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).
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Patent number: 12189161Abstract: 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: GrantFiled: July 31, 2023Date of Patent: January 7, 2025Assignee: Moxtek, Inc.Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
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Publication number: 20230375766Abstract: 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: ApplicationFiled: July 31, 2023Publication date: November 23, 2023Inventors: Bradley R. WILLIAMS, R. Stewart NIELSON, Anubhav DIWAN, Eric GARDNER, Shaun Patrick OGDEN, Bob WEST
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Patent number: 11822182Abstract: 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: GrantFiled: July 20, 2020Date of Patent: November 21, 2023Assignee: Moxtek, Inc.Inventors: Anubhav Diwan, Matt Linford
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Patent number: 11754765Abstract: 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: GrantFiled: June 28, 2021Date of Patent: September 12, 2023Assignee: Moxtek, Inc.Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
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Patent number: 11746418Abstract: 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: GrantFiled: November 5, 2019Date of Patent: September 5, 2023Assignee: Moxtek, Inc.Inventors: Matthew R. Linford, Brian Johnson, Anubhav Diwan
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Patent number: 11555953Abstract: 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: GrantFiled: August 13, 2020Date of Patent: January 17, 2023Assignee: Moxtek, Inc.Inventors: Anubhav Diwan, Bradley R. Williams, R. Stewart Nielson
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Patent number: 11513272Abstract: 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: GrantFiled: July 28, 2020Date of Patent: November 29, 2022Assignee: Moxtek, Inc.Inventors: Stew Nielson, Matt Linford, Anubhav Diwan, Matthew C. George
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Publication number: 20210325589Abstract: 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: ApplicationFiled: June 28, 2021Publication date: October 21, 2021Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
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Patent number: 11079528Abstract: 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: GrantFiled: March 27, 2019Date of Patent: August 3, 2021Assignee: Moxtek, Inc.Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
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Patent number: 10969307Abstract: 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: GrantFiled: July 23, 2019Date of Patent: April 6, 2021Assignee: Moxtek, Inc.Inventors: Matthew R. Linford, Anubhav Diwan, Bhupinder Singh
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Publication number: 20210063623Abstract: 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: ApplicationFiled: August 13, 2020Publication date: March 4, 2021Inventors: Anubhav Diwan, Bradley R. Williams, R. Stewart Nielson
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Publication number: 20200363577Abstract: 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: ApplicationFiled: July 28, 2020Publication date: November 19, 2020Inventors: Stew Nielson, Matt Linford, Anubhav Diwan, Matthew C. George
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Publication number: 20200347495Abstract: 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: ApplicationFiled: July 20, 2020Publication date: November 5, 2020Inventors: Anubhav Diwan, Matt Linford
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Patent number: 10761252Abstract: 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: GrantFiled: May 14, 2018Date of Patent: September 1, 2020Assignee: Moxtek, Inc.Inventors: Stew Nielson, Matt Linford, Anubhav Diwan, Matthew C. George
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Patent number: 10752989Abstract: 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: GrantFiled: July 5, 2018Date of Patent: August 25, 2020Assignee: Moxtek, Inc.Inventors: Anubhav Diwan, Matt Linford
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Publication number: 20200173021Abstract: 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: ApplicationFiled: November 5, 2019Publication date: June 4, 2020Inventors: Matthew R. Linford, Brian Johnson, Anubhav Diwan
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Patent number: 10534120Abstract: 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: GrantFiled: June 23, 2017Date of Patent: January 14, 2020Assignee: Moxtek, Inc.Inventors: R. Stewart Nielson, Mathew Free, Bradley R. Williams, Matthew R. Linford, Anubhav Diwan, Fred Lane, Shaun Ogden
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Publication number: 20190346346Abstract: 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: ApplicationFiled: July 23, 2019Publication date: November 14, 2019Inventors: Matthew R. Linford, Anubhav Diwan, Bhupinder Singh
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Publication number: 20190317260Abstract: 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: ApplicationFiled: March 27, 2019Publication date: October 17, 2019Inventors: Bradley R. Williams, R. Stewart Nielson, Anubhav Diwan, Eric Gardner, Shaun Patrick Ogden, Bob West
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Patent number: 10422725Abstract: 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: GrantFiled: February 28, 2018Date of Patent: September 24, 2019Assignee: Moxtek, Inc.Inventors: Matthew R. Linford, Anubhav Diwan, Bhupinder Singh