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Class 264/2.5 - Including step of mold making


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes which include the step of producing (a) a shaping
No. of patents: 471
Last issue date: 05/15/2012


1                      
NumberTitleIssue Date
8178011Self-assembled nano-lithographic imprint masks
The present disclosure relates to techniques for replicating large-scale nano-pattern structures using a block copolymer structure as a mask in a replication process. Example methods may include performing self-assembling block copolymer reactions to create large se...
05/15/2012
8158040Method for fabricating an optical sheet
An optical sheet and a method for fabricating the optical sheet, wherein a diffusion pattern is formed to diffuse and condense light. The optical sheet includes a prism pattern having a plurality of mountains and ravines to condense light generated from a light sour...
04/17/2012
8147729Techniques for forming burst cutting area mark
A BCA mark is applied prior to molding of optical recording media. A stamper including a BCA code is formed. The stamper including the BCA code is used in the molding of optical recording discs. This technique can be used in manufacturing of read-only type discs, re...
04/03/2012
8029708Methods of cutting or forming cavities in a substrate for use in making optical films, components or wave guides
A method of forming a varying pattern of optical elements on or in at least one side of an optical panel member involves cutting or forming a pattern or patterns of cavities in a cylindrical or curved substrate or in a sleeve or sleeve segment of the substrate that ...
10/04/2011
8025823Single-piece accommodating intraocular lens system
There is disclosed an accommodating intraocular lens for implantation in an eye having an optical axis. The lens comprises an anterior portion which in turn comprises an anterior viewing element and an anterior biasing element. The lens further comprises a posterior...
09/27/2011
8003024Polyolefin contact lens molds and uses thereof
Contact lens molds and methods of producing soft cast-molded contact lens products are provided. The methods include placing a soft hydrophilic contact lens-forming composition in a cavity formed between a first mold member and a second mold member, subjecting the c...
08/23/2011
8003023Master mold, master mold fabrication method, and method for fabricating liquid crystal display device using the same
A method for fabricating a liquid crystal display (LCD) device wherein a photolithography technique is replaced by soft lithography is disclosed. The method includes: forming a thin film transistor array substrate; forming a color filter substrate; bonding the thin ...
08/23/2011
7988889Mold for molding lenses and method for making the mold
An exemplary method for making a mold used for molding lenses includes the following. First, a base is provided. The base has parallel lines marked on a surface thereof. Second, a dispenser is provided. The dispenser dispenses lumps of molding material on selected p...
08/02/2011
7988890Method for manufacturing lens mold
In a method for manufacturing a lens mold, a raw mold is provided. The raw mold defines a cavity therein. The cavity defines a raw molding surface. The raw molding surface includes a molding surface portion. The molding surface portion includes a center. Photoresist...
08/02/2011
7985358Process of making mold for optical film
There is provided a process of making a mold for optical films. The process of making a mold for optical films comprises: etching a stereostructure in a surface of the mold having a flat surface or an engraved convex and concave surface, by using a laser beam. The p...
07/26/2011
7850880Method for forming aspherical optical element
An arrangement is made such that the magnitude of cure shrinkage obtained by multiplying the thickness of a resin layer 2 between a master mold 1 and a negative mold substrate 3 by the cure shrinkage ratio of the resin and the magnitude of cure ...
12/14/2010
7833443Molds for producing contact lenses
This invention describes molds made from alicyclic co-polymers that are useful in the production of contact lenses and methods for their use. ...
11/16/2010
7780880Method of manufacturing a lens
A plastic lens, which does not require a modification to an inner diameter of a mirror frame but is uniform in outer diameter, is provided and include: protrusions on the circumference in at least three points divided thereof into three equal parts except for an inj...
08/24/2010
7780881Contact lens molds and systems and methods for producing same
Contact lens molds and systems and methods for producing contact lens molds are described. The contact lens mold sections include two optical quality surfaces, a flange circumscribing at least a portion of the two optical quality surfaces, and an elongate member ext...
08/24/2010
7754113Method for making an intraocular lens
The invention is a mold and method for using the mold to make a multi-stage intraocular lens. The mold is provided with a gate in fluid communication with a lens portion and/or haptic portion of the mold core. In addition, a gasket is provided around the mold core. ...
07/13/2010
7736552Method for producing mold for zonal optical element
A method for producing a mold for a zonal optical element including forming a circular portion where, while rotating a work around a rotation axis corresponding to the optical axis as a center, a tip is relatively moved relative to the work to form the circular port...
06/15/2010
7722788Mold inserts
The invention relates to a mold insert, the interior surface thereof having an average quadratic roughness of less than 10 nm. Said insert is covered with a protective layer exhibiting a Vickers hardness of more than 1000 HV, a thickness of between 0.2 and 5 μm, an...
05/25/2010
7713453Method for fabricating microlenses and process of single photomask pattern-based photolithography
A method for fabricating micro-lenses and a method for fabricating micro-lenses by photolithography are provided. The method includes forming a plurality of micro-cavities in a substrate, filling lens material into each of the micro-cavities, and heating the lens ma...
05/11/2010
7708914Method of and apparatus for producing micro lens and micro lens
The steps of producing a micro lens comprises the steps of forming a resin layer on a substrate in a desired pattern, causing the resin layer to absorb from its surroundings solvent which dissolves the resin so that the resin layer has fluidity and the surface of th...
05/04/2010
7686988Method of forming a die surface to produce an optical element
A method of forming a transferring surface onto a producing die to produce an optical element, wherein the transferring surface transfers an optical surface onto the produced optical element, the method comprising the steps of: cutting a material so as to form the t...
03/30/2010
7670515Method for fabricating a mold for a microlens
A method for fabricating a mold for a microlens having a desired radius (R) of curvature by electroplating. In this method, a minimum radius (Rmin) of curvature is utilized to achieve the desired curvature radius. ...
03/02/2010
7452490Method and apparatus for fabricating a light management substrates
A method of machining a surface of a workpiece is accomplished by bringing a cutting tool into contact with the surface of the workpiece and for at least one cutting pass, i, causing relative movement between the cutting tool and the surface of the workpiece along a...
11/18/2008
7427371Method of producing anti-glare film
An antiglare film producing method of film production by surface embossing to polymer film is provided. The polymer film includes a support of triacetyl cellulose, and an anti-reflection layer overlaid thereon. An embossing roller is used for surface embossing to a ...
09/23/2008
7422710Method for manufacturing a contact lens
The invention provides molds and mold inserts useful in the production of contact lenses. In particular, the invention provides high optical quality molds and inserts useful for manufacturing silicone hydrogel contact lenses. ...
09/09/2008
7403334Optical member and process of producing the same
The present invention provides an optical member having excellent anti-reflection properties, capable of being produced inexpensively as compared with conventional optical members having anti-reflection properties and of being mass-produced with quality kept constan...
07/22/2008
7387759System and method for curing polymeric moldings having a masking collar
A system and method for forming a polymeric molding. A mold component includes a transmissive portion for passing curing energy such as UV light into the mold cavity. A masking collar is engaged around the transmissive portion to block curing energy from exposing an...
06/17/2008
7384590System and method for curing polymeric moldings
A system and method for forming a polymeric molding. A mold component includes a UV-absorptive material for preventing undesired reflection or transmission of curing energy within the mold cavity, thereby providing more precise control of the edge geometry of the mo...
06/10/2008
7371339Prismatic retroreflector having a multi-plane facet
A retroreflective structure includes a retroreflective sheeting having an array of transparent prisms formed into pairs of prisms. Each prism includes a base aperture and three intersecting lateral faces meeting at an apex. Each of the lateral faces includes a base ...
05/13/2008
7358018Substrate for electrophotographic photoreceptor, process for producing the substrate, and electrophotographic photoreceptor employing the substrate
An electrophotographic photoreceptor substrate which can be easily produced with high productivity and prevents the occurrence of image defects, and which has fine grooves formed in the surface thereof and is characterized in that the grooves are curved and disconti...
04/15/2008
7353666Method for press molding a glass optical element
A molding apparatus for molding a press-molded product by heating and softening a material and press-molding the material into a predetermined shape by the use of a mold, includes a pair of dies which form the mold, each of which comprises a molding surface facing w...
04/08/2008
7351520Micro-lens array and manufacturing method thereof
A micro-lens array and manufacturing method. A hybrid micro-lens in which a refractive lens and a diffraction lens are formed includes: a refractive lens; a first ultraviolet hardening material which is bonded on a curved surface of the refractive lens to form an as...
04/01/2008
7352424Altering surface of display screen from matt to optically smooth
A matt surface (7) of a display screen (2) is converted to a non-diffuse optically smooth surface (11). The matt surface may be a diffusive surface (7) formed on a birefringent film (6) of an LCD screen (2). The display scre...
04/01/2008
7349159Mold for manufacturing a microlens substrate, a method of manufacturing microlens substrate, a microlens substrate, a transmission screen, and a rear projection
A mold 6 for manufacturing a microlens substrate 1 is disclosed. The microlens substrate is provided with a plurality of microlenses each having a predetermined convex shape. The mold is used to press a base material of the microlens substrate to form ...
03/25/2008
7334769Resin molding machine and member for resin molding machine having film in passive state
A member for a resin molding machine wherein it has a face contacting with a molten resin, and at least a part of the face is covered with a film of an oxide of a base material of the face or a component contained in the base material. The use of the member in the m...
02/26/2008
7329372Method for producing aspherical structure, and aspherical lens array molding tool and aspherical lens array produced by the same method
A method for producing an aspherical structure according to the invention includes the steps of: forming a layer on a surface of a substrate so that the layer exhibits an etching rate distribution in a direction perpendicular to the surface of the substrate; forming...
02/12/2008
7326373Method for forming a wafer for use in an optical part
An improved method is disclosed, for forming a wafer into a complex, curved shape, for use in an optical part. The method includes a step of moving the wafer into contact with a molding surface having a predetermined non-cylindrical, aspheric curved shape, to form t...
02/05/2008
7323111Angle control of multi-cavity molded components for MEMS and NEMS group assembly
A method of making a mold includes forming spaced mold cavities in a mold body. The mold cavities include geometrically similar portions, but have respective depths below an initial reference surface that vary as a function of position along a particular direction. ...
01/29/2008
7323123Method of fabricating light-guide plate
A method of fabricating a light-guide plate includes preparing an upper mold frame having an inclined inner surface and a lower mold frame having a space therein, preparing a micro pattern plate having a surface including one of a plurality of grooves and a pluralit...
01/29/2008
7320587Contact lens molds and systems and methods for producing same
Contact lens molds and systems and methods for producing contact lens molds are described. The contact lens mold sections include two optical quality surfaces, a flange circumscribing at least a portion of the two optical quality surfaces, and an elongate member ext...
01/22/2008
7317572Fresnel lens sheet, rear projection screen and rear projection display
There is provided a Fresnel lens sheet for converging light rays fallen thereon from oblique directions, and capable of reducing the reflection of external light, of enabling displaying images in satisfactory contrast, of suppressing the occurrence of moiré and of ...
01/08/2008
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