Carbazole Containing Or Derivative Patents (Class 430/58.6)
  • Publication number: 20030207188
    Abstract: Improved organophotoreceptors have:
    Type: Application
    Filed: March 6, 2003
    Publication date: November 6, 2003
    Inventors: Nusrallah Jubran, Zbigniew Tokarski, Kam W. Law
  • Publication number: 20030203296
    Abstract: This invention relates to a novel organophotoreceptor that includes: (a) a charge transport composition comprising molecules having the formula 1
    Type: Application
    Filed: March 10, 2003
    Publication date: October 30, 2003
    Inventors: Kam W. Law, Nusrallah Jubran, Zbigniew Tokarski
  • Publication number: 20030113643
    Abstract: An organophotoreceptor that includes:
    Type: Application
    Filed: September 27, 2002
    Publication date: June 19, 2003
    Applicant: SAMSUNG Electronics Co. Ltd.
    Inventors: Kam W. Law, Nusrallah Jubran, Zbigniew Tokarski
  • Publication number: 20030113644
    Abstract: This invention relates to an organophotoreceptor that includes:
    Type: Application
    Filed: October 31, 2002
    Publication date: June 19, 2003
    Applicant: SAMSUNG Electronics Co., Ltd.
    Inventors: Kam W. Law, Nusrallah Jubran, Zbigniew Tokarski
  • Publication number: 20030113132
    Abstract: A novel charge transport compound, a novel process using that novel compound and an organophotoreceptor includes:
    Type: Application
    Filed: August 9, 2002
    Publication date: June 19, 2003
    Applicant: Samsung Information Systems America
    Inventors: Kam W. Law, Nusrallah Jubran, Zbigniew Tokarski, Alan R. Katritzky, Ritu Jain, Rexiat Maimait
  • Patent number: 6495300
    Abstract: A photoconductive imaging member containing an optional supporting substrate, a photogenerating layer, a charge transport layer, and an overcoating layer comprised of a crosslinked composite polysiloxane-silica generated from the reaction of a silyl-functionalized hydroxyalkyl polymer of Formula (I) with an organosilane of Formula (II) in the presence of silica particles and water wherein A, B, D, and F represent the segments of the polymer backbone; E is a hole transporting moiety; X is selected from the group consisting of halide, cyano, alkoxy, acyloxy, and aryloxy; a, b, c, and d each represent mole fractions of the repeating monomer units such that the sum of a+b+c+d is equal to about 1; R is alkyl, substituted alkyl, aryl, or substituted aryl, and R1, R2, and R3 are independently selected from the group consisting of alkyl, aryl, alkoxy, aryloxy, acyloxy, halide, cyano, and amino, subject to the provision that two of R1, R2, and R3 are each independently selected from th
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: December 17, 2002
    Assignee: Xerox Corporation
    Inventors: Yu Qi, Beng S. Ong, Cheng-Kuo Hsiao, Ping Liu, Huoy-Jen Yuh, John S. Chambers, Helen R. Cherniack
  • Publication number: 20020057050
    Abstract: The present invention relates to a novel class of thermostable hole-injection and hole-transport compounds having tunable glass transition temperatures and ionization potentials for use in organic light emitting diode (“OLED”) devices. In particular, the compounds of the present invention comprise a trityl aniline core structure with various substituents attached to the nitrogen group, the structures of which allow for the adjustment of the glass transition temperatures and ionization potentials of the compounds. The present invention also relates to microdisplay devices comprising the compounds of the present invention in the hole-injection/hole-transport layers.
    Type: Application
    Filed: June 28, 2001
    Publication date: May 16, 2002
    Inventor: Xiaobo Shi
  • Patent number: 6340548
    Abstract: Organic photoreceptors that include a charge transport compound, a charge generating compound, and an electroconductive support in which the charge transport compound is a novel aryl hydrazone-functional carbazole compound.
    Type: Grant
    Filed: March 16, 2000
    Date of Patent: January 22, 2002
    Assignee: Imation Corp.
    Inventors: Nusrallah Jubran, Zbigniew Tokarski, Terrance P. Smith
  • Patent number: 6214503
    Abstract: The invention features organic photoreceptors that include a charge transport compound having the formula: where X is an N-alkyl-substituted carbazole, an N-aryl-substituted carbazole, or a p-(N,N-disubstituted)arylamine; Ar is a group having the formula: R1 is a hydrogen, halogen, or alkyl group; R is a hydrogen, halogen, OH, CN, OR2, or OCOR3 group; R2 is an alkyl, aryl, or alkaryl group; R3 is a hydrogen, alkyl, aryl, or haloalkyl group; n is 0 or 1; A is a group having the formula: Z is O or S; Q is O, S, or CH2; and m is 0 or 1.
    Type: Grant
    Filed: December 21, 1999
    Date of Patent: April 10, 2001
    Assignee: Imation Corp.
    Inventors: Valentas Gaidelis, Janina Gavutiene, Vytautas Getautis, Juozas Vidas Grazulevicius, Vygintas Jankauskas, Rimtautas Kavaliunas, Ruta Lazauskaite, Osvaldas Paliulis, Mitchell A. Rossman, Donatas Jonas Sidaravicius, Terrance P. Smith, Albina Stanishauskaite