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Class 264/2.1 - Rotational molding


Subclass of Class 264 - Plastic and nonmetallic article shaping or treating: processes
Definition: Processes in which rotating motion is imparted to the material
No. of patents: 157
Last issue date: 11/30/2010


1        
NumberTitleIssue Date
7842202Production method and production apparatus of optical disc
In order to control a warp of a disc substrate so as to be a desired level, an optical disc production method includes: a step of supplying resin on the disc substrate; a step of mounting the disc substrate on an inside diameter portion of a turntable after supplyin...
11/30/2010
7704417Heated mold tooling
A method for varying a radius of an optical quality surface of a casting mold formed in a tooling cavity, the tooling cavity at least partially defined by an optical tool having an optical quality surface of a given radius, includes imparting a compressive stress wi...
04/27/2010
7323124Optical disc cover layer formation method and optical disc cover layer formation device
A liquid-form adhesive, which is a raw material of the cover layer, is supplied to a plate surface of the disc substrate, which has been set on a turntable, after which a dummy substrate is set on the disc substrate. The dummy substrate is positioned to be concentri...
01/29/2008
7284856Method for designing color filters which improve or modify color vision of human eye, and color filter means designed by the method
The invention relates to a method for designing color filters which improve or modify color vision of the human eye. According to the invention a desired opponent signal function to be attained is divided by a real opponent signal function characteristic of the eye ...
10/23/2007
7268198Silicone hydrogel contact lenses
Silicone hydrogels, including vinyl carbonate endcapped polysiloxanes containing a fluorinated side chain, are useful as biomaterials, especially hydrogel biomaterials, including contact lens materials. The hydrogels are the hydrated polymerization product of a mono...
09/11/2007
7252727Repair system and method for fiberglass boats
A method to repair moisture damaged wood core boat hulls remotely identifies and repairs all wet core hull areas and optionally performs preventive maintenance on dry hull areas to restore the integrity of a fiberglass boat hull and prevent new water infiltration da...
08/07/2007
7249849Contact lenses with blended microchannels
Contact lenses for use in eyes are provided and include a lens body and a plurality of microchannels defined in a posterior face of the lens body. The microchannels are structured to promote effective tear fluid exchange between an exposed surface of the eye and a s...
07/31/2007
7249848Wettable hydrogels comprising reactive, hydrophilic, polymeric internal wetting agents
The present invention relates to wettable silicone hydrogels comprising the reaction product of at least one siloxane containing component and at least one reactive, hydrophilic polymeric internal wetting agent. The present invention further relates to silicone hydr...
07/31/2007
7213918Method for making colored silicone hydrogel contact lenses
The present invention generally relates to a method for making made-to-order (MTO) or customized silicone hydrogel lenses which have printed images on and/or below lens surfaces. A preferred method of the invention comprises printing and curing an ink on the molding...
05/08/2007
7187859Method and apparatus for manufacturing contact lenses
The present invention is directed towards adhering a contact lens button on a fixture for use in shaping, forming and/or otherwise configuring a contact lens. For example, in accordance with one exemplary embodiments of the present invention, a combination of adhesi...
03/06/2007
7165839Method for producing tinted contact lenses
The invention provides a method of producing a full-body tinted contact lens. The method of the invention comprises the steps of: preconditioning particles of a pigments; dispersing the preconditioned pigment particles in a polymerizable fluid composition to obtain ...
01/23/2007
7160496Thermoplastic compositions containing metal material
Thermoplastic compositions containing metal materials and a method for preparing the same. The compositions are formed into particles having diameters suitable for a rotational thermoforming processing. The compositions are particularly applicable for use in slush m...
01/09/2007
7147326Lens with colored portion and coated surface
A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different t...
12/12/2006
7141688Fluorinated dye stabilizers in fluorinated dielectric solvent
The present invention is directed to novel fluorinated dye stabilizers having both high quenching efficiency and solubility in halogenated solvents. These dye stabilizers have shown a significantly effect on improving the dye fastness in hostile photooxidation condi...
11/28/2006
7128851Method of removing scratches from a compact disc
An apparatus and method is disclosed for repairing and removing scratches from an optically-read disc, e. g., compact discs (often called “CD's” or “DVD's” such that when refurbished, an optical reader, which uses a laser to read digital information stored o...
10/31/2006
7101920Water-soluble blocking wax formulation
The invention provides, in a first embodiment, a blocking wax composition. The blocking wax comprises from about 50 to about 90 weight percent of a water-soluble continuous phase and from about 10 to about 50 weight percent of a discontinuous solid phase filler that...
09/05/2006
7087222Method for enhancing integrity of epithelium using retinoic acid
A method for improving the integrity of the corneal epithelium by introducing into the eye an effective amount of a ophthalmically compatible retinoid sufficient to enhance the integrity of the corneal epithelium. ...
08/08/2006
7080905Contact lenses with blended microchannels
Contact lenses for use in eyes are provided and include a lens body and a plurality of microchannels defined in a posterior face of the lens body. The microchannels are structured to promote effective tear fluid exchange between an exposed surface of the eye and a s...
07/25/2006
7062135Method for fabricating curved elements
The present invention provides methods for forming convex and concave elements on the ends of supporting members. A convex element may be formed by forming a droplet on the end of the supporting member, then curing the droplet. The size of the droplet may be control...
06/13/2006
7050691Optical waveguide and method of manufacturing the same
A method of manufacturing an optical waveguide having a core and a clad. The method includes forming a first clad by applying a resin on a substrate and curing the resin, applying a core material between a recessed mold which has a recess having a shape identical to...
05/23/2006
7028974Lens molding die and a producing method therefor
A lens molding die for producing a lens, which comprises a base member made of a hard material and having one surface of a predetermined shape; and a resin-molded layer formed on the one surface of the base member and having a surface shape corresponding to a predet...
04/18/2006
7021761Lens with colored portion and coated surface
A lens with a colored portion is composed of a lens-forming polymer having a front lens surface and a back lens surface. A colorant is applied to at least one of these surfaces, and these surfaces may be coated with a coating layer composed of a material different t...
04/04/2006
7022813Process for purifying and reusing solvent used to remove extractables
A process for treating biomedical devices, especially contact lenses, involves contacting polymeric devices containing extractables with a solvent that dissolves and thereby removes the extractables from the device, treating the solvent to remove extractables from t...
04/04/2006
6984345Cavity-preventing type reactor and a method for fabricating a preform for a plastic optical fiber using the same
A cavity-preventing type reactor and a method for fabricating a preform for a plastic optical fiber using the same, wherein post-process charging of additional monomer or prepolymer into rotationally-induced central cavities is avoided by forming void-free plastic f...
01/10/2006
6958169Surface treatment of medical device
A method for improving the wettability of a medical device involves: (a) providing a medical device formed from a monomer mixture comprising a hydrophilic device-forming monomer including a copolymerizable group and an electron donating moiety, and a second device-f...
10/25/2005
6955658Mold for forming a medical balloon
A mold for forming medical balloons and the balloons formed therefrom are disclosed. The mold has a generally cylindrical inner molding surface for forming a working length of the balloon, and generally cylindrical outer molding surfaces at either end of the mold fo...
10/18/2005
6951398Deformable reflecting mirrors from metallic surface layers deposited on liquids
The invention relates to a new type of reflective optical element made of a reflective metallic layer comprising reflecting nanoparticles deposited on a liquid surface. Metallic or non-metallic nanometer-sized particles are coated with a ligand. The coated particles...
10/04/2005
6942341Soft translating contact lens for presbyopia
A method of producing a master cast used in making a contact lens mold, comprising the steps of: rotating a master cast blank, having an outer surface, about a first rotational axis and cutting at lest one first surface onto the outer surface of the master cast blan...
09/13/2005
6939486Apparatus and method for making intraocular lenses
Method and apparatus for molding an IOL comprising first and second mold halves each having an optic forming surface and haptic forming surfaces which together define a mold cavity in the shape of the IOL to be molded therein when the mold halves are assembled toget...
09/06/2005
6896417Hollow cast article with slit, method and apparatus for production thereof
In the production of a hollow cast article having a slit, the release of a hollow cast product from a mold is carried out while opening the hollow cast product. In one embodiment, a core provided with recessed parts (or projected parts) formed in a slit forming part...
05/24/2005
6878314Method for automatic manufacture of and printing on astigmatic contact lenses and apparatus therefor
A method of automatic manufacture of an astigmatic contact lens having a toric portion and a ballast portion such that said ballast portion causes the toric portion of the contact lens to properly orient in the eye of the wearer. The toric lenses are manufactured by...
04/12/2005
6834955Tinted lenses and methods of manufacture
The present invention recognizes that lenses, such as contact lenses, can be pigmented using ink that include polymers or polymerizable monomers, preferably the same monomers used to make the lens. The ink can be used to make images on or within the lens. Images mad...
12/28/2004
6783707Lens, manufacturing method thereof, and optical pickup
Disclosed are a lens efficiently manufactured into an accurate shape at a low cost, a manufacturing method thereof, and an optical pickup using the lens. The lens includes a geometrical optics portion for converging light having been incident thereon from its light ...
08/31/2004
6776932Polymeric optical articles
Polymeric optical articles, including gradient index optical preforms and fiber produced therefrom, are described. Methods for producing the optical articles using platicizers and/or dopants in the sheathing of the articles are also described. Gradient index optical...
08/17/2004
6703100Disk-like recording medium and method for producing the same
A recording medium for information signals including a substrate, a signal recording layer provided on one major surface of the substrate and a clamp member having a positioning unit at its center portion and formed of a material that can be magnetically ...
03/09/2004
6682666Object with radially varying refractive index, and producing method and apparatus thereof
Disclosed herein is a method of producing an object having a refractive index which varies radially from the central portion of the object toward the peripheral portion thereof. Also, an object produced by the method and an apparatus for carrying out the ...
01/27/2004
6579476Method for molding ophthalmic lenses made of plastic material
A method for molding a plastic ophthalmic lens which comprises introducing a liquid polymerizable composition in a molding cavity of a two-piece mold through a filling nozzle in flow communication with the upper half of the molding cavity and spaced apart...
06/17/2003
6576167Methods and apparatus for eyeglass curing using ultraviolet light and improved cooling
Method and apparatus for making and coating a plastic lens. Oxygen barrier containing photoinitiator is used to cure incompletely cured lens portions. Radiation pulses are used to control lens curing rate. Lens is posted while in a mold cavity using a con...
06/10/2003
6564587Method of producing an optical fiber by gathering material from a molten bath
A starting material for producing optical fibers contains metal halides. The refractive index of the optical fiber formed from the starting marterial is predeterminable by adjusting a composite of the molten bath. The starting material is produced by mixi...
05/20/2003
6533426Method of centrifugally casting a parabolic membrane mirror having a shape-restorative force
A method for fabricating an optical quality, free-standing, compliant parabolic membrane mirror using an inverted parabolic mandrel created by rotating a liquid confined to a cylindrical polymer and applying a reflective optical stress coating once the su...
03/18/2003
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