There are provided a master and a method for manufacturing the master, the master having, on its outer peripheral surface, a concave-convex structure in which concavities or convexities are continuously arranged with high precision. The master includes: a substrate with a hollow cylindrical shape or cylindrical shape; and a concave-convex structure on an outer peripheral surface of the substrate. The concave-convex structure has concavities or convexities continuously arranged at a predetermined pitch in a circumferential direction of the substrate. The concavities or convexities are arranged with a predetermined phase difference between circumferential rows adjacent in an axial direction of the substrate.

It is provided an assembly including an optical material layer composed of a metal oxide, an underlying layer provided over the optical material layer and composed of a metal or a metal silicide, and a resin layer provided over the underlying layer. A mold including a design pattern corresponding with the fine pattern to the resin layer of the assembly to transcript the design pattern to the resin layer. The resin layer and underlying layer are etched to form an opening in the resin layer and underlying layer to expose the optical material layer through the opening. The optical material layer is etched using the underlying layer as a mask to form the fine pattern in the optical material layer.

A vehicle display device decorative part and a vehicle display device include a first area provided in the vehicle display device that displays information regarding a vehicle, and having a first pattern formed of a plurality of first grooves, and a second area provided to be included in the first area, and having a second pattern formed of a plurality of second grooves. As a result, the vehicle display device decorative part and the vehicle display device exhibits an effect to realize new and fresh visual effects due to a synergistic effect by a combination of the first pattern formed in the first area and the second pattern formed in the second area included in the first area.

An imprint apparatus brings an imprint material on a substrate including a first mark into contact with a mold including a second mark and cures the imprint material, thereby forming a cured product of the imprint material on the substrate. The apparatus includes a plurality of detectors used for alignment detection, and a controller configured to obtain a plurality of pieces of relative position information by detecting a relative position between the first mark and the second mark a plurality of times using the plurality of detectors in a state in which the imprint material is cured and a positional relationship between the substrate and the mold is maintained, and to calibrate, based on the plurality of pieces of relative position information, a plurality of detection processing operations each performed using each of the plurality of detectors.

A mold for vulcanizing and molding a tire is provided herein. The tire includes a tread delimited by two sidewalls, the mold including a ring for molding the tread of the tire and two shells for molding the sidewalls. The mold includes an annular groove extending in a recessed manner in one of the shells and an insert housed in the groove, this insert having tire marking elements and being formed from a plurality of insert parts that are positioned one after another in the annular groove.

The present invention relates to a method for the preparation of dies for moulds for the production of tiles with three dimensional texture.

A Press element and a method for manufacturing a structured press element, wherein a heterogeneous mask is applied on a metallic base element, after which a surface treatment is carried out and the heterogeneous mask has a certain resistance to the surface treatment.

Disclosed herein are techniques for molding a slanted structure. In some embodiments, a mold for nanoimprint lithography includes a support layer, a polymeric layer on the support layer and including a slanted structure, and an oxide layer on surfaces of the slanted structure. In some embodiments, the oxide layer is conformally deposited on the surfaces of the slanted structure by atomic layer deposition. In some embodiments, the mold further includes an anti-sticking layer on the oxide layer.

An optical substrate according to one embodiment includes a support substrate, and a projection-depression structure layer on a surface of which shapes of projections and depressions are formed, the projection-depression structure layer being laminated on the support substrate. The extending directions of projection portions contained in the projection-depression structure layer are irregularly distributed seen in planar view. An outline seen in planar view of a projection portion contained in a region per unit area of the projection-depression structure layer includes more straight line sections than curved line sections.

Provided are a production method of a mold, a manufacturing method of a pattern sheet, a production method of an electroform, a production method of a mold using an electroform, and an original. The production method includes: preparing an original having an inclined portion which is formed in an enclosed shape on an outer peripheral portion of a protruding pattern formed at a center portion on a base and gradually increases in thickness from inside toward outside, and a thermoplastic resin sheet; and forming a recessed pattern on the thermoplastic resin sheet by pressing the original which is heated against the thermoplastic resin sheet at a position where a flat surface of the original and a surface of the thermoplastic resin sheet are separated from each other, cooling the original in the state where the original is pressed, and separating the original from the thermoplastic resin sheet.