Patents by Inventor Vijayen S. Veerasamy

Vijayen S. Veerasamy 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: 20240092688
    Abstract: A transparent structure may have multiple layers, such as an inner layer and an outer layer, which may be formed from glass. The transparent structure may have a large, curved surface with compound curvature and high geometric strain and may include one or more layers. To apply a physical vapor deposition coating with uniform thickness on a curved surface, cathode power may be modulated during the deposition, a mask having an opening with a curvature matching the curved surface may be used, a cathode shape may be varied, the cathodes may sputter the coating outwardly toward the curved surface, a magnetic field may modulate the flux produced by the cathodes, and/or the pressure and/or flow of gas may be adjusted. By modifying the physical vapor deposition coater in one or more of these ways, the coating may have a uniform thickness, and therefore a uniform color, across the curved surface.
    Type: Application
    Filed: August 10, 2023
    Publication date: March 21, 2024
    Inventor: Vijayen S. Veerasamy
  • Publication number: 20240077661
    Abstract: A system may have a support structure and a window that separate an exterior region from an interior region. The window may have one or more glass layers with a thin-film interference filter that is configured to block infrared light while transmitting visible light. The filter may be transparent to radio-frequency signals so that a radio-frequency transceiver in the interior may transmit and receive radio-frequency signals through the filter. The filter may have one or more thin-film metal layers such as one or more thin-film crystalline silver layers that are patterned to form isolated metal islands and may have transparent inorganic thin-film dielectric layers interspersed with the metal layers.
    Type: Application
    Filed: June 23, 2023
    Publication date: March 7, 2024
    Inventor: Vijayen S. Veerasamy
  • Patent number: 11850824
    Abstract: In certain example embodiments, moisture sensors, defoggers, etc., and/or related methods, are provided, More particularly, certain example embodiments relate to moisture sensors and/or defoggers that may be used in various applications such as, for example, refrigerator/freezer merchandisers, vehicle windows, building windows, etc. When condensation or moisture is detected, an appropriate action may be taken (e.g., actuating windshield wipers, turning on a defroster, triggering the heating of a merchandiser door or window, etc.). Bayesian approaches optionally, may be implemented in certain example embodiments in an attempt to improve moisture detection accuracy. For instance, models of various types of disturbances may be developed and, based on live data and a priori information known about the model, a probability of the model being accurate is calculated. If a threshold value is met, the model may be considered a match and, optionally, a corresponding appropriate action may be taken.
    Type: Grant
    Filed: February 15, 2021
    Date of Patent: December 26, 2023
    Assignee: GUARDIAN GLASS, LLC
    Inventor: Vijayen S. Veerasamy
  • Publication number: 20230406761
    Abstract: A transparent structure may have structural layers such as an inner layer and an outer layer, which may be formed from glass. The transparent structure may be curved. At least one of the inner layer and the outer layer may be coated with an infrared reflection coating. The infrared reflection coating may be formed from multiple optical resonators. Each of the resonators may include two half-mirrors separated by a dielectric layer. The half-mirrors may include infrared reflective material, such as silver. At least some of the resonators may additionally include a getter layer. The getter layer may be formed from amorphous material, nanoparticles in dielectric material, or other desired material, and may protect the infrared reflective material while the infrared reflection coating is being deposited. Additionally, the getter layer may reduce the color shift exhibited by high angle light as it passes through the transparent structure.
    Type: Application
    Filed: March 30, 2023
    Publication date: December 21, 2023
    Inventors: Vijayen S. Veerasamy, Peter F. Masschelein
  • Publication number: 20230177744
    Abstract: Certain example embodiments relate to an electronic device, including a user interface, and processing resources including at least one processor and a memory. The memory stores a program executable by the processing resources to simulate a view of an image through at least one viewer-selected product that is virtually interposed between a viewer using the electronic device and the image by performing functionality including: acquiring the image; facilitating viewer selection of the at least one product in connection with the user interface; retrieving display properties associated with the at least one viewer-selected product; generating, for each said viewer-selected product, a filter to be applied to the acquired image based on retrieved display properties; and generating, for display via the electronic device, an output image corresponding to the generated filter(s) being applied to the acquired image. The electronic device in certain example embodiments may be a smartphone, tablet, and/or the like.
    Type: Application
    Filed: February 3, 2023
    Publication date: June 8, 2023
    Applicant: Guardian Glass, LLC
    Inventors: Alexander Sobolev, Vijayen S. Veerasamy
  • Patent number: 11600027
    Abstract: Certain example embodiments relate to an electronic device, including a user interface, and processing resources including at least one processor and a memory. The memory stores a program executable by the processing resources to simulate a view of an image through at least one viewer-selected product that is virtually interposed between a viewer using the electronic device and the image by performing functionality including: acquiring the image; facilitating viewer selection of the at least one product in connection with the user interface; retrieving display properties associated with the at least one viewer-selected product; generating, for each said viewer-selected product, a filter to be applied to the acquired image based on retrieved display properties; and generating, for display via the electronic device, an output image corresponding to the generated filter(s) being applied to the acquired image. The electronic device in certain example embodiments may be a smartphone, tablet, and/or the like.
    Type: Grant
    Filed: September 26, 2019
    Date of Patent: March 7, 2023
    Assignee: GUARDIAN GLASS, LLC
    Inventors: Alexander Sobolev, Vijayen S. Veerasamy
  • Publication number: 20220340482
    Abstract: An electronic device may have a housing surrounding an interior in which electrical components are mounted. A display may be mounted to housing structures in the device. The housing may have a rear wall. The display cover layer and rear wall of the housing may be formed from transparent glass layers. Coatings may be formed on inwardly and/or facing surfaces of the transparent glass layers. A coating on a transparent glass layer may be formed from one or more PVD layers. A buffer layer that includes a hybrid material with an organic component may be interposed between the glass layer and the PVD layers to increase the retained bend strength of the glass layer. Alternatively or additionally, the PVD layers may form a thin-film interference filter, and some of the PVD layers may be formed from the hybrid material to increase the retained bend strength of the glass layer.
    Type: Application
    Filed: March 17, 2022
    Publication date: October 27, 2022
    Inventors: Martin Melcher, Vijayen S. Veerasamy
  • Patent number: 11236014
    Abstract: Certain example embodiments relate to ultra-fast laser treatment of silver-inclusive (low-emissivity) low-E coatings, coated articles including such coatings, and/or associated methods. The low-E coating is formed on a substrate (e.g., borosilicate or soda lime silica glass), with the low-E coating including at least one sputter-deposited silver-based layer, and with each said silver-based layer being sandwiched between one or more dielectric layers. The low-E coating is exposed to laser pulses having a duration of no more than 10?12 seconds, a wavelength of 355-500 nm, and an energy density of more than 30 kW/cm2. The exposing is performed so as to avoid increasing temperature of the low-E coating to more than 300 degrees C. while also reducing (a) grain boundaries with respect to, and vacancies in, each said silver-based layer, (b) each said silver-based layer's refractive index, and (c) emissivity of the low-E coating compared to its as-deposited form.
    Type: Grant
    Filed: October 12, 2020
    Date of Patent: February 1, 2022
    Assignees: GUARDIAN GLASS, LLC, GUARDIAN EUROPE S.A.R.L.
    Inventors: Vijayen S. Veerasamy, Bernd Disteldorf
  • Publication number: 20220023973
    Abstract: Certain example embodiments of this invention relate to techniques for laser ablating/scribing peripheral edges of a coating (e.g., a low-emissivity, mirror, or other coating) on a glass or other substrate in a pre- or post-laminated assembly, pre- or post-assembled insulated glass unit, and/or other product, in order to slow or prevent corrosion of the coating. For example, a 1064 nm or other wavelength laser may be used to scribe lines into the metal and/or metallic layer(s) in a low-emissivity or other coating provided in an already-laminated or already-assembled insulated glass unit or other product, e.g., around its periphery. The scribe lines decrease electron mobility from the center of the coating to the environment and, thus, slow and sometimes even prevent the onset of electrochemical corrosion. Associated products, methods, and kits relating to same also are contemplated herein.
    Type: Application
    Filed: October 8, 2021
    Publication date: January 27, 2022
    Applicant: GUARDIAN GLASS, LLC
    Inventors: Vijayen S. VEERASAMY, Robert A. VANDAL
  • Patent number: 11148228
    Abstract: Certain example embodiments of this invention relate to techniques for laser ablating/scribing peripheral edges of a coating (e.g., a low-emissivity, mirror, or other coating) on a glass or other substrate in a pre- or post-laminated assembly, pre- or post-assembled insulated glass unit, and/or other product, in order to slow or prevent corrosion of the coating. For example, a 1064 nm or other wavelength laser may be used to scribe lines into the metal and/or metallic layer(s) in a low-emissivity or other coating provided in an already-laminated or already-assembled insulated glass unit or other product, e.g., around its periphery. The scribe lines decrease electron mobility from the center of the coating to the environment and, thus, slow and sometimes even prevent the onset of electrochemical corrosion. Associated products, methods, and kits relating to same also are contemplated herein.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: October 19, 2021
    Assignee: GUARDIAN GLASS, LLC
    Inventors: Vijayen S. Veerasamy, Robert A. Vandal
  • Publication number: 20210256408
    Abstract: In certain example embodiments, moisture sensors, defoggers, etc., and/or related methods, are provided. More particularly, certain example embodiments relate to moisture sensors and/or defoggers that may be used in various applications such as, for example, refrigerator/freezer merchandisers, vehicle windows, building windows, etc. When condensation or moisture is detected, an appropriate action may be taken (e.g., actuating windshield wipers, turning on a defroster, triggering the heating of a merchandiser door or window, etc.). Bayesian approaches optionally may be implemented in certain example embodiments in an attempt to improve moisture detection accuracy. For instance, models of various types of disturbances may be developed and, based on live data and a priori information known about the model, a probability of the model being accurate is calculated. If a threshold value is met, the model may be considered a match and, optionally, a corresponding appropriate action may be taken.
    Type: Application
    Filed: February 15, 2021
    Publication date: August 19, 2021
    Applicant: GUARDIAN GLASS, LLC
    Inventor: Vijayen S. VEERASAMY
  • Patent number: 10987902
    Abstract: Certain example embodiments of this invention relate to techniques for laser ablating/scribing peripheral edges of a coating (e.g., a low-emissivity, mirror, or other coating) on a glass or other substrate in a pre- or post-laminated assembly, pre- or post-assembled insulated glass unit, and/or other product, in order to slow or prevent corrosion of the coating. For example, a 1064 nm or other wavelength laser may be used to scribe lines into the metal and/or metallic layer(s) in a low-emissivity or other coating provided in an already-laminated or already-assembled insulated glass unit or other product, e.g., around its periphery. The scribe lines decrease electron mobility from the center of the coating to the environment and, thus, slow and sometimes even prevent the onset of electrochemical corrosion. Associated products, methods, and kits relating to same also are contemplated herein.
    Type: Grant
    Filed: July 10, 2017
    Date of Patent: April 27, 2021
    Assignee: GUARDIAN GLASS, LLC
    Inventor: Vijayen S. Veerasamy
  • Patent number: 10921672
    Abstract: A switchable window includes an electro-optical layer of or including an anisotropic gel of polymer stabilized highly chiral liquid crystal, for example, blue phase liquid crystal, encapsulated in, for example, a mesogenic polymer inclusive shell, that forms a self-assembled, three-dimensional photonic crystal that remains electro-optically switchable under a moderate applied voltage (e.g., electric field). The liquid crystal (LC) arrangement may be achieved via a polymer assembled blue phase liquid crystal system having a substantially continuous polymer structure case surrounding well-defined discrete bodies of liquid crystal material arranged in a cellular manner. These assembled structures globally connect to form a matrix. This provides for reduction of angular birefringence of highly chiral LC systems, which advantageously reduces haze in applications such as switchable windows.
    Type: Grant
    Filed: March 23, 2017
    Date of Patent: February 16, 2021
    Assignee: Guardian Glass, LLC
    Inventor: Vijayen S. Veerasamy
  • Publication number: 20210024410
    Abstract: Certain example embodiments relate to ultra-fast laser treatment of silver-inclusive (low-emissivity) low-E coatings, coated articles including such coatings, and/or associated methods. The low-E coating is formed on a substrate (e.g., borosilicate or soda lime silica glass), with the low-E coating including at least one sputter-deposited silver-based layer, and with each said silver-based layer being sandwiched between one or more dielectric layers. The low-E coating is exposed to laser pulses having a duration of no more than 1012 seconds, a wavelength of 355-500 nm, and an energy density of more than 30 kW/cm2. The exposing is performed so as to avoid increasing temperature of the low-E coating to more than 300 degrees C. while also reducing (a) grain boundaries with respect to, and vacancies in, each said silver-based layer, (b) each said silver-based layer's refractive index, and (c) emissivity of the low-E coating compared to its as-deposited form.
    Type: Application
    Filed: October 12, 2020
    Publication date: January 28, 2021
    Applicants: GUARDIAN GLASS, LLC, GUARDIAN EUROPE S.A.R.L.
    Inventors: Vijayen S. VEERASAMY, Bernd DISTELDORF
  • Patent number: 10822270
    Abstract: Certain example embodiments relate to ultra-fast laser treatment of silver-inclusive (low-emissivity) low-E coatings, coated articles including such coatings, and/or associated methods. The low-E coating is formed on a substrate (e.g., borosilicate or soda lime silica glass), with the low-E coating including at least one sputter-deposited silver-based layer, and with each said silver-based layer being sandwiched between one or more dielectric layers. The low-E coating is exposed to laser pulses having a duration of no more than 10?12 seconds, a wavelength of 355-500 nm, and an energy density of more than 30 kW/cm2. The exposing is performed so as to avoid increasing temperature of the low-E coating to more than 300 degrees C. while also reducing (a) grain boundaries with respect to, and vacancies in, each said silver-based layer, (b) each said silver-based layer's refractive index, and (c) emissivity of the low-E coating compared to its as-deposited form.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: November 3, 2020
    Assignees: GUARDIAN GLASS, LLC, GUARDIAN EUROPE S.A.R.L.
    Inventors: Vijayen S. Veerasamy, Bernd Disteldorf
  • Patent number: 10801257
    Abstract: Certain example embodiments relate to a glazing assembly including a first glass substrate. A radiation shield covering, directly or indirectly, at least a part of a peripheral edge area of the first glass substrate. A dual junction solid-state heat flux sensor includes a first junction oriented in the assembly at a first location at which radiation from a radiation source is receivable through the first glass substrate; a second junction oriented in the assembly at a second location that is blocked from the radiation source by the radiation shield; and circuitry configured to generate a signal based on a differential between transduced voltages respectively generated at the first and second junctions. A control module may be configured to receive the signal and selectively generate an action responsive thereto.
    Type: Grant
    Filed: March 26, 2018
    Date of Patent: October 13, 2020
    Assignee: Guardian Glass, LLC
    Inventor: Vijayen S. Veerasamy
  • Patent number: 10683695
    Abstract: Certain example embodiments relate to vacuum insulating glass units having edge seals formed in connection with solder alloys that, when reactively reflowed, wet metallic coatings pre-coated on the glass substrates' perimeters, and/or associated methods. The alloys may be based on materials that form seals at temperatures that will not de-temper glass and/or decompose a laminate, and/or remain hermetic and lack porous structures in their bulks. Example alloys may be based on inter-metallics of Sn and one or more materials selected from post-transition metals or metalloids; Zintl anions (e.g., In, Bi, etc.) from Group 13, 14, 15, or 16; and transition metals (e.g., Cu, Ag, Ni, etc.); and excludes Pb. Thin film coatings in certain example embodiments work with the solder material to form robust and durable hermetic interfaces. Because low temperatures are used, certain example embodiments can use compliant and visco-elastic spacer technology based on lamellar structures and/or the like.
    Type: Grant
    Filed: June 29, 2018
    Date of Patent: June 16, 2020
    Assignee: GUARDIAN GLASS, LLC.
    Inventors: Vijayen S. Veerasamy, Patricia Tucker, Martin D. Bracamonte
  • Patent number: 10611679
    Abstract: Certain example embodiments of this invention relate to coated articles including noble metal (e.g., Ag) and polymeric hydrogenated diamond like carbon (DLC) (e.g., a-C:H, a-C:H:O) composite material having antibacterial and photocatalytic properties, and/or methods of making the same. A glass substrate supports a buffer layer, a matrix comprising the noble metal and DLC, a proton-conducting layer that may comprising zirconium oxide in certain example embodiments, and a layer comprising titanium oxide. The layer comprising titanium oxide may be photocatalytic and optionally may further include carbon and/or nitrogen. The proton-conducting layer may facilitate the creation of electron-hole pairs and, in turn, promote the antibacterial properties of the coated article. The morphology of the layer comprising titanium oxide and/or channels formed therein may enable Ag ions produced from matrix to migrate therethrough.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: April 7, 2020
    Assignee: GUARDIAN GLASS, LLC
    Inventor: Vijayen S. Veerasamy
  • Patent number: 10611678
    Abstract: In certain example embodiments, a coated article includes a carbon-doped zirconium based layer before heat treatment (HT). The coated article is heat treated sufficiently to cause the carbon-doped zirconium oxide and/or nitride based layer to result in a carbon-doped zirconium oxide based layer that is scratch resistant and/or chemically durable. The doping of the layer with carbon (C) has been found to improve wear resistance.
    Type: Grant
    Filed: November 4, 2016
    Date of Patent: April 7, 2020
    Assignees: GUARDIAN GLASS, LLC, GUARDIAN EUROPE S.A.R.L.
    Inventors: Jens-Peter Muller, Jean Vieira, Bernd Disteldorf, Allen Chu, Jijun Lao, Yiwei Lu, Vijayen S. Veerasamy
  • Publication number: 20200098150
    Abstract: Certain example embodiments relate to an electronic device, including a user interface, and processing resources including at least one processor and a memory. The memory stores a program executable by the processing resources to simulate a view of an image through at least one viewer-selected product that is virtually interposed between a viewer using the electronic device and the image by performing functionality including: acquiring the image; facilitating viewer selection of the at least one product in connection with the user interface; retrieving display properties associated with the at least one viewer-selected product; generating, for each said viewer-selected product, a filter to be applied to the acquired image based on retrieved display properties; and generating, for display via the electronic device, an output image corresponding to the generated filter(s) being applied to the acquired image. The electronic device in certain example embodiments may be a smartphone, tablet, and/or the like.
    Type: Application
    Filed: September 26, 2019
    Publication date: March 26, 2020
    Applicant: GUARDIAN GLASS, LLC
    Inventors: Alexander SOBOLEV, Vijayen S. VEERASAMY