Patents by Inventor Satish R. Parikh

Satish R. Parikh 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: 7485398
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component wherein the at least one charge transport component is comprised of aryl amine molecules of the formula wherein X and Y are each independently alkyl, alkoxy, aryl, a halogen, and wherein the photogenerating layer contains a titanyl phthalocyanine prepared by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with monohalobenzene.
    Type: Grant
    Filed: June 22, 2006
    Date of Patent: February 3, 2009
    Assignee: Xerox Corporation
    Inventors: Jin Wu, John F. Yanus, Satish R. Parikh, Anthony M. Horgan, Kent J Evans, Geoffrey M T. Foley, Satchidanand Mishra, Markus R. Silvestri, J. Robinson Cowdery-Corvan, David M. Skinner, Edward F. Grabowski, Kathleen M. Carmichael, Yonn K. Rasmussen, Donald J. Goodman, Liang-Bih Lin
  • Publication number: 20070298342
    Abstract: A photoconductor containing an optional supporting substrate, a photogenerating layer, and at least one charge transport layer comprised of at least one charge transport component wherein the at least one charge transport component is comprised of aryl amine molecules of the formula wherein X and Y are each independently alkyl, alkoxy, aryl, a halogen, and wherein the photogenerating layer contains a titanyl phthalocyanine prepared by dissolving a Type I titanyl phthalocyanine in a solution comprising a trihaloacetic acid and an alkylene halide; adding the mixture comprising the dissolved Type I titanyl phthalocyanine to a solution comprising an alcohol and an alkylene halide thereby precipitating a Type Y titanyl phthalocyanine; and treating the Type Y titanyl phthalocyanine with monohalobenzene.
    Type: Application
    Filed: June 22, 2006
    Publication date: December 27, 2007
    Inventors: Jin Wu, John F. Yanus, Satish R. Parikh, Anthony M. Horgan, Kent J. Evans, Geoffrey M.T. Foley, Satchidanand Mishra, Markus R. Silvestri, J. Robinson Cowdery-Corvan, David M. Skinner, Edward F. Grabowski, Kathleen M. Carmichael, Yonn K. Rasmussen, Donald J. Goodman, Liang-Bih Lin
  • Patent number: 7280791
    Abstract: A weldable intermediate transfer belt having a substrate with a homogeneous composition of polyaniline in an amount of from about 2 to about 25 percent by weight of total solids, and a thermoplastic polyimide in an amount of from about 75 to about 98 percent by weight of total solids, and the polyaniline has a particle size of from about 0.5 to about 5.0 microns, and an apparatus for forming images on a recording medium and incorporating the intermediate transfer belt.
    Type: Grant
    Filed: June 5, 2006
    Date of Patent: October 9, 2007
    Assignee: Xerox Corporation
    Inventors: Donald J. Goodman, Satish R. Parikh, Edward F. Grabowski, Matthew J. Torpey, M John Hinckel, Michael S. Roetker, Markus R. Silvestri, John J. Darcy, III, David W. Martin, Scott J. Griffin, Felix J. Santana, Robert J. Flanagan, Joellen Simone, Robert C. U. Yu, John P. Kerwawycz, Satchidanand Mishra
  • Patent number: 7166399
    Abstract: An electrostatographic imaging member having a charge-retentive surface and a substrate, an imaging layer to receive an electrostatic latent image thereon, wherein the imaging layer is positioned on one side of the substrate, and an anti-curl backing layer positioned on the substrate on a side opposite to that of the imaging layer, wherein the anti-curl backing layer has a polymer binder and lignin sulfonic acid doped polyaniline, and an image forming apparatus having the above imaging member or photoreceptor to receive an electrostatic latent image on a charge-retentive surface of the photoreceptor or imaging member; a development component to apply toner to the charge-retentive surface to develop the electrostatic latent image to form a developed image on the charge-retentive surface; a transfer member to transfer the developed image from the charge-retentive surface to a copy substrate; and a fixing component to fuse the developed image to the copy substrate.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: January 23, 2007
    Assignee: Xerox Corporation
    Inventors: Kathleen M. Carmichael, Robert C. U. Yu, Richard L. Post, Anthony M. Horgan, Satchidanand Mishra, Edward F. Grabowski, Satish R. Parikh, Donald J. Goodman, David M. Skinner
  • Patent number: 7130569
    Abstract: A weldable intermediate transfer belt having a substrate with a homogeneous composition of polyaniline in an amount of from about 2 to about 25 percent by weight of total solids, and a thermoplastic polyimide in an amount of from about 75 to about 98 percent by weight of total solids, and the polyaniline has a particle size of from about 0.5 to about 5.0 microns, and an apparatus for forming images on a recording medium and incorporating the intermediate transfer belt.
    Type: Grant
    Filed: July 2, 2004
    Date of Patent: October 31, 2006
    Assignee: Xerox Corporation
    Inventors: Donald J. Goodman, Satish R. Parikh, Edward F. Grabowski, Matthew J. Torpey, M John Hinckel, Michael S. Roetker, Markus R. Silvestri, John J. Darcy, III, David W. Martin, Scott J. Griffin, Felix J. Santana, Robert J. Flanagan, Joellen Simone, Robert C. U. Yu, John P. Kerwawycz, Satchidanand Mishra
  • Patent number: 7031647
    Abstract: A belt having a substrate with a first binder and a lignin sulfonic acid doped polyaniline dispersion, along with an image forming apparatus for forming images on a recording medium and having a charge-retentive surface to receive an electrostatic latent image thereon, a development component to apply toner to the charge-retentive surface to develop the electrostatic latent image to form a developed toner image on the charge retentive surface, a transfer member to transfer the developed image from the charge retentive surface to a copy substrate, and the transfer member has a substrate with a binder and a dispersion of lignin sulfonic acid doped polyaniline, and further, a fixing component to fuse the developed image to the copy substrate.
    Type: Grant
    Filed: April 14, 2004
    Date of Patent: April 18, 2006
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Robert C. U. Yu, Richard L. Post, Anthony M. Horgan, Edward F. Grabowski, Kathleen M. Carmichael, Satish R. Parikh, Bing R. Hsieh, Donald C. VonHoene
  • Patent number: 6970669
    Abstract: A belt loading apparatus has been provided for loading a flimsy continuous belt onto a belt support and drive assembly including a vertical front end having a first shape and without damage to the belt. The belt loading apparatus includes a wall member defining a sleeve including an outer surface having a total outer surface area, a first edge and a second and opposite edge. The second edge has a vertical profile having a second shape such that the second shape of the second edge is a mirror image of the first shape of the belt support and drive assembly. The belt loading apparatus then includes friction reducing members formed on the outer surface of the sleeve for temporarily supporting and spacing a flimsy continuous belt to be loaded onto the belt support and drive assembly. The friction reducing members each have a belt contact area such that a sum total of belt contact areas of all the friction reducing members is significantly less than the total outer surface area of the sleeve.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: November 29, 2005
    Assignee: Xerox Corporation
    Inventors: Satchidanand Mishra, Satish R. Parikh, Robert C. U. Yu, Edward A. Domm
  • Publication number: 20030049551
    Abstract: An electrostatographic article including: a substrate; a charge generator layer overcoated on the substrate and which layer is sensitive to blue light; and a charge transport layer overcoated on the charge generator layer and which charge transport layer is transparent to blue light.
    Type: Application
    Filed: September 7, 2001
    Publication date: March 13, 2003
    Applicant: Xerox Corporation
    Inventors: Satish R. Parikh, Kathleen M. Carmichael, Edward F. Grabowski, Andrew R. Melnyk, Liang-Bih Lin, Andronique Ioannidis, Dasarao K. Murti, Harold F. Hammond
  • Patent number: 6174637
    Abstract: A photo conducting imaging member has a charge generator layer including a binder containing at least a polycarbonate of formula (I):
    Type: Grant
    Filed: January 19, 2000
    Date of Patent: January 16, 2001
    Assignee: Xerox Corporation
    Inventors: Kathleen M. Carmichael, Satish R. Parikh
  • Patent number: 6096927
    Abstract: A process for recovery of N,N'-bis(alkylphenyl)-[1,1'-biphenyl]-4,4'-diamine from an electrophotographic imaging member, the process includingproviding an electrophotographic imaging member including at least one imaging layer, the imaging layer including a film forming binder and N,N'-bis(alkylphenyl)[1,1'-biphenyl]-4,4'-diamine,contacting the at least one imaging layer with warm toluene to dissolve toluene soluble materials including the film forming binder and N,N'-bis(alkylphenyl)-[1,1'-biphenyl]-4,4'-diamine to form a mixture containing undissolved material and a solution of toluene and the toluene soluble materials,isolating the solution from the undissolved material,concentrating the solution in a partial vacuum and with applied heat,cooling the concentrate,mixing the concentrate with acetone to precipitate the N,N'-bis(alkylphenyl)-[1,1'-biphenyl]-4,4'-diamine,separating the N,N'-bis(alkylphenyl)-[1,1'-biphenyl]-4,4'-diamine precipitate from the concentrate,washing the N,N'-bis(alkylphenyl)-[1,1'-biph
    Type: Grant
    Filed: August 2, 1999
    Date of Patent: August 1, 2000
    Assignee: Xerox Corporation
    Inventors: Satish R. Parikh, Edward J. Radigan, Jr., Anthony M. Horgan, John A. Bergfjord, Sr.
  • Patent number: 6071662
    Abstract: An electrostatographic imaging member including an anti-curl layer, a supporting substrate having an electrically conductive layer, at least one imaging layer, an optional ground strip layer and an optional overcoating layer, the anti-curl layer including a polycarbonate film forming polymer binder containing 3,3,5-trimethylcyclohexane groups in the polycarbonate moiety.
    Type: Grant
    Filed: July 23, 1998
    Date of Patent: June 6, 2000
    Assignee: Xerox Corporation
    Inventors: Kathleen M. Carmichael, Satish R. Parikh, Donald P. Sullivan, John A. Bergfjord, Sr.
  • Patent number: 5906904
    Abstract: An electrophotographic imaging member includinga support substrate layer comprising polyethylene naphthalate substantially free of any oligomers, having a glass transition temperature of between about 100.degree. C. and about 140.degree. C., having a thickness between about 75 micrometers (3 mils) and about 125 micrometers (5 mils) and having a Young's modulus of between about 650,000 and about 1,000,000 pounds per square inch,an electrically conductive ground plane layer c including titanium,a hole blocking layer,an optional adhesive layer,a charge generation layer includingphotoconductive particles dispersed in a film forming binder, anda hole transport layer, the hole transport layer being substantially non-absorbing in the spectral region at which the charge generation layer generates and injects photogenerated holes but being capable of supporting the injection of photogenerated holes from the charge generation layer and transporting the holes through the hole transport layer.
    Type: Grant
    Filed: March 27, 1998
    Date of Patent: May 25, 1999
    Assignee: Xerox Corporation
    Inventors: Satish R. Parikh, Edward F. Grabowski, Michael S. Roetker, Kent J. Evans
  • Patent number: 5139907
    Abstract: A layered photosensitive imaging member is modified by forming a low-reflection layer on the ground plane. The low-reflection layer serves to reduce an interference fringe contrast and according to a second aspect of the invention, layer adhesion is greatly improved when selecting TiO.sub.2 as the low-reflection material. In a preferred embodiment, low-reflection materials having index of refraction greater than 2.05 were found to be most effective in suppressing the interference fringe contrast.
    Type: Grant
    Filed: July 13, 1990
    Date of Patent: August 18, 1992
    Assignee: Xerox Corporation
    Inventors: Yonn K. Simpson, Edward F. Grabowski, Donald J. Teney, Satish R. Parikh, Neil S. Patterson