Abstract: The present disclosure provides a culture substrate for culturing stem cells, the culture substrate including a surface portion having: soft regions that extend side by side along a plurality of directions intersecting each other; and a plurality of stiff regions compartmented by the soft regions, wherein in the surface portion, the stiff regions have acute angle parts protruding toward the soft regions, and the cells can be deformed into a shape that is accommodated within the region of the stiff regions.

Abstract: In a double sash structure comprising a first sash facing to the outside and a second sash facing to the inside, a window frame of the first sash is formed of a metallic material and a window frame of the second sash, which is formed of a non-metallic material having a low heat conductivity, is disposed contiguously to the window frame of the first sash. By virtue of the low heat conductivity of the window frame of the second sash, lowering of the temperature in the room and formation of dew by condensation of moisture can be prevented. Accordingly, a double sash structure excellent in the heat-insulating property and having a beautiful appearance and an improved strength, which can be readily assembled, can be provided.

Abstract: A net jointing structure has a pair of warp-knitted net adapters for use in coupling or jointing net ends together. Each of the adapters has a net region and a web region, the net region being subdivided into at least two net sections one of which is smaller in mesh size than the other. The net section of a smaller mesh size is formed of a plurality of meshes made of warp chains and is coupled to the web region. The net section of a larger mesh size is adapted for connection with one of the net ends. The web region includes a plurality of warp chain pairs spaced uniformly along the length of the web region, the warp chain pairs being an extension of the warp chains, and the web region further including inlaid threads fastening the warp chain pairs together.

Abstract: A net jointing structure is provided for separably jointing or coupling a pair of nets together. The structure has a pair of elongate net strips each having first and second longitudinal opposite edges and having a mesh size progressively smaller toward the second edge, the first edge being formed integrally or adapted for connection with one end of each of the nets. A sliding clasp fastener includes a pair of stringers each having on and along one longitudinal edge a row of interlocking elements and secured at the other longitudinal edge to the second edge of the elongate net strip, and a slider slidably mounted on the rows of interlocking elements for coupling and uncoupling the pair of stringers.

Abstract: A slide fastener stringer tape comprising a major region made of a knitted fabric with an open, net-like texture, and a relatively narrow scoop-carrying region made of a warp-knitted fabric. The major tape region is longitudinally subdivided into several subregions of progressively finer mesh size from the one lying along one of its longitudinal edges to the one lying along the other longitudinal edge. The scoop-carrying region is arranged next to and along the finest mesh subregion of the major tape region, for supporting thereon a row of scoops of any desired type.

Abstract: A slider locking or retaining means is provided on a concealed type of zipper fastener at a top end thereof for engagement with an element-guide channel defined between a guide post and an inner side wall of the slider. The inner side wall extends substantially parallel with a longitudinal axis of the slider so that the retaining means is held in pressure engagement with the inner side wall and the guide post respectively when external lateral forces are applied to the fastener tapes. This arrangement ensures that the slider is retained in locked position relative to the fastener in its fully closed disposition.

Abstract: A continuous coupling element consists of an elongated filament of a synthetic resin or the like which is formed into a multiplicity of undulations including rows of first and second loops. A series of coupling heads are formed along one longitudinal side of the first loops, and the second loops are arranged along the other longitudinal side of the first loops. Each first loop further includes a pair of shanks which are arranged in substantially parallel spaced relationship in a plane perpendicular to the plane of the stringer tape. The general configuration of the first and second loops is such that they are held in contacting relationship at three dissimilar points for increased positional stability. The continuous coupling element can be fastened to the stringer tape by two rows of stitching, one passing over the shanks of the first loops and the other over the overlapping portions of the second loops.