Patents by Inventor Houjin Huang

Houjin Huang 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: 10799593
    Abstract: The present invention provides various functionalized nanodiamond particles. In particular, the present invention provides soluble complexes of nanodiamond particles and therapeutic agents, for example insoluble therapeutics, anthracycline and/or tetracycline compounds, nucleic acids, proteins, etc. The present invention also provides materials and devices for the controlled release of therapeutics, and methods for uses thereof.
    Type: Grant
    Filed: July 13, 2015
    Date of Patent: October 13, 2020
    Assignee: Northwestern University
    Inventors: Dean Ho, Mark Chen, Erik Pierstorff, Erik Robinson, Robert Lam, Rafael Shimkunas, Xueqing Zhang, Houjin Huang
  • Publication number: 20160058887
    Abstract: The present invention provides various functionalized nanodiamond particles. In particular, the present invention provides soluble complexes of nanodiamond particles and therapeutic agents, for example insoluble therapeutics, anthracycline and/or tetracycline compounds, nucleic acids, proteins, etc. The present invention also provides materials and devices for the controlled release of therapeutics, and methods for uses thereof.
    Type: Application
    Filed: July 13, 2015
    Publication date: March 3, 2016
    Inventors: Dean Ho, Mark Chen, Erik Pierstorff, Erik Robinson, Robert Lam, Rafael Shimkunas, Xueqing Zhang, Houjin Huang
  • Publication number: 20130004560
    Abstract: Disclosed herein are nanofilm coatings for implantable medical devices comprising a diblock or triblock copolymer (PEO-PMMA or PMOXA-PDMS-PMOXA, respectively). Such nanofilms, may be used, for example, as amphiphilic supports for therapeutic agents. These materials are conducive towards the formation of active substrates for a suite of biological and medical applications.
    Type: Application
    Filed: September 11, 2012
    Publication date: January 3, 2013
    Applicants: The Regents of the University of California, Northwestern University
    Inventors: Dean Ho, Mark Chen, Erik Pierstorff, Houjin Huang, Edward K. Chow, Genhong Cheng
  • Patent number: 8263104
    Abstract: Disclosed herein are nanofilm coatings for implantable medical devices comprising a diblock or triblock copolymer (PEO-PMMA or PMOXA-PDMS-PMOXA, respectively). Such nanofilms, may be used, for example, as amphiphilic supports for therapeutic agents. These materials are conducive towards the formation of active substrates for a suite of biological and medical applications.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: September 11, 2012
    Assignees: Northwestern University, The Regents of the University of California
    Inventors: Dean Ho, Mark Chen, Erik Pierstorff, Houjin Huang, Edward K Chow, Genhong Cheng
  • Patent number: 7892063
    Abstract: A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate (10) made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (11). The heat distribution (11) is formed, for example, through diffracting an energy beam (12) by a diffraction grating (13). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (11), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.
    Type: Grant
    Filed: January 14, 2009
    Date of Patent: February 22, 2011
    Assignee: Sony Corporation
    Inventors: Dharam Pal Gosain, Hisashi Kajiura, Ryuichiro Maruyama, Masashi Shiraishi, Houjin Huang, Koji Kadono, Shigeaki Wachi, Masafumi Ata
  • Patent number: 7828620
    Abstract: A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate (10) made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (11). The heat distribution (11) is formed, for example, through diffracting an energy beam (12) by a diffraction grating (13). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (11), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.
    Type: Grant
    Filed: January 8, 2004
    Date of Patent: November 9, 2010
    Assignee: Sony Corporation
    Inventors: Dharam Pal Gosain, Hisashi Kajiura, Ryuichiro Maruyama, Masashi Shiraishi, Houjin Huang, Koji Kadono, Shigeaki Wachi, Masafumi Ata
  • Publication number: 20100040672
    Abstract: The present invention provides materials and devices for the controlled release of therapeutics, and methods for uses thereof.
    Type: Application
    Filed: June 9, 2009
    Publication date: February 18, 2010
    Applicant: Northwestern University
    Inventors: Dean Ho, Robert Lam, Mark Chen, Houjin Huang, Erik Pierstorff, Erik Robinson
  • Patent number: 7659139
    Abstract: A method for destruction of metallic carbon nanotubes is provided. The method includes irradiating a mixture of semiconducting carbon nanotubes and metallic carbon nanotubes with energy beams (such as laser light), thereby selectively destroying metallic carbon nanotubes or semiconducting carbon nanotubes. The energy beams have energy components for resonance absorption by the metallic carbon nanotubes or semiconducting carbon nanotubes.
    Type: Grant
    Filed: July 25, 2006
    Date of Patent: February 9, 2010
    Assignee: Sony Corporation
    Inventor: Houjin Huang
  • Publication number: 20100003809
    Abstract: A method for destruction of metallic carbon nanotubes is provided. The method includes irradiating a mixture of semiconducting carbon nanotubes and metallic carbon nanotubes with energy beams (such as laser light), thereby selectively destroying metallic carbon nanotubes or semiconducting carbon nanotubes. The energy beams have energy components for resonance absorption by the metallic carbon nanotubes or semiconducting carbon nanotubes.
    Type: Application
    Filed: July 25, 2006
    Publication date: January 7, 2010
    Applicant: SONY CORPORATION
    Inventor: Houjin Huang
  • Patent number: 7601322
    Abstract: Carbon nanotube, method for positioning the same, field effect transistor made using the carbon nanotube, method for making the field-effect transistor, and a semiconductor device are provided. The carbon nanotube includes a bare carbon nanotube and a functional group introduced to at least one end of the bare carbon nanotube.
    Type: Grant
    Filed: July 20, 2005
    Date of Patent: October 13, 2009
    Assignee: Sony Corporation
    Inventor: Houjin Huang
  • Publication number: 20090136411
    Abstract: Carbon nanotube, method for positioning the same, field effect transistor made using the carbon nanotube, method for making the field-effect transistor, and a semiconductor device are provided. The carbon nanotube includes a bare carbon nanotube and a functional group introduced to at least one end of the bare carbon nanotube.
    Type: Application
    Filed: November 13, 2008
    Publication date: May 28, 2009
    Applicant: Sony Corporation
    Inventor: Houjin Huang
  • Publication number: 20090121605
    Abstract: A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate (10) made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (11). The heat distribution (11) is formed, for example, through diffracting an energy beam (12) by a diffraction grating (13). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (11), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.
    Type: Application
    Filed: January 14, 2009
    Publication date: May 14, 2009
    Applicant: Sony Corporation
    Inventors: Dharam Pal Gosain, Hisashi Kajiura, Ryuichiro Maruyama, Masashi Shiraishi, Houjin Huang, Koji Kodono, Shigeaki Wachi, Masafumi Ata
  • Publication number: 20090004241
    Abstract: Disclosed herein are nanofilm coatings for implantable medical devices comprising a diblock or triblock copolymer (PEO-PMMA or PMOXA-PDMS-PMOXA, respectively). Such nanofilms, may be used, for example, as amphiphilic supports for therapeutic agents. These materials are conducive towards the formation of active substrates for a suite of biological and medical applications.
    Type: Application
    Filed: June 9, 2008
    Publication date: January 1, 2009
    Applicant: Northwestern University
    Inventors: Dean Ho, Mark Chen, Erik Pierstorff, Houjin Huang, Edward K. Chow, Genhong Cheng
  • Publication number: 20080124502
    Abstract: A manufacturing method of carbon nanotubes capable of mass-producing DWCNT with high throughput and a low defect incidence ratio is provided. In a vacuum chamber (1), a first electrode (2) having a hollow (2a) and a rod-like second electrode (3) are included. Inert gas such as helium gas, nitrogen gas, and argon gas is introduced into the vacuum chamber (1), the atmosphere not containing hydrogen gas and oxygen gas is created, and in this state, arc discharge is generated between the first electrode (2) and the second electrode (3). The heat generated by arc discharge is moderately stored on the surface of the inner side surrounded by the first electrode (2), and temperatures on the surface of the first electrode (2) are maintained at the temperatures suitable for producing the DWCNT (8). Thereby, the thready DWCNT (8) can be continuously produced without pause starting with a catalyst (6).
    Type: Application
    Filed: July 15, 2004
    Publication date: May 29, 2008
    Inventors: Houjin Huang, Hisashi Kajiura, Masafumi Ata
  • Publication number: 20060286023
    Abstract: Carbon nanotube, method for positioning the same, field effect transistor made using the carbon nanotube, method for making the field-effect transistor, and a semiconductor device are provided. The carbon nanotube includes a bare carbon nanotube and a functional group introduced to at least one end of the bare carbon nanotube.
    Type: Application
    Filed: July 20, 2005
    Publication date: December 21, 2006
    Inventor: Houjin Huang
  • Publication number: 20060108906
    Abstract: A method of manufacturing a tubular carbon molecule capable of regularly aligning a carbon nanotube with a finer spacing is provided. A catalyst is arranged on a material substrate (10) made of a semiconductor such as silicon (Si) and including iron (Fe) as a catalyst through the use of melting according to a modulated heat distribution (11). The heat distribution (11) is formed, for example, through diffracting an energy beam (12) by a diffraction grating (13). As a method of arranging the catalyst, for example, iron may be deposited in a planar shape or a projection shape in a position corresponding to the heat distribution (11), or the deposited iron may be used as a master to be transferred to another substrate. A carbon nanotube is grown through the use of the arranged catalyst. The grown carbon nanotube can be used as a recording apparatus, a field electron emission device, an FED or the like.
    Type: Application
    Filed: January 8, 2004
    Publication date: May 25, 2006
    Inventors: Dharam Gosain, Hisashi Kajiura, Ryuichiro Maruyama, Masashi Shiraishi, Houjin Huang, Koji Kadono, Shigeaki Wachi, Masafumi Ata
  • Publication number: 20050069480
    Abstract: Reflux systems and methods for purifying carbon nanostructures using same are provided. The reflux system includes a solvent flask, an extraction tube connected to the solvent flask by a siphon tube and a vapor tube each extending between the extraction tube and the solvent flask, and an energy application disposed around the bottom portion of the extraction tube. The reflux systems can be used in a one-step method of purifying carbon nanostructures that includes placing a soot sample that contains the carbon nanostructures and amorphous carbon in a filter and disposing the filter in the extraction tube.
    Type: Application
    Filed: December 7, 2001
    Publication date: March 31, 2005
    Inventors: Houjin Huang, Masashi Shiraishi, Atsuo Yamada, Hisashi Kajiura, Masafumi Ata
  • Patent number: 6794598
    Abstract: An arc electrode structure, for producing carbon nanostructures, which includes a first electrode and two or more second electrodes disposed within a chamber is provided. The electrodes are connected to a voltage potential to produce an arc-plasma region. The first electrode has a sloped surface with a plurality of holes therein for holding catalyst. The first electrode's sloped surface, and the positioning of the plurality of second electrodes allows control of the direction and region of arc-plasma. Further, the first electrode has a central bore which may be either a blind bore, or a through bore. The blind bore collects unwanted deposits that slide off of the sloped surface of the first electrode. The throughbore either allows soot and carbon nanostructures to be removed from the chamber, or allows organic vapor to be introduced into the chamber.
    Type: Grant
    Filed: July 25, 2003
    Date of Patent: September 21, 2004
    Assignee: Sony Corporation
    Inventors: Houjin Huang, Hisashi Kajiura, Mitsuaki Miyakoshi, Atsuo Yamada, Masashi Shiraishi
  • Publication number: 20040050686
    Abstract: An arc electrode structure, for producing carbon nanostructures, which includes a first electrode and two or more second electrodes disposed within a chamber. The electrodes are connected to a voltage potential to produce an arc-plasma region. The first electrode has a sloped surface with a plurality of holes therein for holding catalyst. The first electrode's sloped surface, and the positioning of the plurality of second electrodes allows control of the direction and region of arc-plasma. Further, the first electrode has a central bore which may be either a blind bore, or a through bore. The blind bore collects unwanted deposits that slide off of the sloped surface of the first electrode. The throughbore either allows soot and carbon nanostructures to be removed from the chamber, or allows organic vapor to be introduced into the chamber.
    Type: Application
    Filed: July 25, 2003
    Publication date: March 18, 2004
    Inventors: Houjin Huang, Hisashi Kajiura, Mitsuaki Miyakoshi, Atsuo Yamada, Masashi Shiraishi
  • Publication number: 20040005269
    Abstract: A method for producing carbon nanostructures using a chemical vapor deposition process. A carbon source and a mixture catalyst are used wherein the mixture catalyst includes at least one element, from a group A including Fe, Co and Ni, and at least one supporting element, from a group B including lanthanides. The lanthanide elements can be used to lower the melting point of the catalyst by forming alloys so that the carbon nanostructures can be grown at lower temperatures. Further, the lanthanide elements also enhance catalyst activity of Ni, Co or Fe by changing the catalyst surface electronic properties. Also, the lanthanide elements also scavenger excess carbon so that carbon nanostructures can be grown without contamination.
    Type: Application
    Filed: May 14, 2003
    Publication date: January 8, 2004
    Inventors: Houjin Huang, Hisashi Kajiura, Masafumi Ata