Abstract: A three-dimensional shaped article producing composition is provided and contains a plurality of particles, a solvent for dispersing the particles, and a binder having a function to temporarily bind the particles to one another in a state where the solvent is removed, wherein a volume-based average particle diameter of the particles is 0.1 ?m or more and less than 50 ?m, and a content ratio of the binder is 1.5 vol % or more and 10 vol % or less.

Abstract: A powder for additive manufacturing, which is a powder to be used in a three-dimensional additive manufacturing method, including a plurality of coated particles containing metal particles, and resin coating films that cover the metal particles and contain a caking additive, wherein 0.0001?t/D50?0.0010 in which t is an average thickness of the resin coating films and D50 is an average particle diameter of the metal particles.

Abstract: A method for producing a three-dimensional shaped article by stacking a plurality of layers is provided, and is characterized in that a series of steps including a layer forming step of forming the layer using a composition containing a plurality of particles, and a joining step of joining the particles contained in the layer to one another by irradiating the layer with a laser beam is repeatedly performed, an average particle diameter of the particles is represented by D50 and a thickness of the layer formed in the layer forming step is represented by Ds, a relation of Ds/D50<5.0 is satisfied, and an arithmetic average height Sa of a surface of the layer in a state where the particles are joined to one another by the joining step is 15 ?m or less.

Abstract: A fluid-material-dispensing-apparatus includes a setting section of a cartridge containing a fluid material, a material chamber to which the fluid material is supplied, a valve seat constituting a part of the material chamber and including a dispensing port, a piston configured to move inside the material chamber in a direction toward or away from the dispensing port, and a drive unit for the piston. The cartridge is detachable, and a plurality of cartridges respectively containing different fluid materials can be employed. At least one of the valve seat and the piston is detachable, and a plurality of detachable members respectively having different structures can be employed. The detachable members each include a structure information provider of a corresponding structure. The fluid-material-dispensing-apparatus includes an information reader that reads information from a material information provider, and the structure information provider.

Abstract: A method for producing a three-dimensional shaped article by stacking a plurality of layers is provided, and is characterized in that a series of steps including a layer forming step of forming the layer using a composition containing a plurality of particles, and a joining step of joining the particles contained in the layer to one another by irradiating the layer with a laser beam is repeatedly performed, an average particle diameter of the particles is represented by D50 and a thickness of the layer formed in the layer forming step is represented by Ds, a relation of Ds/D50<5.0 is satisfied, and an arithmetic average height Sa of a surface of the layer in a state where the particles are joined to one another by the joining step is 15 ?m or less.

Abstract: A three-dimensional shaped article producing powder according to the present disclosure includes a plurality of metal particles, and is used for producing a three-dimensional shaped article by laminating a plurality of layers while joining the metal particles to one another by irradiation with a laser beam, wherein as the metal particles, first metal particles and second metal particles having a composition different from the first metal particles are included. A content ratio of the first metal particles in the three-dimensional shaped article producing powder is higher than a content ratio of the second metal particles, and a reflectance of a peak wavelength component of the laser beam at 25° C. with respect to the first metal particles is smaller than a reflectance of a peak wavelength component of the laser beam at 25° C. with respect to the second metal particles.

Abstract: A powder for additive manufacturing, which is a powder to be used in a three-dimensional additive manufacturing method, including a plurality of coated particles containing metal particles, and resin coating films that cover the metal particles and contain a caking additive, wherein 0.0001?t/D50?0.0010 in which t is an average thickness of the resin coating films and D50 is an average particle diameter of the metal particles.

Abstract: A method of manufacturing a three-dimensional shaped object in which the three-dimensional shaped object is manufactured by laminating layers includes: a layer formation step of forming layers using a material containing powder and a binder; a removal step of removing a portion of the material in a boundary region including at least one of an end portion of a shaping region of the three-dimensional shaped object in the layer and an outer portion of the shaping region adjacent to the end portion by irradiating the boundary region with a laser; and a melting and solidifying step of melting and solidifying the material after melting in the shaping region by performing irradiation with the laser.

Abstract: A method of manufacturing a three-dimensional shaped object in which the three-dimensional shaped object is manufactured by laminating layers includes: a layer formation step of forming layers using a material containing powder and a binder; a removal step of removing a portion of the material in a boundary region including at least one of an end portion of a shaping region of the three-dimensional shaped object in the layer and an outer portion of the shaping region adjacent to the end portion by irradiating the boundary region with a laser; and a melting and solidifying step of melting and solidifying the material after melting in the shaping region by performing irradiation with the laser.

Abstract: A shaping material for a three-dimensional shaped article contains a metal powder, a cyclic cellulose derivative, a layered silicate configured to form a card-house structure, and a solvent. By forming a shaping material for a three-dimensional shaped article having such a configuration, in the shaping material for a three-dimensional shaped article containing the metal powder and the solvent, the metal powder can be prevented from precipitating in the solvent over a long period of time.

Abstract: A three-dimensional shaped article producing composition is provided and contains a plurality of particles, a solvent for dispersing the particles, and a binder having a function to temporarily bind the particles to one another in a state where the solvent is removed, wherein a volume-based average particle diameter of the particles is 0.1 ?m or more and less than 50 ?m, and a content ratio of the binder is 1.5 vol % or more and 10 vol % or less.

Abstract: A three-dimensional shaped article producing composition is provided and contains a plurality of particles, a solvent for dispersing the particles, and nanocellulose.

Abstract: Provided is a fluid composition for three-dimensional shaping used for manufacturing a three-dimensionally shaped object, and contains constituent material particles formed from metal and constituting the three-dimensionally shaped object and nanofiber containing at least one of chitosan nanofiber and cellulose nanofiber. By using such a fluid composition for three-dimensional shaping, the ejectability for manufacturing the three-dimensionally shaped object can be improved, and sediment of the constituent materials can be suppressed.

Abstract: A method for manufacturing a three-dimensional object includes a layer-forming step (Step S150) of forming layers using a flowable composition containing a constituent material powder and binder for forming a three-dimensional object; a degreasing step (Step S170) of removing the binder from a multilayer body, formed by stacking the layers, for the three-dimensional object; and a sintering step (Step S180) of sintering the constituent material powder by heating the multilayer body free from the binder. In the layer-forming step, channels leading to a surface of the multilayer body are formed such that gas, derived from the binder, generated in the degreasing step can flow through the channels.

Abstract: A fluid material ejecting apparatus includes a material chamber to which a fluid material containing at least one of metal particles and ceramic particles is supplied, a valve seat constituting a part of the material chamber and including an ejection port, a piston movable in the material chamber in directions toward and away from the ejection port, and a driver of the piston. The driver is configured to cause the piston to contact the valve seat from a position away from the valve seat and move in the direction toward the ejection port so as to slide along the valve seat, to thereby eject the fluid material through the ejection port. Sliding surfaces of the piston and the valve seat via which the piston and the valve seat contact each other have a higher Vickers hardness than the particles contained in the fluid material.

Abstract: The present invention provides a pharmaceutical composition for the treatment of dry eye and/or corneal and conjunctival lesion which comprises a recombinant human serum albumin produced by a recombinant yeast obtained by transforming a yeast with a gene for human serum albumin. Further, the present invention provides a method for the treatment of dry eye and/or corneal and conjunctival lesion, which comprises administering an effective amount of a recombinant human serum albumin produced by a recombinant yeast obtained by transforming a yeast with a gene for human serum albumin to a subject in need of the treatment of eye and/or corneal and conjunctival lesion.