Patents by Inventor Kwok Wai Lem
Kwok Wai Lem has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 7960027Abstract: Transparent conductors and methods for fabricating transparent conductors are provided. In one exemplary embodiment, a transparent conductor comprises a substrate having a surface and a transparent conductive coating disposed on the surface of the substrate. The transparent conductive coating has a plurality of conductive components of at least one type and an aliphatic isocyanate-based polyurethane component.Type: GrantFiled: January 28, 2008Date of Patent: June 14, 2011Assignee: Honeywell International Inc.Inventors: James V. Guiheen, Yubing Wang, Peter A. Smith, Kwok Wai Lem
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Patent number: 7727578Abstract: Transparent conductors and methods for fabricating transparent conductors are provided. In one exemplary embodiment, a method for fabricating a transparent conductor comprises forming a dispersion comprising a plurality of conductive components and a solvent, applying the dispersion to a substrate in an environment having a predetermined atmospheric humidity that is based on a selected surface resistivity of the transparent conductor, and causing the solvent to at least partially evaporate such that the plurality of conductive components remains overlying the substrate.Type: GrantFiled: December 27, 2007Date of Patent: June 1, 2010Assignee: Honeywell International Inc.Inventors: James V. Guiheen, Lingtao Yu, Kwok-Wai Lem
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Publication number: 20090189124Abstract: Transparent conductors and methods for fabricating transparent conductors are provided. In one exemplary embodiment, a transparent conductor comprises a substrate having a surface and a transparent conductive coating disposed on the surface of the substrate. The transparent conductive coating has a plurality of conductive components of at least one type and an aliphatic isocyanate-based polyurethane component.Type: ApplicationFiled: January 28, 2008Publication date: July 30, 2009Applicant: HONEYWELL INTERNATIONAL, INC.Inventors: James V. Guiheen, Yubing Wang, Peter A. Smith, Kwok Wai Lem
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Publication number: 20090166055Abstract: Transparent conductors and methods for fabricating transparent conductors are provided. In one exemplary embodiment, a method for fabricating a transparent conductor comprises forming a dispersion comprising a plurality of conductive components and a solvent, applying the dispersion to a substrate in an environment having a predetermined atmospheric humidity that is based on a selected surface resistivity of the transparent conductor, and causing the solvent to at least partially evaporate such that the plurality of conductive components remains overlying the substrate.Type: ApplicationFiled: December 27, 2007Publication date: July 2, 2009Applicant: HONEYWELL INTERNATIONAL, INC.Inventors: James V. Guiheen, Lingtao Yu, Kwok-Wai Lem
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Publication number: 20090056589Abstract: Transparent conductors and methods for fabricating transparent conductors are provided. A method for fabricating a transparent conductor comprises providing a stretchable transparent substrate. A dispersion comprising a plurality of conductive elements and a solvent is formed. The dispersion is applied overlying the stretchable transparent substrate. The solvent is at least partially evaporated to form a transparent conductive coating on the stretchable transparent substrate and the substrate and the transparent conductive coating are stretched.Type: ApplicationFiled: August 29, 2007Publication date: March 5, 2009Applicant: HONEYWELL INTERNATIONAL, INC.Inventors: James V. Guiheen, Yuan-Ping R. Ting, Gary L. Martin, Yubing Wang, Kwok Wai Lem
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Publication number: 20060286686Abstract: A method of manufacturing an integrated light emitting diode display is provided. In one exemplary embodiment, the method includes the step of biologically forming a pn junction over a substrate, the pn junction capable of emitting a light having a predetermined color upon the application of energy thereto. In another exemplary embodiment, a method of manufacturing a light emitting diode is provided. The method includes depositing a biological material over the substrate, the biological material having an affinity for a pn junction material, and exposing the deposited biological material to the first pn junction material to form a doped area of a pn junction. In still another exemplary embodiment, a light emitting diode is provided. The light emitting diode includes a substrate and a biologically formed pn junction disposed over the substrate, wherein light having a predetermined color is emitted upon application of energy to the pn junction.Type: ApplicationFiled: November 28, 2005Publication date: December 21, 2006Inventors: Kwok-Wai Lem, Brian Walker, Kalluri Sarma, Peter Smith
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Patent number: 6893489Abstract: A coating, such as ink or paint, is used, where particles in the coating are selected based on electric, magnetic, or light/photo properties, and are dispersed in the coating to provide a desired physical color. In one approach, the application of the coating to the substrate such as paper is controlled using an electric or magnetic field. In another approach, a pattern is formed in a coating on a substrate by targeting an electric, magnetic or photo field to specific locations on the coating. In yet another approach, the color of a coating that is applied to an object is shifted to match a background color so that the coating appears to be erased. In this approach, the coating may be in the form of a label, such as a bar code, that can be read by a scanner at a point of sale location. In another approach a pattern or code is scrambled or removed by applying an electric, magnetic, or photo field to specific locations on the coating or substrate.Type: GrantFiled: December 20, 2001Date of Patent: May 17, 2005Assignee: Honeywell International Inc.Inventors: Kwok-Wai Lem, Ronald P. Rohrbach
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Publication number: 20030194578Abstract: Security articles comprising elements such as filaments, fibers, including hollow fibers, and threads and thin transverse sections and chopped versions thereof, wherein such elements are dispersed within the articles. Particle scattering and luminescent technology is employed based on scattering, electronic, magnetic and/or light properties to provide compound physical coloration responsive to various portions of the electromagnetic spectrum, including ultraviolet, ambient and infrared. The coloration effects can be highly stable or dependent on specific switching effects linked to, e.g., thermal exposure or actinic radiation. The security articles result in advanced levels of security to avoid counterfeiting of objects including banknote and currency paper, stock and bond certificates, identification, credit, debit and ATM cards, drivers' licenses and bar codes.Type: ApplicationFiled: December 2, 2002Publication date: October 16, 2003Applicant: Honeywell International, Inc.Inventors: Thomas Y. Tam, Samir Z. Abdalla, Kwok-Wai Lem, Juergen Wieczoreck
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Patent number: 6610395Abstract: The formation of articles using a breathable, electromagnetic shielding material. More particularly, a material and process for the formation of articles capable of shielding electromagnetic waves while allowing the release of thermal energy. Electromagnetic shielding powder particles are infused into cavities of multilobal polymeric fibers and between the fibers forming a flexible, breathable electromagnetic shielding material suitable for forming shaped articles.Type: GrantFiled: June 11, 2001Date of Patent: August 26, 2003Assignee: Honeywell International Inc.Inventors: Ronald P. Rohrbach, David Nathasingh, Kwok-Wai Lem
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Publication number: 20030116747Abstract: A coating, such as ink or paint, is used, where particles in the coating are selected based on electric, magnetic, or light/photo properties, and are dispersed in the coating to provide a desired physical color. In one approach, the application of the coating to the substrate such as paper is controlled using an electric or magnetic field. In another approach, a pattern is formed in a coating on a substrate by targeting an electric, magnetic or photo field to specific locations on the coating. In yet another approach, the color of a coating that is applied to an object is shifted to match a background color so that the coating appears to be erased. In this approach, the coating may be in the form of a label, such as a bar code, that can be read by a scanner at a point of sale location. In another approach a pattern or code is scrambled or removed by applying an electric, magnetic, or photo field to specific locations on the coating or substrate.Type: ApplicationFiled: December 20, 2001Publication date: June 26, 2003Inventors: Kwok-Wai Lem, Ronald P. Rohrbach
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Publication number: 20020187330Abstract: The formation of articles using a breathable, electromagnetic shielding material. More particularly, a material and process for the formation of articles capable of shielding electromagnetic waves while allowing the release of thermal energy. Electromagnetic shielding powder particles are infused into cavities of multilobal polymeric fibers and between the fibers forming a flexible, breathable electromagnetic shielding material suitable for forming shaped articles.Type: ApplicationFiled: June 11, 2001Publication date: December 12, 2002Inventors: Ronald P. Rohrbach, David Nathasingh, Kwok-Wai Lem
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Patent number: 6414066Abstract: A composition comprising a binder and a residue wherein the residue comprises a blend of polypropylene, styrene butadiene rubber and calcium carbonate. The residue is a novel material derived as a coproduct from the medium-pressure depolymerization of nylon 6 carpet. The compositions are useful as road asphalt, asphalt roof membranes, molding compounds, and plastic lumber such as palisades and spacers.Type: GrantFiled: November 20, 2000Date of Patent: July 2, 2002Assignee: AlliedSignal Inc.Inventors: Kwok Wai Lem, Alan Letton, Thomas Paul John Izod, Francis Stephen Lupton, William Brian Bedwell
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Patent number: 6214908Abstract: A composition comprising a binder and a residue wherein the residue comprises a blend of polypropylene, styrene butadiene rubber and calcium carbonate. The residue is a novel material derived as a coproduct from the medium-pressure depolymerization of nylon 6 carpet. The compositions are useful as road asphalt, asphalt roof membranes, molding compounds, and plastic lumber such as palisades and spacers.Type: GrantFiled: July 19, 1999Date of Patent: April 10, 2001Assignee: AlliedSignal Inc.Inventors: Kwok Wai Lem, Alan Letton, Thomas Paul John Izod, Francis Stephen Lupton, William Brian Bedwell