Patents Assigned to Corning
-
Patent number: 6476123Abstract: Certain crosslinked organic particles exhibit a very good affinity for organic oils such as mineral oils and synthetic oils. They also exhibit a suitable affinity for silicone oils. Highly efficient methods for preparing crosslinked organic particles are provided. The crosslinked organic particles in the form of a suspension containing the particles have excellent handling properties, and are highly blendable with other components. Highly efficient methods for preparing such suspensions are also provided.Type: GrantFiled: July 26, 2000Date of Patent: November 5, 2002Assignee: Dow Corning Toray Silicone Co., Ltd.Inventors: Yoshitsugu Morita, Kazuo Kobayashi, Ryuji Tachibana
-
Patent number: 6477297Abstract: A method of assembling an optical system includes the steps of: (i) selecting, from a plurality of optical fibers characterized by a common nominal cut-off wavelength &lgr;cn and an actual cut-off wavelength &lgr;c such that the cut-off wavelength &lgr;c of each one of this plurality of fibers is the same as the nominal cut-off wavelength &lgr;cn or differs slightly from the nominal cut-off wavelength due to manufacturing tolerances, only fibers with &lgr;c>&lgr;min, where &lgr;min is a predetermined minimum acceptable cut-off wavelength of the selected fibers; and (ii) bending at least one section of at least one of these selected fibers such that this bent section has a bend radius R, where 12 mm<R<18 mm.Type: GrantFiled: March 8, 2000Date of Patent: November 5, 2002Assignee: Corning IncorporatedInventors: Jeffery A. DeMeritt, Zagorka D. Gaeta, Peter G. Wigley
-
Patent number: 6476103Abstract: The present invention deals with a novel photochromic organic material, the use of at least one plasticizer for the preparation of said novel material, said preparation and photochromic articles constituted wholly or in part of said novel material. The intervening plasticizer, advantageously a phthalate, is according to a variant simply dispersed in the polymer matrix, or, according to another variant, chemically bound to said polymer matrix. Said novel material possesses remarkable photochromic properties together with interesting optical and mechanical properties.Type: GrantFiled: March 17, 1999Date of Patent: November 5, 2002Assignee: Corning IncorporatedInventors: Bruno Baney, David Henry
-
Patent number: 6475682Abstract: The invention provides optical projection lithography methods, photolithography photomasks, and optical photolithography mask blanks for use in optical photolithography systems utilizing deep ultraviolet light (DUV) wavelengths below 300 nm, such as DUV projection lithography systems utilizing wavelengths in the 248 nm region and the 193 nm region. The invention provides improved production of lithography patterns by inhibiting polarization mode dispersion of lithography light utilizing low birefringence mask blanks and photomasks.Type: GrantFiled: February 4, 2002Date of Patent: November 5, 2002Assignee: Corning IncorporatedInventors: Richard S. Priestley, Daniel R. Sempolinski, Chunzhe C. Yu
-
Patent number: 6477299Abstract: The invention includes environmentally stable athermalized optical fiber gratings and methods of making such stabilized optical waveguide fiber grating. Stable humidity-resistant athermalized fiber Bragg gratings are provided by stabilizing a negative thermal expansion substrate and utilizing a durable frit to attach the fiber Bragg grating to the substrate.Type: GrantFiled: March 20, 2000Date of Patent: November 5, 2002Assignee: Corning IncorporatedInventors: George H. Beall, Joel P. Carberry, Kenneth Chyung, Joseph E. Pierson, Kamjula P. Reddy, James E. Webb
-
Patent number: 6477305Abstract: A cylindrical glass body having a low water content centerline region and method of manufacturing such a cylindrical glass body for use in the manufacture of optical waveguide fiber is disclosed. The centerline region of the cylindrical glass body has a water content sufficiently low such that an optical waveguide fiber made from the cylindrical glass body of the present invention exhibits an optical attenuation of less than about 0.35 dB/km, and preferably less than about 0.31 dB/km at a measured wavelength of 1380 nm. A low water content plug used in the manufacture of such a cylindrical glass body, an optical waveguide fiber having a low water peak, and an optical fiber communication system incorporating such an optical waveguide fiber is also disclosed.Type: GrantFiled: April 11, 2000Date of Patent: November 5, 2002Assignee: Corning IncorporatedInventors: George E. Berkey, Dana C. Bookbinder, Richard M. Fiacco, Cynthia B. Giroux, Daniel W. Hawtof, Dale R. Powers, V. Srikant
-
Patent number: 6471812Abstract: A method of reducing humping of a laminated roofing shingle when the shingle is stacked with others of the shingle involves shingles that include a longitudinal central area having an overlay laminated with an underlay. The method involves providing a depression in the shingle that extends through at least a portion of the central area. In another embodiment, the invention is a method of reducing humping of a laminated roofing shingle including an overlay, an underlay, and an adhesive between the overlay and the underlay in an area of the shingle. The method involves providing a depression in the shingle that extends through at least a portion of the adhesive area. In a further embodiment, the invention is a method of reducing humping of a roofing shingle having a sealant in an area of the shingle. The method involves providing a depression in the shingle that extends through at least a portion of the sealant area.Type: GrantFiled: September 3, 1999Date of Patent: October 29, 2002Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: Thomas Kent Thompson, David Brian Ollett
-
Patent number: 6473545Abstract: The present invention relates to optical MEMS components, and in particular, to a micromechanical optical switch. A removable layer is used during fabrication to define the gap between optical waveguides and a moveable element in the form of a mirror that is moved between states. This provides a high speed, low-power optical switch that is readily manufacturable.Type: GrantFiled: February 26, 2002Date of Patent: October 29, 2002Assignee: Corning IncorporatedInventors: Sandeep Akkaraju, Carlos Mastrangelo, Nan Iyer
-
Publication number: 20020154846Abstract: An athermalized integrated optical waveguide device in which thermal spectral shifts are inhibited is provided and in which the light transmitting properties are insensitive to temperature variations and fluctuations. The athermalized integrated optical waveguide device has at least two waveguide core arms, preferably comprised of a silica glass, with the core arms cladded with a waveguide cladding composition, preferably a silica glass that has a boron concentration different than the cores. The first waveguide arm and the second waveguide arm have a difference in an effective index thermal slope in order to provide an athermalized device such as an intereferometer on a substantially planar substrate. In addition the at least two waveguide core arms are comprised of path segments having different waveguide core dimensions.Type: ApplicationFiled: February 2, 2001Publication date: October 24, 2002Applicant: Corning IncorporatedInventors: Daniel A. Nolan, Denis M. Trouchet, David L. Weidman
-
Publication number: 20020154420Abstract: An optical assembly (11) is formed by individually positioning a plurality of prisms (15) using mechanical reference surfaces (19) which are associated with the prism's diagonal (13) and are preferably formed by extensions of a first sub-prism (17A) beyond a second sub-prism (17B). The mechanical references surfaces and a first side of the prism engage fixed mechanical references (23) associated with a housing. A locking element (21) engages a second side of the prism and forces the mechanical reference surfaces and the first side of the prism against the fixed mechanical references to achieve accurate positioning of the prism's diagonal (13).Type: ApplicationFiled: April 15, 2002Publication date: October 24, 2002Applicant: Corning Precision Lens IncorporatedInventors: Simon Magarill, Blake E. Sansbury
-
Patent number: 6468442Abstract: A composition for reducing the buildup of snow and ice on a surface. The composition includes a sugar-water mixture having approximately 15 to 80 percent by weight of a sugar solid, wherein the sugar solid contains approximately 2-60 percent by weight of a monosaccharide.Type: GrantFiled: December 19, 2001Date of Patent: October 22, 2002Assignee: Minnesota Corn Processors, LLCInventor: Stephen C. Bytnar
-
Patent number: 6470131Abstract: A polyester having less than 50 hydrogen-carbon bonds per 1000 molecular weight units exhibits very low optical loss in the range of wavelengths commonly used for optical communication, and exhibits other physical properties suitable for use as a waveguide core material and/or a waveguide cladding material in optical fibers and/or planar optical devices.Type: GrantFiled: November 3, 2000Date of Patent: October 22, 2002Assignee: Corning IncorporatedInventors: Keith A. Horn, Thomas M. Leslie, James V. Suggs, Mingqian He
-
Patent number: 6470121Abstract: A fiber optic cable component, for example, an optical ribbon (20,22,24,26), individual optical fiber, fiber bundle, or a non-optical fiber component, having a radiation markable section, the radiation markable section including a radiation reactive ingredient compounded with a base matrix material, and methods for creating markings in the radiation markable section. When irradiated with a suitable radiation source, a photochemical reaction occurs that creates markings in the radiation markable section, so that the ribbon classification task may be done with ease and reliability. The marking of fiber optic cable components according to the present invention may, for example, be accomplished by a radiation source of the laser type.Type: GrantFiled: December 24, 2001Date of Patent: October 22, 2002Assignee: Corning Cable Systems LLCInventors: Gregory A. Mills, Gregory A. Lochkovic
-
Patent number: 6468374Abstract: The present invention describes an extrusion process for manufacturing a glass honeycomb structure having a variety of shapes and sizes depending on its ultimate application. Unlike prior art honeycomb structures made from ceramics, the inventive glass honeycomb can be readily viscously bent and/or redrawn. Furthermore, the inventive honeycomb structure is lightweight, yet able to support heavy loads on its end faces. Therefore, the inventive honeycomb can be used as a light-weight support for such objects as mirrors. These honeycombs can be used singularly or in aggregates to provide such support. Embodiments are described wherein the mass of the honeycomb is further reduced by removing select portions of the honeycomb without deleteriously impacting its ability for load bearing.Type: GrantFiled: February 17, 2000Date of Patent: October 22, 2002Assignee: Corning IncorporatedInventors: Gitimoy Kar, Kenneth E. Hrdina, John F. Wight, Jr., C. Charles Yu
-
Patent number: 6468103Abstract: An insulation displacement connector includes a first member and a second member movable relative to the first member between a first position wherein the second member is electrically connected to the first member and a second position wherein the second member is electrically connected to the first member and to the insulated electrical conductor. The insulation displacement connector is disposed within an internal cavity defined by a non-conductive housing. A stuffer is disposed within the cavity and the insulated electrical conductor is disposed within a wire insertion channel formed in the housing and extending into the cavity. The stuffer is moved in a direction substantially parallel to the insulated electrical conductor so that the second member moves from the first position to the second position in a direction substantially perpendicular to the insulated electrical conductor to establish the electrical connection.Type: GrantFiled: April 23, 2001Date of Patent: October 22, 2002Assignee: Corning Cable Systems LLCInventor: Boyd G. Brower
-
Patent number: 6467313Abstract: The present invention discloses novel methods for fabricating glass articles, particularly optical fiber glass preforms, which may contain alumina, yttrium, lanthanum, erbium, or other rare earth metals as dopants. The glass articles made in accordance with the present invention exhibit radially uniform dopant profiles relative to conventional dopant methods. In addition, the overall concentration of the dopant is increased relative to analogous dopant methods.Type: GrantFiled: June 9, 2000Date of Patent: October 22, 2002Assignee: Corning IncorporatedInventors: Polly W. Chu, Lisa A. Moore, Michelle D. Pierson-Stull
-
Patent number: 6469115Abstract: A method for preparing a moisture-curable, virtually telechelic, silyl-functional polyisobutylene is disclosed, said method comprising reacting, in the presence of a Lewis acid, (A) isobutylene; (B) an initiator of the formula (C) a styryl comonomer of the formula wherein R is selected from H or methyl group, R′ is a divalent non-aromatic hydrocarbon group having 1 to 6 carbon atoms, R″ is independently selected from alkyl groups having 1 to 10 carbon atoms or aryl groups having 6 to 10 carbon atoms, R′″ is a divalent non-aromatic hydrocarbon group having 2 to 6 carbon atoms, X is independently a halogen group, Y is halogen and n is independently 1, 2 or 3.Type: GrantFiled: May 16, 2000Date of Patent: October 22, 2002Assignees: Dow Corning Corporation, University of Massachusetts LowellInventors: Rudolf Faust, Savvas E. Hadjikyriacou, Aroop Kumar Roy, Toshio Suzuki
-
Patent number: 6468325Abstract: The present invention provides a method of making a ceramic filter, by forming a mixture from NZP-forming raw material powders selected from metal oxide sources capable of reacting to form a reaction product comprising an NZP-type phase having the general formula R1+(y/2)Zr4P6−ySiyO24 where 0≦y≦1.0 and R is one or more of the metals Ca, Sr, and Ba, pre-reacted powder having the same general formula, and mixtures thereof; and a precursor additive selected from the group consisting of silica precursor, zirconia precursor, and mixtures thereof; shaping the mixture into a green structure; and, firing the green structure to produce a ceramic filter having an open porosity of at least 35% by volume, a median pore size of at least 8 micrometers and a permeability of at least 0.30×10−12 m2, and being suitable as a diesel particulate filter.Type: GrantFiled: October 5, 2000Date of Patent: October 22, 2002Assignee: Corning IncorporatedInventors: Willard A. Cutler, Gregory A. Merkel
-
Patent number: 6465058Abstract: A method of applying blend drop granules to an asphalt coated sheet includes moving an asphalt coated sheet in a machine direction, and depositing blend drops of granules on a blend drop conveyor that is positioned above the asphalt coated sheet. The blend drop conveyor has an upper flight moving in a direction opposite the machine direction and a lower flight moving in the machine direction. The blend drops are moved from the upper flight to the lower flight of the blend drop conveyor while retaining the blend drops in contact with the blend drop conveyor by magnetic force. Finally. The blend drops are released from the blend drop conveyor for contact with the asphalt coated sheet.Type: GrantFiled: October 29, 2001Date of Patent: October 15, 2002Assignee: Owens Corning Fiberglas Technology, Inc.Inventors: William Huykman, David P. Aschenbeck, John D. Phillips
-
Patent number: 6466365Abstract: The invention provides coated optical lithography elements and methods of coating optical elements, and particularly optical photolithography elements for use in below 240 nm optical photolithography systems utilizing vacuum ultraviolet light (VUV) lithography wavelengths no greater than about 193 nm, such as VUV projection lithography systems utilizing wavelengths in the 193 nm or 157 nm region. The optical devices manipulate vacuum ultraviolet lithography light less than 250 nm utilizing a deposited silicon oxyfluoride film. The deposited silicon oxyfluoride optical coating assists in the manipulation of incident light and protects the underlying optical materials, layers, and surfaces.Type: GrantFiled: May 10, 2000Date of Patent: October 15, 2002Assignee: Corning IncorporatedInventors: Robert L. Maier, Lisa A. Moore, Charlene M. Smith