following with respect to a photocurable inkjet printing ink composition: discharge stability during printing, as well as tackiness, base material adhesion, bending resistance, abrasion resistance, and solvent resistance of cured coating film. As a solution, a photocurable inkjet printing ink composition is provided that contains a colorant, photopolymerizable components, and photopolymerization initiator, and satisfies all of conditions (1) to (3) below. (1) an ethylene oxide-modified bifunctional monomer is contained by 5.0 to 40.0% by mass, and monofunctional monomers are contained by 60.0% by mass or more, relative to all photopolymerizable components (2) the theoretical Tg of the ethylene oxide-modified bifunctional monomer is 20° C. or lower (3) the theoretical Tg of a copolymer of solely the monofunctional monomers is 20 to 40° C.

Abstract: A reinforcement sheet for reinforcing a metal plate by adhering to the metal plate includes a core material layer containing a resin and a front layer disposed at one side in a thickness direction of the core material layer. The front layer is obtained by laminating a plurality of unidirectional liber resin composite sheets, and an area ratio of a void in a cross section of a solidified material of the core material layer is 50% or less.