Patents by Inventor Nikhil Kalyankar

Nikhil Kalyankar 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: 9423532
    Abstract: Embodiments provided herein describe coating formulations, such as those used to form optical coatings, panels having optical coatings thereon, and methods for forming optical coatings and panels. The coating formulation includes an aqueous-based suspension of particles. The particles have a sheet-like morphology and a thickness of less than about 10 nm. The coating also includes a polysiloxane or silane emulsion, a polysiloxane or silane solution, or a combination thereof.
    Type: Grant
    Filed: August 22, 2013
    Date of Patent: August 23, 2016
    Assignee: Intermolecular, Inc.
    Inventors: Scott Jewhurst, Nikhil Kalyankar
  • Patent number: 9341751
    Abstract: Embodiments provided herein describe antireflective coatings and methods for forming antireflective coatings. A substrate is provided. A first antireflective layer is formed over the substrate. The first antireflective layer has a first refractive index. A second antireflective layer is formed on the first antireflective layer. The second antireflective layer has a second refractive index. The first antireflective layer and the second antireflective layer jointly form an antireflective coating. The antireflective coating is graded such that the antireflective coating comprises at least three sub-layers, each of the at least three sub-layers having a unique refractive index.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: May 17, 2016
    Assignee: Intermolecular, Inc.
    Inventors: Nikhil Kalyankar, Richard Blacker, Minh Huu Le, Mark Lewis, Liang Liang
  • Patent number: 9221976
    Abstract: Coated article having antireflective property together with self cleaning, moisture resistance and antimicrobial properties can be prepared with a topmost layer of titanium oxide on an antireflective layer, which can be formed by a sol-gel process. The antireflective layer can comprise a porosity forming agent, or an alkyltrialkoxysilane-based binder. The antireflective coating can comprise silica and titania components, with pores to achieve low index of refraction and titania to achieve self-cleaning and antimicrobial properties.
    Type: Grant
    Filed: October 8, 2014
    Date of Patent: December 29, 2015
    Assignee: Intermolecular, Inc.
    Inventor: Nikhil Kalyankar
  • Patent number: 9099582
    Abstract: The present disclosure includes a texture formulation that includes an aliphatic diol, an alkaline compound and water which provides a consistent textured region across a silicon surface suitable for solar cell applications. The current invention describes silicon texturing formulations that include at least one high boiling point additive. The high boiling point additive may be a derivative compound of propylene glycol or a derivative compound of ethylene glycol. Processes for texturing a crystalline silicon substrate using these formulations are also described. Additionally, a combinatorial method of optimizing the textured surface of a crystalline silicon substrate is described.
    Type: Grant
    Filed: April 25, 2014
    Date of Patent: August 4, 2015
    Assignee: Intermolecular, Inc.
    Inventors: Zhi-Wen Sun, Nikhil Kalyankar, Nitin Kumar, Minh Anh Nguyen, Sagar Vijay
  • Publication number: 20150166795
    Abstract: Embodiments provided herein describe optical coatings, panels having optical coatings thereon, and methods for forming optical coatings and panels. A substrate is provided. A coating is formed above the substrate. The coating includes a plurality of micro-particles including a UV-absorbing material and has a surfaces roughness suitable to provide the coating with anti-glare properties.
    Type: Application
    Filed: December 17, 2013
    Publication date: June 18, 2015
    Applicant: Intermolecular Inc.
    Inventors: Nikhil Kalyankar, Scott Jewhurst, Liang Liang, James Mulligan
  • Patent number: 8974066
    Abstract: Embodiments provided herein describe optical coatings, panels having optical coatings thereon, and methods for forming optical coatings and panels. A transparent substrate is provided. An optical coating is formed on the transparent substrate. The optical coating includes a plurality of plate-shaped silicon dioxide particles.
    Type: Grant
    Filed: March 14, 2013
    Date of Patent: March 10, 2015
    Assignees: Intermolecular, Inc., Guardian Industries Corp.
    Inventors: Nikhil Kalyankar, Richard Blacker, Scott Jewhurst, James Mulligan
  • Publication number: 20150024182
    Abstract: Coated article having antireflective property together with self cleaning, moisture resistance and antimicrobial properties can be prepared with a topmost layer of titanium oxide on an antireflective layer, which can be formed by a sol-gel process. The antireflective layer can comprise a porosity forming agent, or an alkyltrialkoxysilane-based binder. The antireflective coating can comprise silica and titania components, with pores to achieve low index of refraction and titania to achieve self-cleaning and antimicrobial properties.
    Type: Application
    Filed: October 8, 2014
    Publication date: January 22, 2015
    Inventor: Nikhil Kalyankar
  • Publication number: 20140268349
    Abstract: Embodiments provided herein describe optical coatings, panels having optical coatings thereon, and methods for forming optical coatings and panels. A transparent substrate is provided. An optical coating is formed on the transparent substrate. The optical coating includes a plurality of plate-shaped silicon dioxide particles.
    Type: Application
    Filed: March 14, 2013
    Publication date: September 18, 2014
    Applicants: Guardian Industries Corp., INTERMOLECULAR INC.
    Inventors: Nikhil Kalyankar, Richard Blacker, Scott Jewhurst, James Mulligan
  • Publication number: 20140272387
    Abstract: Embodiments provided herein describe optical coatings, panels having optical coatings thereon, and methods for forming optical coatings and panels. A substrate is provided. A coating formulation is applied to the substrate. The coating formulation includes an aqueous-based suspension of particles. The particles have a sheet-like morphology and a thickness of less than about 100 nanometers (nm). The coating formulation is cured to form an anti-glare coating above the substrate. The anti-glare coating has a thickness of between 1 micrometer (?m) and 100 ?m.
    Type: Application
    Filed: October 2, 2013
    Publication date: September 18, 2014
    Applicant: Intermolecular Inc.
    Inventors: Scott Jewhurst, Nikhil Kalyankar
  • Publication number: 20140272384
    Abstract: Embodiments provided herein describe coating formulations, such as those used to form optical coatings, panels having optical coatings thereon, and methods for forming optical coatings and panels. The coating formulation includes an aqueous-based suspension of particles. The particles have a sheet-like morphology and a thickness of less than about 10 nm. The coating also includes a polysiloxane or silane emulsion, a polysiloxane or silane solution, or a combination thereof.
    Type: Application
    Filed: August 22, 2013
    Publication date: September 18, 2014
    Applicant: Intermolecular Inc.
    Inventors: Scott Jewhurst, Nikhil Kalyankar
  • Publication number: 20140272127
    Abstract: Embodiments provided herein describe optical coatings, panels having optical coatings thereon, and methods for forming optical coatings and panels. A sol-gel matrix is formed above a surface of a substrate. Organic micro-particles are embedded in a surface of the sol-gel matrix. A heat treatment is applied to the sol-gel matrix and the embedded plurality of organic micro-particles. Substantially all of the organic micro-particles are removed during the heat treatment, and after the heat treatment, the sol-gel matrix has a surface roughness suitable to provide anti-glare properties.
    Type: Application
    Filed: October 28, 2013
    Publication date: September 18, 2014
    Applicant: Intermolecular Inc.
    Inventors: Nikhil Kalyankar, Scott Jewhurst
  • Publication number: 20140268348
    Abstract: Embodiments provided herein provide anti-reflective coatings with porosity gradients and methods for forming such anti-reflective coatings. A transparent substrate is provided. A primary material and a sacrificial material are simultaneously deposited above the transparent substrate to form a coating above the transparent substrate. At least some of the sacrificial material is removed from the coating to form a plurality of pores in the coating.
    Type: Application
    Filed: March 13, 2013
    Publication date: September 18, 2014
    Applicant: INTERMOLECULAR INC.
    Inventors: Scott Jewhurst, Nikhil Kalyankar
  • Publication number: 20140272290
    Abstract: Embodiments provided herein describe anti-glare coatings and panels and methods for forming anti-glare coatings and panels. A transparent substrate is provided. A polymer is sputtered onto the transparent substrate to form an anti-glare coating on the transparent substrate.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: INTERMOLECULAR INC.
    Inventors: Scott Jewhurst, Nikhil Kalyankar, Minh Huu Le
  • Publication number: 20140231704
    Abstract: The present disclosure includes a texture formulation that includes an aliphatic diol, an alkaline compound and water which provides a consistent textured region across a silicon surface suitable for solar cell applications. The current invention describes silicon texturing formulations that include at least one high boiling point additive. The high boiling point additive may be a derivative compound of propylene glycol or a derivative compound of ethylene glycol. Processes for texturing a crystalline silicon substrate using these formulations are also described. Additionally, a combinatorial method of optimizing the textured surface of a crystalline silicon substrate is described.
    Type: Application
    Filed: April 25, 2014
    Publication date: August 21, 2014
    Applicant: Intermolecular, Inc.
    Inventors: Zhi-Wen Sun, Nikhil Kalyankar, Nitin Kumar, Minh Anh Nguyen, Sagar Vijay
  • Publication number: 20140182670
    Abstract: Light trapping and antireflection coatings are described, together with methods for preparing the coatings. An exemplary method comprises forming a light trapping coating on a substrate and a conformal antireflection coating on the light trapping coating. The light trapping coating comprises particles embedded in a support matrix having a thickness between about one third and two thirds of the mean particle size. The mean particle size is between about 10 ?m and about 500 ?m. The index of refraction of the particles and support matrix is substantially the same as the index of refraction of the substrate at wavelengths of interest. The index of refraction of the conformal antireflection coating is approximately equal the square root of the index of refraction of the substrate.
    Type: Application
    Filed: December 27, 2012
    Publication date: July 3, 2014
    Applicant: INTERMOLECULAR INC.
    Inventors: Jeroen Van Duren, Scott Jewhurst, Nikhil Kalyankar
  • Publication number: 20140178657
    Abstract: Fluorine-doped antireflection coatings, methods for preparing the coatings and articles comprising the coatings are disclosed. The fluorine-doped antireflection coating comprises a fluorine-doped xerogel coating disposed on a substrate. The index of refraction of the xerogel coating is less than the index of refraction of the substrate, generally between about 1.15 and about 1.45. The fluorine atoms can be distributed uniformly through the thickness of the coating, disposed at the surface of the coating, or the distribution can be graded from the surface through the thickness of the coating. The methods comprise applying a coating precursor solution comprising a sol-gel precursor to a glass substrate, heating the coating to form a xerogel coating, and fluorine-doping the coating. The fluorine-doping can be performed by utilizing a coating precursor solution comprising a first fluorine source, contacting the cured coating with a second fluorine source, or a combination thereof.
    Type: Application
    Filed: December 21, 2012
    Publication date: June 26, 2014
    Applicant: INTERMOLECULAR INC.
    Inventors: Scott Jewhurst, Nikhil Kalyankar
  • Publication number: 20140170308
    Abstract: Embodiments provided herein describe antireflective coatings and methods for forming antireflective coatings. A substrate is provided. A first antireflective layer is formed over the substrate. The first antireflective layer has a first refractive index. A second antireflective layer is formed on the first antireflective layer. The second antireflective layer has a second refractive index. The first antireflective layer and the second antireflective layer jointly form an antireflective coating. The antireflective coating is graded such that the antireflective coating comprises at least three sub-layers, each of the at least three sub-layers having a unique refractive index.
    Type: Application
    Filed: December 13, 2012
    Publication date: June 19, 2014
    Applicant: INTERMOLECULAR INC.
    Inventors: Nikhil Kalyankar, Richard Blacker, Minh Huu Le, Mark Lewis, Liang Liang
  • Publication number: 20140161989
    Abstract: Methods for forming anti-glare coatings including forming a layer using a sol-gel process are described. The layer further includes at least one of porogens, nanoparticles, or photosensitive macromolecules. The porogens, nanoparticles, or photosensitive macromolecules are removed using a thermal treatment or UV treatment to impart porosity and surface roughness to the layer. Alternatively, the layer may be roughened using a mechanical process. The layer can optionally be subjected to a curing step. The curing step may be a thermal curing process or a chemical curing process.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Applicant: INTERMOLECULAR, INC.
    Inventors: Nikhil Kalyankar, Scott Jewhurst, Minh Huu Le
  • Publication number: 20140161990
    Abstract: Methods for depositing layers by PVD, wherein the PVD process parameters are selected to impart porosity in the layer are described. The porous layers are then exposed to a vapor or liquid binder material to fill the pores and increase the mechanical strength of the layer and the adhesion of the layer. Optionally, a curing step may be applied to the layer. Methods for depositing polycrystalline metal oxide layers using PVD or CVD are described. Optionally, the layers are exposed to an anneal step. The polycrystalline metal oxide layers are then exposed to a vapor or liquid texturing reagent to texture the surface of the layer.
    Type: Application
    Filed: December 12, 2012
    Publication date: June 12, 2014
    Applicant: INTERMOLECULAR, INC.
    Inventors: Nikhil Kalyankar, Scott Jewhurst, Minh Huu Le
  • Publication number: 20140147594
    Abstract: Chemical solution deposition process can be used to deposit porous coatings containing magnesium fluoride and/or magnesium oxyfluoride. The chemical solution deposition process can utilize a solution containing a magnesium precursor, a fluorine precursor, together with a surfactant porogen. The surfactant porogen can improve the wettability of the coated layers, together with increase the control of the porosity level and morphology of the coated layers.
    Type: Application
    Filed: November 27, 2012
    Publication date: May 29, 2014
    Applicant: Intermolecular Inc.
    Inventors: Scott Jewhurst, Nikhil Kalyankar