Patents by Inventor Anubhav Diwan

Anubhav Diwan 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: 20230375766
    Abstract: A method of making a polarizer can include applying a liquid with solid inorganic nanoparticles dispersed throughout a continuous phase, then forming this into a different phase including a solid, interconnecting network of the inorganic nanoparticles. This method can improve manufacturability and reducing manufacturing cost. This method can be used to provide an antireflective coating, to provide a protective coating on polarization structures, to provide thin films for optical properties, or to form the polarization structures themselves.
    Type: Application
    Filed: July 31, 2023
    Publication date: November 23, 2023
    Inventors: Bradley R. WILLIAMS, R. Stewart NIELSON, Anubhav DIWAN, Eric GARDNER, Shaun Patrick OGDEN, Bob WEST
  • Patent number: 11822182
    Abstract: A method of vapor depositing a silane chemical onto a wire grid polarizer can include introducing a silane chemical and water into a chamber where the wire grid polarizer is located. The silane chemical and the water can be in a gaseous phase in the chamber. The silane chemical and the water can be maintained simultaneously in the gaseous phase in the chamber for period of time. The silane chemical and the water can react to form a (R1)2Si(OH)2 molecule, where each R1 is independently any chemical element or group. A silane coating can be formed on the wire grid polarizer from a chemical reaction of the (R1)2Si(OH)2 molecule with the wire grid polarizer and with other (R1)2Si(OH)2 molecules. The silane coating can be relatively thick and multi-layer. A thicker or multi-layer silane coating can have improved high temperature resistance relative to a thinner or mono-layer silane coating.
    Type: Grant
    Filed: July 20, 2020
    Date of Patent: November 21, 2023
    Assignee: Moxtek, Inc.
    Inventors: Anubhav Diwan, Matt Linford
  • Patent number: 11754765
    Abstract: A method of making a polarizer can include applying a liquid with solid inorganic nanoparticles dispersed throughout a continuous phase, then forming this into a different phase including a solid, interconnecting network of the inorganic nanoparticles. This method can improve manufacturability and reducing manufacturing cost. This method can be used to provide an antireflective coating, to provide a protective coating on polarization structures, to provide thin films for optical properties, or to form the polarization structures themselves.
    Type: Grant
    Filed: June 28, 2021
    Date of Patent: September 12, 2023
    Assignee: Moxtek, Inc.
    Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
  • Patent number: 11746418
    Abstract: Thick, inorganic coatings can be deposited on a polarizer by chemical vapor deposition. In one embodiment, the method can comprise activating a surface of the polarizer with an oxygen plasma in an oven; injecting a solution including tetrakis(dimethylamino)silane dissolved in cyclohexane and water into the oven; and vapor depositing silicon dioxide onto the polarizer. These three steps can be repeated multiple times until desired thickness is attained.
    Type: Grant
    Filed: November 5, 2019
    Date of Patent: September 5, 2023
    Assignee: Moxtek, Inc.
    Inventors: Matthew R. Linford, Brian Johnson, Anubhav Diwan
  • Patent number: 11555953
    Abstract: An optical device can comprise wires 12 on a face of a substrate 11, with channel(s) 13 between adjacent wires 12. Each wire 12 can include embedded organic moieties. Each wire 12 can include multiple ribs 31. Part or all of the wire 12, the substrate 11, or both can have a high refractive index n and a low extinction coefficient k. The optical device can have reduced separation of layers of different materials during flexing and temperature changes. The optical device can be manufactured by a method designed for improved manufacturability.
    Type: Grant
    Filed: August 13, 2020
    Date of Patent: January 17, 2023
    Assignee: Moxtek, Inc.
    Inventors: Anubhav Diwan, Bradley R. Williams, R. Stewart Nielson
  • Patent number: 11513272
    Abstract: A wire grid polarizer (WGP) can have a conformal-coating to protect the WGP from at least one of the following: corrosion, dust, and damage due to tensile forces in a liquid on the WGP. The conformal-coating can include a silane conformal-coating with chemical formula (1), chemical formula (2), or combinations thereof: A method of applying a conformal-coating over a WGP can include exposing the WGP to Si(R1)d(R2)e(R3)g. In the above WGP and method, X can be a bond to the ribs; each R1 can be a hydrophobic group; each R3, if any, can be any chemical element or group; d can be 1, 2, or 3, e can be 1, 2, or 3, g can be 0, 1, or 2, and d+e+g=4; R2 can be a silane-reactive-group; and each R6 can be an alkyl group, an aryl group, or combinations thereof.
    Type: Grant
    Filed: July 28, 2020
    Date of Patent: November 29, 2022
    Assignee: Moxtek, Inc.
    Inventors: Stew Nielson, Matt Linford, Anubhav Diwan, Matthew C. George
  • Publication number: 20210325589
    Abstract: A method of making a polarizer can include applying a liquid with solid inorganic nanoparticles dispersed throughout a continuous phase, then forming this into a different phase including a solid, interconnecting network of the inorganic nanoparticles. This method can improve manufacturability and reducing manufacturing cost. This method can be used to provide an antireflective coating, to provide a protective coating on polarization structures, to provide thin films for optical properties, or to form the polarization structures themselves.
    Type: Application
    Filed: June 28, 2021
    Publication date: October 21, 2021
    Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
  • Patent number: 11079528
    Abstract: A method of making a polarizer can include applying a liquid with solid inorganic nanoparticles dispersed throughout a continuous phase, then forming this into a different phase including a solid, interconnecting network of the inorganic nanoparticles. This method can improve manufacturability and reducing manufacturing cost. This method can be used to provide an antireflective coating, to provide a protective coating on polarization structures, to provide thin films for optical properties, or to form the polarization structures themselves.
    Type: Grant
    Filed: March 27, 2019
    Date of Patent: August 3, 2021
    Assignee: Moxtek, Inc.
    Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
  • Patent number: 10969307
    Abstract: An extractive system, such as SPME, has an adsorptive phase in the form of a porous coating that has essentially vertical, mutually supporting, columnar structures with nanospaces at the boundaries of the grains.
    Type: Grant
    Filed: July 23, 2019
    Date of Patent: April 6, 2021
    Assignee: Moxtek, Inc.
    Inventors: Matthew R. Linford, Anubhav Diwan, Bhupinder Singh
  • Publication number: 20210063623
    Abstract: An optical device can comprise wires 12 on a face of a substrate 11, with channel(s) 13 between adjacent wires 12. Each wire 12 can include embedded organic moieties. Each wire 12 can include multiple ribs 31. Part or all of the wire 12, the substrate 11, or both can have a high refractive index n and a low extinction coefficient k. The optical device can have reduced separation of layers of different materials during flexing and temperature changes. The optical device can be manufactured by a method designed for improved manufacturability.
    Type: Application
    Filed: August 13, 2020
    Publication date: March 4, 2021
    Inventors: Anubhav Diwan, Bradley R. Williams, R. Stewart Nielson
  • Publication number: 20200363577
    Abstract: A wire grid polarizer (WGP) can have a conformal-coating to protect the WGP from at least one of the following: corrosion, dust, and damage due to tensile forces in a liquid on the WGP. The conformal-coating can include a silane conformal-coating with chemical formula (1), chemical formula (2), or combinations thereof: A method of applying a conformal-coating over a WGP can include exposing the WGP to Si(R1)a(R2)e(R3)g. In the above WGP and method, X can be a bond to the ribs; each R1 can be a hydrophobic group; each R3, if any, can be any chemical element or group; d can be 1, 2, or 3, e can be 1, 2, or 3, g can be 0, 1, or 2, and d+e+g=4; R2 can be a silane-reactive-group; and each R6 can be an alkyl group, an aryl group, or combinations thereof.
    Type: Application
    Filed: July 28, 2020
    Publication date: November 19, 2020
    Inventors: Stew Nielson, Matt Linford, Anubhav Diwan, Matthew C. George
  • Publication number: 20200347495
    Abstract: A method of vapor depositing a silane chemical onto a wire grid polarizer can include introducing a silane chemical and water into a chamber where the wire grid polarizer is located. The silane chemical and the water can be in a gaseous phase in the chamber. The silane chemical and the water can be maintained simultaneously in the gaseous phase in the chamber for period of time. The silane chemical and the water can react to form a (R1)2Si(OH)2 molecule, where each R1 is independently any chemical element or group. A silane coating can be formed on the wire grid polarizer from a chemical reaction of the (R1)2Si(OH)2 molecule with the wire grid polarizer and with other (R1)2Si(OH)2 molecules. The silane coating can be relatively thick and multi-layer. A thicker or multi-layer silane coating can have improved high temperature resistance relative to a thinner or mono-layer silane coating.
    Type: Application
    Filed: July 20, 2020
    Publication date: November 5, 2020
    Inventors: Anubhav Diwan, Matt Linford
  • Patent number: 10761252
    Abstract: A wire grid polarizer (WGP) can have a conformal-coating to protect the WGP from at least one of the following: corrosion, dust, and damage due to tensile forces in a liquid on the WGP. The conformal-coating can include a silane conformal-coating with chemical formula (1), chemical formula (2), or combinations thereof: A method of applying a conformal-coating over a WGP can include exposing the WGP to Si(R1)d(R2)e(R3)g. In the above WGP and method, X can be a bond to the ribs; each R1 can be a hydrophobic group; each R3, if any, can be any chemical element or group; d can be 1, 2, or 3, e can be 1, 2, or 3, g can be 0, 1, or 2, and d+e+g=4; R2 can be a silane-reactive-group; and each R6 can be an alkyl group, an aryl group, or combinations thereof.
    Type: Grant
    Filed: May 14, 2018
    Date of Patent: September 1, 2020
    Assignee: Moxtek, Inc.
    Inventors: Stew Nielson, Matt Linford, Anubhav Diwan, Matthew C. George
  • Patent number: 10752989
    Abstract: A method of vapor depositing a silane chemical onto a wire grid polarizer can include introducing a silane chemical and water into a chamber where the wire grid polarizer is located. The silane chemical and the water can be in a gaseous phase in the chamber. The silane chemical and the water can be maintained simultaneously in the gaseous phase in the chamber for period of time. The silane chemical and the water can react to form a (R1)2Si(OH)2 molecule, where each R1 is independently any chemical element or group. A silane coating can be formed on the wire grid polarizer from a chemical reaction of the (R1)2Si(OH)2 molecule with the wire grid polarizer and with other (R1)2Si(OH)2 molecules. The silane coating can be relatively thick and multi-layer. A thicker or multi-layer silane coating can have improved high temperature resistance relative to a thinner or mono-layer silane coating.
    Type: Grant
    Filed: July 5, 2018
    Date of Patent: August 25, 2020
    Assignee: Moxtek, Inc.
    Inventors: Anubhav Diwan, Matt Linford
  • Publication number: 20200173021
    Abstract: Thick, inorganic coatings can be deposited on a polarizer by chemical vapor deposition. In one embodiment, the method can comprise activating a surface of the polarizer with an oxygen plasma in an oven; injecting a solution including tetrakis(dimethylamino)silane dissolved in cyclohexane and water into the oven; and vapor depositing silicon dioxide onto the polarizer. These three steps can be repeated multiple times until desired thickness is attained.
    Type: Application
    Filed: November 5, 2019
    Publication date: June 4, 2020
    Inventors: Matthew R. Linford, Brian Johnson, Anubhav Diwan
  • Patent number: 10534120
    Abstract: A wire grid polarizer and method of making a wire grid polarizer can protect delicate wires of the wire grid polarizer from damage. The wire grid polarizer can include a protective-layer located on an array of wires. The array of wires can further be protected by a chemical coating on an inside surface of the air-filled channels, closed ends of the air-filled channels, damaged wires of the array of wires in a line parallel to an edge of the wire grid polarizer, or combinations thereof. The method can include (i) providing the wire grid polarizer, (ii) applying the protective-layer, by physical vapor deposition or chemical vapor deposition but excluding atomic layer deposition, onto the array of wires, (iii) cutting the wire grid polarizer wafer into multiple wire grid polarizer parts, then (iv) protecting the array of wires.
    Type: Grant
    Filed: June 23, 2017
    Date of Patent: January 14, 2020
    Assignee: Moxtek, Inc.
    Inventors: R. Stewart Nielson, Mathew Free, Bradley R. Williams, Matthew R. Linford, Anubhav Diwan, Fred Lane, Shaun Ogden
  • Publication number: 20190346346
    Abstract: An extractive system, such as SPME, has an adsorptive phase in the form of a porous coating that has essentially vertical, mutually supporting, columnar structures with nanospaces at the boundaries of the grains.
    Type: Application
    Filed: July 23, 2019
    Publication date: November 14, 2019
    Inventors: Matthew R. Linford, Anubhav Diwan, Bhupinder Singh
  • Publication number: 20190317260
    Abstract: A method of making a polarizer can include applying a liquid with solid inorganic nanoparticles dispersed throughout a continuous phase, then forming this into a different phase including a solid, interconnecting network of the inorganic nanoparticles. This method can improve manufacturability and reducing manufacturing cost. This method can be used to provide an antireflective coating, to provide a protective coating on polarization structures, to provide thin films for optical properties, or to form the polarization structures themselves.
    Type: Application
    Filed: March 27, 2019
    Publication date: October 17, 2019
    Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
  • Patent number: 10422725
    Abstract: An extractive system, such as SPME, has an adsorptive phase in the form of a porous coating that has essentially vertical, mutually supporting, columnar structures with nanospaces at the boundaries of the grains.
    Type: Grant
    Filed: February 28, 2018
    Date of Patent: September 24, 2019
    Assignee: Moxtek, Inc.
    Inventors: Matthew R. Linford, Anubhav Diwan, Bhupinder Singh
  • Publication number: 20190032202
    Abstract: A method of vapor depositing a silane chemical onto a wire grid polarizer can include introducing a silane chemical and water into a chamber where the wire grid polarizer is located. The silane chemical and the water can be in a gaseous phase in the chamber. The silane chemical and the water can be maintained simultaneously in the gaseous phase in the chamber for period of time. The silane chemical and the water can react to form a (R1)2Si(OH)2 molecule, where each R1 is independently any chemical element or group. A silane coating can be formed on the wire grid polarizer from a chemical reaction of the (R1)2Si(OH)2 molecule with the wire grid polarizer and with other (R1)2Si(OH)2 molecules. The silane coating can be relatively thick and multi-layer. A thicker or multi-layer silane coating can have improved high temperature resistance relative to a thinner or mono-layer silane coating.
    Type: Application
    Filed: July 5, 2018
    Publication date: January 31, 2019
    Inventors: Anubhav Diwan, Matt Linford