Abstract: A conductive member for electrophotographic equipment includes an elastic layer and a surface layer formed on the outer peripheral surface of the elastic layer. Multiple convex units are formed on the outer peripheral surface of the surface layer, and a tip of the convex unit is formed of a curved surface. A height of the convex unit is 1.0 nm or more and 10 nm or less, a width of the convex unit is 1.0 nm or more and 100 nm or less, and the size of the width of the convex unit relative to an interval between the convex units is 0.5 or more and 1.5 or less.

Abstract: In a charging roll, at least one groove extending in a direction within ±46° relative to a circumferential direction is regularly formed in an axial direction on an outer peripheral surface of an elastic body layer. The groove has a width of 4 to 30 ?m and a depth of 2 to 12 ?m. A planar part being a portion of the outer peripheral surface of the elastic body layer other than the groove has a width of 4 to 30 ?m. A specific relationship is present between an angle of the direction in which the groove extends relative to the circumferential direction and a ratio of the width of the groove to the width of the planar part. The surface layer includes a binder polymer and roughness forming particles. The roughness forming particles are respectively arranged on the planar part and the groove.

Abstract: A tubular vibration isolation device for a motor mount includes an inner shaft member and an outer tubular member that are connected by a main body rubber elastomer. The main body rubber elastomer includes rubber legs that extend from the inner shaft member toward the outer tubular member to connect the inner shaft member and the outer tubular member to each other. The rubber leg is provided with vibration damping protrusions that protrude on a surface and are located at an intermediate portion separated from both the inner shaft member and the outer tubular member in a connecting direction. The vibration damping protrusions are disposed in parallel and separated from each other in the connecting direction of the rubber leg.

Abstract: A charging roll for an electrophotographic apparatus includes a shaft body and an elastic body layer formed on an outer circumferential surface of the shaft body. The elastic body layer contains (a) to (c) below: (a) a hydrin rubber with a chlorine content of 14% or more and 19% or less; (b) an ionic conductive agent; and (c) a salt of a cyclic amidine compound. The hydrin rubber includes a crosslinking agent which is a sulfur crosslinking agent or a peroxide crosslinking agent.

Abstract: A microphysiological system device (1) includes: a container (2) in which a plurality of functional units (6a to 6d) is placed in a replaceable manner, and a channel member (3) disposed on a front side of the container (2) and defining at least part of a channel (33a, 33b) that causes the plurality of functional units (6a to 6d) placed in the container (2) to communicate with each other.

Abstract: A preparation method of a test piece 100 with respect to an axle beam bush formed of metal and rubber with different material properties includes: setting a predetermined region S, so that a surface area of a portion exposed to a heat source at a predetermined position and having a lowest flame resistance is maximized in an actual use state of the axle beam bush; calculating the surface area ratio of each member in the region; and preparing the test piece 100 by using a metal member 103 and a rubber member 104 as materials same as respective members in the region, so that the metal member 103 and the rubber member 104 are exposed at ratios same as the calculated surface area ratios.

Abstract: An antivibration device includes a bracket fixed to an antivibration connection target member. A positioning member attached to an attachment hole of the bracket includes a positioning protruding portion inserted into a positioning hole of the antivibration connection target member and positioning the bracket; and a cylindrical attachment portion protruding from the positioning protruding portion and inserted into the attachment hole. The attachment portion has a locking claw protruding toward the outer periphery. The positioning member is positioned with respect to the bracket by sandwiching a peripheral edge portion of the attachment hole between the positioning protruding portion and the locking claw. The peripheral edge portion of the attachment hole has a protrusion that protrudes in the penetrating direction of the attachment hole to adjust and set the thickness of the peripheral edge portion.

Abstract: A stabilizer bushing for elastically holding a stabilizer bar in position in a vehicle and including a bushing body made of a tubular elastic body. The bushing body includes a linear portion on an inner circumferential surface. The linear portion is to be in close contact with an outer circumferential surface of the stabilizer bar. A rigid pedestal member is arranged in an attachment-side portion of the bushing body. The attachment-side portion is to be attached to a vehicle body side. An inside surface of the pedestal member that is in close contact with the bushing body includes an axial convex surface protruding gradually inward from both axial ends toward an axial center across an entire axial length in a portion located on a radially outer side of the linear portion, and a circumferential concave surface curving in a circumferential direction.

Abstract: A conveying belt has a cylindrical base layer, and a surface layer that is formed on the outer peripheral surface of the base layer. The base layer contains polyimide or polyamide-imide, and has an elastic modulus from 3-7 GPa, inclusive. The surface layer is configured as a cured object from a resin composition that contains a fluororesin having a hydroxy group, an isocyanate curing agent, and a silicone copolymer. The silicone copolymer is a copolymer containing a silicone unit and another kind of unit not having a siloxane skeleton, has a hydroxy group, and contains siloxane units in a proportion of at least 95 mol % and less than 100 mol %, or from 40-70 mol %, inclusive. The silicone copolymer content in the resin composition is 1-5 parts by mass, inclusive, relative to a total 100 parts by mass of the fluororesin and the isocyanate curing agent.

Abstract: An elastic link comprising a first sleeve and a second sleeve. The first sleeve comprises a first elastic body, a first inner armature surrounded by the first elastic body, and a first outer armature surrounding the first elastic body. The second sleeve comprises a second elastic body, a second inner armature surrounded by the second elastic body, and a second outer armature surrounding the second elastic body. The first elastic body and the second elastic body presenting different elastic behaviors. This constitutes an improved elastic link.

Abstract: A tubular vibration damping device includes an inner shaft member and an outer tube member connected by a main body rubber elastic body. The inner shaft member is provided with a large-diameter part having an outer diameter dimension that is configured to be large at an axial middle portion. The main body rubber elastic body is provided with a through hole penetrating in an axial direction and extending for a predetermined length in a circumferential direction. The through hole has circumferentially opposing inner surfaces at least one of which is provided with an inclined surface that expands such that a circumferentially opposing surface distance gradually increases toward an axial opening part of the through hole.

Abstract: A soundproof member is capable of being lightweight and simplifying the manufacturing process. The soundproof member which covers an object includes a sound absorbing body molded from foamed resin and a cover body molded from foamed resin. Multiple fitting concave units are provided on a circumferential side surface of the sound absorbing body, and multiple fitting convex units are provided on a side wall of the cover body. The sound absorbing body and the cover body are integrated by fitting the fitting concave units and the fitting convex units.

Abstract: A belt member 10 for an electrophotographic apparatus has: a surface layer 14 provided on an outer circumferential surface of a tubular base layer 12, the surface layer serving as a cured resin composition including: for 100 parts by mass of a fluorine resin having a hydroxyl group, 10 or more and 30 or less parts by mass or less of an isocyanate curing agent having isocyanate groups at both ends and having a molecular weight of 600 g/mol or more and 4000 g/mol or less or 5 or more and 18 or less parts by mass of an isocyanate curing agent having an isocyanate group at a single end; and 5 or more and 10 or less parts by mass of a fluorine-based surfactant, and 1.0 or more and 5 or less parts by mass of a silane coupling agent having an amino group or an isocyanate group.

Abstract: A soundproof heat-dissipation cover (3) that covers a target object (2), and includes a heat-dissipation contact surface (10) having a contact part (12) contacting the target object (2). The density is 0.1 g/cm3 to 2.0 g/cm3, the thermal conductivity is 0.1 W/m to 2.0 W/mK, and the maximum height roughness (Rz) of the heat-dissipation contact surface (10) is 50 ?m to 300 ?m. With an air layer formed between the surface of the target object (2) and the heat-dissipation contact surface (10) of the soundproof heat dissipation cover (3), the contact area between the surface of the target object (2) and the heat-dissipation contact surface (10) of the soundproof heat-dissipation cover (3) can be reduced, the vibration received by the soundproof heat-dissipation cover (3) from the surface of the target object (2) can be suppressed, and the secondary radiation sound from the soundproof heat-dissipation cover (3) can be suppressed.

Abstract: A tubular vibration-damping device including an inner shaft member and an outer tube member connected by a main rubber elastic body. The outer tube member is configured to be slidably inserted in an attachment tube in an axial direction, and is circumferentially divided so as to be radially deformable or displaceable. A pair of tighteners are disposed on axially opposite sides of the main rubber elastic body. The main rubber elastic body is fastened to an inner circumferential surface of the outer tube member. An adjustment elastic body against which the tighteners are pressed is integrally formed with axially opposite side portions of the main rubber elastic body. Sliding resistance in the axial direction between an outer circumferential surface of the outer tube member and an inner circumferential surface of the attachment tube is settable depending on a pressing force of the tighteners against the adjustment elastic body.

Abstract: An electrostatic transducer (1) includes: an insulator sheet (11); a first electrode sheet (12); a lead (30); a first bonding part (61), electrically bonding the first electrode sheet (12) with a core wire (30a) of the lead (30) in a first area (Pa) where the first electrode sheet (12) and the core wire (30a) of the lead (30) are disposed overlapping each other; and a second bonding part (62), bonding the insulator sheet (11) with a coating (30b) of the lead (30) in a second area (Pb) where the insulator sheet (11) and the coating (30b) of the lead (30) are disposed overlapping each other.

Abstract: A flame-retardant soundproofing material for vehicles includes a polyurethane foam obtained by foam-molding a urethane resin composition. The urethane resin composition includes an isocyanate component (A), a polyol component (B), a flame-retardant plasticizer (C), and an antioxidant (D). The isocyanate component (A) includes a mixture of 2,4?-diphenylmethane diisocyanate and 4,4?-diphenylmethane diisocyanate, and one or more modified products selected from a carbodiimide-modified product and a uretonimine-modified product of at least one of 2,4?-diphenylmethane diisocyanate and 4,4?-diphenylmethane diisocyanate of the mixture.

Abstract: Mold used to manufacture a gasket member includes a first mold, second mold, and plate-shaped substrate clamped between the first and second molds. The first mold includes circumferential groove that opens to a bottom surface of the first mold and forms a cavity, injection groove that opens to the bottom surface and connects to the cavity at first location of the circumferential groove, injection hole having a lower end opens into the injection groove and upper end extends to top surface of the first mold, exhaust groove that opens to the bottom surface and connect to the cavity at a second location of the circumferential groove, and exhaust hole having lower end connect into the exhaust groove and an upper end extends to the top surface of the first mold. The elastic material is injected and filled into the cavity to form the gasket member.

Abstract: Provided is a charging roll for electrophotographic equipment with which any increase in resistance and any bleeding of ionic electroconductive agent while energization persists can be minimized. A charging roll 10 for electrophotographic equipment, the charging roll 10 comprising a shaft body 12 and an elastic layer 14 that is formed on the outer peripheral surface of the shaft body 12, the elastic layer 14 being a crosslinked article of a rubber composition containing the following components (a) to (e). (a) One or more selected from hydrin rubber and nitrile rubber, (b) a crosslinking agent, (c) an ionic electroconductive agent, (d) one or more selected from piperidinyloxy radical compounds and phenolic antioxidants, and (e) one or more selected from salts of cyclic amidine compounds and thiophthalimide compounds.

Abstract: A soundproof heat-dissipating cover covering a target object includes: a sound-absorbing heat-dissipating sheet including a covering surface covering a surface of the target object and a heat-dissipating surface on a side opposite to the covering surface; and a reinforcing member covering the sound-absorbing heat-dissipating sheet from a heat-dissipating surface side of the sound-absorbing heat-dissipating sheet. The sound-absorbing heat-dissipating sheet further includes: a pair of first mounting parts, and a heat-dissipating region formed between the pair of first mounting parts. The heat-dissipating surface in the heat-dissipating region is formed with ridges arranged side by side at an interval. The reinforcing member includes: a pair of second mounting parts respectively mounted to the pair of first mounting parts; and a bridging part bridging between the pair of second mounting parts and having through-holes.