公开(公告)号：US20240351882A1

公开(公告)日：2024-10-24

申请号：US18664412

申请日：2024-05-15

Applicant: ALPHA ASSEMBLY SOLUTIONS INC.

Inventor： Nirmalya Kumar CHAKI ,  Barun DAS ,  Supriya DEVARAJAN ,  Siuli SARKAR ,  Rahul RAUT ,  Bawa SINGH ,  Ranjit PANDHER ,  Oscar KHASELEV

IPC: C01B32/19 ,  C25B1/00 ,  C25B9/00

CPC classification number: C01B32/19 ,  C25B1/00 ,  C25B9/00

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.

公开(公告)号：US20230287232A1

公开(公告)日：2023-09-14

申请号：US18113812

申请日：2023-02-24

Applicant: Alpha Assembly Solutions Inc. ,  MacDermid Autotype Limited

Inventor： 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

IPC: C09D11/52 ,  C09D11/033 ,  C09D11/037 ,  C09D11/104 ,  H01H13/704

CPC classification number: C09D11/52 ,  C09D11/033 ,  C09D11/037 ,  C09D11/104 ,  H01H13/704 ,  H01H2209/016

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.

公开(公告)号：US20220371089A1

公开(公告)日：2022-11-24

申请号：US17754125

申请日：2020-09-24

Applicant: Alpha Assembly Solutions Inc.

Inventor： 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

IPC: B22F7/04 ,  B22F1/107 ,  B22F9/30 ,  H05K1/09 ,  H05K3/12 ,  H01B13/012 ,  H05K3/34 ,  H01L23/00 ,  H01B1/02 ,  B23K35/30

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.

公开(公告)号：US20200087528A1

公开(公告)日：2020-03-19

申请号：US16616701

申请日：2018-05-22

Applicant: Alpha Assembly Solutions Inc. ,  MacDermid Autotype Limited

Inventor： 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

IPC: C09D11/52 ,  C09D11/037 ,  C09D11/033 ,  C09D11/104 ,  H01H13/704

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.