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).

  • Patent number: 9371032
    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: July 6, 2012
    Date of Patent: June 21, 2016
    Assignee: Guardian Industries Corp.
    Inventor: Vijayen S. Veerasamy
  • Patent number: 9333728
    Abstract: Certain example embodiments of this invention relate to ruggedized switchable glazings, and/or methods of making the same. The PDLC stack of certain example embodiments includes an outer substrate, a low-E UV blocking coating deposited on an inner surface of the outer substrate, a first PVB or EVA laminate, a first PET layer, a first TCO layer, the PDLC layer, a second TCO layer, a second PET layer, a second PVB or EVA laminate, and an inner substrate. The substrates may be glass substrates. The low-E UV blocking coating may include at least two layers of or including silver and/or may include one or more IR layers. Thus, certain example embodiments may advantageously reduce one or more problems associated with residual haze, color change, flicker, structural changes in the polymer and/or the LC, degradations in state-switching response times, delamination, etc.
    Type: Grant
    Filed: February 20, 2008
    Date of Patent: May 10, 2016
    Assignee: Guardian Industries Corp.
    Inventor: Vijayen S. Veerasamy
  • Patent number: 9293653
    Abstract: Certain example embodiments of this invention relate to techniques for improving the performance of Lambertian and non-Lambertian light sources. In certain example embodiments, this is accomplished by (1) providing an organic-inorganic hybrid material on LEDs (which in certain example embodiments may be a high index of refraction material), (2) enhancing the light scattering ability of the LEDs (e.g., by fractal embossing, patterning, or the like, and/or by providing randomly dispersed elements thereon), and/or (3) improving performance through advanced cooling techniques. In certain example instances, performance enhancements may include, for example, better color production (e.g., in terms of a high CRI), better light production (e.g., in terms of lumens and non-Lambertian lighting), higher internal and/or external efficiency, etc.
    Type: Grant
    Filed: October 8, 2010
    Date of Patent: March 22, 2016
    Assignee: Guardian Industries Corp.
    Inventors: Vijayen S. Veerasamy, Jemssy Alvarez
  • Publication number: 20160065118
    Abstract: Certain examples relate to improved solar photovoltaic systems, and/or methods of making the same. Certain improved building-integrated photovoltaic systems may include concentrated photovoltaic skylights having a cylindrical lens array. The skylight may include an insulated glass unit, which may improve the solar heat gain coefficient. The photovoltaic skylight and lens arrays may be used in combination with strip solar cells and lateral displacement tracking systems. Such techniques may advantageously help to reduce cost per watt related, in part, to the potentially reduced amount of semiconductor material to be used for such example embodiments. A photovoltaic skylight may permit diffuse daylight to pass through into an interior of a building so as to provide lighting inside the building, while the strip solar cells absorb the direct sunlight and convert it to electricity.
    Type: Application
    Filed: September 9, 2015
    Publication date: March 3, 2016
    Inventors: Willem DEN BOER, Vijayen S. VEERASAMY
  • Patent number: 9263701
    Abstract: Certain example embodiments relate to light emitting diode (e.g., OLED and/or PLED) inclusive devices, and/or methods of making the same. Certain example embodiments incorporate an optical out-coupling layer stack (OCLS) structure that includes a vacuum deposited index matching layer (imL) provided over an organo-metallic scattering matrix layer. The imL may be a silicon-inclusive layer and may include, for example, vacuum deposited SiOxNy. The OCLS including scattering micro-particles, the imL, and the anode may be designed such that the device extraction efficiency is significantly improved, e.g., by efficiently coupling the light generated in the organic layers of the devices and extracted through the glass substrate. In certain example embodiments, the refractive index of the ITO, SiOxNy index matching layer, OCLS scattering layer and the glass substrate may be provided in decreasing order.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: February 16, 2016
    Assignee: Guardian Industries Corp.
    Inventors: Tukaram K. Hatwar, Willem Den Boer, Vijayen S. Veerasamy
  • Patent number: 9255029
    Abstract: A method for making a heat treated (HT) coated article including an electrode, to be used in applications such as windows, electronic devices, or other applications. The method may include heat treating a substrate coated with at least a transparent conductive oxide (TCO) layer and an overlying film. From the TCO outwardly, the overlying film may include any combination of two, three or four of: (i) a gettering and/or doping layer(s); (ii) a stabilizing layer(s); (iii) a release layer(s); and (iv) an oxygen blocking or barrier layer. After HT, the protective film may be entirely or partially removed. Other embodiments relate to the pre-HT coated article, or the post-HT coated article.
    Type: Grant
    Filed: April 17, 2012
    Date of Patent: February 9, 2016
    Assignee: Guardian Industries Corp.
    Inventor: Vijayen S. Veerasamy
  • Publication number: 20160027943
    Abstract: Improved building-integrated photovoltaic (BIPV) systems according to certain example embodiments may include concentrated photovoltaic skylights or other windows in which holographic optical elements (HOEs) are provided. The HOEs are formed on or in a substantially planar glass substrate, e.g., at light coupling locations, and they help form a holographic projection of light in a desired wavelength range on a photovoltaic module. The photovoltaic module may, for example, be connected to an outer edge of the substrate in certain example embodiments. Holographically projected light may propagate through the substrate in accordance with the principles of total internal reflection (TIR), which may be somewhat lossy in some cases. A lens provided between the light source (e.g., the sun) may help re-orient the light in a desired direction so as to improve the efficiency of the HOEs.
    Type: Application
    Filed: July 25, 2014
    Publication date: January 28, 2016
    Inventors: Martin D. BRACAMONTE, Vijayen S. VEERASAMY
  • Publication number: 20150300077
    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: Application
    Filed: July 1, 2015
    Publication date: October 22, 2015
    Inventors: Vijayen S. VEERASAMY, Patricia TUCKER, Martin D. BRACAMONTE
  • Patent number: 9151879
    Abstract: Certain examples relate to improved solar photovoltaic systems, and/or methods of making the same. Certain improved building-integrated photovoltaic systems may include concentrated photovoltaic skylights having a cylindrical lens array. The skylight may include an insulated glass unit, which may improve the solar heat gain coefficient. The photovoltaic skylight and lens arrays may be used in combination with strip solar cells and lateral displacement tracking systems. Such techniques may advantageously help to reduce cost per watt related, in part, to the potentially reduced amount of semiconductor material to be used for such example embodiments. A photovoltaic skylight may permit diffuse daylight to pass through into an interior of a building so as to provide lighting inside the building, while the strip solar cells absorb the direct sunlight and convert it to electricity.
    Type: Grant
    Filed: May 22, 2012
    Date of Patent: October 6, 2015
    Assignee: Guardian Industries Corp.
    Inventors: Willem Den Boer, Vijayen S. Veerasamy
  • Patent number: 9140950
    Abstract: Certain example embodiments of this invention relate to electrochromic (EC) devices, assemblies incorporating electrochromic devices, and/or methods of making the same. More particularly, certain example embodiments of this invention relate to improved EC materials, EC device stacks, high-volume manufacturing (HVM) compatible process integration schemes, and/or high-throughput low cost deposition sources, equipment, and factories.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: September 22, 2015
    Assignee: Guardian Industries Corp.
    Inventor: Vijayen S. Veerasamy
  • Publication number: 20150246844
    Abstract: A method of making a heat treated (HT) substantially transparent coated article to be used in shower door applications, window applications, tabletop applications, or any other suitable applications. For example, certain embodiments relate to a method of making a coated article including a step of heat treating a glass substrate coated with at least layer of or including carbon (e.g., diamond-like carbon (DLC)) and an overlying protective film thereon. The protective film may be of or include both (a) an oxygen blocking or barrier layer, and (b) a release layer, with the release layer being located between at least the carbon based layer and the oxygen blocking layer. The release layer is of or includes zinc oxynitride (e.g., ZnOxNz). Following and/or during heat treatment (e.g., thermal tempering, or the like) the protective film may be entirely or partially removed. Other embodiments of this invention relate to the pre-HT coated article, or the post-HT coated article.
    Type: Application
    Filed: May 18, 2015
    Publication date: September 3, 2015
    Inventors: Jens-Peter MULLER, Vijayen S. VEERASAMY
  • Publication number: 20150184446
    Abstract: Certain example embodiments relate to vacuum insulating glass units having edge seals based on 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 a seal 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 additional 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: Application
    Filed: December 31, 2013
    Publication date: July 2, 2015
    Applicant: Guardian Industries Corp.
    Inventors: Vijayen S. VEERASAMY, Martin D. BRACAMONTE
  • Patent number: 9051214
    Abstract: Certain example embodiments relate to an improved method of strengthening glass substrates (e.g., soda lime silica glass substrates). In certain examples, a glass substrate may be chemically strengthened by creating an electric field within the glass. In certain cases, the chemical tempering may be performed by surrounding the substrate by a plasma including certain ions, such as Li+, K+, Mg2+, and/or the like. In some cases, these ions may be forced into the glass substrate due to the half-cycles of the electric field generated by the electrodes that formed the plasma. This may advantageously chemically strengthen a glass substrate on a substantially reduced time scale. In other example embodiments, an electric field may be set in a float bath such that sodium ions are driven from the molten glass ribbon into the tin bath, which may advantageously result in a stronger glass substrate with reduced sodium content.
    Type: Grant
    Filed: September 2, 2011
    Date of Patent: June 9, 2015
    Assignee: Guardian Industries Corp.
    Inventors: Vijayen S. Veerasamy, Xuequn Hu, Glenn A. Cerny
  • Patent number: 9038419
    Abstract: A method of making a heat treated (HT) substantially transparent coated article to be used in shower door applications, window applications, tabletop applications, or any other suitable applications. Certain embodiments relate to a method of making a coated article including heat treating a glass substrate coated with at least layer of or including carbon (e.g., diamond-like carbon (DLC)) and an overlying protective film thereon. The protective film may be of or include both (a) an oxygen blocking or barrier layer, and (b) a release layer of or including zinc oxynitride (e.g., ZnOxNz). Following and/or during heat treatment (e.g., thermal tempering, or the like) the protective film may be entirely or partially removed.
    Type: Grant
    Filed: June 8, 2012
    Date of Patent: May 26, 2015
    Assignees: Centre Luxembourgeois de Recherches Pour le Verre et la Ceramique S.A. (C.R.V.C.), Guardian Industries Corp.
    Inventors: Jens-Peter Müller, Vijayen S. Veerasamy
  • Patent number: 8992045
    Abstract: Certain example embodiments relate to improved lighting systems and/or methods of making the same. In certain example embodiments, a lighting system includes a glass substrate with one or more apertures. An LED or other light source is disposed at one end of the aperture such that light from the LED directed through the aperture of the glass substrate exits the opposite end of the aperture. Inner surfaces of the aperture have a mirroring material such as silver to reflect the emitted light from the LED. In certain example embodiments, a remote phosphor article or layer is disposed opposite the LED at the other end of the aperture. In certain example embodiment, a lens is disposed in the aperture, between the remote phosphor article and the LED.
    Type: Grant
    Filed: July 22, 2011
    Date of Patent: March 31, 2015
    Assignee: Guardian Industries Corp.
    Inventors: Vijayen S. Veerasamy, Jemssy Alvarez
  • Patent number: 8946062
    Abstract: A method of manufacturing a polycrystalline silicon film includes: depositing a catalyst layer including nickel and depositing nickel nanoparticles on a substrate; exposing the catalyst layer and the nanoparticles to at least silane gas; and heat treating the substrate coated with the catalyst layer and the nanoparticles during at least part of the exposing to silane gas in growing a silicon based film on the substrate.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: February 3, 2015
    Assignee: Guardian Industries Corp.
    Inventors: Vijayen S. Veerasamy, Martin D. Bracamonte
  • Patent number: 8917014
    Abstract: Certain example embodiments relate to organic light emitting diode (OLED) inclusive devices, and/or methods of making the same. A substrate supports a transparent conductive coating (TCC) based layer, and first and second organic layers disposed thereon. A reflective conductive layer is supported by the organic layers. An out-coupling layer stack (OCLS) interposed between the organic layers and a viewer of the device includes a hybrid organic-inorganic polymer matrix having scatterers dispersed throughout in a manner such that each scatterer is located in the far field of its nearest neighbor. The scatterers are dispersed to have a high Zeta potential, and promote Mie-like scattering of light passing through the OCLS. Mie-like scattering caused by the OCLS may help to frustrate the wave-guiding modes in the glass, e.g., by breaking down the in-phase coherence.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: December 23, 2014
    Assignee: Guardian Industries Corp.
    Inventor: Vijayen S. Veerasamy
  • Patent number: 8900679
    Abstract: In certain example embodiments of this invention, a window unit may include a vacuum IG (VIG) unit as an inboard lite and a monolithic lite (e.g., with an optional low-E coating thereon) as an outboard lite. A dead air space may separate the inboard and outboard lites. A highly insulated frame may be used to support the inner and outer lites. The VIG unit may be partially embedded or supported in the insulative frame, so that the insulating frame separates the VIG unit inboard lite from the outboard lite thereby reducing conductivity around the edges of the window unit so that R-value can be increased (and U-value decreased). In certain example embodiments, the total R-value of the window unit is at least about R-8, and more preferably at least about R-10 (compared to the much lower R-values of conventional IG units).
    Type: Grant
    Filed: January 16, 2013
    Date of Patent: December 2, 2014
    Assignee: Guardian Industries Corp.
    Inventors: Jason E. Theios, Vijayen S. Veerasamy
  • Patent number: 8877548
    Abstract: Certain example embodiments relate to organic light emitting diode (OLED)/polymer light emitting diode (PLED) devices, and/or methods of making the same. A first transparent conductive coating (TCC) layer is disposed, directly or indirectly, on a glass substrate. An outermost major surface of the TCC layer is planarized by exposing the outermost major surface thereof to an ion beam. Following said planarizing, the first TCC layer has an arithmetic mean value RMS roughness (Ra) of less than 1.5 nm. A hole transporting layer (HTL) and an electron transporting and emitting layer (ETL) are disposed, directly or indirectly, on the planarized outermost major surface of the first TCC layer. A second TCC layer is disposed, directly or indirectly, on the HTL and the ETL. One or both TCC layers may include ITO. The substrate and/or an optional optical out-coupling layer stack system may be planarized using an ion beam.
    Type: Grant
    Filed: July 3, 2013
    Date of Patent: November 4, 2014
    Assignees: Guardian Industries Corp., Centre Luxembourgeois de Recherches pour le Verre et la Ceramique S.A. (C.R.V.C.)
    Inventors: Vijayen S. Veerasamy, Jens-Peter Muller, Tukaram K. Hatwar
  • Publication number: 20140308523
    Abstract: Certain example embodiments of this invention relate to methods for large area graphene precipitation onto glass, and associated articles/devices. For example, a coated article including a graphene-inclusive film on a substrate, and/or a method of making the same, is provided. A metal-inclusive catalyst layer (e.g., of or including Ni and/or the like) is disposed on the substrate. The substrate with the catalyst layer thereon is exposed to a precursor gas and a strain-inducing gas at a temperature of no more than 900 degrees C. Graphene is formed and/or allowed to form both over and contacting the catalyst layer, and between the substrate and the catalyst layer, in making the coated article. The catalyst layer, together with graphene formed thereon, is removed, e.g., through excessive strain introduced into the catalyst layer as associated with the graphene formation. Products including such articles, and/or methods of making the same, also are contemplated herein.
    Type: Application
    Filed: December 31, 2013
    Publication date: October 16, 2014
    Inventors: Vijayen S. VEERASAMY, Anastasios John HART, Daniel Quinn MCNERNY