| Class / Patent application number | Description | Number of patent applications / Date published |
|---|
| 264100600 | Continuous or indefinite length | 22 |
| 20090230576 | Method for Manufacturing Optical Film - A method for manufacturing an optical film comprising the steps of: 1) casting a dope (a solution), prepared by dissolving thermoplastic resin film raw materials in a solvent, from a casting die onto an at least 1.8 m wide belt support, and 2) drying a cast web (a cast film) peeled from the belt support, wherein the belt support has a thickness (Te) at both right and left end portions, of 5-20% less than a thickness (T) of the remaining portion including the transverse center portion of the belt support, provided that the Te indicates a thickness at both right and left end portions, each having a width (We) of 2-25% of a total width (W) of the belt support when viewed from both right and left side edges thereof. | 09-17-2009 |
| 20090230577 | METHOD OF PRODUCING INDENTED SHEET - The present invention provides a sheet-shaped object on which surface a regular, fine indented pattern is formed, without a decrease in accuracy of the formed pattern structure or defects caused by peeling faults. The present invention also provides a method of producing an indented sheet on which indents on an indented roller surface are transferred onto a surface of a sheet-shaped object. In order to solve the problems above, the method comprises the steps of: continuously running a band-shaped flexible sheet-shaped object; coating a radiation curable resin solution on a surface of the continuously running sheet-shaped object to form a coated layer; transferring indents on the indented roller surface onto the coated layer with the continuously running sheet-shaped object being wound onto the rotating indented roller; curing the coated layer by irradiating radiation with the continuously running sheet-shaped object being wound onto the indented roller; and peeling the continuously running sheet-shaped object from the indented roller, wherein the transferring step, curing step, and peeling step are carried out inside a casing, and temperature and humidity in the casing are each controlled to be within a certain variation range with respect to a target value. | 09-17-2009 |
| 20090273104 | PRODUCING METHOD OF POLYMER FILM - A casting dope ( | 11-05-2009 |
| 20090294998 | Method and Apparatus for Producing Embossed Sheet - A method of producing an embossed sheet includes the steps of allowing a flexible strip-shaped sheet to continuously travel, forming a coating layer by coating the surface of the sheet with a radiation curable resin, transferring a pattern of concavities and convexities on the surface of the emboss roller to the coating layer by winding the sheet around the rotating emboss roller, curing the coating layer by irradiating the sheet which is wound around the roller with radiation, releasing the sheet from the emboss roller, laminating a protective film on one or both sides of the continuously traveling sheet after releasing, and taking up the continuously traveling sheet after lamination in the form of a roll. According to the method, a high quality, defect-free embossed sheet having a fine regular pattern of concavities and convexities on the surface can be produced at high line speed with high productivity. | 12-03-2009 |
| 20100065974 | PROCESSES FOR PRODUCING COATING FLUID AND OPTICALLY ANISOTROPIC FILM - A process for the producing a coating fluid of the present invention comprises a step of adjusting a pH of the coating fluid by mixing ammonium hydroxide into an acid solution containing a lyotropic liquid crystal compound and a solvent. Further, a process for the producing an optically anisotropic film of the present invention comprises a step of obtaining an optically anisotropic film by casting the coating fluid produced by the aforementioned process for production of the coating fluid in a thin film state, followed by drying. | 03-18-2010 |
| 20100219540 | METHOD OF MAKING OPTICAL BODY HAVING POLYACRYLATE SKIN LAYER - A method of making an optical body an optical body is disclosed. The method includes coextruding a first skin layer and a first strippable skin layer on a first side of an optical layer. The first skin layer is disposed between the optical layer and the first strippable skin layer. The first skin layer includes a mixture of a polyacrylate and a second polymer which may or may not be miscible in the polyacrylate. The second polymer may be an anti-static polymer. | 09-02-2010 |
| 20100230835 | COMPOSITE POLYMER FIBERS - A composite polymer fiber comprises a polymer filler material and a plurality of polymer scattering fibers disposed within the filler material. At least one of the filler material and the scattering fibers is formed of a birefringent material. The refractive indices of the filler material and the scattering fibers can be substantially matched for light incident in a first polarization state on the composite polymer fiber and unmatched for light incident in an orthogonal polarization state. The scattering fibers may be arranged to form a photonic crystal within the composite fiber. The composite fibers may be extruded and may be formed into a yarn, a weave or the like. If the filler material is soluble, it may be washed out of the yarn or weave, and the scattering fibers may then be infiltrated with a resin that is subsequently cured. | 09-16-2010 |
| 20100258960 | PROCESS FOR PRODUCING OPTICAL FILM MADE OF THERMOPLASTIC RESIN - There is provided a process for producing an optical thermoplastic resin film that can yield films with almost no orientation and with high transparency. | 10-14-2010 |
| 20110018149 | OPTICAL FILM AND METHOD AND APPARATUS FOR MANUFACTURING THE SAME - Disclosed is a method of manufacturing an optical film in which thickness unevenness and optical distortion are sufficiently prevented, employing a melt casting film formation method. The method is one manufacturing an optical film by extruding a melted film forming composition containing a thermoplastic resin from lip portions of a casting die to form a melted product in the form of a film and then holding the resulting melted product between a pair of rotary rollers thereby cooling and solidifying the melted product, wherein the method comprises heating a shield plate, which is provided in the vicinity of an inlet of a nip of the pair of rotary rollers and in the vicinity of the surface of at least one of the pair of rotary rollers, thereby heating an air stream occurring upon rotation of the rotary rollers. | 01-27-2011 |
| 20110156292 | METHOD OF MANUFACTURING BRIGHTNESS ENHANCEMENT FILM AND ROLLER USED THEREIN - A method of manufacturing brightness enhancement film includes a roller with an outer surface and a plurality of micro-structures formed on the outer surface undergoing sandblasting, thereby forming a plurality of rough portions on the outer surface, rolling the blasted roller onto a substrate whereby the micro-structures and the rough portions imprint the substrate to form a plurality of brightness enhancement portions and a plurality of diffusion portions on the outer surface of the blasted roller, and cutting the imprinted substrate to provide a brightness enhancement film. | 06-30-2011 |
| 20110227238 | APPARATUS AND METHOD FOR PRODUCING OPTICAL SHEETING - [Object] An apparatus and a method for producing optical sheeting with which increased productivity can be achieved while maintaining the accuracy of produced optical sheeting. | 09-22-2011 |
| 20130009329 | Precision Control of Web Material having Micro-replicated Lens Array - A manufacturing system includes a sensing system that provides high-resolution feedback for web guiding and tension control. The system may be especially useful for web material that is manufactured to include micro-replicated structures with micron size scale. A micro-replication station forms a pattern of micro-replicated lenses on a web material. The sensing system illuminates a measurement area on the web material and detects an angular distribution of light exiting a set of the micro-replicated lenses within the first measurement area. A control system that adjusts at least one process control parameter of the transport system based on the detected angular distribution. | 01-10-2013 |
| 20130234349 | Optical Film, Process of Producing the Same, and Polarizing Plate and Image Displaying Device Employing the Same - An optical film comprising a first domain of a polymer composition and a second domain disposed inside the first domain, wherein the second domain is a bubble having a morphology anisotropy, and the mean alignment direction of the main chain of the polymer molecule in the first domain differs from the mean direction of the major axis of the second domain, is capable of contributing toward display performance unification and body thickness reduction of an image display device. | 09-12-2013 |
| 20140015152 | METHOD FOR PREPARING ACRYLIC COPOLYMER RESIN FOR OPTICAL FILM AND METHOD FOR FABRICATING OPTICAL FILM USING THE SAME - There is provided a method for preparing an acrylic copolymer resin for an optical film includes: suspension-polymerizing an acrylic monomer containing a benzene ring, an alkyl(meth)acrylate monomer, and a (meth)acrylic acid monomer to prepare a copolymer; and thermally treating the copolymer at a temperature ranging from 240° C. to 300° C. As the method for preparing an acrylic copolymer of the present invention, a resin having an effectively lowered CTE can be manufactured by inducing the formation of a glutaric anhydride structure by using suspension polymerization that facilitates adjustment of the molecular weight of a resin. | 01-16-2014 |
| 20140027934 | OPTICAL BODIES INCLUDING ROUGH STRIPPABLE BOUNDARY LAYERS AND ASYMMETRIC SURFACE STRUCTURES - Optical bodies are disclosed that include an optical film and at least one rough strippable skin layer. The at least one rough strippable skin layer can include a continuous phase and a disperse phase. In some embodiments, the at least one rough strippable skin layer can include a first polymer, a second polymer different from the first polymer and an additional material that is substantially immiscible in at least one of the first and second polymers. In some exemplary embodiments, a surface of the at least one rough strippable skin layer adjacent to the optical film comprises a plurality of protrusions and the adjacent surface of the optical film comprises a plurality of asymmetric depressions substantially corresponding to said plurality of protrusions. Methods of making such exemplary optical bodies are also disclosed. | 01-30-2014 |
| 20140103551 | METHOD FOR PRODUCING AN OPTICAL COMPENSATING RESIN FILM FOR A POLARIZING PLATE - A method of producing an optical compensating resin film for a polarizing plate including casting a resin exhibiting a glass transition temperature of 150 to 200° C. determined via DSC via a solution casting to form a film; peeling the formed film; conveying the film at a temperature of 60° C. or less for at least 90 seconds; and stretching the film. | 04-17-2014 |
| 20140117570 | METHOD OF PRODUCING AN OPTICAL COMPENSATION FILM - The invention relates to an optical compensation film for IPS or FFS-mode liquid crystal display devices, having the tilt angle β[°] not equal to zero, β[°] being defined as φ giving the minimum value of retardation R[φ] which is retardation measured for incident light coming in a direction tilted by φ° from a normal line relative to the film-plane, the direction being in a plane including the direction perpendicular to the in-plane slow axis thereof and the normal line; and having retardation along the thickness direction at a wavelength of 550 nm, Rth(550), not equal to zero. | 05-01-2014 |
| 20140239523 | OPTICAL FILM AND METHOD OF MANUFACTURING THE SAME - The present invention provides an optical film and a retardation film that each include an acryl resin, and 20 to 65 parts by weight of a graft copolymer including a conjugated diene rubber based on 100 parts by weight of the acryl resin, and an electronic device including the same. | 08-28-2014 |
| 20140284825 | METHODS FOR MANUFACTURING AN EMBOSSER DRUM FOR USE IN PRE-FORMATTING OPTICAL TAPE MEDIA - Various embodiments herein include utilities for generating embosser drums that are used to pre-format optical media such as optical tape with a pattern of nanostructures such as wobbled grooves. One utility includes generating a plurality of replicas from an embossing master, bonding the replicas together to form a bonded replica structure having a surface with the nanostructure pattern imprinted therein, creating a replica of the bonded replica structure and electroforming a metallic layer onto the bonded replica structure replica to create a single, one piece, metallic shim which can be used to create a weld-less embosser drum. | 09-25-2014 |
| 20140300011 | APPARATUS AND METHOD FOR MANUFACTURING OPTICAL FILM - An exemplary apparatus for manufacturing an optical film includes a feed hopper, a platen, a first pressing roller group, and a second pressing roller group. The feed hopper is configured for providing resin. The platen and the first pressing roller group are arranged adjacent to the feeding hopper and spaced a predetermined distance to define a guiding channel. A second pressing roller group is arranged below the first pressing roller group and spaced the predetermined distance thereby defining a molding channel. The melted resin flows into the guiding channel and is pressed by the platen and the first pressing roller group, and is then rolled into the molding channel with rolling of the first pressing roller group. The first and the second pressing roller group are configured for forming microstructures on opposite surfaces of the optical film, respectively. A method for manufacturing the optical film is also provided. | 10-09-2014 |
| 20150076719 | METHOD OF MANUFACTURING POLYMER FILM AND POLYMER FILM STRETCHING APPARATUS THEREFOR - A method of manufacturing a polyimide film includes: extruding a polyimide film including polyimide and a solvent; first drying the extruded polyimide film; stripping the first-dried polyimide film; second drying the stripped polyimide film to remove a residual solvent in the polyimide film; and stretching the second-dried polyimide film, wherein an amount of the residual solvent in the second-dried polyimide film is equal to or less than about 10 weight percent. | 03-19-2015 |
| 20160001511 | Methods for Manufacturing an Embosser Drum for Use In Pre-Formatting Optical Tape Media - Various embodiments herein include utilities for generating embosser drums that are used to pre-format optical media such as optical tape with a pattern of nanostructures such as wobbled grooves. One utility includes generating a plurality of replicas from an embossing master, bonding the replicas together to form a bonded replica structure having a surface with the nanostructure pattern imprinted therein, creating a replica of the bonded replica structure and electroforming a metallic layer onto the bonded replica structure replica to create a single, one piece, metallic shim which can be used to create a weld-less embosser drum. | 01-07-2016 |
