Patents by Inventor Nirmalya Kumar Chaki
Nirmalya Kumar Chaki 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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Publication number: 20230374289Abstract: A composition for use in the manufacture of an in-mould electronic (IME) component, the composition containing a binder comprising: a cross-linking agent comprising melamine formaldehyde, a thermoplastic resin comprising a hydroxyl group, and a solvent.Type: ApplicationFiled: October 7, 2021Publication date: November 23, 2023Inventors: Nirmalya Kumar CHAKI, Chetan Pravinchandra SHAH, Bawa SINGH, Rahul RAUT, Vasuki Srinivas KAUSHIK, Ranjit PANDHER, Niveditha NAGARAJAN, Sandeesh M KUMAR, Anubhav RUSTOGI
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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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Publication number: 20220169905Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.Type: ApplicationFiled: October 4, 2021Publication date: June 2, 2022Applicant: Alpha Assembly Solutions Inc.Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana de Avila Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki
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Patent number: 11162007Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.Type: GrantFiled: March 1, 2019Date of Patent: November 2, 2021Assignee: Alpha Assembly Solutions Inc.Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana de Avila Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki
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Publication number: 20210249376Abstract: A sintering powder comprising: a first type of metal particles having a mean longest dimension of from 100 nm to 50 ?m.Type: ApplicationFiled: April 30, 2021Publication date: August 12, 2021Applicant: ALPHA ASSEMBLY SOLUTIONS INC.Inventors: Shamik Ghoshal, Nirmalya Kumar Chaki, Poulami Sengupta Roy, Siuli Sarkar, Anubhav Rustogi
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Patent number: 10998284Abstract: A sintering powder comprising: a first type of metal particles having a mean longest dimension of from 100 nm to 50 ?m.Type: GrantFiled: April 10, 2015Date of Patent: May 4, 2021Assignee: Alpha Assembly Solutions Inc.Inventors: Shamik Ghoshal, Nirmalya Kumar Chaki, Poulami Sengupta Roy, Siuli Sarkar, Anubhav Rustogi
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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: 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: 20190194517Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.Type: ApplicationFiled: March 1, 2019Publication date: June 27, 2019Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana de Avila Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki
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Patent number: 10259980Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.Type: GrantFiled: October 29, 2013Date of Patent: April 16, 2019Assignee: Alpha Assembly Solutions Inc.Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki
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Patent number: 10130995Abstract: A method for manufacturing metal powder comprising: providing a basic metal salt solution; contacting the basic metal salt solution with a reducing agent to precipitate metal powder therefrom; and recovering precipitated metal powder from the solvent.Type: GrantFiled: April 10, 2015Date of Patent: November 20, 2018Assignee: Alpha Assembly Solutions Inc.Inventors: Nirmalya Kumar Chaki, Poulami Sengupta Roy, Siuli Sarkar, Sutapa Mukherjee
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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: 20170028477Abstract: A method for manufacturing metal powder comprising: providing a basic metal salt solution; contacting the basic metal salt solution with a reducing agent to precipitate metal powder therefrom; and recovering precipitated metal powder from the solvent.Type: ApplicationFiled: April 10, 2015Publication date: February 2, 2017Inventors: Rohan P. Setna, Nirmalya Kumar Chaki, Poulami Sengupta Roy, Siuli Sarkar, Sutapa Mukherjee
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Publication number: 20170033073Abstract: A sintering powder comprising: a first type of metal particles having a mean longest dimension of from 100 nm to 50 ?m.Type: ApplicationFiled: April 10, 2015Publication date: February 2, 2017Inventors: Shamik GHOSHAL, Nirmalya Kumar CHAKI, Poulami Sengupta ROY, Siuli SARKAR, Anubhav RUSTOGI
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Publication number: 20150353804Abstract: A sintering powder comprising: a particulate having a mean longest diameter of less than 10 microns, wherein at least some of the particles forming the particulate comprise a metal at least partially coated with a capping agent. A sintering paste and sintering film comprising the sintering powder. A method for making a sintered joint by sintering the sintering powder, paste, or film in the vicinity of two or more workpieces.Type: ApplicationFiled: October 29, 2013Publication date: December 10, 2015Applicant: ALPHA METALS, INC.Inventors: Shamik Ghosal, Ranjit Pandher, Oscar Khaselev, Ravi Bhatkal, Rahul Raut, Bawa Singh, Morgana Ribas, Siuli Sarkar, Sutapa Mukherjee, Sathish Kumar, Remya Chandran, Pavan Vishwanath, Ashok Pachamuthu, Monnir Boureghda, Nitin Desai, Anna Lifton, Nirmalya Kumar Chaki