Abstract: An electrolytic capacitor includes an anode body having a porous structure, an anode lead having a sheet shape, a cathode layer, an anode lead frame electrically connected to the anode lead, and a cathode lead frame electrically connected to the cathode layer. The anode lead includes an embedded portion embedded in the anode body and a protrusion portion protruding to an outside of the anode body. The anode lead has a first main surface facing the cathode lead frame and a second main surface opposite to the first main surface. The anode lead is located between a center of the anode body and an end face of the anode body in a first direction in which the first main surface faces the cathode lead frame. The end face of the anode body is positioned at a side close to the cathode lead frame.

Abstract: An electrolytic capacitor including a capacitor element that includes an anode body being porous and including an anode substrate body and a dielectric layer formed on a surface of the anode substrate body, and a solid electrolyte layer covering at least part of the dielectric layer. The anode body has a plurality of principal faces. A surface of the anode body has a first region and a second region different from the first region, and the first region does not include a corner portion where a plurality of the principal faces meet. A surface roughness in the first region is greater than a surface roughness in the second region.

Abstract: Provided is a wavelength conversion member capable of improving brightness of a light source device. Wavelength conversion member according to the present disclosure includes: first phosphor layer that is disposed on an incidence side where excitation light enters, and contains a plurality of first phosphor particles; and second phosphor layer that is disposed on a side reverse to the incidence side and contains a plurality of second phosphor particles. First phosphor particles include an activation component, second phosphor particles include an activation component same as or different from the activation component included in first phosphor particles, and a concentration of the activation component in first phosphor layer is lower than a concentration of the activation component in second phosphor layer.

Abstract: An electrolytic capacitor includes an anode body having a porous structure, an anode lead partially embedded in the anode body, a dielectric layer formed on a surface of the anode body, and a cathode part that covers at least part of the dielectric layer. The anode body has a first region in which first particles sintered together and a second region in which second particles sintered together. The average particle diameter D1 of the first particles is smaller than the average particle diameter D2 of the second particles. The volume-based pore diameter distribution of the anode body with the dielectric layer has a first peak in a range of less than or equal to 0.5 ?m in pore diameter, and a second peak in a range of more than 0.5 ?m in pore diameter.

Abstract: An electrolytic capacitor includes a capacitor element including a porous anode body, an anode wire partially embedded in the anode body, a dielectric layer formed on a surface of the anode body, and a solid electrolyte layer covering at least a portion of the dielectric layer, wherein the anode body is formed of a first metal, the anode wire is formed of a second metal having a different composition from the first metal, and the second metal has a conductivity S2 that is larger than a conductivity S1 of the first metal. This allows for providing an electrolytic capacitor which suppresses an increase in production costs and has a low ESR.

Abstract: An electrolytic capacitor including a capacitor element that includes an anode body being porous, a dielectric layer formed on the surface of the anode body, and a solid electrolyte layer covering at least part of the dielectric layer. The anode body has a plurality of principal surfaces and a corner portion. The corner portion includes a plurality of side portions connecting between the principal surfaces, and one or more vertex portions connecting between the principal surfaces. A surface layer X of at least part of the corner portion is more compact in texture than a surface layer Y of the principal surface adjacent to the surface layer X.

Abstract: An electrolytic capacitor includes an anode body having a porous structure, an anode lead partially embedded in the anode body, a dielectric layer formed on a surface of the anode body, and a cathode part that covers at least part of the dielectric layer. The anode body has a first region in which first particles sintered together and a second region in which second particles sintered together. The average particle diameter D1 of the first particles is smaller than the average particle diameter D2 of the second particles. The volume-based pore diameter distribution of the anode body with the dielectric layer has a first peak in a range of less than or equal to 0.5 ?m in pore diameter, and a second peak in a range of more than 0.5 ?m in pore diameter.

Abstract: An electrolytic capacitor includes a capacitor element that includes a porous anode body including an anode base body and a dielectric layer formed on a surface of the anode base body, and a solid electrolyte layer that covers at least a part of the dielectric layer. The anode body includes a plurality of principal surfaces, and at least a part of a surface layer of at least one principal surface of the plurality of principal surfaces of the anode body is denser than an inside of the anode body.

Abstract: An electrolytic capacitor includes an anode body having a porous structure, an anode lead having a sheet shape, a dielectric layer disposed on a surface of the anode body, a cathode layer covering at least a part of the dielectric layer, an anode lead frame electrically connected to the anode lead, and a cathode lead frame electrically connected to the cathode lead. The anode lead includes an embedded portion embedded in the anode body and a protrusion portion protruding to an outside of the anode body. The anode lead has a first main surface facing the cathode lead frame and a second main surface opposite to the first main surface. The anode lead is located between a center of the anode body and an end face of the anode body in a first direction in which the first main surface faces the cathode lead frame. The end face of the anode body is positioned at a side close to the cathode lead frame.

Abstract: An electrolytic capacitor includes an anode body having a porous structure, an anode lead partially embedded in the anode body, a dielectric layer formed on a surface of the anode body, and a cathode part that covers at least part of the dielectric layer. The anode body has a first region in which first particles sintered together and a second region in which second particles sintered together. The average particle diameter D1 of the first particles is smaller than the average particle diameter D2 of the second particles. The volume-based pore diameter distribution of the anode body with the dielectric layer has a first peak in a range of less than or equal to 0.5 ?m in pore diameter, and a second peak in a range of more than 0.5 ?m in pore diameter.

Abstract: An electrolytic capacitor including a capacitor element that includes an anode body being porous, a dielectric layer formed on the surface of the anode body, and a solid electrolyte layer covering at least part of the dielectric layer. The anode body has a plurality of principal surfaces and a corner portion. The corner portion includes a plurality of side portions connecting between the principal surfaces, and one or more vertex portions connecting between the principal surfaces. A surface layer X of at least part of the corner portion is more compact in texture than a surface layer Y of the principal surface adjacent to the surface layer X.

Abstract: Provided is a wavelength conversion member capable of improving brightness of a light source device. Wavelength conversion member according to the present disclosure includes: first phosphor layer that is disposed on an incidence side where excitation light enters, and contains a plurality of first phosphor particles; and second phosphor layer that is disposed on a side reverse to the incidence side and contains a plurality of second phosphor particles. First phosphor particles include an activation component, second phosphor particles include an activation component same as or different from the activation component included in first phosphor particles, and a concentration of the activation component in first phosphor layer is lower than a concentration of the activation component in second phosphor layer.

Abstract: A light source device includes: an excitation light source that emits excitation light having an energy density of 10 W/mm2 or more; and a phosphor layer that has phosphor particles embedded in the matrix. The phosphor particles include at least one selected from the group consisting of metal oxides represented by a following formula (1) and metal oxides represented by a following formula (2). Y3-x1-y1R1y1Cex1Al5-z1Gaz1O12??(1) Y3-x2-y2R2y2Cex2Al5-z2Scz2O12??(2) In the formula (1), R1 includes at least one selected from the group consisting of Gd and Tb, and x1, y1, and z1 satisfy 0.003?x1?0.03, 0?y1?2.1, and 0?z1?2.2, respectively. In the formula (2), R2 includes at least one selected from the group consisting of Gd and Tb, and x2, y2, and z2 satisfy 0.003?x2?0.03, 0?y2?2.1 and 0?z2?1.5, respectively.

Abstract: A light source device includes: an excitation light source that emits excitation light having an energy density of 10 W/mm2 or more; and a phosphor layer that has phosphor particles embedded in the matrix. The phosphor particles include at least one selected from the group consisting of metal oxides represented by a following formula (1) and metal oxides represented by a following formula (2). Y3-x1-y1R1y1Cex1Al5-z1Gaz1O12??(1) Y3-x2-y2R2y2Cex2Al5-z2Scz2O12??(2) In the formula (1), R1 includes at least one selected from the group consisting of Gd and Tb, and x1, y1, and z1 satisfy 0.003?x1?0.03, 0?y1?2.1, and 0?z1?2.2, respectively. In the formula (2), R2 includes at least one selected from the group consisting of Gd and Tb, and x2, y2, and z2 satisfy 0.003?x2?0.03, 0?y2?2.1 and 0?z2?1.5, respectively.

Abstract: A light source device includes an excitation light source, and a fluorescence layer configured to emit fluorescence by receiving excitation light emitted from the excitation tight source. The fluorescence layer includes at least one selected from a group consisting of a first fluorescent substance and a second fluorescent substance. The first fluorescent substance is configured to emit fluorescence having a peak wavelength ranging :from 400 nm to 510 nm, inclusive, by receiving the excitation light. The second fluorescent substance is configured to emit fluorescence having a peak wavelength ranging from 580 nm to 700 nm, inclusive, by receiving the excitation light. The first fluorescent substance and the second fluorescent substance each have a fluorescence lifetime ranging from 0.1 nanoseconds to 250 nanoseconds, inclusive. Energy density of the excitation light is 10 W/mm2 or more.

Abstract: A voltage nonlinear resistor includes a plurality of N-type ZnO crystal grains, a grain boundary layer, and an oxide grain as a P-type semiconductor. The grain boundary layer is formed between the ZnO crystal grains, and contains at least one kind of oxide of alkaline-earth metal. The oxide grain is disposed between the ZnO crystal grains via the grain boundary layer.

Abstract: A voltage nonlinear resistor includes a plurality of N-type ZnO crystal grains, a grain boundary layer, and an oxide grain as a P-type semiconductor. The grain boundary layer is formed between the ZnO crystal grains, and contains at least one kind of oxide of alkaline-earth metal. The oxide grain is disposed between the ZnO crystal grains via the grain boundary layer.

Abstract: A capacitor includes an electrode and a dielectric layer over the electrode. The dielectric layer includes plural metal oxide particles which are spread, and have an aperture constituted by a space provided between the metal oxide particles. The capacitor further includes an insulating portion on a portion of the electrode facing an opening of the aperture of the dielectric layer. The insulating portion covers the opening of the aperture. This capacitor prevents short-circuiting between the electrodes, thus being highly reliable.

Abstract: A capacitor includes an electrode and a dielectric layer over the electrode. The dielectric layer includes plural metal oxide particles which are spread, and have an aperture constituted by a space provided between the metal oxide particles. The capacitor further includes an insulating portion on a portion of the electrode facing an opening of the aperture of the dielectric layer. The insulating portion covers the opening of the aperture. This capacitor prevents short-circuiting between the electrodes, thus being highly reliable.

Abstract: A capacitor includes a substrate made of an organic film, a first conductive layer provided on an upper surface of the substrate, a first dielectric layer provided on an upper surface of the first conductive layer, a second dielectric layer provided on an upper surface of the first dielectric layer, and a second conductive layer provided on an upper surface of the second dielectric layer. The first dielectric layer is made of plural metal oxide chips spread over on the upper surface of the first conductive layer. The second dielectric layer is made of plural metal oxide chips spread over on a lower surface of the second conductive layer. This capacitor can have a large capacitance.