Patents by Inventor Jennifer Nam Cha

Jennifer Nam Cha 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).

  • Patent number: 9540679
    Abstract: A structure and method for forming single-stranded DNA segments/single-wall carbon nanotube complexes and a method of preparing single-stranded DNA segments. The method for forming single-stranded DNA segments/single-wall carbon nanotube complexes including: attaching single-stranded DNA segments to single-wall carbon nanotubes to form single-stranded DNA segment/single-wall carbon nanotube complexes, each of the single-stranded DNA segments having a same length of greater than 2,000 bases.
    Type: Grant
    Filed: October 6, 2009
    Date of Patent: January 10, 2017
    Assignee: International Business Machines Corporation
    Inventor: Jennifer Nam Cha
  • Patent number: 8784966
    Abstract: A method of forming a material. A self-assembling block copolymer that includes a first block species and a second block species respectively characterized by a volume fraction of F1 and F2 with respect to the self-assembling block copolymer is provided. At least one crosslinkable polymer that is miscible with the second block species is provided. The self-assembling block copolymer and the at least one crosslinkable polymer are combined to form a mixture. The mixture having a volume fraction, F3, of the crosslinkable polymer, a volume fraction, F1A, of the first block species, and a volume fraction, F2A, of the second block species is formed. A material having a predefined morphology where the sum of F2A and F3 were preselected is formed.
    Type: Grant
    Filed: December 5, 2007
    Date of Patent: July 22, 2014
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, James Lupton Hedrick, Ho-Cheol Kim, Robert Dennis Miller, Willi Volksen
  • Patent number: 8481164
    Abstract: A material and an associated method of formation. A self-assembling block copolymer that includes a first block species and a second block species respectively characterized by a volume fraction of F1 and F2 with respect to the self-assembling block copolymer is provided. At least one crosslinkable polymer that is miscible with the second block species is provided. The self-assembling block copolymer and the at least one crosslinkable polymer are combined to form a mixture. The mixture having a volume fraction, F3, of the crosslinkable polymer, a volume fraction, F1A, of the first block species, and a volume fraction, F2A, of the second block species is formed. A material having a predefined morphology where the sum of F2A and F3 were preselected is formed.
    Type: Grant
    Filed: April 2, 2008
    Date of Patent: July 9, 2013
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, James Lupton Hedrick, Ho-Cheol Kim, Robert Dennis Miller, Willi Volksen
  • Patent number: 8436062
    Abstract: Substantially or roughly spherical micellar structures useful in the formation of nanoporous materials by templating are disclosed. A roughly spherical micellar structure is formed by organization of one or more spatially unsymmetric organic amphiphilic molecules. Each of those molecules comprises a branched moiety and a second moiety. The branched moiety can form part of either the core or the surface of the spherical micellar structure, depending on the polarity of the environment. The roughly spherical micellar structures form in a thermosetting polymer matrix. They are employed in a templating process whereby the amphiphilic molecules are dispersed in the polymer matrix, the matrix is cured, and the porogens are then removed, leaving nanoscale pores.
    Type: Grant
    Filed: May 4, 2011
    Date of Patent: May 7, 2013
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Patent number: 8389589
    Abstract: A nanoporous material exhibiting a lamellar structure is disclosed. The material comprises three or more substantially parallel sheets of an organosilicate material, separated by highly porous spacer regions. The distance between the centers of the sheets lies between 1 nm and 50 nm. The highly porous spacer regions may be substantially free of condensed material. For the manufacture of such materials, a process is disclosed in which matrix non-amphiphilic polymeric material and templating polymeric material are dispersed in a solvent, where the templating polymeric material includes a polymeric amphiphilic material. The solvent with the polymeric materials is distributed onto a substrate. Organization is induced in the templating polymeric material. The solvent is removed, leaving the polymeric materials in place. The matrix polymeric material is cured, forming a lamellar structure.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: March 5, 2013
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Publication number: 20110245433
    Abstract: Substantially or roughly spherical micellar structures useful in the formation of nanoporous materials by templating are disclosed. A roughly spherical micellar structure is formed by organization of one or more spatially unsymmetric organic amphiphilic molecules. Each of those molecules comprises a branched moiety and a second moiety. The branched moiety can form part of either the core or the surface of the spherical micellar structure, depending on the polarity of the environment. The roughly spherical micellar structures form in a thermosetting polymer matrix. They are employed in a templating process whereby the amphiphilic molecules are dispersed in the polymer matrix, the matrix is cured, and the porogens are then removed, leaving nanoscale pores.
    Type: Application
    Filed: May 4, 2011
    Publication date: October 6, 2011
    Inventors: Jennifer Nam Cha, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Patent number: 7960442
    Abstract: Substantially or roughly spherical micellar structures useful in the formation of nanoporous materials by templating are disclosed. A roughly spherical micellar structure is formed by organization of one or more spatially unsymmetric organic amphiphilic molecules. Each of those molecules comprises a branched moiety and a second moiety. The branched moiety can form part of either the core or the surface of the spherical micellar structure, depending on the polarity of the environment. The roughly spherical micellar structures form in a thermosetting polymer matrix. They are employed in a templating process whereby the amphiphilic molecules are dispersed in the polymer matrix, the matrix is cured, and the porogens are then removed, leaving nanoscale pores.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: June 14, 2011
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Publication number: 20100173142
    Abstract: A structure and method for forming single-stranded DNA segments/single-wall carbon nanotube complexes and a method of preparing single-stranded DNA segments. The method for forming single-stranded DNA segments/single-wall carbon nanotube complexes including: attaching single-stranded DNA segments to single-wall carbon nanotubes to form single-stranded DNA segment/single-wall carbon nanotube complexes, each of the single-stranded DNA segments having a same length of greater than 2,000 bases.
    Type: Application
    Filed: October 6, 2009
    Publication date: July 8, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventor: Jennifer Nam Cha
  • Publication number: 20100055307
    Abstract: A nanoporous material exhibiting a lamellar structure is disclosed. The material comprises three or more substantially parallel sheets of an organosilicate material, separated by highly porous spacer regions. The distance between the centers of the sheets lies between 1 nm and 50 nm. The highly porous spacer regions may be substantially free of condensed material. For the manufacture of such materials, a process is disclosed in which matrix non-amphiphilic polymeric material and templating polymeric material are dispersed in a solvent, where the templating polymeric material includes a polymeric amphiphilic material. The solvent with the polymeric materials is distributed onto a substrate. Organization is induced in the templating polymeric material. The solvent is removed, leaving the polymeric materials in place. The matrix polymeric material is cured, forming a lamellar structure.
    Type: Application
    Filed: December 18, 2008
    Publication date: March 4, 2010
    Applicant: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Patent number: 7625702
    Abstract: A structure and method for forming single-stranded DNA segments/single-wall carbon nanotube complexes and a method of preparing single-stranded DNA segments. The method for forming single-stranded DNA segments/single-wall carbon nanotube complexes including: attaching single-stranded DNA segments to single-wall carbon nanotubes to form single-stranded DNA segment/single-wall carbon nanotube complexes, each of the single-stranded DNA segments having a same length of greater than 2,000 bases.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: December 1, 2009
    Assignee: International Business Machines Corporation
    Inventor: Jennifer Nam Cha
  • Patent number: 7482389
    Abstract: A nanoporous material exhibiting a lamellar structure is disclosed. The material comprises three or more substantially parallel sheets of an organosilicate material, separated by highly porous spacer regions. The distance between the centers of the sheets lies between 1 nm and 50 nm. The highly porous spacer regions may be substantially free of condensed material. For the manufacture of such materials, a process is disclosed in which matrix non-amphiphilic polymeric material and templating polymeric material are dispersed in a solvent, where the templating polymeric material includes a polymeric amphiphilic material. The solvent with the polymeric materials is distributed onto a substrate. Organization is induced in the templating polymeric material. The solvent is removed, leaving the polymeric materials in place. The matrix polymeric material is cured, forming a lamellar structure.
    Type: Grant
    Filed: April 20, 2005
    Date of Patent: January 27, 2009
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Publication number: 20080213556
    Abstract: A material and an associated method of formation. A self-assembling block copolymer that includes a first block species and a second block species respectively characterized by a volume fraction of F1 and F2 with respect to the self-assembling block copolymer is provided. At least one crosslinkable polymer that is miscible with the second block species is provided. The self-assembling block copolymer and the at least one crosslinkable polymer are combined to form a mixture. The mixture having a volume fraction, F3, of the crosslinkable polymer, a volume fraction, F1A, of the first block species, and a volume fraction, F2A, of the second block species is formed. A material having a predefined morphology where the sum of F2A and F3 were preselected is formed.
    Type: Application
    Filed: April 2, 2008
    Publication date: September 4, 2008
    Inventors: Jennifer Nam Cha, James Lupton Hedrick, Ho-Cheol Kim, Robert Dennis Miller, Willi Volksen
  • Patent number: 7341788
    Abstract: A material and an associated method of formation. A self-assembling block copolymer that includes a first block species and a second block species respectively characterized by a volume fraction of F1 and F2 with respect to the self-assembling block copolymer is provided. At least one crosslinkable polymer that is miscible with the second block species is provided. The self-assembling block copolymer and the at least one crosslinkable polymer are combined to form a mixture. The mixture having a volume fraction, F3, of the crosslinkable polymer, a volume fraction, F1A, of the first block species, and a volume fraction, F2A, of the second block species is formed. A material having a predefined morphology where the sum of F2A and F3 were preselected is formed.
    Type: Grant
    Filed: March 11, 2005
    Date of Patent: March 11, 2008
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, James Lupton Hedrick, Ho-Cheol Kim, Robert Dennis Miller, Willi Volksen
  • Publication number: 20070154891
    Abstract: A structure and method for forming single-stranded DNA segments/single-wall carbon nanotube complexes and a method of preparing single-stranded DNA segments. The method for forming single-stranded DNA segments/single-wall carbon nanotube complexes including: attaching single-stranded DNA segments to single-wall carbon nanotubes to form single-stranded DNA segment/single-wall carbon nanotube complexes, each of the single-stranded DNA segments having a same length of greater than 2,000 bases.
    Type: Application
    Filed: December 20, 2005
    Publication date: July 5, 2007
    Inventor: Jennifer Nam Cha