Dexerials Corporation

Masanao Kikuchi

Yutaka Muramoto

Shunichi Kajiya

Takaaki Otowa

Kazuya Hayashibe

Yasuhiro Takahashi

Hiroshi Tazawa

Asahiko Nogami

Hideki Terashima

Akihiro Shibata

Kyoko Sakurai

Provided are a concave-convex structure including more complicated concave-convex structure, an optical member, and an electronic apparatus. The concave-convex structure includes a plurality of group portions each including a plurality of concavities or convexities provided in a surface of a base material, in which average widths of areas occupied by the concavities or convexities at the surface of the base material are smaller than or equal to a wavelength belonging to a visible light band.

Concave-convex structure, optical member, and electronic apparatus

A method for fabricating an imprint mastercomprises a first forming step of forming micro-protrusion-and-recess structureshaving a first average pitch on one surface of a substrateand a second forming step of forming main recessesor main protrusionshaving a second average pitch larger than the first average pitch on the one surface of the substratehaving the micro-protrusion-and-recess structuresformed thereon, in a manner maintaining a shape of at least a portion of the micro-protrusion-and-recess structuresin the main recessesor the main protrusionswhile the main recessesor the main protrusionsare being formed.

Method for fabricating imprint master, the imprint master, imprint and article

Provided are a master in which a more complicated microstructure is formed, a transferred object obtained by using the master, and a method of producing the master. A plurality of concave-convex groups each including a plurality of concavities or convexities are provided on a base material apart from each other. Average widths of areas occupied by the concavities or convexities at a surface of the base material are smaller than or equal to a wavelength belonging to a visible light band. Formed lengths of the concavities or convexities from the surface of the base material in each of the concave-convex groups each belong to any of at least two or more groups having different central values.

Master, transferred object, and method of producing master

Provided are a cylindrical base, a master and a method for manufacturing a master enabling a uniform transfer of a fine pattern. A cylindrical base of a quartz glass having an internal strain in terms of birefringence of less than 70 nm/cm is used. A resist layer is deposited to an outer circumference surface of this cylindrical base, a latent image is formed on the resist layer, the latent image formed on the resist layer is developed and the pattern of the developed resist layer is used as a mask for etching to form a structure including concaves or convexes arranged in a plurality of rows on the outer circumference surface of the cylindrical base.

Cylindrical base, master and master manufacturing method

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.

Master, transfer copy, and method for manufacturing master

A replica master moldcomprises: a base material layer; and a surface shape bodyformed on the base material layerand having a fine irregular pattern, wherein a softening temperature of the surface shape bodyis higher than a softening temperature of the base material layer

Replica master mold, method of manufacturing replica master mold, article, and method of manufacturing formation object

There is provided an optical body with improved antireflection capability, a display device, and a method for manufacturing an optical body, the optical body including: a first concave-convex structure formed on a surface of a base material; and a second concave-convex structure superimposed on the first concave-convex structure. An average concave-convex period of the first concave-convex structure is larger than a wavelength in a visible light region, an average concave-convex period of the second concave-convex structure is less than or equal to the wavelength in the visible light region, and projecting parts of the second concave-convex structure extend in a direction normal to a flat plane of the base material.

Optical body, display device, and method for manufacturing optical body

There is provided an embossed film in which the frequency of loss of concavities is smaller, the embossed film including: a film main body; and a plurality of concavities formed on a surface of the film main body. A diameter of an opening surface of the concavity is larger than a visible light wavelength, an arrangement pattern of the concavities has periodicity along a length direction of the film main body, and the difference between the rate of loss of concavities in one end portion of the film main body and the rate of loss of concavities in the other end portion of the film main body is 10 ppm or less.

Embossed film, sheet film, transfer copy, and method for producing embossed film

There is provided a new and improved optical body, a new and improved method for manufacturing an optical body, and a new and improved light emitting device that can emit light derived from a light source in more various manners. The optical body includes: a base material; and a first concave-convex structure that is formed on at least one surface of the base material and that extracts internally propagating light that is injected into an inside of the base material from a side surface of the base material. An average period of concavity and convexity of the first concave-convex structure is more than or equal to a minimum value of a visible light wavelength band and less than or equal to 10 &#x3bc;m.

Growing community of inventors

Miyagi, Japan

Masanao Kikuchi