Patents by Inventor Chaofeng Zou

Chaofeng Zou 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).

  • Publication number: 20120298930
    Abstract: Stable multicomponent coating systems with superior coatability and stability are disclosed. Such stable coating systems comprising nanostructures, cellulosic polymers, and blocked isocyanates provide coatings and films exhibiting superior surface resistivity and crosslinking.
    Type: Application
    Filed: February 28, 2012
    Publication date: November 29, 2012
    Inventor: Chaofeng Zou
  • Publication number: 20120168690
    Abstract: Methods of recovering compositions comprising nanowires and the product compositions are disclosed and claimed. The product compositions produced by these methods are able to provide equivalent performance to virgin raw materials in transparent conductive film manufacturing processes.
    Type: Application
    Filed: November 30, 2011
    Publication date: July 5, 2012
    Inventors: Richard R. Ollmann, Chaofeng Zou, Gary E. Labelle, Doreen C. Lynch
  • Publication number: 20120152135
    Abstract: Methods and compositions are disclosed and claimed for gravure printing of transparent conductive films comprising metal nanowires. Such films exhibiting low resistivity and superior coating uniformity may be used in electronic or optical articles.
    Type: Application
    Filed: November 11, 2011
    Publication date: June 21, 2012
    Inventors: Chaofeng Zou, Mathew T. Stebbins, Jennifer C. Dawson, Karissa L. Eckert, Gary E. Labelle
  • Publication number: 20120107600
    Abstract: Transparent conductive films comprising silver nanowires dispersed in cellulose ester polymers can be prepared by coating from organic solvent using common solvent coating techniques. These films have good transparency, conductivity, and stability. Coating on a flexible support allows the manufacture of flexible conductive materials.
    Type: Application
    Filed: March 19, 2010
    Publication date: May 3, 2012
    Inventor: Chaofeng Zou
  • Publication number: 20110232945
    Abstract: Transparent conductive films, articles made from them, and methods of making them are disclosed. Some transparent conductive films include flexible glass substrates and conductive layers containing metal nanoparticles. Others include at least one layer with cell walls that contain metal nanorods or conductive nanowires. Still others include a substrate with a coating disposed on it, with the coating including conductive components and photopolymers. Such films are useful in such articles as electronic displays, touch screens, and the like.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 29, 2011
    Inventors: David R. Whitcomb, Chaofeng Zou
  • Patent number: 7622247
    Abstract: Mixtures of an alkyl vinyl ether/maleic anhydride copolymer or an alkylethylene/maleic anhydride copolymer with cellulose acetate provide protective overcoats for thermally developable materials. These protective overcoats exhibit good adhesion to the emulsion layer, are physically hard, and have good optical clarity while maintaining the sensitometric properties of the materials.
    Type: Grant
    Filed: January 14, 2008
    Date of Patent: November 24, 2009
    Assignee: Carestream Health, Inc.
    Inventors: William Donald Ramsden, Chaofeng Zou, Doreen Catherine Lynch, Stacy Marie Ulrich, Sharon Mary Simpson
  • Publication number: 20090181332
    Abstract: Mixtures of an alkyl vinyl ether/maleic anhydride copolymer or an alkylethylene/maleic anhydride copolymer with cellulose acetate provide protective overcoats for thermally developable materials. These protective overcoats exhibit good adhesion to the emulsion layer, are physically hard, and have good optical clarity while maintaining the sensitometric properties of the materials.
    Type: Application
    Filed: January 14, 2008
    Publication date: July 16, 2009
    Inventors: William Donald Ramsden, Chaofeng Zou, Doreen Catherine Lynch, Stacy Marie Ulrich, Sharon Mary Simpson
  • Patent number: 7468241
    Abstract: Use of certain compounds in black-and-white photothermographic materials improves processing latitude particularly under conditions of high humidity.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: December 23, 2008
    Assignee: Carestream Health, Inc.
    Inventors: Doreen C. Lynch, William D. Ramsden, Sharon M. Simpson, Chaofeng Zou
  • Publication number: 20080145801
    Abstract: Use of a combination of a trisphenol reducing agent (developer) and a substituted olefinic co-developer in photothermographic materials reduces their sensitivity to high humidity and improves processing latitude.
    Type: Application
    Filed: December 18, 2006
    Publication date: June 19, 2008
    Inventors: Chaofeng Zou, Fong Vang, Doreen C. Lynch, William D. Ramsden, Sharon M. Simpson, Kumars Sakizadeh
  • Publication number: 20080145800
    Abstract: Use of a combination of a trisphenol reducing agent (developer) and a substituted olefinic co-developer in photothermographic materials provides a number of improvements including a reduction of sensitivity to high humidity and improved processing latitude.
    Type: Application
    Filed: April 16, 2007
    Publication date: June 19, 2008
    Inventors: Chaofeng Zou, Fong Vang, Doreen C. Lynch, William D. Ramsden, Sharon M. Simpson, Kumars Sakizadeh
  • Publication number: 20080057450
    Abstract: Incorporating a combination of phenolic reducing agents provides thermally developable materials with improved silver efficiency and hot-dark print stability without loss in other sensitometric properties. Both photothermographic and thermographic materials are provided, and particularly photothermographic materials having lower silver coverage.
    Type: Application
    Filed: August 21, 2006
    Publication date: March 6, 2008
    Inventors: Stacy M. Ulrich, Doreen C. Lynch, Takuzo Ishida, Chaofeng Zou, Paul G. Skoug, William D. Ramsden
  • Patent number: 7169544
    Abstract: Black-and-white, dry processable thermally developable materials have increased stability after imaging with the incorporation of at least 0.0001 mol/m2 of a thermal solvent having one or more >N—C(?O)— groups. Such thermally developable materials include both thermographic and photothermographic materials.
    Type: Grant
    Filed: April 21, 2005
    Date of Patent: January 30, 2007
    Assignee: Eastman Kodak Company
    Inventors: Kui Chen-Ho, William D. Ramsden, Chaofeng Zou, Doreen C. Lynch, James B. Philip, Jr., Karissa L. Eckert, George J. Burgmaier
  • Patent number: 7157214
    Abstract: High-speed aqueous-based black-and-white photothermographic materials are imageable in any suitable fashion using ultraviolet, visible, infrared, or X-radiation. They can have one or more thermally developable imaging layers on either or both sides of the support and can be imaged with or without a phosphor intensifying screen in an imaging assembly. The photothermographic emulsions and materials have a net Dmin less than 0.25, and require less than 1 erg/cm2 to achieve a density of 1.00 above net Dmin. The imaging layers include hydrophilic binders or water-dispersible latex polymer binders and chemically and spectrally sensitized photosensitive silver halide grains.
    Type: Grant
    Filed: November 2, 2004
    Date of Patent: January 2, 2007
    Assignee: Eastman Kodak Company
    Inventors: Chaofeng Zou, Doreen C. Lynch
  • Publication number: 20060240366
    Abstract: Black-and-white, dry processable thermally developable materials have increased stability after imaging with the incorporation of at least 0.0001 mol/m2 of a thermal solvent having one or more >N—C(?O)— groups. Such thermally developable materials include both thermographic and photothermographic materials.
    Type: Application
    Filed: April 21, 2005
    Publication date: October 26, 2006
    Inventors: Kui Chen-Ho, William Ramsden, Chaofeng Zou, Doreen Lynch, James Philip, Karissa Eckert, George Burgmaier
  • Patent number: 7097963
    Abstract: Black-and-white, aqueous-based, silver halide-containing photothermographic materials have increased stability after imaging with the incorporation of at least 0.0002 mol/m2 of a halogen-substituted tetraazaindene compound.
    Type: Grant
    Filed: April 18, 2005
    Date of Patent: August 29, 2006
    Assignee: Eastman Kodak Company
    Inventors: Chaofeng Zou, Kumars Sakizadeh, George J. Burgmaier, Roger L. Klaus
  • Publication number: 20060057510
    Abstract: Thermally developable materials such as thermographic and photo-thermographic materials include a co-precipitate comprising first and second organic silver salts, the first organic silver salt comprising a silver salt of a nitrogen-containing heterocyclic compound containing an imino group, and the second organic silver salt comprising a silver salt of a mercaptotriazole. The first organic silver salt can be used in the imaging process as a source of reducible silver ions, and the second organic silver salt can be a source of a toning agent. The co-precipitate can be prepared using double-jet precipitation techniques to provide an aqueous dispersion that can be used in imaging formulations.
    Type: Application
    Filed: September 7, 2004
    Publication date: March 16, 2006
    Inventors: Dirk Hasberg, Doreen Lynch, Kui Chen-Ho, Chaofeng Zou
  • Patent number: 7008748
    Abstract: Thermally developable materials such as thermographic and photothermographic materials include a co-precipitate comprising first and second organic silver salts, the first organic silver salt comprising a silver salt of a nitrogen-containing heterocyclic compound containing an imino group, and the second organic silver salt comprising a silver salt of a mercaptotriazole. The first organic silver salt can be used in the imaging process as a source of reducible silver ions, and the second organic silver salt can be a source of a toning agent. The co-precipitate can be prepared using double-jet precipitation techniques to provide an aqueous dispersion that can be used in imaging formulations.
    Type: Grant
    Filed: September 7, 2004
    Date of Patent: March 7, 2006
    Assignee: Eastman Kodak Company
    Inventors: Dirk J. Hasberg, Doreen C. Lynch, Kui Chen-Ho, Chaofeng Zou
  • Patent number: 6977139
    Abstract: Thermally developable materials such as thermographic and photothermographic materials include a novel non-photosensitive source of reducible silver ions that are predominantly provided as rod-shaped particles of silver salt of a nitrogen-containing heterocyclic compound containing an imino group. The rod-shaped particles have an average aspect ratio of at least 3:1 and a width index for particle diameter of 1.25 or less, and provide improved imaging properties. These particles can be prepared using double jet precipitation procedures in which vAg is kept constant at a value of equal to or greater than ?50 mV.
    Type: Grant
    Filed: April 16, 2004
    Date of Patent: December 20, 2005
    Assignee: Eastman Kodak Company
    Inventors: Dirk J. Hasberg, Chaofeng Zou
  • Patent number: 6964842
    Abstract: Aqueous-based photothermographic materials comprise a hydrophilic binder, preformed silver halides, an organic silver salt, a reducing agent composition, and one or more benzothiazolium, benzoselenazolium, or benzotellurazolium salts as antifoggants. These photothermographic materials can be used in combination with phosphor intensifying screens for radiographic imaging.
    Type: Grant
    Filed: August 14, 2003
    Date of Patent: November 15, 2005
    Assignee: Eastman Kodak Company
    Inventors: Chaofeng Zou, Roger L. Klaus
  • Publication number: 20050233268
    Abstract: Thermally developable materials such as thermographic and photo-thermographic materials include a novel non-photosensitive source of reducible silver ions that are predominantly provided as rod-shaped particles of silver salt of a nitrogen-containing heterocyclic compound containing an imino group. The rod-shaped particles have an average aspect ratio of at least 3:1 and a width index for particle diameter of 1.25 or less, and provide improved imaging properties. These particles can be prepared using double jet precipitation procedures in which vAg is kept constant at a value of equal to or greater than ?50 mV.
    Type: Application
    Filed: April 16, 2004
    Publication date: October 20, 2005
    Inventors: Dirk Hasberg, Chaofeng Zou