Patents by Inventor Zhihao Yang

Zhihao Yang 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: 11149361
    Abstract: Preparation methods of a high modulus carbon fiber (HMCF) and a precursor (mesophase pitch (MP)) thereof are provided. The preparation method of MP includes: separating components with a molecular weight distribution (MWD) of 400 to 1,000 from a heavy oil raw material through size-exclusion chromatography (SEC); subjecting the components to ion-exchange chromatography (IEC) to obtain modified feedstock oil, where, the components are passed through macroporous cation-exchange and anion-exchange resins in sequence to remove acidic and alkaline components; and subjecting the modified feedstock oil to thermal polycondensation and carbonization to obtain high-quality MP with prominent spinnability. With high mesophase content, low softening point, low viscosity, and prominent meltability and spinnability, the obtained MP is a high-quality raw material for preparing HMCFs. The obtained MP can be subjected to melt spinning, pre-oxidation, carbonization, and graphitization to obtain an MP-based HMCF.
    Type: Grant
    Filed: May 10, 2021
    Date of Patent: October 19, 2021
    Assignee: CHINA UNIVERSITY OF PETROLEUM
    Inventors: Dong Liu, Xin Gong, Bin Lou, Jun Li, Zhihao Li, Nan Shi, Fushan Wen, Hui Du, Zhaojun Chen, Changlong Yin, Xiujie Yang, Luning Chai, Zhichen Zhang, Enqiang Yu, Yu'e Fu, Huizhi Yuan, Jianguo Zhang, Zhiqing Ma, Chong Jiao, Yonggang Cao
  • Publication number: 20210290828
    Abstract: The present invention generally relates to the use of small particles, such as micro particles or nanoparticles, to produce a therapeutic scar such as “trans-mural” scarring or other desired “deep tissue” scarring. In one preferred embodiment, these particles can be delivered to a target location by an implant. More specifically, these particles can be incorporated into the structure of implants or into the coatings on implants. In another preferred embodiment, these small particles can be delivered directly with a catheter by electrophoresis or hydraulic pressure.
    Type: Application
    Filed: May 8, 2007
    Publication date: September 23, 2021
    Applicant: SYNTACH AG
    Inventors: Zhihao Yang, Richard Cornelius, Paige Hastings, Bodo Quint, Gerd Seibold, Ib Erling Joergensen, Stevan Nielsen
  • Patent number: 7850933
    Abstract: Methods for forming nanoparticles under commercially attractive conditions. The nanoparticles can have very small size and high degree of monodispersity. Low temperature sintering is possible, and highly conductive films can be made. Semiconducting and electroluminescent films can be also made. One embodiment provides a method comprising: (a) providing a first mixture comprising at least one nanoparticle precursor and at least one first solvent for the nanoparticle precursor, wherein the nanoparticle precursor comprises a salt comprising a cation comprising a metal; (b) providing a second mixture comprising at least one reactive moiety reactive for the nanoparticle precursor and at least one second solvent for the reactive moiety, wherein the second solvent phase separates when it is mixed with the first solvent; and (c) combining said first and second mixtures in the presence of a surface stabilizing agent, wherein upon combination the first and second mixtures phase-separate and nanoparticles are formed.
    Type: Grant
    Filed: April 12, 2007
    Date of Patent: December 14, 2010
    Assignee: NanoMas Technologies, Inc.
    Inventors: Zhihao Yang, Hao Wang, Zhiyong Xu
  • Patent number: 7648741
    Abstract: A method of forming a pattern of electrical conductors on a receiving substrate (110) comprises forming metal nanoparticles of a conductive material. A donor substrate (45) is formed. A layer of release material (75) is deposited on a first side of the donor substrate. The metal nanoparticles are deposited on the release material. The metal nanoparticulate layer are placed in contact with the receiving substrate. A pattern is written on a sandwich formed by the donor substrate and the receiving substrate, causing metal nanoparticles from the nanoparticulate layer (90) to anneal and transfer to the receiving substrate to form the pattern of electrical conductors on the receiving substrate.
    Type: Grant
    Filed: May 17, 2005
    Date of Patent: January 19, 2010
    Assignee: Eastman Kodak Company
    Inventors: Kelvin Nguyen, Zhihao Yang
  • Publication number: 20100009153
    Abstract: A composition comprises at least one silver nanoparticulate material, at least one conductive microparticulate material, and less than about 3% wt of an organic or polymeric resin. The composition provides a low curing temperature and upon cure good film properties. Also provided herein is a method of using an ink or paste, comprising: (i) providing the ink or paste comprising at least one silver nanoparticulate material, at least one conductive microparticulate material, and less than about 3% wt of an organic or polymeric resin; and (ii) curing the ink or paste at a temperature at lower than about 200° C. to decompose the organic resin.
    Type: Application
    Filed: June 11, 2009
    Publication date: January 14, 2010
    Inventors: Zhihao Yang, Zhiyoung Xu, Yu Du
  • Publication number: 20090159121
    Abstract: A method of fabricating a device, comprising a ink or paste on a silicon based semiconductor material, wherein the ink or paste comprises a mixture of inorganic conductive and additive nanoparticles and wherein the semiconductor material is silicon. An example is a mixture of silver and palladium nanoparticles.
    Type: Application
    Filed: October 8, 2008
    Publication date: June 25, 2009
    Inventors: Zhihao Yang, Zhiyong Xu, Zeqi Tang
  • Publication number: 20080124268
    Abstract: Methods for forming nanoparticles under commercially attractive conditions. The nanoparticles can have very small size and high degree of monodispersity. Low temperature sintering is possible, and highly conductive films can be made. Semiconducting and electroluminescent films can be also made. One embodiment provides a method comprising: (a) providing a first mixture comprising at least one nanoparticle precursor and at least one first solvent for the nanoparticle precursor, wherein the nanoparticle precursor comprises a salt comprising a cation comprising a metal; (b) providing a second mixture comprising at least one reactive moiety reactive for the nanoparticle precursor and at least one second solvent for the reactive moiety, wherein the second solvent phase separates when it is mixed with the first solvent; and (c) combining said first and second mixtures in the presence of a surface stabilizing agent, wherein upon combination the first and second mixtures phase-separate and nanoparticles are formed.
    Type: Application
    Filed: April 12, 2007
    Publication date: May 29, 2008
    Inventors: Zhihao Yang, Hao Wang, Zhiyong Xu
  • Publication number: 20070077349
    Abstract: A method of making an OLED display having a plurality of OLED devices includes providing a plurality of OLED devices on a substrate, such OLED devices sharing a common light-transmissive electrode; forming a patterned conductive layer structure over the common light-transmissive electrode to define wells in alignment with emissive areas of one or more OLED devices; and providing optical material into one or more wells
    Type: Application
    Filed: September 30, 2005
    Publication date: April 5, 2007
    Inventors: David Newman, Timothy Tredwell, Ronald Cok, Zhihao Yang
  • Publication number: 20060263725
    Abstract: A method of forming a pattern of electrical conductors on a receiving substrate (110) comprises forming metal nanoparticles of a conductive material. A donor substrate (45) is formed. A layer of release material (75) is deposited on a first side of the donor substrate. The metal nanoparticles are deposited on the release material. The metal nanoparticulate layer are placed in contact with the receiving substrate. A pattern is written on a sandwich formed by the donor substrate and the receiving substrate, causing metal nanoparticles from the nanoparticulate layer (90) to anneal and transfer to the receiving substrate to form the pattern of electrical conductors on the receiving substrate.
    Type: Application
    Filed: May 17, 2005
    Publication date: November 23, 2006
    Inventors: Kelvin Nguyen, Zhihao Yang
  • Publication number: 20060214154
    Abstract: A thin film transistor comprises a layer of organic semiconductor material and spaced apart first and second contact means or electrodes in contact with said material. A multilayer dielectric comprises a first dielectric layer having a thickness of 200 nm to 500 nm, in contact with the gate electrode and a second dielectric layer in contact with the organic semiconductor material, and wherein the first dielectric layer comprise a continuous first polymeric material having a relatively higher dielectric constant less than 10 and the second dielectric layer comprises a continuous second non-fluorinated polymeric material having a relatively lower dielectric constant greater than 2.3. Further disclosed is a process for fabricating such a thin film transistor device, preferably by sublimation or solution-phase deposition onto a substrate, wherein the substrate temperature is no more than 100° C.
    Type: Application
    Filed: March 24, 2005
    Publication date: September 28, 2006
    Inventors: Zhihao Yang, Diane Freeman, Amy Jasek, Shelby Nelson
  • Publication number: 20060003262
    Abstract: A method of forming a pattern of electrical conductors on a substrate (18) consists of forming metal nanoparticles on a conductive material. A light absorbing dye is mixed with the metal nanoparticles. The mixture is then coated on the substrate. The pattern is formed on the coated substrate with laser light (14). Unannealed material is removed from the substrate.
    Type: Application
    Filed: June 30, 2004
    Publication date: January 5, 2006
    Inventors: Zhihao Yang, David Kay, Lee Tutt
  • Patent number: 6896873
    Abstract: The present invention provides a coating that emits magnetic resonance signals and a method for coating medical devices therewith. The coating includes a paramagnetic metal ion-containing polymer complex that facilitates diagnostic and therapeutic techniques by readily visualizing medical devices coated with the complex.
    Type: Grant
    Filed: March 12, 2002
    Date of Patent: May 24, 2005
    Assignee: Wisconsin Alumni Research Foundation
    Inventors: Richard Frayne, Charles M. Strother, Orhan Unal, Zhihao Yang, Abukar Wehelie, Hyuk Yu
  • Patent number: 6843121
    Abstract: A method of measuring absolute static pressure in a microfluidic device transporting a working fluid that is immiscible in a first selected gas environment, includes providing a first fluid conducting channel having an atmosphere provided by the first selected gas environment in a sealed environment and in communication with the microfluidic device at a first point of communication; providing a first sensing mechanism that is electrically interrogated, disposed adjacent to the first fluid conducting channel; and transporting the working fluid under pressure conducted by the microfluidic device into the first fluid conducting channel such that the volume transported into such first fluid conducting channel varies depending upon the absolute static pressure of the working fluid.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: January 18, 2005
    Assignee: Eastman Kodak Company
    Inventors: Michael J. DeBar, Zhihao Yang
  • Patent number: 6815078
    Abstract: A gelatin-based substrate for fabricating protein arrays, the substrate comprising: gelatin having at least one surface; a polymer scaffold affixed to the gelatin surface; wherein the polymer in the scaffold is rich in reactive units capable of immobilizing proteins.
    Type: Grant
    Filed: March 6, 2002
    Date of Patent: November 9, 2004
    Assignee: Eastman Kodak Company
    Inventors: Tiecheng A. Qiao, Jeffrey W. Leon, Thomas L. Penner, Zhihao Yang
  • Patent number: 6808745
    Abstract: A method for coating a micro-electromechanical systems device with a silane coupling agent by a) mixing the silane coupling agent with a low volatile matrix material in a coating source material container; b) placing the micro-electromechanical systems device in a vacuum deposition chamber which in connection with the coating source material container; c) pumping the vacuum deposition chamber to a predetermined pressure; and maintaining the pressure of the vacuum deposition chamber for a period of time in order to chemically vapor deposit the silane coupling agent on the surface of the micro-electromechanical systems device.
    Type: Grant
    Filed: August 22, 2002
    Date of Patent: October 26, 2004
    Assignee: Eastman Kodak Company
    Inventor: Zhihao Yang
  • Patent number: 6797393
    Abstract: A gelatin-based substrate for fabricating protein arrays, the substrate containing: gelatin and a trifunctional compound A—L—B; wherein A is a functional group capable of interacting with the gelatin; L is a linking group capable of interacting with A and with B; and B is a functional group capable of interacting with a protein capture agent. A may be the same or different from B.
    Type: Grant
    Filed: November 30, 2001
    Date of Patent: September 28, 2004
    Assignee: Eastman Kodak Company
    Inventors: Tiecheng A. Qiao, Krishnan Chari, Thomas L. Penner, Zhihao Yang
  • Patent number: 6789887
    Abstract: This invention relates to an inkjet printing method comprising providing a liquid inkjet ink which contains a thermally responsive material and applying the liquid ink jet ink onto an inkjet recording element in an imagewise fashion, wherein the inkjet recording element has been heated to a temperature higher than the temperature of the liquid inkjet ink.
    Type: Grant
    Filed: February 20, 2002
    Date of Patent: September 14, 2004
    Assignee: Eastman Kodak Company
    Inventors: Zhihao Yang, Ravi Sharma, Simon Yandila
  • Publication number: 20040037956
    Abstract: A method for coating a micro-electromechanical systems device with a silane coupling agent by a) mixing the silane coupling agent with a low volatile matrix material in a coating source material container; b) placing the micro-electromechanical systems device in a vacuum deposition chamber which in connection with the coating source material container; c) pumping the vacuum deposition chamber to a predetermined pressure; and maintaining the pressure of the vacuum deposition chamber for a period of time in order to chemically vapor deposit the silane coupling agent on the surface of the micro-electromechanical systems device
    Type: Application
    Filed: August 22, 2002
    Publication date: February 26, 2004
    Applicant: Eastman Kodak Company
    Inventor: Zhihao Yang
  • Patent number: 6638693
    Abstract: Disclosed is media for receiving jetted ink comprising a support bearing a predetermined array of three dimensional cells composed of hydrophobic walls and having a hydrophilic base, the cross-section of the cells parallel to the support being of a size sufficiently small so as to increase the range of color density gradations attainable.
    Type: Grant
    Filed: October 29, 2001
    Date of Patent: October 28, 2003
    Assignee: Eastman Kodak Company
    Inventors: Constantine N. Anagnostopoulos, Emmanuel K. Dokyi, Ravi Sharma, Mridula Nair, Zhihao Yang
  • Patent number: 6622746
    Abstract: A microfluidic system is provided for controlling delivery and mixing of thermally-responsive fluids. A plurality of microfluidic inlet channels open into a mixing chamber. A valve is associated with each of the inlet channels for controlling the flow of the thermally-responsive fluids through the inlet channels. The valves include a heater in thermal contact with at least a portion of the associated inlet channel, whereby the viscosity of the thermally-responsive fluids can selectively be controlled by heat to cause a change in flow of the thermally-responsive fluids through the inlet channels. A plurality of microfluidic outlet channels may be provided for transporting mixed fluids from the mixing chamber. A valve associated with each of the outlet channels controls the flow of the mixed thermally-responsive fluids through the outlet channels.
    Type: Grant
    Filed: December 12, 2001
    Date of Patent: September 23, 2003
    Assignee: Eastman Kodak Company
    Inventors: Zhihao Yang, Gilbert A. Hawkins