Patents by Inventor Hamdy Elwakil

Hamdy Elwakil 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).

  • Publication number: 20050118401
    Abstract: The present invention is a decorative glass laminate comprising a rigid interlayer bearing a printed image that has been printed onto at least one of the interlayer surfaces, and a process for preparing same.
    Type: Application
    Filed: August 6, 2004
    Publication date: June 2, 2005
    Inventors: Rebecca Smith, Hamdy Elwakil
  • Publication number: 20050048229
    Abstract: The present invention is a decorative laminated article comprising an image bearing thermoplastic interlayer wherein the image has been printed on the interlayer using an ink jet printing process, wherein the pigment comprises at least one pigment selected from the group consisting of: PY 120; PY 155; PY 128; PY 180; PY 95; PY 93; PV19/PR 202; PR 122; PB 15:4; PB 15:3; and PBI 7. The interlayer material of the present invention can be, for example, PVB, PET, or polyurethane.
    Type: Application
    Filed: June 28, 2004
    Publication date: March 3, 2005
    Inventors: Hamdy Elwakil, Ronald Roman, Rebecca Smith, Chaucer Tang
  • Publication number: 20040187732
    Abstract: This invention pertains to an ink set for inkjet printing, in particular to a non-aqueous ink set comprising one or more inks based on certain pigment colorants. The invention also pertains to a method of inkjet printing with this ink set.
    Type: Application
    Filed: August 20, 2003
    Publication date: September 30, 2004
    Inventors: Ronald Roman, Hamdy A. Elwakil
  • Patent number: 6478862
    Abstract: A method of making an ink jet ink that entails combining a water miscible organic solvent, water, and a pigment dispersion, and blending the water miscible organic solvent, the water, and the pigment dispersion together to form the ink jet ink, wherein the ink jet ink is capable of exhibiting no pigment precipitation, no pigment agglomeration, and no pigment flocculation after being stored in the absence of any agitation for a period of at least about 1 month.
    Type: Grant
    Filed: March 14, 2000
    Date of Patent: November 12, 2002
    Assignee: MacDermid Acumen, Inc.
    Inventor: Hamdy A. Elwakil
  • Patent number: 6290762
    Abstract: A method of printing an image on a substrate with an ink jet printer, the method including the step of ejecting a plurality of discrete portions of ink from the ink jet printer toward the substrate, the ink including at least three different inks with each ink of each different pair of inks containing either different dyes or different concentrations of the same dye, and the step of sequentially forming a plurality of layers of ink dots on the substrate using the discrete portions of ink, with adjacent layers having overlapping ink dots formed of different inks, the plurality of layers of ink dots constituting the image, and the image fully covering all portions of the substrate beneath the image.
    Type: Grant
    Filed: November 26, 1997
    Date of Patent: September 18, 2001
    Assignee: MacDermid-Acumen, Inc.
    Inventor: Hamdy A. Elwakil
  • Patent number: 6231654
    Abstract: A method of forming a printing ink, the method including combining a nitrogen-containing cyclic organic compound, a glycol ether or a glycol ether acetate, and a colorant; and homogeneously blending the nitrogen-containing cyclic organic compound, the glycol ether or the glycol ether acetate, and the colorant to form the ink jet printing ink.
    Type: Grant
    Filed: April 30, 1999
    Date of Patent: May 15, 2001
    Assignee: MacDermid Acumen, Inc.
    Inventor: Hamdy A. Elwakil
  • Patent number: 6187439
    Abstract: Encapsulated particles, such as magnetic particles, colored pigments, or carbon black, with high chemical affinity for ink vehicles. The encapsulated particles of this invention are suitable for printing inks, as well as for magnetic recording systems, such as audio and video tapes and magnetic storage disks, when the encapsulated particles are magnetic particles. The encapsulated particles comprise particles having a coating on their surface, said coating comprising in one embodiment an ionomer and in another embodiment, an oil, such as soya oil, and optionally a thixotropic agent, and/or a binder resin. The method of the present invention for making such encapsulated particles avoids the use of volatile organic solvents and provides printing inks and coating compositions comprising such encapsulated particles, that also avoid the use of volatile organic solvents.
    Type: Grant
    Filed: November 4, 1994
    Date of Patent: February 13, 2001
    Assignee: Marconi Data Systems Inc.
    Inventor: Hamdy A. Elwakil
  • Patent number: 5833743
    Abstract: A method of printing an image on a substrate with an ink jet printer, the method including the step of ejecting a plurality of discrete portions of ink from the ink jet printer toward the substrate, the ink including at least three different inks with each ink of each different pair of inks containing either different dyes or different concentrations of the same dye, and the step of sequentially forming a plurality of layers of ink dots on the substrate using the discrete portions of ink, with adjacent layers having overlapping ink dots formed of different inks, the plurality of layers of ink dots constituting the image, and the image fully covering all portions of the substrate beneath the image.
    Type: Grant
    Filed: September 10, 1996
    Date of Patent: November 10, 1998
    Assignee: Colorspan Corporation
    Inventor: Hamdy A. Elwakil
  • Patent number: 5665429
    Abstract: Encapsulated particles, such as magnetic particles, colored pigments, or carbon black, with high chemical affinity for ink vehicles. The encapsulated particles of this invention are suitable for printing inks, as well as for magnetic recording systems, such as audio and video tapes and magnetic storage disks, when the encapsulated particles are magnetic particles. The encapsulated particles comprise particles having a coating on their surface, said coating comprising in one embodiment an ionomer and in another embodiment, an oil, such as soya oil, and optionally a thixotropic agent, and/or a binder resin. The method of the present invention for making such encapsulated particles avoids the use of volatile organic solvents and provides printing inks and coating compositions comprising such encapsulated particles, that also avoid the use of volatile organic solvents.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: September 9, 1997
    Assignee: Videojet Systems International, Inc.
    Inventor: Hamdy A. Elwakil
  • Patent number: 5574078
    Abstract: A hot melt composition that comprises a color concentrate and a base component, the color concentrate comprising a colorant, and a hot melt ink concentrate that comprises a colorant, a non-wax colorant blend agent, and a resin.
    Type: Grant
    Filed: November 10, 1994
    Date of Patent: November 12, 1996
    Assignee: Lasermaster Corporation
    Inventor: Hamdy A. Elwakil
  • Patent number: 5543219
    Abstract: Encapsulated particles, such as magnetic particles, colored pigments, or carbon black, with high chemical affinity for ink vehicles. The encapsulated particles of this invention are suitable for printing inks, as well as for magnetic recording systems, such as audio and video tapes and magnetic storage disks, when the encapsulated particles are magnetic particles. The encapsulated particles comprise particles having a coating on their surface, said coating comprising in one embodiment an ionomer and in another embodiment, an oil, such as soya oil, and optionally a thixotropic agent, and/or a binder resin. The method of the present invention for making such encapsulated particles avoids the use of volatile organic solvents and provides printing inks and coating compositions comprising such encapsulated particles, that also avoid the use of volatile organic solvents.
    Type: Grant
    Filed: May 23, 1995
    Date of Patent: August 6, 1996
    Assignee: A.B. Dick Company
    Inventor: Hamdy A. Elwakil