Abstract: When forming a toothed portion on the outer section of a blank by contacting a tooth profile-forming portion of a forming die with a curved portion of the blank, the first projection of the blank is accommodated in a first depression, and a load is applied axially to a center section of the blank so a material of the blank flows radially outward. The material of the blank at the first projection flows in the axial direction to inside the first depression, and the material of the blank at an intermediate section between the center and the outer section flows in axially to inside a second depression to form a second projection. When the load is maximized, a space is provided between a toothed portion and the tooth profile-forming portion, between the first projection and the forming die, and between the second projection and the forming die.

Abstract: When forming a toothed portion on the outer section of a blank by contacting a tooth profile-forming portion of a forming die with a curved portion of the blank, the first projection of the blank is accommodated in a first depression, and a load is applied axially to a center section of the blank so a material of the blank flows radially outward. The material of the blank at the first projection flows in the axial direction to inside the first depression, and the material of the blank at an intermediate section between the center and the outer section flows in axially to inside a second depression to form a second projection. When the load is maximized, a space is provided between a toothed portion and the tooth profile-forming portion, between the first projection and the forming die, and between the second projection and the forming die.

Abstract: A production process of a film roll according to the present invention includes a step of melt-extruding and cooling wherein polyamide based resin is melt-extruded and cooled in a sheet form onto a movable cooling material surface to obtain an unstretched sheet; a step of biaxial stretching wherein an unstretched sheet is stretched biaxially in the longitudinal direction and the transverse direction; and a winding-up step of taking up the biaxially stretched film in a roll form. And in the step of melt-extruding and cooling, corona discharge in a streamer corona state is performed between an electrode applied with high dc voltage and the polyamide based resin sheet in the melted state, and sufficient electric charges that enable the polyamide based resin sheet in the melted state to come in close contact with the movable cooling material surface are imparted.

Abstract: The present invention provides a process for production of a polyamide based resin film roll comprising a step of melt-extruding and cooling wherein polyamide based resin is melt-extruded and cooled in a sheet form onto a mobile cooling material surface to obtain an unstretched sheet; a step of biaxial stretching wherein an unstretched sheet is stretched biaxially in the longitudinal direction and the transverse direction; and a step of winding up the biaxially stretched film that is biaxially stretched in a form of roll. Then, in the step of melt-extruding and cooling polyamide based resin onto a mobile cooling material surface, corona discharge in a streamer corona state is performed between an electrode applied with high DC voltage and the polyamide based resin sheet in the melted state, and sufficient electric charges that enable the polyamide based resin sheet in the melted state to come in close contact with the mobile cooling material surface are imparted.

Abstract: Full-length cDNAs of plants and their uses are provided. Source plants are preferably monocot plants, more preferably poaceous plants, and most preferably rice. Vectors carrying said cDNAs and transformants containing said cDNAs or said vectors, transgenic plants containing said transformants, polypeptides encoded by said cDNAs are also provided. The full-length cDNA clones play important roles in the annotation of correct gene coding region, determination of exons and introns, comprehensive expression analysis on the transcription level and proteome analysis. Furthermore, full-length cDNA clones are industrially useful in producing plants having different properties from those of the wild type due to the inhibition of expression and functional suppression in plant bodies.