Patents by Inventor Yunzhang Wang

Yunzhang Wang 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: 20040137814
    Abstract: The present invention relates generally to substrates that exhibit useful, auto adaptable surface energy properties that depend on the environment of the substrate. Such surface energy properties provide relatively high advancing and receding contact angles for liquids when in contact with the target substrate surface. The substrates exhibit low surface energy quantities of at most about 20 millijoules per square meter (mJ/m2) at a temperature of about 25 degrees C. and a surface energy greater than about 20 mJ/m2 at, or with exposure to, a temperature of about 40 degrees C. More specifically, encompassed within the present invention are textile substrates having this highly desirable unique surface energy modification property and which exhibit wash durable oil and water repellency and stain release features. Novel compositions and formulations that impart such surface energy modifications to substrates are also encompassed within this invention, as well as methods for producing such treated substrates.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 15, 2004
    Inventors: Wiliam C. Kimbrell, Xinggao Fang, Yunzhang Wang, Dominick J. Valenti, Daniel T. McBride
  • Publication number: 20040137154
    Abstract: The present invention relates generally to substrates that exhibit useful, auto adaptable surface energy properties that depend on the environment of the substrate. Such surface energy properties provide relatively high advancing and receding contact angles for liquids when in contact with the target substrate surface. The substrates exhibit low surface energy quantities of at most about 20 millijoules per square meter (mJ/m2) at a temperature of about 25 degrees C. and a surface energy greater than about 20 mJ/m2 at, or with exposure to, a temperature of about 40 degrees C. More specifically, encompassed within the present invention are textile substrates having this highly desirable unique surface energy modification property and which exhibit wash durable oil and water repellency and stain release features. Novel compositions and formulations that impart such surface energy modifications to substrates are also encompassed within this invention, as well as methods for producing such treated substrates.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 15, 2004
    Inventors: Wiliam C. Kimbrell, Xinggao Fang, Yunzhang Wang, Daniel T. McBride
  • Publication number: 20040137818
    Abstract: The present invention relates generally to substrates that exhibit useful, auto adaptable surface energy properties that depend on the environment of the substrate. Such surface energy properties provide relatively high advancing and receding contact angles for liquids when in contact with the target substrate surface. The substrates exhibit low surface energy quantities of at most about 20 millijoules per square meter (mJ/m2) at a temperature of about 25 degrees C. and a surface energy greater than about 20 mJ/m2 at, or with exposure to, a temperature of about 40 degrees C. More specifically, encompassed within the present invention are textile substrates having this highly desirable unique surface energy modification property and which exhibit wash durable oil and water repellency and stain release features. Novel compositions and formulations that impart such surface energy modifications to substrates are also encompassed within this invention, as well as methods for producing such treated substrates.
    Type: Application
    Filed: January 10, 2003
    Publication date: July 15, 2004
    Inventors: William C. Kimbrell, Xinggao Fang, Yunzhang Wang, Dominick J. Valenti, Daniel T. McBride
  • Publication number: 20040043251
    Abstract: In general terms, the present invention includes a light emitting polymeric material the light emitting polymeric material capable of producing electroluminescence upon being provided with a flow of electrons, the light emitting polymeric material comprising a plurality of polymeric chains comprising polymeric chains each having substituent moieties of sufficient number and size and extending from the polymeric chain and about a substantial portion of the circumference about the polymer chain so as to maintain the polymeric chains in a sufficiently deaggregated state (referred to herein as a “strapped” polymer), so as to substantially prevent the redshifting of the electroluminescence and the lowering of light emission efficiency of the electroluminescence.
    Type: Application
    Filed: August 27, 2003
    Publication date: March 4, 2004
    Inventors: Arthur J. Epstein, Yunzhang Wang, Darren D. Gebler, Timothy M. Swager
  • Patent number: 6623870
    Abstract: In general terms, the present invention includes a light emitting polymeric material the light emitting polymeric material capable of producing electroluminescence upon being provided with a flow of electrons, the light emitting polymeric material comprising a plurality of polymeric chains comprising polymeric chains each having substituent moieties of sufficient number and size and extending from the polymeric chain and about a substantial portion of the circumference about the polymer chain so as to maintain the polymeric chains in a sufficiently deaggregated state (referred to herein as a “strapped” polymer), so as to substantially prevent the redshifting of the electroluminescence and the lowering of light emission efficiency of the electroluminescence.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: September 23, 2003
    Assignee: The Ohio State University
    Inventors: Arthur J. Epstein, Yunzhang Wang, Darren D. Gebler, Timothy M. Swager
  • Publication number: 20030034637
    Abstract: A two or more chambered airbag provides much improved safety and/or performance. A modified single chamber airbag can be used as the primary chamber of the two-chamber airbag. A piece of fabric of appropriate size is sewn to the inside or outside surface of the front panel of the primary chamber to create the secondary chamber. One or more apertures are opened between the primary and secondary chambers. In order for the secondary chamber to inflate properly, the tethers of the primary chamber are shortened to 50% to 80% of their original length. The size or location of the tether sewing to the inner surface of the front panel of the primary chamber is also adjusted to create a desired shape of the secondary chamber when deployed.
    Type: Application
    Filed: July 6, 2001
    Publication date: February 20, 2003
    Inventors: Yunzhang Wang, Ramesh Keshavaraj
  • Publication number: 20030022409
    Abstract: The present invention includes methods for fabricating polymer light emitting devices by lamination. The invention also includes methods for fabricating electroluminescent polymer devices and electroluminescent polymer systems, and machines or instruments using those aspects of the invention.
    Type: Application
    Filed: July 16, 2002
    Publication date: January 30, 2003
    Applicant: The Ohio State University
    Inventors: Arthur J. Epstein, Yunzhang Wang, Runguang Sun
  • Patent number: 6235414
    Abstract: Color-variable light-emitting devices which are capable of generating two independent colors, even at room temperature. The devices comprise a layer of at least one active electroluminescent polymer. This electroluminescent polymer may be accompanied by one or two redox-mediating polymer layers. The redox polymer layer(s) modify the charge injection and transport properties such that the device may be operated under both forward and reverse bias.
    Type: Grant
    Filed: March 11, 1998
    Date of Patent: May 22, 2001
    Assignee: The Ohio State University Research Foundation
    Inventors: Arthur J. Epstein, Yunzhang Wang
  • Patent number: 6004681
    Abstract: In general terms, the present invention includes a light emitting polymeric material, the polymeric material comprising: (a) an electron transporting polymer; the electron transporting polymer in contact with (b) an electron blocking polymer, the electron blocking polymer incorporating a network electrode polymer. Such devices may be bilayer or multilayer devices, in accordance with arrangements known in the art. Likewise, the source of electrical current may be from any appropriate source having the electrical characteristics sufficient to and appropriate for the desired device make-up and application.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: December 21, 1999
    Assignee: The Ohio State University Research Foundation
    Inventors: Arthur J. Epstein, Yunzhang Wang
  • Patent number: 5955834
    Abstract: In general terms the present invention includes light emitting polymeric materials and light emitting devices made therefrom. The present invention also includes light emitting devices incorporating light emitting polymeric materials of the present invention.
    Type: Grant
    Filed: July 29, 1997
    Date of Patent: September 21, 1999
    Assignee: The Ohio State University
    Inventors: Arthur J. Epstein, Yunzhang Wang
  • Patent number: 5858561
    Abstract: Light emitting bipolar devices consist of an electroluminescent organic light emitting material sandwiched between two layers of insulating material each of which is in contact with an electrode. The devices operate with AC voltage at voltages of less than twenty four volts and in some instances at less than five volts. Under AC driving, the device produces modulated light output that can be frequency or amplitude modulated. Under DC driving, the device operates in both forward and reverse bias.
    Type: Grant
    Filed: March 2, 1995
    Date of Patent: January 12, 1999
    Assignee: The Ohio State University
    Inventors: Arthur J. Epstein, Yunzhang Wang, Darren Douglas Gebler
  • Patent number: 5663573
    Abstract: Light-emitting bipolar devices consist of a light-emitter formed from an electroluminescent organic light-emitting material in contact with an insulating material. The light emitter is in contact with two electrodes that are maintained in spaced apart relation with each other. The light emitter can be formed as an integral mixture of light emitting materials and insulating materials or as separate layers of light-emitting and insulating materials. The devices operate with AC voltage of less than twenty-four volts and in some instances at less than five volts. Under AC driving, the devices produce modulated light output that can be frequency or amplitude modulated. Under DC driving, the devices operate in both forward and reverse bias.
    Type: Grant
    Filed: March 17, 1995
    Date of Patent: September 2, 1997
    Assignee: The Ohio State University
    Inventors: Arthur J. Epstein, Yunzhang Wang, Darren Douglas Gebler