Patents by Inventor Weishi Wu

Weishi Wu 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: 8460802
    Abstract: There is provided a charge transport compound having the formula T-LG-T, where T is a charge transport moiety having the formula —Ar1-An-Ar2 and LG is a linking group. In the compound, An is a divalent anthracene moiety; Ar1 is a single bond or an aromatic group which can be naphthyl, binaphthyl, naphthylphenylene, naphthylbiphenylene, or naphthylbinaphthylene; Ar2 is an aromatic group which can be naphthyl, binaphthyl, naphthylphenylene, naphthylbiphenylene, or naphthylbinaphthylene; and LG can be biphenylene, binaphthylene, or Formula I In Formula I, Q1 and Q2 are the same or different can be alkyl and aryl, or Q1 and Q2 taken together can be alkylene; and Ar3 and Ar4 are the same or different and can be phenylene or naphthylene.
    Type: Grant
    Filed: July 12, 2012
    Date of Patent: June 11, 2013
    Assignee: E I du Pont de Nemours and Company
    Inventor: Weishi Wu
  • Publication number: 20120277498
    Abstract: There is provided a charge transport compound having the formula T-LG-T, where T is a charge transport moiety having the formula —Ar1-An-Ar2 and LG is a linking group. In the compound, An is a divalent anthracene moiety; Ar1 is a single bond or an aromatic group which can be naphthyl, binaphthyl, naphthylphenylene, naphthylbiphenylene, or naphthylbinaphthylene; Ar2 is an aromatic group which can be naphthyl, binaphthyl, naphthylphenylene, naphthylbiphenylene, or naphthylbinaphthylene; and LG can be biphenylene, binaphthylene, or Formula I In Formula I, Q1 and Q2 are the same or different can be alkyl and aryl, or Q1 and Q2 taken together can be alkylene; and Ar3 and Ar4 are the same or different and can be phenylene or naphthylene.
    Type: Application
    Filed: July 12, 2012
    Publication date: November 1, 2012
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventor: Weishi WU
  • Publication number: 20120187382
    Abstract: An organic light-emitting diode is provided having an anode, a cathode, and an organic active layer therebetween. The organic active layer includes a deuterated compound and the device has a calculated half-life at 1000 nits of at least 5000 hours.
    Type: Application
    Filed: December 22, 2009
    Publication date: July 26, 2012
    Applicant: E.I. DUPONT DE NEMOURS AND COMPANY
    Inventors: Vsevolod Rostovtsev, Weiying Gao, Gary A. Johansson, Yulong Shen, Adam Fennimore, Kalindi Dogra, Hong Meng, Weishi Wu, Michael Henry Howard, JR., Ralph Birchard Lloyd, Nora Sabina Radu, Norman Herron, Daniel David Lecloux, Eric Maurice Smith, Che-Hsiung Hsu, Kyung-Ho Park, Jeffrey A. Merlo, Christina M. Older, Jerald Feldman, Ying Wang
  • Publication number: 20120187383
    Abstract: There is provided an a host material and a dopant material, wherein the host material is a compound having one of Formulae I-VI: In the formulae, R1 is the same or different at each occurrence and represents an optional substituent which may be present at any or all of the available sites and may be D, alkyl, aryl, alkoxy, aryloxy, oxyalkyl, alkenyl, silyl, or siloxane; Ar1, Ar2, and Ar3 are the same or different at each occurrence and are aryl groups; a is an integer from 2-6; and b is an integer from 1-3.
    Type: Application
    Filed: August 1, 2011
    Publication date: July 26, 2012
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: WEIYING GAO, Weishi Wu, Kalindi Dogra, Vsevolod Rostovtsev, Kerwin D. Dobbs
  • Publication number: 20120037898
    Abstract: This invention relates to chrysene compounds that are useful in electroluminescent applications. It also relates to electronic devices in which the active layer includes such a chrysene compound.
    Type: Application
    Filed: May 19, 2010
    Publication date: February 16, 2012
    Applicant: E.I. du Pont de Nemours and Company
    Inventors: Weishi Wu, Norman Herron, Vsevolod Rostovtsev, Jeffrey A. Merlo, Weiying Gao
  • Publication number: 20110253985
    Abstract: This invention relates to triarylamine compounds that are useful in electronic applications. It also relates to electronic devices in which the active layer includes such a compound.
    Type: Application
    Filed: October 19, 2010
    Publication date: October 20, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Ying Wang, Weishi Wu, Kerwin D. Dobbs
  • Publication number: 20110253986
    Abstract: This invention relates to triarylamine compounds that are useful in electronic applications. It also relates to electronic devices in which the active layer includes such a compound.
    Type: Application
    Filed: October 19, 2010
    Publication date: October 20, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Ying Wang, Weishi Wu, Kerwin D. Dobbs
  • Patent number: 8034882
    Abstract: A conjugated or partially conjugated polymer including a structural unit of Formula (I); where T is an aryl or heteroaryl group that may be substituted or unsubstituted, or a C1-C24 alkyl group; R1 is alkyl, alkoxy, aryl group, cyano, or F; and a and b are independently selected from 1, 2 or 3. In addition, a composition of Formula (IV); wherein X is a halogen or a boronate group.
    Type: Grant
    Filed: February 23, 2006
    Date of Patent: October 11, 2011
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Wanglin Yu, Weishi Wu, James J. O'Brien
  • Publication number: 20110215715
    Abstract: This invention relates to chrysene compounds that are useful in electroluminescent applications and are capable of blue or green emission. It also relates to electronic devices in which the active layer includes such a chrysene compound.
    Type: Application
    Filed: November 19, 2009
    Publication date: September 8, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Weishi Wu, Norman Herron, Vsevolod Rostovtsev, Jeffrey A. Merlo, Weiying Gao
  • Publication number: 20110147718
    Abstract: There is provided an electroactive composition including: a deuterated first host material and an electroluminescent dopant material. The first host is a compound having Formula I: The compound of Formula I is deuterated. In Formula I: Ar1 to Ar4 are the same or different and are aryl; Q is a multivalent aryl group or where T is (CR?)a, SiR2, S, SO2, PR, PO, PO2, BR, or R; R is the same or different at each occurrence and is an alkyl group or an ary group; R? is the same or different at each occurrence and is selected H, D, or alkyl; a is an integer from 1-6; and m is an integer from 0-6.
    Type: Application
    Filed: December 21, 2009
    Publication date: June 23, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Michael Henry Howard, JR., Nora Sabina Radu, Weishi Wu, Weiying Gao, Norman Herron, Eric Maurice Smith, Christina M. Older, Adam Fennimore, Ying Wang, Daniel David Lecloux, Kalindi Dogra, Vsevolod Rostovtsev, Jerald Feldman, Siddhartha Shenoy
  • Publication number: 20110121269
    Abstract: This invention relates to deuterated aryl-anthracene compounds that are useful in electronic applications. It also relates to electronic devices in which the active layer includes such a deuterated compound.
    Type: Application
    Filed: May 19, 2010
    Publication date: May 26, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: DANIEL DAVID LECLOUX, ADAM FENNIMORE, WEIYING GAO, NORA SABINA RADU, WEISHI WU, VSEVOLOD ROSTOVTSEV, MICHAEL HENRY HOWARD, JR., HONG MENG, YULONG SHEN
  • Publication number: 20110101312
    Abstract: This invention relates to deuterated indolocarbazole compounds that are useful in electronic applications. It also relates to electronic devices in which the active layer includes such a deuterated compound.
    Type: Application
    Filed: December 21, 2009
    Publication date: May 5, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Daniel David LeCloux, Kalindi Dogra, Weishi Wu, Adam Fenninmore, Eric Maurice Smith
  • Publication number: 20110057173
    Abstract: This invention relates to deuterated aryl-anthracene compounds that are useful in electronic applications. It also relates to electronic devices in which the active layer includes such a deuterated compound.
    Type: Application
    Filed: March 1, 2010
    Publication date: March 10, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Daniel David LeCloux, Adam Fennimore, Weiying Gao, Nora Sabina Radu, Weishi Wu, Vsevolod Rostovtsev, Michael Henry Howard, JR.
  • Publication number: 20110037057
    Abstract: This invention relates to deuterated aryl-anthracene compounds that are useful in electronic applications. It also relates to electronic devices in which the active layer includes such a deuterated compound.
    Type: Application
    Filed: December 21, 2009
    Publication date: February 17, 2011
    Applicant: E.I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Daniel David LeCloux, Adam Fennimore, Weiying Gao, Nora Sabina Radu, Weishi Wu, Vsevolod Rostovtsev, Michael Henry Howard, JR., Hong Meng, Yulong Shen, Jeffrey A. Merlo, Eric Maurice Smith
  • Publication number: 20110037056
    Abstract: There is provided a photoactive composition including: (a) a first host material having a HOMO energy level shallower than or equal to ?5.6 eV and having a Tg greater than 95° C.; (b) a second host material having a LUMO deeper than ?2.0 eV; and (c) an electroluminescent dopant material. The weight ratio of first host material to second host material is in the range of 99:1 to 1.5:1.
    Type: Application
    Filed: December 11, 2009
    Publication date: February 17, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Charles J. Dubois, Weiying Gao, Norman Herron, Hong Meng, Jeffrey A. Merlo, Vsevolod Rostovtsev, Weishi Wu
  • Publication number: 20100187983
    Abstract: This invention relates to deuterated compounds that are useful in electroluminescent applications. It also relates to electronic devices in which the active layer includes such a deuterated compound.
    Type: Application
    Filed: December 21, 2009
    Publication date: July 29, 2010
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventors: Norman Herron, Vsevolod Rostovtsev, Jeffrey A. Merlo, Michael Henry Howard, JR., Adam Fennimore, Weiying Gao, Kalindi Dogra, Nora Sabina Radu, Weishi Wu, Eric Maurice Smith, Daniel David Lecloux
  • Patent number: 7651746
    Abstract: A halogenated bisdiarylaminopolycyclic aromatic compound, polymers made therefrom, and polymeric light emitting diode devices using the polymers are described. The halogenated compound is represented by formula (I), wherein Ar and Ar? are each independently substituted or unsubstituted aryl groups and Z is a polycyclic arylene group, wherein at least one of the Ar? groups is a haloaryl group. Devices using polymers prepared from the halogenated compound exhibit improved performance and longer lifetime, presumably as a result of the presence of the geometrically constrained diarylaminopolycyclic aromatic groups in the polymer backbone.
    Type: Grant
    Filed: November 3, 2004
    Date of Patent: January 26, 2010
    Assignee: Sumitomo Chemical Company, Limited
    Inventors: Michelle L. Hudack, Wanglin Yu, Michael Inbasekaran, Weishi Wu, Dean M. Welsh, James J. O'Brien
  • Patent number: 7517472
    Abstract: The present invention relates to a composition comprising a blend of a luminescent polymer and a low molecular weight (<5000 amu) viscosity modifier, which has an emission maximum in the range of 350-480 nm, contains no exocyclic double bonds, and modifies the viscosity of the polymer without substantially altering emissive properties of the neat polymer. Modification of viscosity without concomitant modification of emissive properties is desirable where the polymer is already tuned to emit at the desired wavelength.
    Type: Grant
    Filed: May 19, 2006
    Date of Patent: April 14, 2009
    Assignee: Dow Global Technologies Inc.
    Inventors: Shari L. Kram, William B. Marshall, James J. O'Brien, Todd A. Pickering, Weishi Wu
  • Publication number: 20090066224
    Abstract: A conjugated or partially conjugated polymer comprising a structural unit of Formula I: I Wherein Ar1 is an aromatic group which contains one or more heteroatoms, or an aromatic group which comprises one or more fused aromatic or non-aromatic rings, said aromatic group may be substituted or unsubstituted; and R1 is alkyl, alkoxy, and aryl group, cyano, or F.
    Type: Application
    Filed: March 2, 2006
    Publication date: March 12, 2009
    Inventors: Wanglin Yu, Weishi Wu, Michelle L. Hudack, James J. O'Brien
  • Publication number: 20080297040
    Abstract: There is provided a charge transport compound having the formula T-LG-T, where T is a charge transport moiety having the formula —Ar1-An-Ar2 and LG is a linking group. In the compound, An is a divalent anthracene moiety; Ar1 is a single bond or an aromatic group which can be naphthyl, binaphthyl, naphthylphenylene, naphthylbiphenylene, or naphthylbinaphthylene; Ar2 is an aromatic group which can be naphthyl, binaphthyl, naphthylphenylene, naphthylbiphenylene, or naphthylbinaphthylene; and LG can be biphenylene, binaphthylene, or Formula I In Formula I, Q1 and Q2 are the same or different can be alkyl and aryl, or Q1 and Q2 taken together can be alkylene; and Ar3 and Ar4 are the same or different and can be phenylene or naphthylene.
    Type: Application
    Filed: May 30, 2008
    Publication date: December 4, 2008
    Inventor: WEISHI WU