Patents by Inventor Jayant Neogi

Jayant Neogi 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: 9988722
    Abstract: A method of surface coating a metallic object, including removing substantially all of the existing silver sulfide tarnish if present, ultrasonically cleaning the object with immersion in a solvent, uniformly dispersing selected nanoparticles over the surface of the object by sonicating the object in an ultrasonic bath containing the selected nanoparticles. The invention further includes quickly rinsing the object with solvent upon removal from the ultrasonic bath to inhibit formation of large agglomerates, drying the object with a flow of gas, optically inspecting the object for the presence of agglomeration and applying a barrier layer conformal coating and a protective layer conformal coating.
    Type: Grant
    Filed: August 12, 2014
    Date of Patent: June 5, 2018
    Assignee: Serenity Technologies, Inc.
    Inventors: Suneeta S. Neogi, Jayant Neogi
  • Patent number: 9883723
    Abstract: A method to apply nano-crystalline diamond onto a selected substrate, including preparing Nanodiamond slurry of Nanodiamond particles dispersed in a medium. The medium may include a liquid or a sol-gel. The selected substrate is immersed in the Nanodiamond slurry for a predetermined period of time. Then the substrate is removed from the slurry. The substrate is then dried with a flow of inert gas. The substrate is left coated with a coating of the nanodiamond particles that are highly adherently held by van der Waals forces.
    Type: Grant
    Filed: July 24, 2015
    Date of Patent: February 6, 2018
    Assignee: Aryamond Singapore PTE. Limited
    Inventors: Suneeta Neogi, Jayant Neogi
  • Publication number: 20160029748
    Abstract: A method to apply nano-crystalline diamond onto a selected substrate, including preparing Nanodiamond slurry of Nanodiamond particles dispersed in a medium. The medium may include a liquid or a sol-gel. The selected substrate is immersed in the Nanodiamond slurry for a predetermined period of time. Then the substrate is removed from the slurry. The substrate is then dried with a flow of inert gas. The substrate is left coated with a coating of the nanodiamond particles that are highly adherently held by van der Waals forces.
    Type: Application
    Filed: July 24, 2015
    Publication date: February 4, 2016
    Inventors: Suneeta Neogi, Jayant Neogi
  • Patent number: 9108888
    Abstract: A method to apply nano-crystalline diamond onto a selected substrate, including preparing Nanodiamond slurry of nanodiamond particles dispersed in a medium. The medium may include a liquid or a sol-gel. The selected substrate is immersed in the Nanodiamond slurry for a predetermined period of time. Then the substrate is removed from the slurry. The substrate is then dried with a flow of inert gas. The substrate is left coated with a coating of the nanodiamond particles that are highly adherently held by van der Waals forces.
    Type: Grant
    Filed: July 20, 2009
    Date of Patent: August 18, 2015
    Inventors: Suneeta S. Neogi, Jayant Neogi
  • Publication number: 20150030872
    Abstract: A method of surface coating a metallic object, including removing substantially all of the existing silver sulfide tarnish if present, ultrasonically cleaning the object with immersion in a solvent, uniformly dispersing selected nanoparticles over the surface of the object by sonicating the object in an ultrasonic bath containing the selected nanoparticles. The invention further includes quickly rinsing the object with solvent upon removal from the ultrasonic bath to inhibit formation of large agglomerates, drying the object with a flow of gas, optically inspecting the object for the presence of agglomeration and applying a barrier layer conformal coating and a protective layer conformal coating.
    Type: Application
    Filed: August 12, 2014
    Publication date: January 29, 2015
    Inventors: Suneeta S. Neogi, Jayant Neogi
  • Patent number: 8802202
    Abstract: A method of surface coating a metallic object, including removing substantially all of the existing silver sulfide tarnish if present, ultrasonically cleaning the object with immersion in a solvent, uniformly dispersing selected nanoparticles over the surface of the object by sonicating the object in an ultrasonic bath containing the selected nanoparticles. The invention further includes quickly rinsing the object with solvent upon removal from the ultrasonic bath to inhibit formation of large agglomerates, drying the object with a flow of gas, optically inspecting the object for the presence of agglomeration and applying a barrier layer conformal coating and a protective layer conformal coating.
    Type: Grant
    Filed: March 7, 2011
    Date of Patent: August 12, 2014
    Inventors: Suneeta S. Neogi, Jayant Neogi
  • Patent number: 8431188
    Abstract: In accordance with the present invention, there are provided methods for imparting abrasion wear resistant color to “gemstones” by providing an integrated coating consisting of the color imparting agent and the abrasion wear resistant agent. The color imparting agent may provide the perception of color via interference phenomena or via bulk absorption phenomena. Abrasion wear resistance may be provided by integrating any of the materials such as DLC (diamond-like carbon), CVD diamond (CVDD), alumina, polymer-based materials, nitrides and carbonitrides. Abrasion wear resistant properties of DLC or CVDD may be further improved, in addition to improvement of other mechanical properties and inducing hydrophobicity, by incorporating certain elements into the deposited film.
    Type: Grant
    Filed: February 17, 2006
    Date of Patent: April 30, 2013
    Inventors: Suneeta Neogi, Jayant Neogi
  • Publication number: 20110217564
    Abstract: A method of surface coating a metallic object, including removing substantially all of the existing silver sulfide tarnish if present, ultrasonically cleaning the object with immersion in a solvent, uniformly dispersing selected nanoparticles over the surface of the object by sonicating the object in an ultrasonic bath containing the selected nanoparticles. The invention further includes quickly rinsing the object with solvent upon removal from the ultrasonic bath to inhibit formation of large agglomerates, drying the object with a flow of gas, optically inspecting the object for the presence of agglomeration and applying a barrier layer conformal coating and a protective layer conformal coating.
    Type: Application
    Filed: March 7, 2011
    Publication date: September 8, 2011
    Inventors: Suneeta Neogi, Jayant Neogi
  • Publication number: 20100151391
    Abstract: Analog data such as text and images are stored in microscopic analog format on a disk surface capable of maintaining the information for 1000 years or more whereby simple optical magnification will result in one being able to read the information formed therein. For a disk read by backlighting, as with microfiche, a photosensitive material is overlayed on hard metal surface which in turn is formed on a transparent glass or quartz material. A laser beam is focused on certain desired portions of the photosensitive material and the exposed material and underlying hard metal layer etched off to form pits down to the transparent layer corresponding to the analog information. The resulting disk can then be used to produce archival copies and distribution copies using hot embossing or other disclosed techniques.
    Type: Application
    Filed: January 4, 2010
    Publication date: June 17, 2010
    Applicant: SERENITY TECHNOLOGIES, INC.
    Inventors: Suneeta Neogi, Jayant Neogi
  • Publication number: 20100068503
    Abstract: A method to apply nano-crystalline diamond onto a selected substrate, including preparing Nanodiamond slurry of nanodiamond particles dispersed in a medium. The medium may include a liquid or a sol-gel. The selected substrate is immersed in the Nanodiamond slurry for a predetermined period of time. Then the substrate is removed from the slurry. The substrate is then dried with a flow of inert gas. The substrate is left coated with a coating of the nanodiamond particles that are highly adherently held by van der Waals forces.
    Type: Application
    Filed: July 20, 2009
    Publication date: March 18, 2010
    Inventors: Suneeta S. Neogi, Jayant Neogi
  • Patent number: 7666579
    Abstract: Analog data such as text and images are stored in microscopic analog format on a disk surface capable of maintaining the information for 1000 years or more whereby simple optical magnification will result in one being able to read the information formed therein. For a disk read by backlighting, as with microfiche, a photosensitive material is overlayed on hard metal surface which in turn is formed on a transparent glass or quartz material. A laser beam is focused on certain desired portions of the photosensitive material and the exposed material and underlying hard metal layer etched off to form pits down to the transparent layer corresponding to the analog information. The resulting disk can then be used to produce archival copies and distribution copies using hot embossing or other disclosed techniques.
    Type: Grant
    Filed: September 16, 2002
    Date of Patent: February 23, 2010
    Assignee: Serenity Technologies, Inc.
    Inventors: Suneeta Neogi, Jayant Neogi
  • Patent number: 7459702
    Abstract: The invention comprises a two-step process for achieving an ultra-polish finish on materials such as gemstones and the like by first performing a chemical-mechanical polishing of the material using an intermetallic material as the grinding medium followed by a gas cluster ion beam (GCIB) treatment. The intermetallic grinding wheel is formed of carbide-forming metals in the form of intermetallics consisting of one kind or more of elements selected from the group of Al, Cr, Mn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Os, Ir and Pt, and one kind or more of elements selected from the group of Ti, V, Zr, Nb, Mo, Hf, Ta and W. The gas cluster ion beams are comprised of gas clusters having nano-sized aggregates of materials that are gaseous under conditions of standard temperature and pressure. Such clusters can be ionized by electron bombardment or other means, permitting the gas clusters to be formed into directed beams of known and controllable energy.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: December 2, 2008
    Inventors: Jayant Neogi, Suneeta Neogi
  • Publication number: 20060182883
    Abstract: In accordance with the present invention, there are provided methods for imparting abrasion wear resistant color to “gemstones” by providing an integrated coating consisting of the color imparting agent and the abrasion wear resistant agent. The color imparting agent may provide the perception of color via interference phenomena or via bulk absorption phenomena. Abrasion wear resistance may be provided by integrating any of the materials such as DLC (diamond-like carbon), CVD diamond (CVDD), alumina, polymer-based materials, nitrides and carbonitrides. Abrasion wear resistant properties of DLC or CVDD may be further improved, in addition to improvement of other mechanical properties and inducing hydrophobicity, by incorporating certain elements into the deposited film.
    Type: Application
    Filed: February 17, 2006
    Publication date: August 17, 2006
    Inventors: Suneeta Neogi, Jayant Neogi
  • Publication number: 20060102854
    Abstract: The invention comprises a two-step process for achieving an ultra-polish finish on materials such as gemstones and the like by first performing a chemical-mechanical polishing of the material using an intermetallic material as the grinding medium followed by a gas cluster ion beam (GCIB) treatment. The intermetallic grinding wheel is formed of carbide-forming metals in the form of intermetallics consisting of one kind or more of elements selected from the group of Al, Cr, Mn, Fe, Co, Ni, Cu, Ru, Rh, Pd, Os, Ir and Pt, and one kind or more of elements selected from the group of Ti, V, Zr, Nb, Mo, Hf, Ta and W. The gas cluster ion beams are comprised of gas clusters having nano-sized aggregates of materials that are gaseous under conditions of standard temperature and pressure. Such clusters can be ionized by electron bombardment or other means, permitting the gas clusters to be formed into directed beams of known and controllable energy.
    Type: Application
    Filed: October 26, 2005
    Publication date: May 18, 2006
    Inventors: Jayant Neogi, Suneeta Neogi
  • Publication number: 20030120613
    Abstract: A method and apparatus for marking, identifying, customizing, and tracking objects and mined materials such as gemstones and precious metals. An initial digital identifier, such as a matrix (100), is encoded with source data. The initial digital identifier is decoded, and the source data is recorded to a database (1520). The gemstone passes from between parties through one or more transactions. Transactional data is also written to the database. After a series of transactions, the rough gemstone (1600) is cut into one or more finished gemstones (1610, 1620). The quality attributes of the polished gemstones are analyzed and recorded to the database. Based on the database information, a unique identifier is generated for each polished gemstone. The unique identifier and the database data are encoded into a digital identifier such as a matrix. Additionally, an owner may input data which is encoded into the same or a separate matrix. The matrix is then applied to the gemstone.
    Type: Application
    Filed: January 28, 2003
    Publication date: June 26, 2003
    Inventor: Jayant Neogi