Abstract: The purpose of the present invention is to provide a method for manufacturing a three-dimensionally structured member which can be made by a simpler process. The method for manufacturing a three-dimensionally structured member includes shaping a flat plate-shaped base member to produce a three-dimensionally structured member having a plurality of sections that are different from one another in thickness. The manufacturing method comprises: a mask formation step for forming a mask over the whole of at least one main surface of the base member; a mask removal step for removing a part of the mask; and an etching step for etching an exposed part of the base member wherein a combination of the mask removal step and the etching step is performed on the mask and the base member that correspond to each of the plurality of sections of the three-dimensionally structured member, in the order from thinnest to the thickest of thicknesses of the three-dimensionally structured members.

Abstract: The purpose of the present invention is to provide a method for manufacturing a three-dimensionally structured member which can be made by a simpler process. The method for manufacturing a three-dimensionally structured member includes shaping a flat plate-shaped base member to produce a three-dimensionally structured member having a plurality of sections that are different from one another in thickness. The manufacturing method comprises: a mask formation step for forming a mask over the whole of at least one main surface of the base member; a mask removal step for removing a part of the mask; and an etching step for etching an exposed part of the base member, wherein a combination of the mask removal step and the etching step is performed on the mask and the base member that correspond to each of the plurality of sections of the three-dimensionally structured member, in the order from thinnest to the thickest of thicknesses of the three-dimensionally structured members.

Abstract: A laminated nonwoven fabric includes first to third nonwoven fabrics and an adhesive sandwiched between at least the second nonwoven fabric and the third nonwoven fabric. The second nonwoven fabric contains second fibers and is laminated on the first nonwoven fabric containing first fibers, and the third nonwoven fabric contains third fibers and is laminated on the second nonwoven fabric on an opposite side to the first nonwoven fabric. An average fiber diameter of the first fibers is larger than that of the second fibers. The second nonwoven fabric has first and second regions which exist mixedly with each other, and a density of the second fibers in the second region is lower than that in the first region. A part of the adhesive is present between a portion of the first nonwoven and a portion of the third nonwoven fabric which face the second region.

Abstract: A nonwoven fabric contains a plurality of fibers having average fiber diameter Dave in a range from 10 nm to 3 ?m, inclusive. The nonwoven fabric has a plurality of fusion portions among the plurality of fibers. The nonwoven fabric has a first principal surface and a second principal surface on an opposite side to the first principal surface. Average number Nh of the fusion portions observed per 500 ?m2 on the first principal surface is six or more.

Abstract: A laminated nonwoven fabric (NF) includes a first NF containing first fibers and a second NF containing second fibers and laminated on the first NF, and has a cut-off edge at an end thereof. An average diameter of the first fibers is larger than that of the second fibers not more than 3 ?m. 50% by mass to 70% by mass, inclusive, of the second fibers satisfy x?y, and 5% by mass to 30% by mass, inclusive, thereof satisfy x<y/2. “x” is a vector component in a direction (X axis direction) of the cut-off edge, and “y” is a vector component in Y axis direction perpendicular to X axis and parallel to a principal surface of the laminated NF. When the second NF is viewed from Z axis direction perpendicular to X and Y axes, at least some of the second fibers satisfying x<y/2 overlap the second fibers satisfying x?y.

Abstract: A laminated nonwoven fabric includes a first nonwoven fabric and a second nonwoven fabric. The first nonwoven fabric contains charged first fibers. The second nonwoven fabric contains second fibers, and is laminated on the first nonwoven fabric. A fiber diameter of the first fibers is larger than a fiber diameter of the second fibers.

Abstract: A filtering medium includes a nonwoven fabric and a first electrode having an input terminal of power. The first electrode is provided on a surface of the nonwoven fabric. Alternatively, in a case where the nonwoven fabric has a plurality of fiber layers, the first electrode may be provided between the fiber layers. An air purifier includes the filtering medium disposed between a sucker and a discharger of a gas, and an output terminal via which power is output to the first electrode of the filtering medium.

Abstract: A nonwoven fabric contains a plurality of fibers having average fiber diameter Dave in a range from 10 nm to 3 ?m, inclusive. The nonwoven fabric has a plurality of fusion portions among the plurality of fibers. The nonwoven fabric has a first principal surface and a second principal surface on an opposite side to the first principal surface. Average number Nh of the fusion portions observed per 500 ?m2 on the first principal surface is six or more.

Abstract: The present disclosure provides an electrode for an electrolysis device, which allows performance of a catalyst to be efficiently exhibited in an electrochemical reaction of reducing an electrolysis reactant to generate an electrolysis product material. Specifically, a carbon fiber that has a structure in which the carbon fiber contains a part of and/or a whole of a catalyst particle is used as a cathode electrode to greatly improve adherence force of the catalyst particle and enable efficient generation of an electrolysis product material.

Abstract: A laminated nonwoven fabric includes first to third nonwoven fabrics and an adhesive sandwiched between at least the second nonwoven fabric and the third nonwoven fabric. The second nonwoven fabric contains second fibers and is laminated on the first nonwoven fabric containing first fibers, and the third nonwoven fabric contains third fibers and is laminated on the second nonwoven fabric on an opposite side to the first nonwoven fabric. An average fiber diameter of the first fibers is larger than that of the second fibers. The second nonwoven fabric has first and second regions which exist mixedly with each other, and a density of the second fibers in the second region is lower than that in the first region. A part of the adhesive is present between a portion of the first nonwoven and a portion of the third nonwoven fabric which face the second region.

Abstract: A laminated nonwoven fabric includes a first nonwoven fabric containing first fibers, a second nonwoven fabric laminated on the first nonwoven fabric and containing second fibers, a third nonwoven fabric laminated on the second nonwoven fabric on an opposite side to the first nonwoven fabric and containing third fibers, and an adhesive containing a plurality of particles. Some of the plurality of particles of the adhesive is attached to the second nonwoven fabric. At least one of the first nonwoven fabric and the third nonwoven fabric is adhered to the second nonwoven fabric via the some of the plurality of particles of the adhesive. An average fiber diameter of the first fibers is larger than the average fiber diameter of the second fibers, and an average particle diameter of the plurality of particles of the adhesive is smaller than the average fiber diameter of the first fibers.

Abstract: A nonwoven fabric includes a fiber including a first portion and a second portion connected to the first portion. A first fiber diameter of the first portion is smaller than a reference fiber diameter. A second fiber diameter of the second portion is equal to or greater than the reference fiber diameter. The reference fiber diameter is smaller than 1 ?m. A ratio of a maximum fiber diameter of the second portion to a length of a linear line connecting both end portions of the second portion is from 1/10 to 1/3.

Abstract: A filtering medium includes a nonwoven fabric and a first electrode having an input terminal of power. The first electrode is provided on a surface of the nonwoven fabric. Alternatively, in a case where the nonwoven fabric has a plurality of fiber layers, the first electrode may be provided between the fiber layers. An air purifier includes the filtering medium disposed between a sucker and a discharger of a gas, and an output terminal via which power is output to the first electrode of the filtering medium.

Abstract: A laminated nonwoven fabric (NF) includes a first NF containing first fibers and a second NF containing second fibers and laminated on the first NF, and has a cut-off edge at an end thereof. An average diameter of the first fibers is larger than that of the second fibers not more than 3 ?m. 50% by mass to 70% by mass, inclusive, of the second fibers satisfy x?y, and 5% by mass to 30% by mass, inclusive, thereof satisfy x<y/2. “x” is a vector component in a direction (X axis direction) of the cut-off edge, and “y” is a vector component in Y axis direction perpendicular to X axis and parallel to a principal surface of the laminated NF. When the second NF is viewed from Z axis direction perpendicular to X and Y axes, at least some of the second fibers satisfying x<y/2 overlap the second fibers satisfying x?y.

Abstract: A laminated nonwoven fabric includes a first nonwoven fabric and a second nonwoven fabric. The first nonwoven fabric contains charged first fibers. The second nonwoven fabric contains second fibers, and is laminated on the first nonwoven fabric. A fiber diameter of the first fibers is larger than a fiber diameter of the second fibers.

Abstract: A non-woven fabric includes nanofibers which contain a polymer and inorganic particles, the nanofibers being formed by an electrospinning method. The inorganic particles contain first particles and second particles, some parts of which are exposed from a surface of the polymer. A volume V1o of a portion of the first particles exposed from the surface of the polymer and a volume V1i of a portion buried in the polymer satisfy a relationship of V1o<V1i, a volume V2o of a portion of the second particles exposed from the surface of the polymer and a volume V2i of a portion buried in the polymer satisfy a relationship of V2o?V2i and an average number N1 of the first particles and an average number N2 of the second particles per unit length of the nanofibers satisfy a relationship of N1>N2.

Abstract: A nonwoven fabric includes a fiber including a first portion and a second portion connected to the first portion. A first fiber diameter of the first portion is smaller than a reference fiber diameter. A second fiber diameter of the second portion is equal to or greater than the reference fiber diameter. The reference fiber diameter is smaller than 1 ?m. A ratio of a maximum fiber diameter of the second portion to a length of a linear line connecting both end portions of the second portion is from 1/10 to ?.

Abstract: A nonwoven fabric includes a nanofiber. The nanofiber includes a core portion and a sheath portion covering at least a part of a surface of the core portion. The core portion includes a first polymer. The sheath portion includes a second polymer. The second polymer is smaller in polarity than the first polymer.

Abstract: The objective of the present invention is to manage reference movies using an index file, without causing the user to be perplexed. The reference movies are generated because of, for instance, the upper limit of the file size. The index file manages sets of information regarding the files being managed. Examples of these sets of information are information for determining whether or not a file is presented to the user, information for determining whether or not a file is original, and information indicating whether or not nondestructive editing has been done. Based on such information, the erasure, displaying a list, and so on are carried out. Thus, it is possible to manage the reference movies using the index file, without causing the user to be perplexed.

Abstract: A battery includes a positive electrode, a negative electrode, a separator interposed therebetween, and an electrolyte. The separator includes a plurality of nanofibers and has a form of a sheet having a first surface and a second surface opposite thereto. When the average maximum fiber diameter of the nanofibers in the plane direction of the separator is compared between in vicinities of the first and second surfaces and at a center portion in the thickness direction of the separator, average maximum fiber diameters Ds1 and Ds2 of the nanofibers in the vicinity of the first and second surfaces are smaller than an average maximum fiber diameter Dc of the nanofibers at the center portion in the thickness direction of the separator.