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).

  • Publication number: 20230374289
    Abstract: 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: Application
    Filed: October 7, 2021
    Publication date: November 23, 2023
    Inventors: Nirmalya Kumar CHAKI, Chetan Pravinchandra SHAH, Bawa SINGH, Rahul RAUT, Vasuki Srinivas KAUSHIK, Ranjit PANDHER, Niveditha NAGARAJAN, Sandeesh M KUMAR, Anubhav RUSTOGI
  • Publication number: 20230287232
    Abstract: 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: Application
    Filed: February 24, 2023
    Publication date: September 14, 2023
    Inventors: 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
  • Patent number: 11624000
    Abstract: 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: Grant
    Filed: May 22, 2018
    Date of Patent: April 11, 2023
    Assignees: Alpha Assembly Solutions Inc., MacDermid Autotype Limited
    Inventors: 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
  • Publication number: 20220371089
    Abstract: 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: Application
    Filed: September 24, 2020
    Publication date: November 24, 2022
    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
  • Publication number: 20220169905
    Abstract: 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: Application
    Filed: October 4, 2021
    Publication date: June 2, 2022
    Applicant: 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
  • Patent number: 11162007
    Abstract: 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: Grant
    Filed: March 1, 2019
    Date of Patent: November 2, 2021
    Assignee: 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
  • Publication number: 20210249376
    Abstract: A sintering powder comprising: a first type of metal particles having a mean longest dimension of from 100 nm to 50 ?m.
    Type: Application
    Filed: April 30, 2021
    Publication date: August 12, 2021
    Applicant: ALPHA ASSEMBLY SOLUTIONS INC.
    Inventors: Shamik Ghoshal, Nirmalya Kumar Chaki, Poulami Sengupta Roy, Siuli Sarkar, Anubhav Rustogi
  • Patent number: 10998284
    Abstract: A sintering powder comprising: a first type of metal particles having a mean longest dimension of from 100 nm to 50 ?m.
    Type: Grant
    Filed: April 10, 2015
    Date of Patent: May 4, 2021
    Assignee: Alpha Assembly Solutions Inc.
    Inventors: Shamik Ghoshal, Nirmalya Kumar Chaki, Poulami Sengupta Roy, Siuli Sarkar, Anubhav Rustogi
  • Publication number: 20210061664
    Abstract: 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: Application
    Filed: April 8, 2019
    Publication date: March 4, 2021
    Inventors: Nirmalya Kumar Chaki, Supriya Devarajan, Barun Das, Chetan Pravinchandra Shah, Venodh Manoharan, Rahul Raut, Bawa Singh, Ranjit Pandher
  • Publication number: 20200087528
    Abstract: 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: Application
    Filed: May 22, 2018
    Publication date: March 19, 2020
    Inventors: 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
  • Publication number: 20190194517
    Abstract: 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: Application
    Filed: March 1, 2019
    Publication date: June 27, 2019
    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
  • Patent number: 10259980
    Abstract: 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: Grant
    Filed: October 29, 2013
    Date of Patent: April 16, 2019
    Assignee: 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
  • Patent number: 10130995
    Abstract: 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: Grant
    Filed: April 10, 2015
    Date of Patent: November 20, 2018
    Assignee: Alpha Assembly Solutions Inc.
    Inventors: Nirmalya Kumar Chaki, Poulami Sengupta Roy, Siuli Sarkar, Sutapa Mukherjee
  • Publication number: 20180072573
    Abstract: 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: Application
    Filed: September 14, 2016
    Publication date: March 15, 2018
    Inventors: Nirmalya Kumar Chaki, Barun Das, Supriya Devarajan, Siuli Sarkar, Rahul Raut, Bawa Singh, Ranjit Pandher, Oscar Khaselev
  • Publication number: 20170028477
    Abstract: 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: Application
    Filed: April 10, 2015
    Publication date: February 2, 2017
    Inventors: Rohan P. Setna, Nirmalya Kumar Chaki, Poulami Sengupta Roy, Siuli Sarkar, Sutapa Mukherjee
  • Publication number: 20170033073
    Abstract: A sintering powder comprising: a first type of metal particles having a mean longest dimension of from 100 nm to 50 ?m.
    Type: Application
    Filed: April 10, 2015
    Publication date: February 2, 2017
    Inventors: Shamik GHOSHAL, Nirmalya Kumar CHAKI, Poulami Sengupta ROY, Siuli SARKAR, Anubhav RUSTOGI
  • Publication number: 20150353804
    Abstract: 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: Application
    Filed: October 29, 2013
    Publication date: December 10, 2015
    Applicant: 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