Patents by Inventor Barun Das
Barun Das 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: 12686052Abstract: A sintering composition, consisting essentially of: a solvent; and a metal complex dissolved in the solvent, wherein: the sintering composition contains at least 60 wt. % of the metal complex, based on the total weight of the sintering composition; and the sintering composition contains at least 20 wt. % of the metal of the metal complex, based on the total weight of the sintering composition.Type: GrantFiled: September 24, 2020Date of Patent: July 21, 2026Assignee: ALPHA ASSEMBLY SOLUTIONS INC.Inventors: Shamik Ghoshal, Nirmalya Kumar Chaki, Remya Chandran, Manoharan Venodh, Bawa Singh, Barun Das, Niveditha Nagarajan, Rahul Raut, Oscar Khaselev, Ranjit Pandher, Supriya Devarajan, Anubhav Rustogi
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Patent number: 12497532Abstract: This invention discloses formulations of mutually compatible sets of graphene, graphene-carbon, metal and dielectric inks for the fabrication of high performance membrane touch switches (MTS). The compositions of these inks are optimized to achieve higher degree of compatibility with highly engineered polymeric substrates, thereby offering a holistic solution for fabricating high-performance MTS. These sets of materials can also be used for fabrication of sensors, biosensors and RFIDs on flexible substrates, such as polymers and papers.Type: GrantFiled: February 24, 2023Date of Patent: December 16, 2025Assignees: Alpha Assembly Solutions Inc., MacDermid Autotype LimitedInventors: Nirmalya Kumar Chaki, Chetan Pravinchandra Shah, Barun Das, Supriya Devarajan, Siuli Sarkar, Rahul Raut, Bawa Singh, Anubhav Rustogi, Anna Jane Harris, Keith Paul Parsons, Jeffrey William Braham
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Publication number: 20250026645Abstract: Methods for producing graphene-based products using graphene paste compositions. These methods include producing free-standing graphene foils, films, sheets, polymer supported graphene films, printed graphene structures, graphene features on polymer films, graphene substrates, and graphene metal foils. The methods impart functional characteristics, including corrosion protection and barrier properties to achieve selective enhancement of desired electrical, thermal, mechanical, barrier and other properties.Type: ApplicationFiled: September 30, 2024Publication date: January 23, 2025Applicant: Alpha Assembly Solutions Inc.Inventors: Nirmalyakumar Chaki, Supriya Devarajan, Barun Das, Chetan Pravinchandra Shah, Venodh Manoharan, Rahul Raut, Bawa Singh, Ranjit Pandher
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Publication number: 20240351882Abstract: A method of synthesizing high quality graphene for producing graphene particles and flakes is presented. The engineered qualities of the graphene include size, aspect ratio, edge definition, surface functionalization and controlling the number of layers. Fewer defects are found in the end graphene product in comparison to previous methods. The inventive method of producing graphene is less aggressive, lower cost and more environmentally friendly than previous methods. This method is applicable to both laboratory scale and high volume manufacturing for producing high quality graphene flakes.Type: ApplicationFiled: May 15, 2024Publication date: October 24, 2024Inventors: Nirmalya Kumar CHAKI, Barun DAS, Supriya DEVARAJAN, Siuli SARKAR, Rahul RAUT, Bawa SINGH, Ranjit PANDHER, Oscar KHASELEV
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Patent number: 12122679Abstract: Methods for producing graphene-based products using graphene paste compositions. These methods include producing free-standing graphene foils, films, sheets, polymer supported graphene films, printed graphene structures, graphene features on polymer films, graphene substrates, and graphene metal foils. The methods impart functional characteristics, including corrosion protection and barrier properties to achieve selective enhancement of desired electrical, thermal, mechanical, barrier and other properties.Type: GrantFiled: April 8, 2019Date of Patent: October 22, 2024Assignee: Alpha Assembly Solutions Inc.Inventors: Nirmalya Kumar Chaki, Supriya Devarajan, Barun Das, Chetan Pravinchandra Shah, Venodh Manoharan, Rahul Raut, Bawa Singh, Ranjit Pandher
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Publication number: 20230287232Abstract: This invention discloses formulations of mutually compatible sets of graphene, graphene-carbon, metal and dielectric inks for the fabrication of high performance membrane touch switches (MTS). The compositions of these inks are optimized to achieve higher degree of compatibility with highly engineered polymeric substrates, thereby offering a holistic solution for fabricating high-performance MTS. These sets of materials can also be used for fabrication of sensors, biosensors and RFIDs on flexible substrates, such as polymers and papers.Type: ApplicationFiled: February 24, 2023Publication date: September 14, 2023Inventors: Nirmalya Kumar CHAKI, Chetan Pravinchandra SHAH, Barun DAS, Supriya DEVARAJAN, Siuli SARKAR, Rahul RAUT, Bawa SINGH, Anubhav RUSTOGI, Anna Jane HARRIS, Keith Paul PARSONS, Jeffrey William BRAHAM
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Patent number: 11624000Abstract: This invention discloses formulations of mutually compatible sets of graphene, graphene-carbon, metal and dielectric inks for the fabrication of high performance membrane touch switches (MTS). The compositions of these inks are optimized to achieve higher degree of compatibility with highly engineered polymeric substrates, thereby offering a holistic solution for fabricating high-performance MTS. These sets of materials can also be used for fabrication of sensors, biosensors and RFIDs on flexible substrates, such as polymers and papers.Type: GrantFiled: May 22, 2018Date of Patent: April 11, 2023Assignees: Alpha Assembly Solutions Inc., MacDermid Autotype LimitedInventors: Nirmalya Kumar Chaki, Chetan Pravinchandra Shah, Barun Das, Supriya Devarajan, Siuli Sarkar, Rahul Raut, Bawa Singh, Anubhav Rustogi, Anna Jane Harris, Keith Paul Parsons, Jeffrey William Braham
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Publication number: 20220371089Abstract: A sintering composition, consisting essentially of: a solvent; and a metal complex dissolved in the solvent, wherein: the sintering composition contains at least 60 wt. % of the metal complex, based on the total weight of the sintering composition; and the sintering composition contains at least 20 wt. % of the metal of the metal complex, based on the total weight of the sintering composition.Type: ApplicationFiled: September 24, 2020Publication date: November 24, 2022Inventors: Shamik GHOSHAL, Nirmalya Kumar CHAKI, Remya CHANDRAN, Manoharan VENODH, Bawa SINGH, Barun DAS, Niveditha NAGARAJAN, Rahul RAUT, Oscar KHASELEV, Ranjit PANDHER, Supriya DEVARAJAN, Anubhav RUSTOGI
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Patent number: 11275793Abstract: The disclosure describes techniques for generating device recommendations. The techniques include registering a plurality of Internet of Things (IoT) devices in a social IoT network, where each device performs one or more tasks and the one or more tasks include a first task. The techniques include periodically receiving, with the social IoT network, a work profile from one or more of the registered devices. The work profile includes device information associated with the one or more device tasks performed by the respective registered device. The techniques include grouping devices performing the first task into groups of similar devices, identifying, based on the device information in the work profile received from one or more of the registered devices, at least one device from the group of devices for which recommendations are to be provided, generating the recommendations for the identified device, and providing the recommendations for the identified device.Type: GrantFiled: July 2, 2019Date of Patent: March 15, 2022Assignee: KYNDRYL, INC.Inventors: Edgar Adolfo Zamora Duran, Radha Radha Mohan De, Luis Carlos Cruz Huertas, Roxana Monge Nunez, Barun Das
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Publication number: 20210061664Abstract: Methods for producing graphene-based products using graphene paste compositions. These methods include producing free-standing graphene foils, films, sheets, polymer supported graphene films, printed graphene structures, graphene features on polymer films, graphene substrates, and graphene metal foils. The methods impart functional characteristics, including corrosion protection and barrier properties to achieve selective enhancement of desired electrical, thermal, mechanical, barrier and other properties.Type: ApplicationFiled: April 8, 2019Publication date: March 4, 2021Inventors: Nirmalya Kumar Chaki, Supriya Devarajan, Barun Das, Chetan Pravinchandra Shah, Venodh Manoharan, Rahul Raut, Bawa Singh, Ranjit Pandher
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Publication number: 20210004409Abstract: The disclosure describes techniques for generating device recommendations. The techniques include registering a plurality of Internet of Things (IoT) devices in a social IoT network, where each device performs one or more tasks and the one or more tasks include a first task. The techniques include periodically receiving, with the social IoT network, a work profile from one or more of the registered devices. The work profile includes device information associated with the one or more device tasks performed by the respective registered device. The techniques include grouping devices performing the first task into groups of similar devices, identifying, based on the device information in the work profile received from one or more of the registered devices, at least one device from the group of devices for which recommendations are to be provided, generating the recommendations for the identified device, and providing the recommendations for the identified device.Type: ApplicationFiled: July 2, 2019Publication date: January 7, 2021Inventors: Edgar Adolfo Zamora Duran, Radha Radha Mohan De, Luis Carlos Cruz Huertas, Roxana Monge Nunez, Barun Das
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Patent number: 10682732Abstract: A composition for use in an electronic assembly process, the composition comprising a filler dispersed in an organic medium, wherein: the organic medium comprises a polymer; the filler comprises one or more of graphene, functionalized graphene, graphene oxide, a polyhedral oligomeric silsesquioxane, graphite, a 2D material, aluminum oxide, zinc oxide, aluminum nitride, boron nitride, silver, nano fibers, carbon fibers, diamond, carbon nanotubes, silicon dioxide and metal-coated particles, and the composition comprises from 0.001 to 40 wt. % of the filler based on the total weight of the composition.Type: GrantFiled: March 31, 2016Date of Patent: June 16, 2020Assignee: ALPHA ASSEMBLY SOLUTIONS INC.Inventors: Ramakrishna Hosur Venkatagiriyappa, Morgana De Avila Ribas, Barun Das, Harish Hanchina Siddappa, Sutapa Mukherjee, Siuli Sarkar, Bawa Singh, Rahul Raut, Ranjit Pandher
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Publication number: 20200087528Abstract: This invention discloses formulations of mutually compatible sets of graphene, graphene-carbon, metal and dielectric inks for the fabrication of high performance membrane touch switches (MTS). The compositions of these inks are optimized to achieve higher degree of compatibility with highly engineered polymeric substrates, thereby offering a holistic solution for fabricating high-performance MTS. These sets of materials can also be used for fabrication of sensors, biosensors and RFIDs on flexible substrates, such as polymers and papers.Type: ApplicationFiled: May 22, 2018Publication date: March 19, 2020Inventors: Nirmalya Kumar CHAKI, Chetan Pravinchandra SHAH, Barun DAS, Supriya DEVARAJAN, Siuli SARKAR, Rahul RAUT, Bawa SINGH, Anubhav RUSTOGI, Anna Jane HARRIS, Keith Paul PARSONS, Jeffrey William BRAHAM
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Publication number: 20190143461Abstract: A composition for use in an electronic assembly process, the composition comprising a filler dispersed in an organic medium, wherein: the organic medium comprises a polymer; the filler comprises one or more of graphene, functionalized graphene, graphene oxide, a polyhedral oligomeric silsesquioxane, graphite, a 2D material, aluminum oxide, zinc oxide, aluminum nitride, boron nitride, silver, nano fibers, carbon fibers, diamond, carbon nanotubes, silicon dioxide and metal-coated particles, and the composition comprises from 0.001 to 40 wt. % of the filler based on the total weight of the composition.Type: ApplicationFiled: March 31, 2016Publication date: May 16, 2019Inventors: Ramakrishna Hosur Venkatagiriyappa, Morgana De Avila Ribas, Barun Das, Harish Hanchina Siddappa, Sutapa Mukherjee, Siuli Sarkar, Bawa Singh, Rahul Raut, Ranjit Pandher
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Publication number: 20180072573Abstract: A method of synthesizing high quality graphene for producing graphene particles and flakes is presented. The engineered qualities of the graphene include size, aspect ratio, edge definition, surface functionalization and controlling the number of layers. Fewer defects are found in the end graphene product in comparison to previous methods. The inventive method of producing graphene is less aggressive, lower cost and more environmentally friendly than previous methods. This method is applicable to both laboratory scale and high volume manufacturing for producing high quality graphene flakes.Type: ApplicationFiled: September 14, 2016Publication date: March 15, 2018Inventors: Nirmalya Kumar Chaki, Barun Das, Supriya Devarajan, Siuli Sarkar, Rahul Raut, Bawa Singh, Ranjit Pandher, Oscar Khaselev
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Publication number: 20180056455Abstract: A composition for use in an electronic assembly process, the composition comprising a filler dispersed in an organic medium, wherein: the organic medium comprises a polymer; the filler comprises one or more of graphene, functionalized graphene, graphene oxide, a polyhedral oligomeric silsesquioxane, graphite, a 2D material, aluminum oxide, zinc oxide, aluminum nitride, boron nitride, silver, nano fibers, carbon fibers, diamond, carbon nanotubes, silicon dioxide and metal-coated particles, and the composition comprises from 0.001 to 40 wt. % of the filler based on the total weight of the composition.Type: ApplicationFiled: March 31, 2016Publication date: March 1, 2018Inventors: Ramakrishna Hosur Venkatagiriyappa, Morgana De Avila Ribas, Barun Das, Harish Hanchina Siddappa, Sutapa Mukherjee, Siuli Sarkar, Bawa Singh, Rahul Raut, Ranjit Pandher