Abstract: A hollow fiber membrane module includes: a tubular case; a hollow fiber membrane bundle; and a pair of sealing and fixing portions, in which an outside-membrane channel that passes by an outer wall of each of the hollow fiber membranes and an inside-membrane channel that passes through the hollow inside of each of the hollow fiber membranes are formed, moist air flows through the outside-membrane channel, and dry air flows through the inside-membrane channel, whereby moisture in the moist air is supplied to the dry air by a membrane separation effect of the hollow fiber membranes, wherein a plurality of spaces are disposed between the case inner wall and the hollow fiber membrane bundle, and a restriction portion that restricts the hollow fiber membrane from entering into the spaces is partially disposed between the hollow fiber membrane bundle and each of the spaces.

Abstract: A gasket includes a gasket body formed of a metal plate and provided with at least two locking hook portions formed to project from the gasket body and abut against side wall surfaces adjacent to a counter sealing surface. The locking hook portions include curved portions at distal end portions of the respective locking hook portions abutting against the side wall surfaces, at least one of the locking hook portions being formed to be bent toward an inside of the gasket body such that an angle made with the gasket body is an acute angle, and press the curved portions against the side wall surfaces by spring force of the locking hook portion bent at the acute angle, allowing the gasket body to hold itself on the counter sealing surface.

Abstract: Shock-absorbing stopper for preventing an elastic body from contacting a mating component, to cause sliding wear in a structure having a hollow in an outer peripheral surface. The stopper has a cylindrical elastic body, to which a fixed-side metal fitting is connected and to which a movable-side metal fitting is connected and an annular hollow in the outer peripheral surface, in which the stopper is sectioned into three portions by the hollow of a small diameter portion formed by the hollow, a fixed-side large diameter portion located closer to the fixed side, and a movable-side large diameter portion located closer to the movable side. The outer diameter dimension of the movable-side large diameter portion is smaller than the outer diameter dimension of the fixed-side large diameter portion and the axial width of the movable-side large diameter portion is smaller than the axial width of the fixed-side large diameter portion.

Abstract: A rubber composition is, in particular, suitable for producing a sealing part for a high pressure hydrogen apparatus having excellent low temperature sealing properties and blister resistance, and the sealing part for a high pressure hydrogen apparatus is obtained by using the rubber composition. A rubber composition includes an ethylene/butene/ethylidene norbornene terpolymer (EBENB), and the rubber composition is for use in producing a sealing part for a high pressure hydrogen apparatus.

Abstract: A seal has a ring-like shape and configured to seal off internal space under a pressure of carbon dioxide gas from external space. The seal is a single structure being a combination of a first material and a second material. The first material is superior in heat resistance to the second material. The second material is superior in gas barrier function to the first material.

Abstract: The present disclosure provides an ethylene acrylate rubber composition which has all of oil resistance, heat resistance and hydrolysis resistance with good balance after molding and cross-linking, and a molded article formed of a cross-linked substance of the ethylene acrylate rubber composition. The ethylene acrylate rubber composition contains 100 parts by mass of an ethylene acrylate rubber, 10 to 50 parts by mass of a plasticizer with an SP value of 7 or more and 0.05 to 30 parts by mass of a cross-linking agent selected from polyvalent aliphatic primary amine or derivatives thereof. The content of a plasticizer with an SP value of less than 7 in the ethylene acrylate rubber is less than 0.1 parts by mass. Further, a molded article formed of a cross-linked product of the ethylene acrylate rubber composition is provided.

Abstract: A sealing device includes: an annular seal that is disposed on an outer periphery of a rod of a hydraulic cylinder further on a side of an extending direction than a cylinder head of the hydraulic cylinder and that has a pair of opposing first facing surfaces; a holding member disposed on an outer periphery of the seal; and a fixing member disposed on an outer periphery of the holding member, the fixing member having a tapered inner surface that contacts an outer surface of the holding member and that has an inner diameter increasing toward a retracting direction.

Abstract: A liquid injection attachment is provided that includes an attachment body having an insertion opening into which a liquid injecting implement is inserted and a liquid flow outlet; a gasket mounting portion formed on the periphery on the front end side of the attachment body; and a gasket mounted to the gasket mounting portion and brought into close contact with the peripheral portion of the liquid flow outlet, wherein the gasket mounting portion has an engaging recess and/or engaging protrusions, the gasket has an engaging protrusion 19 and/or engaging recesses, and the engagement direction thereof is in a direction toward a central axis of the attachment body.

Abstract: A sealing device for sealing between a valve body which is movably disposed in a valve box and which controls the flow of a fluid, and a tube which is connected to the valve box or is a part of the valve box and through which the fluid flows, is provided. The sealing device includes: a first seal portion which is a resin annular plate or film and is to be closely contacted with the outer surface of the valve body; and a cylindrical second seal portion which is formed from a material more flexible than that of the first seal portion, contacts the inner outer surface of the tube, and prevents the fluid from leaking from the tube. The first seal portion and the second seal portion are integrally joined. A flange joined to the first seal portion is formed on an edge of the second seal portion.

Abstract: There are provided a sealing device and a hub bearing that can reduce torque. Pear-skin-like projections and depressions are provided on each of a sliding surface in a lip for foreign object (a side lip 121a and a middle lip 121b) and a sliding surface in a lip for grease 122. Roughness of the pear-skin-like projections and depressions provided on the sliding surface of the lip for grease 122 is larger than roughness of the pear-skin-like projections and depressions provided on the sliding surface of the lip for foreign object.

Abstract: A fluororubber composition comprising 10 to 50 parts by weight of wollastonite and 0.5 to 10 parts by weight of organic peroxide based on 100 parts by weight of peroxide-crosslinkable fluororubber, the wollastonite being needle-like or fibrous wollastonite having an average fiber diameter of 5 ?m or less and an average fiber length of 40 to 80 ?m, and the wollastonite being surface-treated with an amino silane coupling agent or an epoxy silane coupling agent. The fluororubber composition that can be suitably used as, for example, a molding material for normal/reverse rotation oil seals that allow continuous excellent sealing of fluid in the operation of normal and reverse rotation.

Abstract: An object of the present invention is to provide a bioelectrode, which can stably measure biological information and is suitable for repeated use, and a method of manufacturing the bioelectrode. This object is solved by a bioelectrode comprising a silver coating layer provided on a conductive silicone rubber electrode, wherein the conductive silicone rubber electrode is composed of a silicone rubber containing conductive carbon particles, the silver coating layer is composed of silicone rubber and at least one of agglomerated silver powder and flake-like silver powder, and the silver coating layer has a thickness of 18 ?m to 80 ?m, and, preferably, in which the silver powder contains both the agglomerated silver powder and the flake-like silver powder.

Abstract: A sealing device that is applicable to high-speed rotation applications and has an increased pressure resistance is provided. The sealing device includes: a first side discharge valve located on a first side, on which a fluid is to be sealed, of an outer circumferential sealing surface, the first side discharge valve extending radially outward toward the first side for allowing a gas in a space between an inner circumferential surface of a housing and an outer circumferential sealing surface to be discharged toward the first side while blocking a gas from entering the space from the first side; and a second side discharge valve located on an atmosphere side that is opposite to the first side with respect to the outer circumferential sealing surface, the second side discharge valve extending radially outward toward the atmosphere side for allowing the gas in the space to be discharged toward the atmosphere side while blocking a gas from entering the space from the atmosphere side.

Abstract: The obtained hollow fiber membrane has high water permeability, and has, when used as a humidifying membrane, a linear relationship between supply humidity and humidification amount. Therefore, the hollow fiber membrane is effectively used, for example, as a humidifying membrane for fuel cells. The method for producing a polyphenylsulfone hollow fiber membrane according to present invention can provide a humidifying membrane that suppresses segregation and crosslinking of hydrophilic polymers associated with the operation of the humidifying membrane, and that prevents the deterioration of humidification performance due to the operation. In addition, the producing method of the present invention can produce a polyphenylsulfone hollow fiber membrane for humidifying membranes, wherein the hollow fiber membrane has high water permeability, and has, when used as a crosslinked humidifying membrane, a linear relationship between water vapor supply humidity and humidification amount.

Abstract: The seal ring is annular around an axis x and includes an annular outer peripheral surface facing an outer periphery side, and a plurality of recessed parts. The recessed parts are formed in such a way as to be spaced apart from each other in a circumferential direction and are recessed from the outer peripheral surface toward an inner periphery side. The recessed parts expand, in the axis x direction, from one side surface to a position which does not reach another side surface. The outer peripheral surface includes a annular contact surface between the another side surface and the position, and rib surfaces respectively between mutually neighboring recessed parts in the circumferential direction. Each of the rib surfaces extends between the one side surface and the position in the axis x direction.

Abstract: Provided is a structure in which an inserted article is easily inserted and a product is easily released from a die after molding. The structure includes a positioning mechanism which is vertically arranged on one split die, includes a positioning pin having a tapered distal end, and positions the inserted article by engaging the inserted article with the positioning pin, a stop mechanism that has a spring means assembled with the one split die and a stopper portion held by the spring means, and temporarily stops movement of the other split die when the other split die comes into contact with the stopper portion at the time of mold clamping, and a pressing mechanism that has a spring assembled with the other split die, a pusher pin, a spring assembled with the one split die, and a pusher pin, and elastically presses the inserted article by the pusher pin.

Abstract: A coating agent for oil seal comprising 10 to 160 parts by weight of a filler having a particle size of 0.5 to 30 ?m based on 100 parts by weight of isocyanate group-containing 1,2-polybutadiene and being prepared as an organic solvent solution, wherein a contact angle between a substrate surface coated with the coating agent and engine oil is less than 35°. The coating agent can improve wettability with oil and reduce dynamic friction coefficient in oil, while increasing the roughness of the coating surface. Thus, low torque characteristics can be achieved, while maintaining excellent seal performance inherent in oil seal.

Abstract: A sealing apparatus includes a reinforcing ring, an elastic body portion formed of an elastic body having conductivity, and a conductive grease. The elastic body portion includes a base portion, a lip portion which extends from the base portion, and a tension force applying member which is an elastic member in an annular shape. The tension force applying member is mounted on an outer peripheral side of the lip portion at a lip tip end portion to apply a tension force which presses a lip contact end against an outer peripheral surface of a shaft. The conductive grease is applied to at least a portion of an inner peripheral surface of the elastic body portion which faces an inner periphery side.

Abstract: A millimeter-wave radar cover housing a millimeter-wave radar including an antenna and an electronic circuit configured to drive the antenna includes: a first site provided in front of the millimeter-wave radar to protect the millimeter-wave radar and transmit millimeter waves emitted from the antenna; and a second site including a housing space in which the antenna and the electronic circuit except for the first site are housed. The first site is made of a stacked structural body obtained by stacking at least one layer of a first constituent material having a negative relative permittivity in the frequency band of the millimeter waves and a second constituent material having a positive relative permittivity in the frequency band of the millimeter waves, and the stacked structural body is curved in a convex shape in a direction centered at an emission source of the millimeter electromagnetic waves and departing from the emission source.

Abstract: A sealing device includes: a housing; a seal ring configured to be axially displaceably inserted along an inner circumference of the housing, the seal ring including a front-end surface and a rear-end surface which defines packing mounting space; a packing configured to establish sealing between the housing and the seal ring, the packing being disposed in the packing mounting space; and spring means disposed on the rear-end surface side of the seal ring to elastically bias the seal ring toward the front-end surface side.