Abstract: An inductor includes a magnetic base body including soft magnetic metal particles containing iron, first and second external electrodes provided on the magnetic base body, and an internal conductor provided in the magnetic base body, with one end thereof electrically connected to the first external electrode and the other end thereof electrically connected to the second external electrode, the internal conductor extending linearly from the first external electrode to the second external electrode in plan view. The magnetic base body is configured so that a peak intensity ratio is 2 or more between a peak intensity of a first peak and a peak intensity of a second peak in a Raman spectrum obtained by using an excitation laser with a wavelength of 488 nm. The first peak is around a wave number of 712 cm?1, and the second peak is around a wave number of 1320 cm?1.

Abstract: A multiplexer includes: a multilayered body including dielectric layers stacked and having first and second surfaces; a common terminal, a first terminal, a second terminal, and a ground terminal disposed on a surface of the multilayered body; a first filter disposed in the multilayered body and electrically connected between the common terminal and the first terminal; a second filter including: a first inductor electrically connected between the common terminal and the second terminal; and a second inductor connected in series with the first inductor between the first inductor and the second terminal, the second inductor at least partially overlapping with the first inductor, a capacitance between a first end of the second inductor electrically closer to the common terminal and the ground terminal being larger than a capacitance between a first end of the first inductor electrically closer to the common terminal and the ground terminal.

Abstract: An acoustic wave device includes: a substrate; a lower electrode, an air gap being interposed between the lower electrode and the substrate; a piezoelectric film located on the lower electrode; and an upper electrode located on the piezoelectric film such that a resonance region where at least a part of the piezoelectric film is interposed between the upper electrode and the lower electrode is formed and the resonance region overlaps with the air gap in plan view, wherein a surface facing the substrate across the air gap of the lower electrode in a center region of the resonance region is positioned lower than a surface closer to the piezoelectric film of the substrate in an outside of the air gap in plan view.

Abstract: A multilayer piezoelectric element includes a ceramic body formed by a piezoelectric ceramic, and having first and second end face facing a longitudinal direction, first and second principal faces facing a thickness direction perpendicular to the longitudinal direction. A pair of external electrodes cover the first and second end faces, extend from the first and second end faces onto the first principal face via ridge parts connecting the end faces with the principal faces, and project in the thickness direction on the first principal face. Multiple internal electrodes are stacked inside the ceramic body and are connected alternately to the pair of external electrodes along the thickness direction. A surface electrode is provided on at least one of the first and second principal faces, and connected to the external electrode different from the one to which the internal electrode adjacent in the thickness direction is connected.

Abstract: A multi-layer ceramic capacitor includes a ceramic multi-layer chip, a side margin, and a bonding portion. The ceramic multi-layer chip includes a capacitance forming unit including internal electrodes, the internal electrodes being laminated in a first direction and including a base metal material as a main component, positions of end portions of the internal electrodes in a second direction orthogonal to the first direction being aligned with one another within a range of 0.5 ?m in the second direction, and a cover that is disposed outside the capacitance forming unit in the first direction and includes ceramics as a main component. The side margin includes ceramics as a main component and covers the ceramic multi-layer chip in the second direction. The bonding portion is disposed on a bonding surface and includes an oxide including the base metal material, the bonding surface being bonded to the side margin on the cover.

Abstract: A multilayer ceramic capacitor includes a ceramic body including an electrode-stacked portion having first and second internal electrodes that are alternately stacked along a first axis direction, wherein the first internal electrodes include a first inner-layer internal electrode and a first outer-layer internal electrode that is absent at and adjacent to a position corresponding to at least one of four corners of the first inner-layer internal electrode, the second internal electrodes include a second inner-layer internal electrode and a second outer-layer internal electrode that is absent at and adjacent to a position corresponding to at least one of four corners of the second inner-layer internal electrode, and the electrode-stacked portion includes a pair of outer layer portions where the first and second outer-layer internal electrodes are stacked, and an inner layer portion positioned between the outer layer portions and where the first and second inner-layer internal electrodes are stacked.

Abstract: A multilayer ceramic capacitor includes a ceramic body including a multilayer body and a pair of side margin portions, the multilayer body including ceramic layers stacked in a direction of a first axis, internal electrodes interposed between the ceramic layers, a pair of end surfaces perpendicular to a second axis orthogonal to the first axis, and a pair of side surfaces perpendicular to a third axis orthogonal to the first axis and the second axis, the pair of side margin portions covering the pair of side surfaces, and a pair of external electrodes covering the pair of end surfaces, respectively, wherein each of the internal electrodes includes a lead-out portion led out to either one of the pair of end surfaces of the multilayer body and a narrow-width portion having a width in a direction of the third axis smaller than that of the lead-out portion.

Abstract: A multilayer ceramic capacitor includes a ceramic body including a plurality of first and second internal electrodes alternately laminated via a plurality of ceramic layers in the direction of the first axis; and first and second external electrodes covering the end surfaces of the ceramic body, respectively, wherein the plurality of first and second internal electrodes respectively include a plurality of first and second standard internal electrodes having a common configuration, respectively, and a plurality of first and second special internal electrode that have a configuration different from the plurality of first standard internal electrodes, and wherein the plurality of first and second special internal electrodes are successively laminated in a section of the ceramic body that is closer to one side of one of the first and second main surfaces than a center in the direction of the first axis.

Abstract: An odor measurement device includes a sensor having an adsorption film that adsorbs an odorant and outputting a signal corresponding to adsorption of the odorant, a first pump that supplies a first gas containing an odorant to a housing chamber that houses the sensor, a second pump that supplies a second gas for desorbing the odorant from the adsorption film to the housing chamber, and a control device including a determination unit that measures the odorant based on information on an output signal of the sensor in a desorption process in which the odorant is desorbed from the adsorption film, and a control unit that sequentially executes a first mode in which the first gas is supplied to the housing chamber and a second mode in which the second gas is supplied to the housing chamber and the odorant is measured by the determination unit.

Abstract: A multilayer ceramic capacitor includes a ceramic body and first to fourth external electrodes. The ceramic body has first to fourth side surfaces, first to fourth ridges connecting the two side surfaces, and first and second internal electrodes. External electrodes cover the respective ridges and are connected to internal electrodes. The multilayer ceramic capacitor has a height dimension T of 110 ?m or less, and a ratio of a width dimension W to a length dimension L of 0.5 or more and less than 0.85. The internal electrodes extend obliquely outward relative to the X-axis and Y-axis directions from the facing portions, and have lead-out portions towards the ridges.

Abstract: A ceramic electronic device includes: a multilayer chip in which each of a plurality of dielectric layers and each of a plurality of internal electrode layers are alternately stacked, a main component of the dielectric layers being ceramic, the plurality of internal electrode layers being alternately exposed to a first end face and a second end face of the multilayer chip, the first end face facing with the second end face; a first external electrode provided on the first end face; and a second external electrode provided on the second end face, wherein a silane film is provided on a surface of the ceramic electronic device, and wherein an organic compound is provided on the silane film, and has a siloxane bonding.

Abstract: A magnetic body of the coil component contains, as soft magnetic alloy grains, first grains whose alloy components are substantially Fe, Si, and Cr, and second grains which contain, as alloy components, Fe, Si, and an element other than Si or Cr that oxidizes more easily than Fe; the average grain size of the second grains is smaller than the average grain size of the first grains; the first grains have, on their surface, an amorphous oxide film containing Si and Cr; the second grains have, on their surface, a crystalline oxide layer containing the element other than Si or Cr that oxidizes more easily than Fe; and the crystalline oxide forms adhesion parts, each contacting a multiple number of the first grains via the amorphous oxide film thereof and coupling or bridging the multiple number of the first grains. The coil component can offer improved mechanical strength.

Abstract: A multilayer ceramic capacitor includes: a multilayer structure having a parallelepiped shape in which each of a plurality of dielectric layers and each of a plurality of internal electrode layers are alternately stacked and are alternately exposed to two edge faces of the multilayer structure, a main component of the plurality of dielectric layers being a ceramic; and a first cover layer and a second cover layer that sandwich the multilayer structure in a stacking direction of the multilayer structure, a main component of the first cover layer and the second cover layer being the same as that of the dielectric layers, wherein the first cover layer includes a first region spaced from the multilayer structure by at least 50 ?m, is thicker than the second cover layer, and has a thickness more than 50 ?m.

Abstract: A method of producing a multi-layer ceramic electronic component includes: preparing a multi-layer unit including ceramic layers laminated in a direction of a first axis, internal electrodes disposed between the ceramic layers, and first and second side surfaces facing each other in a direction of a second axis orthogonal to the first axis, the internal electrodes being exposed from the first and second side surfaces; thermocompression-bonding a first side margin sheet to the first side surface; forming a first side margin by punching the thermocompression-bonded first side margin sheet with the first side surface; thermocompression-bonding a second side margin sheet to the second side surface, the second side margin sheet including a bonding surface having a higher flexibility than the first side margin formed on the first side surface; and forming a second side margin by punching the thermocompression-bonded second side margin sheet with the second side surface.

Abstract: A ceramic electronic device includes a multilayer chip in which each of a plurality of dielectric layers and each of a plurality of internal electrode layers are alternately stacked, the multilayer chip having a parallelepiped rectangular shape, the plurality of internal electrode layers being alternately exposed to two opposite faces of the multilayer chip, and two external electrodes that are formed respectively on the two opposite faces. The two external electrodes have a structure in which a plated layer is formed on a conductive thin film intermittently formed with a thickness of 0.1 µm or more and 1.5 µm or less.

Abstract: A ceramic electronic component includes a multilayer body having internal electrode layers and dielectric layers alternately laminated, and a pair of external electrodes covering each of a pair of first corner portions extending between one surface and a pair of opposing surfaces adjacent to the one surface, wherein the pair of first corner portions each have an arc shape projecting outward when the laminating direction is viewed from front, each of the plurality of internal electrode layers has a substantially rectangular outer edge when the laminating direction is viewed from front, and each of the plurality of internal electrode layers includes a second corner portion exposed to one of the pair of first corner portions so as to be in contact with one of the pair of external electrodes, the arc-shaped second corner portion being positioned at one end of a side alongside the one surface of four sides.

Abstract: [Object] To provide a management apparatus and an air conditioning management system by which the objectivity of a comfort level evaluation relating to a smell in a room can be enhanced and a comfort level can be evaluated also with respect to an unknown smell. [Solving Means] A management apparatus according to an embodiment of the present invention includes a detecting unit, an input unit, a storage unit, and a control unit. The detecting unit detects a smell in a room. The input unit is operated by a user who enters the room and acquires a sensory evaluation of each user which relates to the smell in the room when the user enters the room. The storage unit accumulates evaluation data obtained by associating an output of the detecting unit and an output of the input unit with each other and stores a plurality of attributes relating to a comfort level of the smell in the room, the attributes being classified on the basis of the evaluation data.

Abstract: A multi-layer ceramic capacitor includes a multi-layer unit and a side margin. The multi-layer unit includes ceramic layers laminated in a first direction, internal electrodes disposed between the ceramic layers, a main surface oriented in the first direction, a surface layer portion in a range from the main surface to a predetermined depth, and a center portion adjacent to the surface layer portion in the first direction. The side margin covers the multi-layer unit from a second direction orthogonal to the first direction. The ceramic layers have an average dimension in the first direction that is 0.4 ?m or less. Each of the internal electrodes includes an oxidized region adjacent to the side margin. The oxidized region in the surface layer portion has a dimension in the second direction that is equal to or more than two times the average dimension of the ceramic layers in the first direction.

Abstract: A method of producing a multi-layer ceramic electronic component includes: forming a base film formed from an electrically conductive material on a surface of a ceramic body including internal electrodes laminated and drawn to the surface in such a manner that the base film is connected to the internal electrodes; forming a first nickel film on the base film by an electrolytic plating method; performing, after forming the first nickel film, heat treatment in a weakly reducing atmosphere at a temperature equal to or higher than a temperature at which the first nickel film is recrystallized; and forming a second nickel film on the first nickel film, on which the heat treatment is performed, by an electrolytic plating method.

Abstract: A composite electronic component includes a multilayered body in which a plurality of dielectric layers and a plurality of conductor layers are alternately stacked, a first resonant circuit including a first line and a first capacitor, the first line being formed of one or more first conductor layers of the conductor layers, the first capacitor including a first electrode formed of a plurality of second conductor layers of the conductor layers, and a second resonant circuit including a second line and a second capacitor, the second line being formed of one or more third conductor layers of the conductor layers, the second capacitor including a second electrode formed of the second conductor layers, the second conductor layers being located between the one or more first conductor layers and the one or more third conductor layers.