Abstract: A spring member is provided between two pressed bodies facing each other in a first direction and includes base plates stacked in the first direction. Each base plate is provided with spring protrusions protruding toward either one pressed body of the two pressed bodies and pressing the two pressed bodies in directions such that the pressed bodies move away from each other in the first direction. Between two base plates adjacent to each other in the first direction, a base plate positioned closer to the one pressed body is provided with an insertion hole into which a spring protrusion of the other base plate is inserted in a state of penetrating therethrough in the first direction. Among portions in an along-plane direction along a plane orthogonal to the first direction provided with the spring protrusions, the spring constant of at least one portion is different from that of another portion.

Abstract: A contact probe includes a first plunger, a second plunger, a coil spring, and a pipe; the first plunger includes a first slide portion that slides along the inner periphery of the pipe; the second plunger includes a second slide portion that slides along the inner periphery of the pipe; and the coil spring includes: a first attachment portion that is attached to the first plunger and tightly wound; a second attachment portion that is attached to the second plunger and tightly wound; a coarsely wound portion; a first contact portion including one end connected to the first attachment portion and another end connected to the coarsely wound portion and contacting the pipe; and a second contact portion including one end connected to the coarsely wound portion and another end connected to the second attachment portion and contacting to the pipe.

Abstract: An imaging apparatus of the present disclosure includes: a liquid crystal panel configured to adjust light transmittance; a light emitting element configured to apply detection light; a first light receiving element configured to receive first detection light transmitted through the liquid crystal panel in the detection light, and to output a first output value related to a light amount of the first detection light; a second light receiving element configured to receive second detection light not transmitted through the liquid crystal panel in the detection light, and to output a second output value related to a light amount of the second detection light; a transmittance calculator configured to calculate a liquid crystal transmittance of the liquid crystal panel based on the first output value and the second output value; and an imaging element configured to image imaging light transmitted through the liquid crystal panel.

Abstract: A valve spring includes a nitrided layer, and a core portion that is further inward than the nitrided layer. A chemical composition of the core portion consists of, in mass %, C: 0.53 to 0.59%, Si: 2.51 to 2.90%, Mn: 0.70 to 0.85%, P: 0.020% or less, S: 0.020% or less, Cr: 1.40 to 1.70%, Mo: 0.17 to 0.53%, V: 0.23 to 0.33%, Ca: 0.0001 to 0.0050%, Cu: 0.050% or less, Ni: 0.050% or less, Al: 0.0050% or less, Ti: 0.050% or less, and N: 0.0070% or less, with the balance being Fe and impurities. In the core portion, a number density of V-based precipitates having a maximum diameter ranging from 2 to 10 nm is 500 to 8000 per ?m2, and in the core portion, a numerical proportion of Ca sulfides with respect to a total number of oxide-based inclusions and sulfide-based inclusions is 0.20% or less.

Abstract: The toner contains binder resin-containing toner particles and silica fine particle S1, wherein the weight-average particle diameter of the toner is 4.0-15.0 ?m, both inclusive, peaks originating with the silica fine particle S1 are observed in 29 Si-NMR measurement of the silica fine particle S1, and, in the spectrum obtained by 29Si CP/MAS NMR or 29Si DD/MAS NMR, the peak area of a peak corresponding to the D1 unit structure in the silica fine particle S1, the peak area of a peak corresponding to the D2 unit structure in the silica fine particle S1, and the peak area of a peak corresponding to the Q unit structure in the silica fine particle S1 satisfy a prescribed relationship.

Abstract: A tensioner includes a movable section, a fixed section, a flat spiral spring, and a back-up spring. The movable section receives load from an entrained transmission body through a tension member. The fixed section supports the movable section so as to be capable of displacing. The flat spiral spring biases the movable section so as to resist the tension member. The flat spiral spring unwinds in a state in which there is a small inter-plate friction force in cases in which there is a large biasing force applied to the tension member to counter load acting from the tension member. The flat spiral spring winds-up in a state in which there is a large inter-plate friction force in cases in which there is a small biasing force applied to the tension member to counter load acting from the tension member. The back-up spring limits wind-up of the flat spiral spring.

Abstract: The spring member (1, 2, 3) includes a conductive plate (11) and a support plate (12), the conductive plate is formed of a material in which at least one of electrical conductivity and thermal conductivity thereof is higher than that of a material forming the support plate, the support plate is formed of the material having a higher Young's modulus than that of the material forming the conductive plate, two end portions of the conductive plate in a second direction (X) are provided with first contact portions (13) that contact a first pressed body (W1), an intermediate portion of the conductive plate in the second direction is provided with a second contact portion (14) that contacts a second pressed body (W2), the two end portions of the conductive plate in the second direction are engaged with two end portions of the support plate in the second direction, an intermediate portion of the support plate in the second direction is provided with a third contact portion (15) that contacts the second contact portio

Abstract: A probe unit includes: a plurality of first contact probes each coming into contact with an electrode to be contacted on one end side in a longitudinal direction; a second contact probe connected to an external ground; and a probe holder configured to hold the first and second contact probes, the probe holder including a first hollow portion configured to allow the first contact probes to be inserted therethrough and hold the first contact probes, a second hollow portion configured to allow the second contact probe to be inserted therethrough and hold the second contact probe, and a through-hole provided around the first hollow portion, wherein the probe holder includes a conductive portion that constitutes the through-hole and electrically connects the through-hole and the second contact probe.

Abstract: A probe card includes: a plurality of conductive contact probes; a probe head configured to accommodate ends of the plurality of contact probes; a laminated member laminated on the probe head on a side opposite to a side of the probe head; and a fastening member including a screw and a nut configured to fasten the probe head and the laminated member to each other, the screw including a head provided on the side of the probe head in which the contact probes extend outwardly, and a shaft inserted through the probe head and the laminated member, the shaft extending and having a diameter smaller than a diameter of the head. The shaft is fixed to the probe head, is threadedly connected to the nut on an end side opposite to the head side, and is configured to fasten the probe head and the laminated member to each other.

Abstract: In accordance with an embodiment, an information processing apparatus acquires a rank of a visiting user and an amount according to the ranking. The information processing apparatus acquires a price at an own store of a commodity that the user has selected for purchase. The information processing apparatus acquires a price at another store of the commodity that the user has selected for purchase. In a case in which the price at the own store is higher than the price at the other store, the information processing apparatus adds an amount based on a difference in price therebetween to the amount according to the ranking, which is acquired by a first acquisition means.

Abstract: A measurement unit includes: a ground portion forming a part of a line configured to provide continuity for grounding electric potential, the ground portion including a surface forming a plane at one end of the ground portion; a signal portion forming a part of a line configured to provide continuity for a signal for measurement, the signal portion including an end portion configured to come out in a plane that is same as the plane of the ground portion; an insulative dielectric portion provided between the ground portion and the signal portion; an electrically conductive first contact probe configured to expand and contract along a longitudinal axis, the first contact probe coming into contact with the signal portion; and an electrically conductive second contact probe configured to expand and contract along a longitudinal axis, the second contact probe coming into contact with the ground portion.

Abstract: A seat member has a seat portion, a receiving surface of which comes into contact with a bearing surface of an end turn portion, a mounting shaft portion protruded from the receiving surface of the seat portion, and an enlarged diameter portion formed at the front end of the mounting shaft portion for guiding press-fitting, in a cross section along an axial direction of a coil spring, an outer diameter of the enlarged diameter portion is set larger than an inner diameter of the end turn portion and an axial length of the enlarged diameter portion is set so that at least a maximum diagonal length of the seat member is larger than an inter-element wire distance.

Abstract: A contact probe includes a first plunger, a second plunger, a coil spring, and a pipe; the first plunger includes a first slide portion that slides along the inner periphery of the pipe; the second plunger includes a second slide portion that slides along the inner periphery of the pipe; and the coil spring includes: a first attachment portion that is attached to the first plunger and tightly wound; a second attachment portion that is attached to the second plunger and tightly wound; a coarsely wound portion; a first contact portion including one end connected to the first attachment portion and another end connected to the coarsely wound portion and contacting the pipe; and a second contact portion including one end connected to the coarsely wound portion and another end connected to the second attachment portion and contacting to the pipe.

Abstract: A probe unit includes: a plurality of contact probes each of which has one end that is brought into contact with a contacting electrode, the one end being an end in a longitudinal direction; a first ground member connected to an external ground; a second ground member provided around each of the contact probes; a connecting member electrically connected to the first ground member, and electrically connected to one end of the second ground member; and a probe holder configured to hold the contact probes, the first ground member, the second ground member and the connecting member.

Abstract: A probe unit includes: a first contact probe configured to come in contact with a signal electrode; a second contact probe configured to come in contact with a ground electrode; a probe holder including a first holder hole through which the first contact probe passes, and a second holder hole through which the second contact probe passes; and a conductive floating member including a first through hole to which the first contact probe is inserted and the signal electrode is inserted, and a second through hole to which the second contact probe is inserted and the ground electrode is inserted. The probe holder is configured such that at least an inner circumferential surface of the first holder hole has an insulating property, and the probe unit has a coaxial structure in which central axes of the first contact probe and the first through hole are aligned with each other.

Abstract: In accordance with an embodiment, an information processing apparatus acquires a rank of a visiting user and an amount according to the ranking. The information processing apparatus acquires a price at an own store of a commodity that the user has selected for purchase. The information processing apparatus acquires a price at another store of the commodity that the user has selected for purchase. In a case in which the price at the own store is higher than the price at the other store, the information processing apparatus adds an amount based on a difference in price therebetween to the amount according to the ranking, which is acquired by a first acquisition means.

Abstract: A seat member has a seat portion, a receiving surface of which comes into contact with a bearing surface of an end turn portion, a mounting shaft portion protruded from the receiving surface of the seat portion, and an enlarged diameter portion formed at the front end of the mounting shaft portion for guiding press-fitting, in a cross section along an axial direction of a coil spring, an outer diameter of the enlarged diameter portion is set larger than an inner diameter of the end turn portion and an axial length of the enlarged diameter portion is set so that at least a maximum diagonal length of the seat member is larger than an inter-element wire distance.

Abstract: A tensioner includes a power spring, and a backup member being in contact with the power spring and supporting the power spring by acting an urging force in a direction opposite to a radial shift of the power spring in a direction in which the power spring is wound. The power spring is unwound in a condition in which an inter-plate frictional force of the power spring is small in a case where an urging force acting from a power spring to a tension member is greater than a load acting from the tensioner arm to the power spring and the power spring is wound in a condition in which the inter-plate frictional force of the power spring is large in a case where the urging force acting from the power spring to the tension member is smaller than the load acting from the tension member to the power spring.

Abstract: A probe unit includes: a plurality of contact probes each of which has one end that is brought into contact with a contacting electrode, the one end being an end in a longitudinal direction; a first ground member connected to an external ground; a second ground member provided around each of the contact probes; a connecting member electrically connected to the first ground member, and electrically connected to one end of the second ground member; and a probe holder configured to hold the contact probes, the first ground member, the second ground member and the connecting member.

Abstract: A pressing structure is arranged between a first pressed body and a second pressed body opposite to the first pressed body and presses the first pressed body and second pressed body. The pressing structure includes a spring member including: a base portion formed of a single strip-like member and having a curved principal surface; two extended portions extending respectively from end portions of the base portion and curved in a form inverse of a curving form of the base portion; and two bent portions extending respectively from end portions of the two extended portions, the end portions being at sides opposite to sides connected to the base portion, the two bent portions being curved in a form inverse of the curving form of the extended portions; and the maximum thickness of the extended portions and bent portions is smaller than the maximum thickness of the base portion.