Patents by Inventor Timothy J. Fuller

Timothy J. Fuller 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: 6261730
    Abstract: A flexible electrostatographic imaging member including at least one photographic imaging layer, a support layer, and an anticurl back layer having an exposed surface including a cross linked phenoxy resin at the exposed surface, the phenoxy resin being formed from a solution including cross linkable solvent soluble phenoxy resin containing hydroxyl groups attached to carbon atoms, an acid having a pKa less than about 3, a cross linking agent selected from the group including a formaldehyde generating cross linking agent, an alkoxylated cross linking agent, a methylolamine cross linking agent and mixtures thereof, and a liquid selected from the group including solvents, diluent and mixtures thereof.
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: July 17, 2001
    Assignee: Xerox Corporation
    Inventors: John F. Yanus, Timothy J. Fuller, Damodar M. Pai, William W. Limburg, John A. Bergfjord, Sr., Dale S. Renfer
  • Patent number: 6207334
    Abstract: An electrophotographic imaging member including a substrate, a charge generating layer, a charge transport layer, and an overcoat layer including a polyvinyl butyral film forming binder, a cross linked polyamide film forming binder, and a hole transport material. A process for forming an overcoated imaging member is also disclosed.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: March 27, 2001
    Assignee: Xerox Corporation
    Inventors: Kenny-tuan T. Dinh, Timothy J. Fuller, Markus R. Silvestri, Paul J. Defeo, Damodar M. Pai, John F. Yanus, Robert W. Nolley
  • Patent number: 6203143
    Abstract: Disclosed is a composition which comprises (a) a polymer containing at least some monomer repeat units with photosensitivity-imparting substituents which enable crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer being of the formula wherein x is an integer of 0 or 1, A is one of several specified groups, such as B is one of several specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units, wherein said photosensitivity-imparting substituents are hydroxyalkyl groups; (b) at least one member selected from the group consisting of photoinitiators and sensitizers; and (c) an optional solvent. Also disclosed are processes for preparing the above polymers and methods of preparing thermal ink jet printheads containing the above polymers.
    Type: Grant
    Filed: September 23, 1998
    Date of Patent: March 20, 2001
    Assignee: Xerox Corporation
    Inventors: Ram S. Narang, Timothy J. Fuller
  • Patent number: 6200716
    Abstract: A photoreceptor including: (a) a substrate; (b) a charge blocking layer comprising a polymer polymerized fiom at least one monomer including vinylbenzyl alcohol monomer; and (c) at least one imaging layer.
    Type: Grant
    Filed: November 15, 1999
    Date of Patent: March 13, 2001
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Huoy-Jen Yuh, John S. Chambers, Harold F. Hammond, Damodar M. Pai, John F. Yanus, Markus R. Silvestri, Helen R. Cherniack
  • Patent number: 6200715
    Abstract: An electrophotographic imaging member including a support member, a charge generating layer and a charge transport layer, the charge transport layer including a cross linked matrix derived from a cross linkable aromatic polymer with substituent groups containing unsaturated carbon to carbon double bond, the substituent groups being free of any urethane linkage and attached to phenylene.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: March 13, 2001
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, John F. Yanus, Damodar M. Pai, Markus R. Silvestri, Ram S. Narang, William W. Limburg, Dale S. Renfer
  • Patent number: 6197462
    Abstract: A flexible electrostatographic imaging member including at least one photographic imaging layer, a support layer, and an anticurl back layer having an exposed surface including a cross linked polyamide at the exposed surface, the polyamide being, formed from a solution selected from the group including a first solution including crosslinkable alcohol soluble polyamide containing methoxy methyl groups attached to amide nitrogen atoms, an acid having a pKa less than about 3, a cross linking agent selected from the group including a formaldehyde generating cross linking agent, an alkoxylated cross linking agent, a methylolamine cross linking agent and mixtures thereof, and a liquid selected from the group including alcohol solvents, diluent and mixtures thereof, a second solution including crosslinkable alcohol soluble polyamide free of methoxy methyl groups attached to amide nitrogen atoms, an acid having a pKa less than about 3, a cross linking agent selected from the group including a an alkoxyla
    Type: Grant
    Filed: November 29, 1999
    Date of Patent: March 6, 2001
    Assignee: Xerox Corporation
    Inventors: John F. Yanus, Timothy J. Fuller, Damodar M. Pai, William W. Limburg, John A. Bergfjord, Sr., Dale S. Renfer
  • Patent number: 6197464
    Abstract: An electrophotographic imaging member including a substrate, a charge generating layer, a charge transport layer, and an overcoat layer formed from a solution including a first cross linkable polyamide film forming binder free of methyl methoxy groups, an optional second cross linkable polyamide film forming binder containing methyl methoxy groups, a cross linking catalyst and a hole transport material. A process for forming an overcoated imaging member is also disclosed.
    Type: Grant
    Filed: May 12, 2000
    Date of Patent: March 6, 2001
    Assignee: Xerox Corporation
    Inventors: Kenny-tuan T. Dinh, Timothy J. Fuller, Markus R. Silvestri, Paul J. Defeo, Damodar M. Pai, John F. Yanus, Robert W. Nolley, William W. Limburg, Dale S. Renfer
  • Patent number: 6194111
    Abstract: A crosslinkable charge transport layer material for a photoconductor includes at least one poly(arylene ether alcohol), at least one polyisocyanate crosslinking agent and at least one charge transport material dispersed in a solvent. The crosslinkable charge transport layer material is crosslinked following application of the coating solution to the photoconductor. The photoconductor including such crosslinked charge transport layer exhibits excellent wear resistance so as to have long life, thereby reducing the cost of electrophotographic printing machines employing such photoconductors therein.
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: February 27, 2001
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Markus R. Silvestri, John F. Yanus, Damodar M. Pai, Paul J. De Feo, Dale S. Renfer, Anthony T. Ward, William W. Limburg, Harold F. Hammond, Robert W. Nolley
  • Patent number: 6184263
    Abstract: A composition which comprises a mixture of (A) a first component comprising a polymer, at least some of the monomer repeat units of which have at least one photosensitivity-imparting group thereon, said polymer having a first degree of photosensitivity-imparting group substitution and being of the formulae specified in the claims, and (B) a second component which comprises either (1) a polymer having a second degree of photosensitivity-imparting group substitution lower than the first degree of photosensitivity-imparting group substitution, wherein said second degree of photosensitivity-imparting group substitution may be zero, wherein the mixture of the first component and the second component has a third degree of photosensitivity-imparting group substitution which is lower than the first degree of photosensitivity-imparting group substitution and higher than the second degree of photosensitivity-imparting group substitution, or (2) a reactive diluent having at least one photosensitivity-imparting group per
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: February 6, 2001
    Assignee: Xerox Corporation
    Inventors: Ram S. Narang, Timothy J. Fuller
  • Patent number: 6177238
    Abstract: Disclosed is an ink jet printhead containing a polymer of the formula wherein P is a substituent which enables crosslinking of the polymer, a, b, c, and d are each integers of 0, 1, 2, 3, or 4, provided that at least one of a, b, c, and d is equal to or greater than 1 in at least some of the monomer repeat units of the polymer, A is or a mixture of wherein R is a hydrogen atom, an alkyl group, an aryl group, or mixtures thereof, B is one of specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: January 23, 2001
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, John F. Yanus, Damodar M. Pai, Markus R. Silvestri, Ram S. Narang, William W. Limburg, Dale S. Renfer
  • Patent number: 6174636
    Abstract: Disclosed is an imaging member which comprises a conductive substrate, a photogenerating material, and a binder comprising a polymer of the formula wherein A is or a mixture of wherein R is a hydrogen atom, an alkyl group, an aryl group, or mixtures thereof, B is one of specified groups, such as or mixtures thereof, and n is an integer representing the number of repeating monomer units.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: January 16, 2001
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, John F. Yanus, Damodar M. Pai, Markus R. Silvestri, Ram S. Narang, William W. Limburg, Dale S. Renfer
  • Patent number: 6151042
    Abstract: Disclosed is a composition comprising a polymer with a weight average molecular weight of from about 1,000 to about 100,000, said polymer containing at least some monomer repeat units with a first, photosensitivity-imparting substituent which enables crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer also containing a second, thermal sensitivity-imparting substituent which enables further crosslinking or chain extension of the polymer upon exposure to temperatures of about 140.degree. C.
    Type: Grant
    Filed: December 23, 1998
    Date of Patent: November 21, 2000
    Assignee: Xerox Corporation
    Inventors: Thomas W. Smith, Timothy J. Fuller, Ram S. Narang, David J. Luca
  • Patent number: 6139999
    Abstract: An electrophotographic imaging member includingat least one photographic imaging layer anda partially electrically conductive overcoat layer includingfinely divided charge injection enabling particles dispersed ina charge transporting continuous matrix including a cross linked polyamide, charge transport molecules and oxidized charge transport molecules, the continuous matrix being formed from a solution selected from the group includinga first solution includingcrosslinkable alcohol soluble polyamide containing methoxy methyl groups attached to amide nitrogen atoms,an acid having a pK.sub.
    Type: Grant
    Filed: October 28, 1999
    Date of Patent: October 31, 2000
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Damodar M. Pai, John F. Yanus, Paul J. DeFeo, Anthony T. Ward, Dale S. Renfer, Harold F. Hammond, Merlin E. Scharfe, Markus R. Silvestri, William W. Limburg
  • Patent number: 6132913
    Abstract: A crosslinkable coating composition including an alcohol soluble acrylated polyamide containing alkoxymethyl or alkoxyalkylmethyl groups attached to amide nitrogen atoms, a crosslinking catalyst and a mixture of a hydroxy functionalized aromatic diamine with a hydroxy functionalized triarylamine. A coating is formed from this composition.
    Type: Grant
    Filed: March 9, 1999
    Date of Patent: October 17, 2000
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, John F. Yanus, Damodar M. Pai, William W. Limburg, Markus R. Silvestri, Dale S. Renfer, Anthony T. Ward, Paul J. DeFeo, Harold F. Hammond, Robert W. Nolley
  • Patent number: 6132912
    Abstract: A photoconductive imaging member comprised of a supporting substrate, a layer (1) thereover, a photogenerating layer and a charge transport layer, and wherein said layer (1) is generated from a mixture of a polyhydroxyalkylacrylate, and an amino alkyltrialkoxysilane.
    Type: Grant
    Filed: May 27, 1999
    Date of Patent: October 17, 2000
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, Damodar M. Pai, John F. Yanus, Markus R. Silvestri, Huoy-Jen Yuh, John S. Chambers, Harold F. Hammond, Susan M. Vandusen, Dennis J. Prosser, Kathleen M. Carmichael, Robert C. U. Yu, Neil S. Patterson
  • Patent number: 6127077
    Abstract: A photoreceptor having a substrate, including: (a) a charge generating layer; (b) a first charge transport layer having a first charge carrier mobility value; and (c) a second charge transport layer having a second charge carrier mobility value, wherein the first charge transport layer is closer to the charge generating layer than the second charge transport layer and the second charge transport layer is contiguous to the first charge transport layer, wherein the second charge carrier mobility value is higher than the first charge carrier mobility value.
    Type: Grant
    Filed: September 14, 1998
    Date of Patent: October 3, 2000
    Assignee: Xerox Corporation
    Inventors: Damodar M. Pai, Chu-Heng Liu, John F. Yanus, Timothy J. Fuller, Markus R. Silvestri
  • Patent number: 6124372
    Abstract: Disclosed is a composition comprising a polymer with a weight average molecular weight of from about 1,000 to about 100,000, said polymer containing at least some monomer repeat units with a first, photosensitivity-imparting substituent which enables crosslinking or chain extension of the polymer upon exposure to actinic radiation, said polymer also containing a second, thermal sensitivity-imparting substituent which enables further crosslinking or chain extension of the polymer upon exposure to temperatures of about 140.degree. C.
    Type: Grant
    Filed: August 29, 1996
    Date of Patent: September 26, 2000
    Assignee: Xerox Corporation
    Inventors: Thomas W. Smith, Timothy J. Fuller, Ram S. Narang, David J. Luca
  • Patent number: 6117967
    Abstract: Disclosed is a polymer of the formula ##STR1## wherein A is ##STR2## or a mixture of ##STR3## wherein R is a hydrogen atom, an alkyl group, an aryl group, or mixtures thereof, B is one of specified groups, such as ##STR4## or mixtures thereof, and n is an integer representing the number of repeating monomer units.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: September 12, 2000
    Assignee: Xerox Corporation
    Inventors: Timothy J. Fuller, John F. Yanus, Damodar M. Pai, Markus R. Silvestri, Ram S. Narang, William W. Limburg, Dale S. Renfer
  • Patent number: 6107439
    Abstract: A conductive composition including a mixture of a reaction product ofa hole transporting hydroxy functionalized aryl amine,a hydroxy functionalized arylamine that is different from the hole transporting hydroxy functionalized aryl amine,a cross linkable polyamide, andand an acid capable of simultaneously cross linking the polyamide and oxidizing a portion of the hydroxy functionalized arylamine,the mixture of a reaction product includinga hole transporting hydroxy functionalized aryl amine andan oxidized hydroxy functionalized aryl amine in aa crosslinked polyamide matrix.Other embodiments including processes for applying the aforementioned composition and processes for using devices containing the compositions in high speed laser printing and related printing systems are also disclosed.
    Type: Grant
    Filed: December 22, 1998
    Date of Patent: August 22, 2000
    Assignee: Xerox Corporation
    Inventors: John F. Yanus, Damodar M. Pai, Timothy J. Fuller, Paul J. DeFeo, Markus R. Silvestri, Dale S. Renfer, William W. Limburg
  • Patent number: 6103436
    Abstract: An electrophotographic imaging member including a supporting substrate coated with at least photoconductive layer, a charge transport layer and an overcoating layer, the overcoating layer includinga hydroxy functionalized aromatic diamine anda hydroxy functionalized triarylamine dissolved or molecularly dispersed ina crosslinked polyamide matrix, the crosslinked polyamide prior to crosslinking being selected from the group consisting of materials represented by the following Formulae I and II: ##STR1## wherein: n is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100,000,R is an alkylene unit containing from 1 to 10 carbon atoms,between 1 and 99 percent of the R.sub.2 sites are --H, andthe remainder of the R.sub.2 sites are --CH.sub.2 --O--CH.sub.3, and ##STR2## wherein: m is a positive integer sufficient to achieve a weight average molecular weight between about 5000 and about 100000,R.sub.
    Type: Grant
    Filed: October 29, 1998
    Date of Patent: August 15, 2000
    Assignee: Xerox Corporation
    Inventors: John F. Yanus, Damodar M. Pai, Timothy J. Fuller, Paul J. DeFeo, Anthony T. Ward, Dale S. Renfer, William W. Limburg, Markus R. Silvestri, Harold F. Hammond, Robert W. Nolley