Patents by Inventor Philip Kim
Philip Kim 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: 8445893Abstract: An apparatus or method can include forming a graphene layer including a working surface, forming a polyvinyl alcohol (PVA) layer upon the working surface of the graphene layer, and forming a dielectric layer upon the PVA layer. In an example, the PVA layer can be activated and the dielectric layer can be deposited on an activated portion of the PVA layer. In an example, an electronic device can include such apparatus, such as included as a portion of graphene field-effect transistor (GFET), or one or more other devices.Type: GrantFiled: July 19, 2010Date of Patent: May 21, 2013Assignee: Trustees of Columbia University in the City of New YorkInventors: Inanc Meric, Kenneth Shepard, Noah J. Tremblay, Philip Kim, Colin P. Nuckolls
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Publication number: 20120107562Abstract: Methods for graphene-assisted fabrication of a surface on a substrate are disclosed herein. In an exemplary method, fabricating an etched surface on a substrate includes, depositing at least one layer of graphene on the surface on the substrate, patterning the deposited layer of graphene, and exposing the surface on a substrate to an acid to etch the surface on the substrate. The method can further include forming the layer of graphene from graphite. In some embodiments, the layer of graphene is formed by mechanically exfoliating the layer of graphene from the graphite. Alternatively, the layer of graphene can be formed by chemically exfoliating the graphene from the graphite, or other carbon materials, and/or utilizing vapor deposition to form the layer of graphene from the graphite, or other carbon materials.Type: ApplicationFiled: May 31, 2011Publication date: May 3, 2012Applicant: The Trustees Of Columbia University In The City OfInventors: Kirill Bolotin, Martin Klima, Horst Stormer, Philip Kim, James Hone
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Publication number: 20120064246Abstract: Ultralong carbon nanotubes can be formed by placing a secondary chamber within a reactor chamber to restrict a flow to provide a laminar flow. Inner shells can be successively extracted from multi-walled carbon nanotubes (MWNTs) such as by applying a lateral force to an elongated tubular sidewall at a location between its two ends. The extracted shells can have varying electrical and mechanical properties that can be used to create useful materials, electrical devices, and mechanical devices.Type: ApplicationFiled: November 21, 2011Publication date: March 15, 2012Applicants: Pohang University of Science and Technology, The Trustees of Columbia University in the City of New YorkInventors: Philip Kim, Byung Hee Hong, Ju Young Lee, Kwang S. Kim
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Patent number: 8080281Abstract: Ultralong carbon nanotubes can be formed by placing a secondary chamber within a reactor chamber to restrict a flow to provide a laminar flow. Inner shells can be successively extracted from multi-walled carbon nanotubes (MWNTs) such as by applying a lateral force to an elongated tubular sidewall at a location between its two ends. The extracted shells can have varying electrical and mechanical properties that can be used to create useful materials, electrical devices, and mechanical devices.Type: GrantFiled: March 27, 2009Date of Patent: December 20, 2011Assignees: The Trustees of Columbia University in the City of New York, Pohang University of Science and TechnologyInventors: Philip Kim, Byung Hee Hong, Ju Young Lee, Kwang S. Kim
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Patent number: 7928432Abstract: The present invention generally relates to the fabrication of molecular electronics devices from molecular wires and Single Wall Nanotubes (SWNT). In one embodiment, the cutting of a SWNT is achieved by opening a window of small width by lithography patterning of a protective layer on top of the SWNT, followed by applying an oxygen plasma to the exposed SWNT portion. In another embodiment, the gap of a cut SWNT is reconnected by one or more difunctional molecules having appropriate lengths reacting to the functional groups on the cut SWNT ends to form covalent bonds. In another embodiment, the gap of a cut SWNT gap is filled with a self-assembled monolayer from derivatives of novel contorted hexabenzocoranenes. In yet another embodiment, a device based on molecular wire reconnecting a cut SWNT is used as a sensor to detect a biological binding event.Type: GrantFiled: June 13, 2008Date of Patent: April 19, 2011Assignee: The Trustees Of Columbia University In The City Of New YorkInventors: Colin Nuckolls, Xuefeng Guo, Philip Kim
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Publication number: 20110017979Abstract: An apparatus or method can include forming a graphene layer including a working surface, forming a polyvinyl alcohol (PVA) layer upon the working surface of the graphene layer, and forming a dielectric layer upon the PVA layer. In an example, the PVA layer can be activated and the dielectric layer can be deposited on an activated portion of the PVA layer. In an example, an electronic device can include such apparatus, such as included as a portion of graphene field-effect transistor (GFET), or one or more other devices.Type: ApplicationFiled: July 19, 2010Publication date: January 27, 2011Applicant: The Trustees of Columbia University in the City of New YorkInventors: Inanc Meric, Kenneth Shepard, Noah J. Tremblay, Philip Kim, Colin P. Nuckolls
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Publication number: 20090297847Abstract: Ultralong carbon nanotubes can be formed by placing a secondary chamber within a reactor chamber to restrict a flow to provide a laminar flow. Inner shells can be successively extracted from multi-walled carbon nanotubes (MWNTs) such as by applying a lateral force to an elongated tubular sidewall at a location between its two ends. The extracted shells can have varying electrical and mechanical properties that can be used to create useful materials, electrical devices, and mechanical devices.Type: ApplicationFiled: March 27, 2009Publication date: December 3, 2009Applicant: The Trustees of Columbia University in the City of New YorkInventors: Philip Kim, Byung Hee Hong, Ju Young Lee, Kwang S. Kim
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Publication number: 20090140801Abstract: A locally gated graphene nanostructure is described, along with methods of making and using the same. A graphene layer can include first and second terminal regions separated by a substantially single layer gated graphene nanoconstriction. A local first gate region can be separated from the graphene nanoconstriction by a first gate dielectric. The local first gate region can be capacitively coupled to gate electrical conduction in the graphene nanoconstriction. A second gate region can be separated from the graphene nanoconstriction by a second gate dielectric. The second gate region can be capacitively coupled to provide a bias to a first location in the graphene nanoconstriction and to a second location outside of the graphene nanoconstriction. Methods of making and using locally gated graphene nanostructures are also described.Type: ApplicationFiled: October 31, 2008Publication date: June 4, 2009Applicant: The Trustees of Columbia University in the City of New YorkInventors: Barbaros Ozyilmaz, Dmitri Efetov, Pablo Jarillo-Herrero, Melinda Y. Han, Philip Kim
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Publication number: 20090027036Abstract: The present invention generally relates to the fabrication of molecular electronics devices from molecular wires and Single Wall Nanotubes (SWNT). In one embodiment, the cutting of a SWNT is achieved by opening a window of small width by lithography patterning of a protective layer on top of the SWNT, followed by applying an oxygen plasma to the exposed SWNT portion. In another embodiment, the gap of a cut SWNT is reconnected by one or more difunctional molecules having appropriate lengths reacting to the functional groups on the cut SWNT ends to form covalent bonds. In another embodiment, the gap of a cut SWNT gap is filled with a self-assembled monolayer from derivatives of novel contorted hexabenzocoranenes. In yet another embodiment, a device based on molecular wire reconnecting a cut SWNT is used as a sensor to detect a biological binding event.Type: ApplicationFiled: June 13, 2008Publication date: January 29, 2009Applicant: The Trustees Of Columbia University In The City Of New YorkInventors: Colin Nuckolls, Xuefeng Guo, Philip Kim, Shengxiong Xiao, Mathew Benjamin Myers
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Publication number: 20090017571Abstract: The present invention generally relates to the fabrication of molecular electronics devices from molecular wires and Single Wall Nanotubes (SWNT). In one embodiment, the cutting of a SWNT is achieved by opening a window of small width by lithography patterning of a protective layer on top of the SWNT, followed by applying an oxygen plasma to the exposed SWNT portion. In another embodiment, the gap of a cut SWNT is reconnected by one or more difunctional molecules having appropriate lengths reacting to the functional groups on the cut SWNT ends to form covalent bonds. In another embodiment, the gap of a cut SWNT gap is filled with a self-assembled monolayer from derivatives of novel contorted hexabenzocoranenes. In yet another embodiment, a device based on molecular wire reconnecting a cut SWNT is used as a sensor to detect a biological binding event.Type: ApplicationFiled: June 13, 2008Publication date: January 15, 2009Applicant: The Trustees Of Columbia University In The City Of New YorkInventors: Colin Nuckolls, Xuefeng Guo, Philip Kim
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Publication number: 20070292601Abstract: The present invention generally relates to the fabrication of molecular electronics devices from molecular wires and Single Wall Nanotubes (SWNT). In one embodiment, the cutting of a SWNT is achieved by opening a window of small width by lithography patterning of a protective layer on top of the SWNT, followed by applying an oxygen plasma to the exposed SWNT portion. In another embodiment, the gap of a cut SWNT is reconnected by one or more difunctional molecules having appropriate lengths reacting to the functional groups on the cut SWNT ends to form covalent bonds. In another embodiment, the gap of a cut SWNT gap is filled with a self-assembled monolayer from derivatives of novel contorted hexabenzocoranenes. In yet another embodiment, a device based on molecular wire reconnected a cut SWNT is used as a sensor to detect a biological binding event.Type: ApplicationFiled: December 4, 2006Publication date: December 20, 2007Inventors: Colin Nuckolls, Xuefeng Guo, Philip Kim, Shengxiong Xiao, Matthew Myers
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Publication number: 20060225634Abstract: A floating structure is floatable in a body of liquid and stabilized with respect to at least one of roll and pitch. Such a structure includes: a hull including compartments, each compartment being open at the bottom thereof relative to a horizontal plane, and being adapted to accommodate ingress by the body of liquid; a negative pressure source to negatively pressure a volume above a level of the liquid in at least one of the compartments; and one or more arrangements by which at least one or more other of the compartments can be made to exhibit a positive buoyancy.Type: ApplicationFiled: March 22, 2006Publication date: October 12, 2006Inventors: Yong Cho, Philip Kim
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Publication number: 20060216115Abstract: A water wave energy-dissipation apparatus for one or more water waves propagating in a direction includes: a support structure at least a portion of which is proximate to a median of the water surface; and a surface inclined at an acute angle relative to the propagation direction, the inclined surface being supported by the support structure located aside of it and being located adjacent the water surface so as to define a substantially open region between the inclined surface and the water surface, the surface having apertures, a surface area of each aperture, Aapert, being at least about two orders of magnitude smaller than a fictional total area of the inclined surface excluding apertures, Afict.Type: ApplicationFiled: March 22, 2006Publication date: September 28, 2006Inventors: Yong Cho, Philip Kim
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Publication number: 20060147271Abstract: A portable flood-barrier-system can include a portable block of substantial mass; and a deflatable bladder, a first portion of which is disposed on a substrate; the block being disposed at least partly on the first portion of the bladder so as to releasably compress the first portion between the block and the substrate and so releasably hold the first portion therebetween due to friction.Type: ApplicationFiled: November 15, 2005Publication date: July 6, 2006Inventors: Yong Cho, Philip Kim
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Publication number: 20060022358Abstract: The distributed bubble generating system intakes air and delivers this air at maximum capacity to the solution in the long-channel shape bubble generating units. The air is blown through the firm sponge type filters of the bubble generating units, which are submerged in the solution. This configuration provides the capability of rapid and effective generation of bubbles.Type: ApplicationFiled: July 30, 2004Publication date: February 2, 2006Inventors: Yong Cho, Philip Kim
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Publication number: 20060022361Abstract: An arrangement to generate foam, the arrangement comprising: a porous material; a plenum having an aperture disposed to supply gas to the porous material; and a tub containing a foamable liquid, disposed to at least partially submerge the porous material in the foamable liquid; foam being generated as the gas is injected via the porous material into the foamable liquid.Type: ApplicationFiled: August 5, 2005Publication date: February 2, 2006Inventors: Yong Cho, Philip Kim
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Patent number: 6743408Abstract: A method of producing carbon single wall nanotubes (SWNT) by CVD is disclosed. The SWNTs are grown on a metal-catalyzed support surface, such as a commercially available silicon tips for atomic force microscopes (AFM). The growth characteristics of the SWNTs can be controlled by adjusting the density of the catalyst and the CVD growth conditions. The length of the SWNTs can be adjusted through pulsed electrical etching. Nanotubes of this type can find applications in nanotubes structures with defined patterns and for nano-tweezers. Nano-tweezers may be useful for manipulating matter, such as biological material, on a molecular level.Type: GrantFiled: September 28, 2001Date of Patent: June 1, 2004Assignee: President and Fellows of Harvard CollegeInventors: Charles M. Lieber, Jason H. Hafner, Chin Li Cheung, Philip Kim
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Publication number: 20020122766Abstract: A method of producing carbon single wall nanotubes (SWNT) by CVD is disclosed. The SWNTs are grown on a metal-catalyzed support surface, such as a commercially available silicon tips for atomic force microscopes (AFM). The growth characteristics of the SWNTs can be controlled by adjusting the density of the catalyst and the CVD growth conditions. The length of the SWNTs can be adjusted through pulsed electrical etching. Nanotubes of this type can find applications in nanotubes structures with defined patterns and for nano-tweezers. Nano-tweezers may be useful for manipulating matter, such as biological material, on a molecular level.Type: ApplicationFiled: September 28, 2001Publication date: September 5, 2002Inventors: Charles M. Lieber, Jason H. Hafner, Chin Li Cheung, Philip Kim