Abstract: Removable denture data of a removable denture is produced, and disk frame data of a disk frame in which the removable denture is accommodated is produced, thereby building the disk frame based on the disk frame data. Next, a resin disk in which artificial teeth are embedded is produced by arranging the artificial teeth in the disk frame and curing a base resin, and a denture base is milled by milling the resin disk based on the removable denture data, thereby manufacturing the removable denture in which a base side of the artificial teeth is embedded in the denture base. As a result, artificial teeth having an excellent aesthetics may be used, it is possible to firmly join the artificial teeth and the denture base to each other, and it is possible to manufacture a removable denture with a favorable restoration accuracy of the artificial teeth.

Abstract: An object is to provide an artificial tooth that can be attached to a denture base designed by CAD/CAM to be formed easily and accurately when the artificial tooth is arranged on the denture base. In an artificial tooth (21) that has a shape corresponding to a denture base that is designed on CAD based on three-dimensional data and is cut out, a regulator (21a to 21h) that regulates the rotation on the axis of the tooth as the center is provided for a portion to touch the denture base, and the regulator has a shape so as not to engage with the denture base in the direction of the axis of the tooth.

Abstract: A sheet cutting device includes a conveyance unit configured to convey a sheet, a cutting unit configured to cut the sheet conveyed by the conveyance unit, and a conveyance belt configured to convey a cut piece cut from the sheet cut by the cutting unit in a direction orthogonal to a conveyance direction of the conveyance unit.

Abstract: Provided is a method for creating a color scale that can be used as more objective assessment criteria used for the evaluation of the masticatory force by a color-changeable chewing gum by analyzing the characteristics of the color change in the gum along with the progress in mastication in people having toothed jaws. A method for creating a color scale, comprising having a plurality of people having toothed jaws masticate color-changeable chewing gums, obtaining a regression equation for the color presented by the masticated gum and the color difference between the gum before and the gum after mastication, and further, obtaining a regression equation for the number of times of mastication and the color difference between the gum before and the gum after mastication, to thereby obtain the number of times of mastication performed by the people having toothed jaws and the color difference in the color presented by the masticated gum.

Abstract: A device includes a winding rotary member having a cylindrical shape; a holder having a rotating member, which is provided in the vicinity of a cylindrical surface of the winding rotary member, capable of nipping and conveying the sheet; a first driving mechanism configured to rotate the winding rotary member; and a second driving mechanism configured to rotate the rotating member. The winding rotary member rotates with the sheet is nipped with the rotatable holder, whereby the sheet is wound around the winding rotary member.

Abstract: By suppressing deviation of dot-formation positions stemming from insufficient accuracy in conveying a printing medium due to eccentricity of a conveying roller, a printed image in which unevenness is less visible is obtained. An accumulated amount of conveyance errors is decreased by narrowing a nozzle-use range and reducing a conveyance amount over an entire printing region according to a mode used for printing an image in which the coverage of a printing medium is low due to a small number of ink colors to be used, for example, a mode used for printing a monochrome image by using a black ink dominantly in all of the density regions.

Abstract: An apparatus includes a reverse unit configured to wind a sheet printed at a print unit around the reverse unit and to reverse the sides of the sheet, and the reverse unit includes a winding rotary member having a cylindrical shape, and a skew correcting unit configured to correct skewing of sheets to be led into the winding rotary member.

Abstract: A printing apparatus includes a first housing at least a sheet feeding unit is provided therein and a second housing at least a printing unit is provided therein. The first housing and the second housing are individually supported on a floor. The first housing and the second housing are separable for the purpose of maintenance.

Abstract: To provide a most suitable block body for producing a denture base used when producing a denture base by cutting, the block body for producing a denture base is produced by polymerizing a (meth)acrylate monomer so as to have a color tone within a range that L* is 40 to 55, a* is 14 to 31, and b* is 5 to 20 when the color tone is measured with a sample thickness of 4 mm based on JIS Z8729, and to be preferably in a cylindrical shape having a diameter of 8 to 15 cm and a height of 1.5 to 5 cm, or in an elliptical-cylindrical shape having a major diameter and minor diameter of 8 to 15 cm and a height of 1.5 to 5 cm.

Abstract: An ink jet recording apparatus includes a conveyance mechanism, a recording mechanism and a control unit. The conveyance mechanism has a roller in contact with a recording surface of a sheet and conveys the sheet in a first direction. The recording mechanism records an image on a recording surface using a recording head on which a plurality of nozzles are formed over a range covering a width of a sheet to be used along a second direction crossing the first direction. The control unit, which controls the conveyance and recording mechanisms, performs an image record operation and a preliminary discharge operation onto the recording surface.

Abstract: An apparatus includes a printing unit configured to print a plurality of images sequentially onto a continuous sheet while conveying the sheet, a cutter configured to cut the printed sheet into every print unit length, a drying unit configured to dry the cut sheet cut while conveying the sheet piece by piece, and at least one feeding roller situated between the cutter and the drying unit configured to apply a driving force via a torque limiter, wherein a conveyance speed of the cut sheet is larger than the conveyance speed of the sheet conveyed through the drying unit, and the feeding roller absorbs a difference of the conveyance speed according to a function of the torque limiter.

Abstract: A printing apparatus includes a first housing at least a sheet feeding unit is provided therein and a second housing at least a printing unit is provided therein. The first housing and the second housing are individually supported on a floor. The first housing and the second housing are separable for the purpose of maintenance.

Abstract: A removable denture includes a denture base that is made of ultrahigh molecular weight polyethylene and is formed in a predetermined shape by a molded object of ultrahigh molecular weight polyethylene being cut; and artificial teeth that are arrayed at the denture base.

Abstract: An apparatus includes a reverse unit configured to wind a sheet printed at a print unit around the reverse unit and to reverse the sides of the sheet, and the reverse unit includes a winding rotary member having a cylindrical shape, and a skew correcting unit configured to correct skewing of sheets to be led into the winding rotary member.

Abstract: A device includes a winding rotary member having a cylindrical shape; a holder having a rotating member, which is provided in the vicinity of a cylindrical surface of the winding rotary member, capable of nipping and conveying the sheet; a first driving mechanism configured to rotate the winding rotary member; and a second driving mechanism configured to rotate the rotating member. The winding rotary member rotates with the sheet is nipped with the rotatable holder, whereby the sheet is wound around the winding rotary member.

Abstract: By suppressing deviation of dot-formation positions stemming from insufficient accuracy in conveying a printing medium due to eccentricity of a conveying roller, a printed image in which unevenness is less visible is obtained. An accumulated amount of conveyance errors is decreased by narrowing a nozzle-use range and reducing a conveyance amount over an entire printing region according to a mode used for printing an image in which the coverage of a printing medium is low due to a small number of ink colors to be used, for example, a mode used for printing a monochrome image by using a black ink dominantly in all of the density regions.

Abstract: By suppressing deviation of dot-formation positions stemming from insufficient accuracy in conveying a printing medium due to eccentricity of a conveying roller, a printed image in which unevenness is less visible is obtained. An accumulated amount of conveyance errors is reduced by narrowing a nozzle-use range and by reducing a conveyance amount over an entire printing region according to the number of colors to be used and desired printing quality in printing an image. Moreover, the nozzles used when the nozzle-use range is narrowed are not fixed, and are switched to be used as appropriate. This prevents only certain nozzles from being used concentratedly, and allows all of the nozzles to maintain substantially the same ejection performance.

Abstract: By suppressing deviation of dot-formation positions stemming from insufficient accuracy in conveying a printing medium due to eccentricity of a conveying roller, a printed image in which unevenness is less visible is obtained. An accumulated amount of conveyance errors is decreased by narrowing a nozzle-use range and reducing a conveyance amount over an entire printing region according to a mode used for printing an image in which the coverage of a printing medium is low due to a small number of ink colors to be used, for example, a mode used for printing a monochrome image by using a black ink dominantly in all of the density regions.

Abstract: An apparatus includes a printing unit configured to print a plurality of images sequentially onto a continuous sheet while conveying the sheet, a cutter configured to cut the printed sheet into every print unit length, a drying unit configured to dry the cut sheet cut while conveying the sheet piece by piece, and at least one feeding roller situated between the cutter and the drying unit configured to apply a driving force via a torque limiter, wherein a conveyance speed of the cut sheet is larger than the conveyance speed of the sheet conveyed through the drying unit, and the feeding roller absorbs a difference of the conveyance speed according to a function of the torque limiter.

Abstract: An ink jet recording apparatus includes a conveyance mechanism, a recording mechanism and a control unit. The conveyance mechanism has a roller in contact with a recording surface of a sheet and conveys the sheet in a first direction. The recording mechanism records an image on a recording surface using a recording head on which a plurality of nozzles are formed over a range covering a width of a sheet to be used along a second direction crossing the first direction. The control unit, which controls the conveyance and recording mechanisms, performs an image record operation and a preliminary discharge operation onto the recording surface.