Patents by Inventor Shadi L. Malhotra

Shadi L. Malhotra 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: 5660962
    Abstract: Simulated photographic-quality prints are created using non-photographic imaging such as xerography and ink jet. Reverse or wrong reading toner images are formed on a transparent substrate which is adhered to a coated backing sheet. The backing sheet is coated with a polymer material which seves as an adhesive and has a glass transition temperature less than 55.degree. C. A hydrophilic polymer coating having a melting point greater than 50.degree. C. contacting the adhesive polymer serves as a wetting agent for providing an enhanced optical interface as well as protection for the adhesive polymer which has a lower melting point than the adhesive polymer.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: August 26, 1997
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Leland D. Green
  • Patent number: 5659348
    Abstract: Disclosed is a recording sheet which comprises a substrate and a material selected from the group consisting of purine compounds, pyrimidine compounds, benzimidazole compounds, imidazolidine compounds, urazole compounds, pyrazole compounds, triazole compounds, benzotriazole compounds, tetrazole compounds, pyrazine compounds, and mixtures thereof. Also disclosed is a recording sheet which consists essentially of a substrate, at least one material selected from the group consisting of purine compounds, pyrimidine compounds, benzimidazole compounds, imidazolidine compounds, urazole compounds, pyrazole compounds, triazole compounds, benzotriazole compounds, tetrazole compounds, pyrazine compounds, and mixtures thereof, an optional binder, an optional antistatic agent, an optional biocide, and an optional filler.
    Type: Grant
    Filed: May 25, 1995
    Date of Patent: August 19, 1997
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5657064
    Abstract: Disclosed is a recording sheet which comprises a substrate and an additive material selected from the group consisting of pyrrole compounds, pyrrolidine compounds, pyridine compounds, piperidine compouds, homopiperidine compounds, quinoline compounds, isoquinoline compounds, quinuclidine compounds, indole compounds, indazole compounds, and mixtures thereof.
    Type: Grant
    Filed: May 24, 1995
    Date of Patent: August 12, 1997
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5624743
    Abstract: A transparency comprised of a supporting substrate, thereover a first coating layer comprised of a binder having a glass transition temperature of less than about 55.degree. C., a cellulosic viscosity modifier, a lightfastness inducing agent and a biocide; and a second ink-receiving coating layer comprised of a hydrophilic binder, an oxyalkylene containing compound, a dye mordant, an optional filler, and an optional biocide; and wherein the first coating is in contact with the substrate and is situated between the substrate and the second ink coating, and which transparency possesses a haze value of from about 1 to about 10 and a lightfastness value of from about 70 to about 95.
    Type: Grant
    Filed: February 26, 1996
    Date of Patent: April 29, 1997
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5612777
    Abstract: An apparatus and method for creating color images which are coated with a composition including a lightfastness inducing material and a hydrophobic polymeric binder which protects the images from rough handling and degradation from exposure to UV radation in the light.
    Type: Grant
    Filed: January 11, 1996
    Date of Patent: March 18, 1997
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5589277
    Abstract: Disclosed is a recording sheet which comprises a paper substrate and a material selected from the group consisting of monomeric amino acids, monomeric hydroxy acids, monomeric polycarboxyl compounds, and mixtures thereof. Another embodiment of the present invention is directed to a recording sheet which comprises a substrate and a material selected from the group consisting of monomeric amino acids, monomeric hydroxy acids, and mixtures thereof.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: December 31, 1996
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5563014
    Abstract: Disclosed is a migration imaging member comprising (a) a substrate, (b) a softenable layer comprising a softenable material and a photosensitive migration marking material, and (c) a transparentizing agent which transparentizes migration marking material in contact therewith contained in at least one layer of the migration imaging member.
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: October 8, 1996
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Liqin Chen, Marie-Eve Perron
  • Patent number: 5534374
    Abstract: Disclosed is a migration imaging member comprising (a) a substrate, (b) a softenable layer situated on one surface of the substrate, said softenable layer comprising a softenable material and a photosensitive migration marking material, and (c) an antistatic layer situated on the surface of the substrate opposite to the surface in contact with the softenable layer.
    Type: Grant
    Filed: May 1, 1995
    Date of Patent: July 9, 1996
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5514505
    Abstract: Disclosed is a process which comprises (a) providing a migration imaging member comprising (1) a substrate and (2) a softenable layer comprising a softenable material and a photosensitive migration marking material present in the softenable layer as a monolayer of particles situated at or near the surface of the softenable layer spaced from the substrate; (b) uniformly charging the imaging member; (3) imagewise exposing the charged imaging member to activating radiation at a wavelength to which the migration marking material is sensitive; (d) subsequent to step (c), causing the softenable material to soften and enabling a first portion of the migration marking material to migrate through the softenable material toward the substrate in an imagewise pattern while a second portion of the migration marking material remains substantially unmigrated within the softenable layer; and (e) contacting the second portion of the migration marking material with a transparentizing agent which transparentizes migration marki
    Type: Grant
    Filed: May 15, 1995
    Date of Patent: May 7, 1996
    Assignee: Xerox Corporation
    Inventors: William W. Limburg, Joseph Mammino, George Liebermann, Clifford H. Griffiths, Michael M. Shahin, Shadi L. Malhotra, Liqin Chen, Marie-Eve Perron
  • Patent number: 5500668
    Abstract: Disclosed is a printing process which comprises (a) providing a recording sheet which comprises a substrate, at least one monomeric salt, an optional binder, an optional antistatic agent, an optional biocide, and an optional filler; (b) applying an aqueous recording liquid to the recording sheet in an imagewise pattern; and (c) thereafter exposing the substrate to microwave radiation, thereby drying the recording liquid on the recording sheet.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: March 19, 1996
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Kurt B. Gundlach, Richard L. Colt
  • Patent number: 5457486
    Abstract: Disclosed is a recording sheet which comprises (a) a base sheet; (b) a material selected from the group consisting of tetrazolium compounds, indolinium compounds, imidazolinium compounds, and mixtures thereof; (c) an optional pigment; and (d) an optional binder.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: October 10, 1995
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Brent S. Bryant, Doris K. Weiss
  • Patent number: 5453344
    Abstract: An imaging member comprised of supporting substrate, a photogenerator layer and a charge transport layer comprised of charge transport molecules dispersed in a resin binder comprised of styrene-arylmethacrylate polymers, styrene-alkylmethacrylate polymers, styrene-diene polymers, alpha-methylstyrene polymers, or vinyl polymers.
    Type: Grant
    Filed: January 28, 1994
    Date of Patent: September 26, 1995
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Dasarao K. Murti, Brent S. Bryant
  • Patent number: 5451466
    Abstract: Disclosed is a recording sheet which comprises (a) a substrate; (b) a coating on the substrate which comprises (i) a binder selected from the group consisting of (A) copolymers of styrene and at least one other monomer; (B) copolymers of acrylic monomers and at least one other monomer; and (C) mixtures thereof; and (ii) an additive having a melting point of less than about 65.degree. C. and a boiling point of more than about 150.degree. C. and selected from the group consisting of (A) diphenyl compounds; (B) phenyl alkanes; (C) indan compounds; (D) benzene derivatives; (E) benzyl alcohols; (F) phenyl alcohols; (G) menthol; (H) aromatic amines; and (I) mixtures thereof; (c) an optional filler; (d) an optional antistatic agent; and (e) an optional biocide.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: September 19, 1995
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5451458
    Abstract: Disclosed is a recording sheet which comprises (a) a substrate; (b) a coating on the substrate which comprises (1) a binder selected from the group consisting of (A) polyesters; (B) polyvinyl acetals; (C) vinyl alcohol-vinyl acetal copolymers; (D) polycarbonates; and (E) mixtures thereof; and (2) an additive having a melting point of less than about 65.degree. C. and a boiling point of more than about 150.degree. C. and selected from the group consisting of (1) furan derivatives; (2) cyclic ketones; (3) lactones; (4) cyclic alcohols; (5) cyclic anhydrides; (6) acid esters; (7) phosphine oxides; and (8) mixtures thereof; (c) an optional filler; (d) an optional antistatic agent; and (e) an optional biocide.
    Type: Grant
    Filed: February 15, 1994
    Date of Patent: September 19, 1995
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5441795
    Abstract: Disclosed is a recording sheet which comprises a base sheet and a material selected from the group consisting of pyridinium compounds, piperazinium compounds, and mixtures thereof.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: August 15, 1995
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Brent S. Bryant
  • Patent number: 5330823
    Abstract: Disclosed is a substantially transparent recording sheet which comprises (a) a substantially transparent substrate; (b) a binder polymer coated on the substrate; and (c) particles of an antistatic component, said particles being present on at least the surface of the binder polymer coating.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: July 19, 1994
    Assignee: Xerox Corporation
    Inventor: Shadi L. Malhotra
  • Patent number: 5320902
    Abstract: Disclosed is a recording sheet which consists essentially of a substrate and, in contact with the substrate, a monoammonium compound of the formula: ##STR1## wherein R is an alkyl group, X is selected from the group consisting of fluoride, chloride, bromide, iodide, and astatide, and R', R", and R"' are each independently selected from the group consisting of alkyl groups, substituted alkyl groups, aryl groups, substituted aryl groups, arylalkyl groups, and substituted arylalkyl groups, wherein R, R', R" and R"' are either the same as or different from each other; and mixtures thereof; an optional binder component; and an optional filler component.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: June 14, 1994
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Brent S. Bryant, Doris K. Weiss
  • Patent number: 5314747
    Abstract: Disclosed is a recording sheet which comprises (a) a base sheet; (b) a cationic sulfur compound selected from the group consisting of sulfonium compounds, thiazolium compounds, benzothiazolium compounds, and mixtures thereof; (c) an optional binder; and (d) an optional pigment.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: May 24, 1994
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Brent S. Bryant
  • Patent number: 5302249
    Abstract: A paper comprised of a supporting substrate with a coating comprised of a desizing component and a hydrophilic polymer, and more specifically in an embodiment the paper is comprised of a paper comprised of a supporting substrate treated with desizing agents selected from the group consisting of (1) hydrophilic poly(dialkylsiloxanes); (2) poly(alkylene glycol); (3) poly(propylene oxide)-poly(ethylene oxide) copolymers; (4) fatty ester modified compounds of phosphate, sorbitan, glycerol, poly(ethylene glycol), sulfosuccinic acid, sulfonic acid and alkyl amine; (5) poly(oxyalkylene) modified compounds of sorbitan esters, fatty amines, alkanol amides, castor oil, fatty acids and fatty alcohols; (6) quaternary alkosulfate compounds; (7) fatty imidazolines; and mixtures thereof.
    Type: Grant
    Filed: January 25, 1990
    Date of Patent: April 12, 1994
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, David F. Rutland, Arthur Y. Jones
  • Patent number: 5302439
    Abstract: Disclosed is a recording sheet which comprises (a) a substrate; (b) a coating on the substrate which comprises a binder and a material having a melting point of less than about 65.degree. C. and a boiling point of greater than 150.degree. C. and selected from the group consisting of alkyl phenones, alkyl ketones, halogenated alkanes, alkyl amines, alkyl anilines, alkyl diamines, alkyl alcohols, alkyl diols, halogenated alkyl alcohols, alkane alkyl esters, saturated fatty acids, unsaturated fatty acids, alkyl aldehydes, alkyl anhydrides, alkanes, and mixtures thereof; (c) an optional traction agent; and (d) an optional antistatic agent.
    Type: Grant
    Filed: March 19, 1993
    Date of Patent: April 12, 1994
    Assignee: Xerox Corporation
    Inventors: Shadi L. Malhotra, Brent S. Bryant