Abstract: A method for manufacturing a molded product with fine structure includes steps of, in a temperature-controlled stamper mold provided with a fine structure including a concavo-convex pattern having a width of 10 nm to 1 ?m, forming a thermoplastic molten polymer layer to be in contact with the fine structure 20 of the stamper mold having been kept at a predetermined temperature and holding the thermoplastic molten polymer layer for a predetermined time so as to transfer the fine structure of the stamper mold to the thermoplastic molten polymer layer under gravity.

Abstract: The present invention is widely applicable to an injection molding method, an injection compression molding method, a blow molding method, a film sheet molding method using a roller and a thermoplastic molten polymer, and the like. An object of the invention is to provide a method for manufacturing a molded product with fine structure, which can transfer-mold a fine structure using any of various thermoplastic molten polymers without particularly requiring a pressurizing apparatus and can afford a nano-scaled fine pattern having a high economical efficiency, a large area, and homogeneous properties.

Abstract: A method and apparatus for manufacturing a molded product that includes a resin coating step of coating molten resin onto a forming mold having a minute uneven portion on the surface thereof, a compressing step of pressing the molten resin using the forming mold to thereby arrange the shape of the molded product, and a solidifying step of cooling and solidifying the molten resin. The resin coating step supplies the molten resin to a resin coating device including a discharge port and, while moving the resin coating device, discharges the molten resin onto the minute uneven portion of the heated forming mold from above to fill the molten resin into the minute uneven portion substantially in the same shape and thickness as those of a final shape of the molded product.

Abstract: An object of the invention is to provide method and apparatus for manufacturing a molded product in which a molded product having precise microstructure, high dimensional precision, low residual stress, low birefringence, high optical-transparency, and excellent mechanical strength can be provided in a three dimensional geometry, thin wall and large-area by a very low molding pressure molding process. The method and apparatus for manufacturing a molded product comprise a resin coating step of coating molten resin 12 onto a forming mold 11 having a minute uneven portion 10 on the surface thereof, a compressing step of pressing the molten resin 12 using the forming mold to thereby arrange the shape of the molded product, and a solidifying step of cooling and solidifying the molten resin 12.

Abstract: A method of controlling holding pressure in an injection molding operation and an apparatus therefor, wherein the quality of molded products can be controlled with a high accuracy without the need for a pressure sensor in a mold and without requiring any additional data such as the thickness of a molded product, the effective heat diffusion rate, and so on. Further, a method for estimating resin temperature in injection molding and an appartus therefor, wherein in-mold resin temperature in a holding pressure and cooling stage is estimated during injection at a high speed and with a high accuracy.