Abstract: A planetary roller transmission includes: a fixed ring; a sun shaft; a plurality of planetary rollers; a carrier that has a plurality of support shafts that support the planetary rollers via bearing portions and that revolves together with the planetary rollers; and an annular flange ring provided on one side, in the axial direction, of the fixed ring and the planetary rollers. The inside diameter of the flange ring is smaller than the diameter of a circumscribed circle circumscribed by bearing portions which are arranged in the circumferential direction. An oil storage portion that receives oil that has climbed over the flange ring from the side of the planetary rollers is provided between a side surface of the flange ring and an inner wall surface of the housing. A passage that allows oil to permeate from the oil storage portion to the side of the planetary rollers is provided.

Abstract: Disclosed is a production method comprising a step of obtaining a poly(arylene sulfonium salt) comprising a terminal group including at least one functional group selected from the group consisting of a carboxy group, a hydroxy group and an amino group, and a step of dealkylating or dearylating the poly(arylene sulfonium salt) to obtain a polyarylene sulfide resin, and a polyarylene sulfide resin comprising a terminal group including a functional group obtainable by the production method.

Abstract: It is aimed to provide a press-fit terminal connection structure in which a board connecting portion of a press-fit terminal is press-fit into a through hole provided in a printed circuit board and which can combine the suppression of scraping of a surface layer and a reduction of a necessary load when the press-fit terminal is inserted into and withdrawn from the through hole and an improvement of a holding force for keeping the press-fit terminal inserted in the through hole. In the press-fit terminal connection structure, the press-fit terminal includes, at least on a surface of the contact point portion, an alloy containing layer mainly containing tin and palladium, and the through hole includes a tin layer on an outermost surface of an inner peripheral surface including at least the contact point portion.

Abstract: The present invention relates to a polyarylene sulfide resin, a method for producing the same, a poly(arylene sulfonium salt), and a method for producing the same. The production method comprises a step of obtaining a poly(arylene sulfonium salt) comprising a terminal group including at least one functional group selected from the group consisting of a carboxy group, a hydroxy group and an amino group, and a step of dealkylating or dearylating the poly(arylene sulfonium salt) to obtain a polyarylene sulfide resin, and a polyarylene sulfide resin comprising a terminal group including a functional group obtainable by the production method.

Abstract: A planetary power transmission device includes a ring member; a sun member; a first shaft disposed concentrically with the sun member and fixed to the sun member; a plurality of planetary members provided between the ring member and the sun member; support shafts configured to respectively support the planetary members such that the planetary members are rotatable; a carrier member to which the support shafts are fixed, the carrier member being configured to rotate in accordance with revolution of the planetary members along an inner peripheral surface of the ring member; a second shaft fixed to the carrier member so as to be concentric with the first shaft; and a housing configured to accommodate the ring member, the sun member, the planetary members, and the carrier member. An outer peripheral surface of the carrier member is rotatably supported by the housing via a bearing.

Abstract: A connection terminal in which alloy particles made of an intermetallic compound containing tin and palladium are exposed on an outermost surface of a contact configured to electrically contact a mating conductor and distributed on a surface of a base material at least in the contact, wherein: a tin part made of pure tin or an alloy having a higher ratio of tin to palladium than the intermetallic compound is not exposed on a plane passing through a point where a height of the alloy particles from the surface of the base material is highest.

Abstract: A planetary roller power transmission device includes: a stationary ring; a sun shaft disposed radially inside the stationary ring so as to be concentric with an axis of the stationary ring; planetary rollers provided between the stationary ring and the sun shaft so as to be pressed against them; a carrier that rotatably supports the respective planetary rollers and rotates in conjunction with revolution of the planetary rollers; an oil-containing roller configured to be in contact with a peripheral surface of each planetary roller; and a support body having a support shaft that is formed to protrude toward one side in an axial direction of the stationary ring in a cantilevered manner and rotatably supports the oil-containing roller. An axis of the support shaft is inclined such that a distal end of the support shaft is closer to the axis of the stationary ring than a base end thereof.

Abstract: The present invention relates to a method for manufacturing a polyarylene sulfide resin comprising: reacting a sulfoxide represented by the following formula (1) with a particular aromatic compound to obtain a poly(arylenesulfonium salt) having a particular constitutional unit; and dealkylating or dearylating the poly(arylenesulfonium salt) to obtain a polyarylene sulfide resin having a particular constitutional unit, wherein R1 represents an alkyl group having 1 to 10 carbon atoms, etc.; Ar1 and Ar2 each independently represent an arylene group optionally having a substituent; and Z represents a direct bond, etc.

Abstract: A one-way clutch includes multiple sprags located between an outer ring member and an inner ring member, a cage that holds the sprags such that the sprags are circumferentially spaced from each other, and a spring disposed along the cage and in contact with the sprags. The cage includes a tubular body and an annular flange. The body has multiple pockets that hold the sprags. The flange extends from an axial end of the body toward the outer ring member. A clearance is formed between the outer ring member and the flange along their entire circumference.

Abstract: The present invention relates to a method for manufacturing a polyarylene sulfide resin comprising: reacting a sulfoxide represented by the following formula (1) with a particular aromatic compound to obtain a poly(arylenesulfonium salt) having a particular constitutional unit; and dealkylating or dearylating the poly(arylenesulfonium salt) to obtain a polyarylene sulfide resin having a particular constitutional unit, wherein R1 represents an alkyl group having 1 to 10 carbon atoms, etc.; Ar1 and Ar2 each independently represent an arylene group optionally having a substituent; and Z represents a direct bond, etc.

Abstract: An electrical contact point including: a first contact and a second contact capable of forming an electrical contact each other, wherein: the first contact includes an alloy containing layer having alloy parts made of an alloy containing tin and palladium and a tin part made of tin or an alloy having a higher ratio of tin to palladium than the alloy parts with both the alloy parts and the tin part exposed on an outermost surface; and the second contact includes a dissimilar metal layer made of metal having a higher hardness than the alloy containing layer and containing neither tin nor palladium on an outermost surface.

Abstract: An axial end of an output shaft facing toward an input shaft has a first hole that is concentric with the output shaft and that axially extends to a predetermined depth. An axial end of the input shaft facing toward the output shaft has a second hole that is concentric with the input shaft and that axially extends to a predetermined depth. A connection pin is inserted in the first hole and the second hole to connect the first hole and the second hole. When the output shaft and the input shaft axially approach each other, the connection pin interposed between the output shaft and the input shaft allows the output shaft and the input shaft to avoid coming into contact with each other.

Abstract: It is aimed to provide a press-fit terminal connection structure in which a board connecting portion of a press-fit terminal is press-fit into a through hole provided in a printed circuit board and which can combine the suppression of scraping of a surface layer and a reduction of a necessary load when the press-fit terminal is inserted into and withdrawn from the through hole and an improvement of a holding force for keeping the press-fit terminal inserted in the through hole. In the press-fit terminal connection structure, the press-fit terminal includes, at least on a surface of the contact point portion, an alloy containing layer mainly containing tin and palladium, and the through hole includes a tin layer on an outermost surface of an inner peripheral surface including at least the contact point portion.

Abstract: There is provided a high gloss electrodeposited copper foil which can be manufactured in a short time. The electrodeposited copper foil has a fraction of the areas occupied by the {100} plane deviating by 18° or less from the <001> crystal orientation of 10% or more determined by analysis of the surface by electron backscatter diffraction (EBSD) and at least one surface of the electrodeposited copper foil has a glossiness Gs (20°) of 1,500 or more, determined in accordance with JIS Z 8741-1997.

Abstract: A connection terminal that includes an alloy containing layer, in which grains of an alloy part made of an alloy mainly containing tin and palladium are present in a tin part made of pure tin or an alloy having a higher tin ratio than the alloy part, wherein: both the alloy part and the tin part are exposed on an outermost surface of a contact point to be electrically brought into contact with another conductive member, and a number of the grains having an area circle equivalent diameter of 1.0 ?m or larger is 30% or higher to a total number of the grains in a grain size distribution of the grains of the alloy part on the outermost surface of the contact point.

Abstract: A planetary roller transmission includes: a fixed ring; a sun shaft; a plurality of planetary rollers; a carrier that has a plurality of support shafts that support the planetary rollers via bearing portions and that revolves together with the planetary rollers; and an annular flange ring provided on one side, in the axial direction, of the fixed ring and the planetary rollers. The inside diameter of the flange ring is smaller than the diameter of a circumscribed circle circumscribed by bearing portions which are arranged in the circumferential direction. An oil storage portion that receives oil that has climbed over the flange ring from the side of the planetary rollers is provided between a side surface of the flange ring and an inner wall surface of the housing. A passage that allows oil to permeate from the oil storage portion to the side of the planetary rollers is provided.

Abstract: A terminal fitting that can reduce the terminal insertion force and can suppress surface oxidation of a plating film, even if the terminal fitting is exposed to a hot and humid environment, and a connector that uses the terminal fitting. The terminal fitting includes a metal base material, and the plating film. The plating film includes a Ni foundation layer, an outermost layer exposed at the outermost surface, and a Ni3Sn4 layer formed between the Ni foundation layer and the outermost layer. The outermost layer includes a Sn parent phase, and intermetallic compound that is dispersed in the Sn parent phase, and is made of (Ni0.4Pd0.6)Sn4. The intermetallic compound protrudes from the lower side of the outermost layer to the Ni3Sn4 layer side, and is partially buried in the Ni3Sn4 layer. A connector includes the terminal fitting, and a housing that holds the terminal fitting.

Abstract: There is provided a master communication apparatus. A selection unit selects a representative slave from a plurality of slave communication apparatuses. A notification unit notifies the plurality of slave communication apparatuses of the representative slave. Each of the plurality of slave communication apparatuses is configured to, if it is not the representative slave, transmit state information that indicates a state of the slave communication apparatus to the representative slave. A reception unit receives the state information of the plurality of the slave communication apparatuses from the representative slave. A transmission unit transmits a control signal for controlling the plurality of slave communication apparatuses based on the state information.

Abstract: A board terminal 1 includes a base material 11 made of a metal material and a plating film 12 covering a surface of the base material 11. The plating film 12 includes an outermost layer 120 having a Sn mother phase 120a and Sn—Pd-based alloy phases 120b dispersed in the Sn mother phase 120a, the Sn mother phase 120a and the Sn—Pd-based alloy phases 120b being present on an outer surface. A Pd content in the outermost layer 120 is not more than 7 atomic %. A board connector 2 includes the board terminal 1 and a housing 20 for holding the board terminal 1.

Abstract: A terminal pair including a first terminal provided with a first contact portion and a second terminal provided with a second contact portion. The first contact portion includes a composite covering layer having a Sn—Pd based alloy phase and a Sn phase, and has a surface including the Sn—Pd based alloy phase and the Sn phase. The second contact portion includes a Cu—Sn alloy layer and a Sn layer covering part of the Cu—Sn alloy layer, and has a surface including a Cu—Sn alloy region corresponding to an exposed portion of the Cu—Sn alloy layer and a Sn region corresponding to an exposed portion of the Sn layer. A coefficient of friction for sliding movement between the first contact portion and the second contact portion is lower than a coefficient of friction for sliding movement between the two first contact portions and between the two second contact portions.