Abstract: An electrostatic image developing toner includes toner particles including a binder resin and vinyl resin particles. When a cross section of the toner particles is observed and the areas Sa [?m2] of Voronoi polygons obtained by Voronoi division of the cross section using geometric centers of the vinyl resin particles as generatrices are measured, Formulae (1) and (2) are satisfied: 0.03?Sac?0.20 (1), Ssd?0.10 (2), where Sac and Ssd represent the median [?m2] and the standard deviation [?m2] of the areas Sa of the Voronoi polygons, respectively.

Abstract: A plate-shaped current collector plate includes a first main surface and a second main surface that is opposite to the first main surface. The current collector plate includes: a first portion that is positioned at a central portion of the current collector plate; a plurality of second portions that extend in a first direction away from the first portion; and a plurality of third portions which extend from portions of the plurality of second portions spaced apart from the first portion and protrude in a second direction that intersects with the first direction. In two adjacent second portions of the plurality of second portions, a gap is provided between a third portion that extends from one of the two adjacent second portions among the plurality of third portions and a third portion that extends from an other one of the two adjacent second portions among the plurality of third portions.

Abstract: An electronic control device includes an enclosure including a first enclosure having an assembly opening and a second enclosure covering the entire assembly opening, the enclosure having a communication opening communicating with the assembly opening; a circuit board accommodated in the enclosure; an integrated circuit element mounted on the circuit board; and a heat dissipating shield member thermally coupled to the integrated circuit element and grounded, wherein the heat dissipating shield member includes an inner portion accommodated inside the enclosure and thermally coupled to the integrated circuit element and an outer portion extending to an outside of the enclosure via the communication opening.

Abstract: There are provided a plurality of radio devices detecting an interference source signal transmitted by an interference source and generating pieces of air time information showing whether the interference source signal exists or not for each predetermined time unit; and an aggregation device estimating air time of the interference source by acquiring the pieces of air time information from the plurality of radio devices and aggregating/integrating the acquired pieces of air time information for each predetermined unit time, matching timings.

Abstract: A predetermined radio base station and subordinate radio terminals detect signals (beacons) regularly transmitted by other radio base stations, transmit information about radio channels and base station identifiers of the detected signals, and position information about the radio terminals to an interference area detection device to aggregate the information and the position information as a base station-base station detection list and a terminal-base station detection list.

Abstract: An electronic control device including a circuit substrate having a signal wiring and a ground wiring; at least one connector having a signal conductor and a ground conductor respectively connected to the signal wiring and the ground wiring of the circuit substrate on one end side and extending on the other end side; a housing including an accommodating portion that accommodates the circuit substrate and the at least one connector, in which a radio wave path through which a leakage electromagnetic wave propagates from one end on the circuit substrate side toward the other end on the side opposite to the circuit substrate side of the at least one connector is formed in an internal space at the periphery of the at least one connector; and a leakage electromagnetic wave attenuating structure provided between the housing and the at least one connector; where the leakage electromagnetic wave attenuating structure includes a plurality of conductors that are arrayed along a direction in which the leakage electromagn

Abstract: An ERW steel pipe for a mechanical structural part, the pipe including a straight pipe portion includes a base metal portion and an ERW portion, wherein the base metal portion has a chemical composition including, in terms of % by mass: 0.30 to 0.38% of C, 0.05 to 0.40% of Si, 0.50 to 2.00% of Mn, 0.010 to 0.060% of Al, 0.005 to 0.050% of Ti, and 0.0003 to 0.0050% of B, wherein a microstructure of a wall thickness central portion of the base metal portion is tempered martensite, wherein, a de-C layer in which a concentration of C is 90% or less with respect to the concentration of C in the chemical composition has a thickness of less than 0.20 mm, and a de-B layer in which a concentration of B is 90% or less with respect to the concentration of B in the chemical composition has a thickness of less than 0.10 mm, at each of inner and outer surface sides of the base metal portion, and wherein each of a Vickers hardness at a position at a depth of 0.

Abstract: A toner for developing an electrostatic charge image contains toner particles containing: a binder resin containing an amorphous resin and a crystalline resin; and resin particles. In differential scanning calorimetry, an endothermic peak temperature Tc of the crystalline resin is 60° C. or higher and 75° C. or lower, a ratio (Q1/Q2) of a heat absorption Q1 of the crystalline resin calculated by performing differential scanning calorimetry on the toner that has been melted at 150° C., then cooled to a temperature 10° C. lower than the endothermic peak temperature Tc, and then retained thereat for 1 minute, to a heat absorption Q2 of the crystalline resin calculated by performing differential scanning calorimetry on the toner that has been melted at 150° C., then cooled to a temperature 10° C. lower than the endothermic peak temperature Tc, and then retained thereat for 30 minutes is 0.15 or more. A maximum value of a loss coefficient tan ? at 50° C. or higher and 70° C. or lower is less than 1.2.

Abstract: A toner for developing an electrostatic charge image contains toner particles that contain a binder resin, resin particles, and a releasing agent, in which the toner has a loss coefficient tan ?(t) at 60° C. of less than 0.6, and, in cross sections of the toner particles, a proportion of an area of domains of the releasing agent present from surfaces of the toner particles to a depth of 1 ?m relative to a total area of domains of the releasing agent is 30% or more and 70% or less.

Abstract: An electrostatic image developing toner includes toner particles including a binder resin. When loss tangents tan ? at a temperature of 90° C. and a strain of 1%, a temperature of 90° C. and a strain of 50%, a temperature of 150° C. and a strain of 1%, and a temperature of 150° C. and a strain of 50%, the loss tangents tan ? being determined by measurement of dynamic viscoelasticity of the electrostatic image developing toner, are defined as D1(90), D50(90), D1(150), and D50(150), respectively, D1(90), D50(90), D1(150), and D50(150) are each 0.5 or more and 2.5 or less, D50(150)?D1(150) is less than 1.5, and D50(90)?D1(90) is less than 1.0; the toner particles further include resin particles; and the number average molecular weight of a component of the toner particles, the component being soluble in tetrahydrofuran, is 5000 or more and 15000 or less.

Abstract: A method for producing a toner for developing an electrostatic charge image includes preparing a dispersion that contains first resin particles; forming first aggregated particles at a pH of less than 7.0 by adding an aggregating agent to the dispersion so as to aggregate the first resin particles; forming second aggregated particles by adding second resin particles to the dispersion that has undergone the forming of the first aggregated particles so as to aggregate the second resin particles onto the first aggregated particles; adjusting a pH of the dispersion that has undergone the forming of the second aggregated particles to 7.0 or more so as to prepare a dispersion of aggregated particles in which aggregation of the resin particles has been terminated; adding an anionic surfactant to the dispersion having a pH adjusted to 7.

Abstract: A toner for developing an electrostatic charge image incorporates toner particles that contain binder resins including an amorphous polyester resin and a crystalline polyester resin, an ester-based release agent, and a polycondensate of a styrene-acrylic resin and a polyolefin resin. The polycondensate of styrene-acrylic and polyolefin resins has a storage modulus G?SP (70) at 70° C. of 1×104 Pa or more and 1×107 Pa or less and a storage modulus G?SP (90) at 90° C. of 1×103 Pa or more and 1×106 Pa or less in dynamic rheometry. The toner particles have a storage modulus G?T (70) at 70° C. of 1×104 Pa or more and 1×106 Pa or less and a storage modulus G?T (90) at 90° C. of 1×103 Pa or more and 1×105 Pa or less in dynamic rheometry.

Abstract: An electrostatic charge image developing toner contains toner particles that contain a binder resin, in which in a case where G?1 (90) represents a storage modulus G? of the electrostatic charge image developing toner determined by measuring dynamic viscoelasticity of the electrostatic charge image developing toner at a temperature of 90° C. and a strain of 1%, G?50 (90) represents a storage modulus G? of the electrostatic charge image developing toner determined by measuring dynamic viscoelasticity of the electrostatic charge image developing toner at a temperature of 90° C. and a strain of 50%, and G?50 (180) represents a storage modulus G? of the electrostatic charge image developing toner determined by measuring dynamic viscoelasticity of the electrostatic charge image developing toner at a temperature of 180° C. and a strain of 50%, the electrostatic charge image developing toner satisfies the following Formulas (1) to (4).

Abstract: An electrostatic charge image developing toner contains toner particles that contain a binder resin, in which each of a loss modulus G?5 (150) of the electrostatic charge image developing toner determined by measuring dynamic viscoelasticity of the electrostatic charge image developing toner at a temperature of 150° C. and a strain of 5% and a loss modulus G?50 (180) of the electrostatic charge image developing toner determined by measuring dynamic viscoelasticity of the electrostatic charge image developing toner at a temperature of 180° C. and a strain of 50% is 1×103 Pa or more and 1×104 Pa or less, and a relationship between a loss modulus G?5 (t1) of the electrostatic charge image developing toner at a first temperature t1 in a temperature range of 150° C. or higher and 180° C. or lower and a strain of 5% and a loss modulus G?50 (t2) of the electrostatic charge image developing toner at a second temperature t2 higher than the first temperature t1 in the temperature range of 150° C. or higher and 180° C.

Abstract: A toner for developing an electrostatic charge image incorporates toner particles that contain binder resins, in which: the binder resins include amorphous resins and at least one crystalline resin, the amorphous resins including amorphous resin a1 and amorphous resin a2, the crystalline resin including crystalline resin cl; and 10,000?Mw(a2)?Mw(a1)?150,000??(1), and |SP(a1)?SP(c1)|/|SP(a2)?SP(c1)|?0.9??(2), where Mw (al) is the weight-average molecular weight of amorphous resin a1, Mw (a2) is that of amorphous resin a2, SP (a1) is the solubility parameter (SP) of amorphous resin a1, SP (a2) is that of amorphous resin a2, and SP (c1) is that of crystalline resin c1.

Abstract: A toner for developing an electrostatic charge image contains toner particles containing an amorphous resin and a crystalline resin. The ratio Qs1/Qf1 is 1.1 or more and 2.0 or less, where Qf1 is the total area of all endothermic peaks detected during the first temperature rise when the toner particles are analyzed by differential scanning calorimetry after one-day storage under 50° C. conditions, and Qs1 is the total area of all endothermic peaks detected during the first temperature rise when classified toner particles are analyzed by differential scanning calorimetry after one-day storage under 50° C. conditions. The classified toner particles are a fraction of the toner particles in which toner particles having a diameter equal to or larger than the volume-average diameter D50v of the toner particles constitute 10% by number or less.

Abstract: A toner for developing an electrostatic charge image includes a binder resin. In dynamic viscoelasticity measurement, a storage modulus G?50T of the toner at 50° C. is 2×106 Pa or more and 3×108 Pa or less, a storage modulus G?100T of the toner at 100° C. is 1×104 Pa or more and 1×106 Pa or less, and tan ?T of the toner in an entire temperature range of 50° C. or more and 100° C. or less is 0.05 or more and 1.5 or less.

Abstract: An electrostatic charge image developing toner includes a polar group-containing olefin resin that is a polymer of a composition containing at least one nonpolar monomer unit (X) selected from the group consisting of ethylene and ?-olefin having 3 to 10 carbon atoms, a polar monomer unit (Y) having at least one of a maleic acid group and a maleic anhydride group, and a monomer unit (Z) having a polymerizability to at least one of the nonpolar monomer unit (X) and the polar monomer unit (Y), in which an acid value of the toner is 10 mgKOH/g to 60 mgKOH/g.

Abstract: An electrostatic charge image developing toner includes a continuous phase containing a binder resin (i); and a discontinuous phase that has a core containing a binder resin (ii) and a coating layer covering the core and containing a binder resin (iii), and is dispersed in the continuous phase.

Abstract: An electrostatic charge image developing toner includes a polar group-containing olefin resin that is a polymer of a composition containing at least one nonpolar monomer unit (X) selected from the group consisting of ethylene and ?-olefin having 3 to 10 carbon atoms, a polar monomer unit (Y) having at least one of a maleic acid group and a maleic anhydride group, and a monomer unit (Z) having a polymerizability to at least one of the nonpolar monomer unit (X) and the polar monomer unit (Y), in which an acid value of the toner is 10 mgKOH/g to 60 mgKOH/g.