Patents by Inventor Narahari Pujari
Narahari Pujari 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: 20240029916Abstract: A conductive paste and method of manufacturing thereof. The conductive paste comprises conductive particles dispersed in an organic medium, the organic medium comprising: (a) a solvent; and (b) a binder comprising a polyester. The conductive paste typically comprises silver and may contain various other additives. A stretchable conductive layer can be formed by curing the conductive paste.Type: ApplicationFiled: October 5, 2023Publication date: January 25, 2024Inventors: Narahari PUJARI, Bawa SINGH, Ravi BHATKAL, Siuli SARKAR, Anubhav RUSTOGI
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Patent number: 11830640Abstract: A conductive paste and method of manufacturing thereof. The conductive paste comprises conductive particles dispersed in an organic medium, the organic medium comprising: (a) a solvent; and (b) a binder comprising a polyester. The conductive paste typically comprises silver and may contain various other additives. A stretchable conductive layer can be formed by curing the conductive paste.Type: GrantFiled: July 22, 2021Date of Patent: November 28, 2023Assignee: Alpha Assembly Solutions, Inc.Inventors: Narahari Pujari, Bawa Singh, Ravi Bhatkal, Siuli Sarkar, Anubhav Rustogi
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Publication number: 20220216357Abstract: A method of fabricating a solar module by interconnection of a plurality of photovoltaic (PV) cells in which at least a first PV cell is interconnected to a second PV cell using an electrically-conductive adherent comprising or consisting of a solder paste. The solder paste comprises particles of solder alloy dispersed in a solder flux. The solder alloy comprises a Sn-containing solder alloy having a liquidus temperature of less than 225° C.Type: ApplicationFiled: May 22, 2020Publication date: July 7, 2022Inventors: Narahari PUJARI, Siuli SARKAR, Carl BILGRIEN
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Publication number: 20220064466Abstract: The present invention relates to flexible and stretchable UV and thermally curable dielectric ink compositions that can be thermo or vacuum formed. The flexible ink can form a stretchable dielectric coating having excellent adhesion. The dielectric ink compositions can be applied on a circuit board, such as a paper-phenolic resin board, plastic board (PMMA, PET or the like) or a glass-epoxy resin board, by screen printing or the like, followed by heat/UV curing. The compositions are suitable for use in applications such as a capacitive touch, in-mold forming, creating cross over insulation layers, and manufacturing electronic circuity and devices.Type: ApplicationFiled: November 12, 2021Publication date: March 3, 2022Applicant: Alpha Assembly Solutions Inc.Inventors: Narahari PUJARI, Jayaprakash SUNDARAMURTHY, Siuli SARKAR, Ravindra M. BHATKAL
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Patent number: 11193031Abstract: The present invention relates to flexible and stretchable UV and thermally curable dielectric ink compositions that can be thermo or vacuum formed. The flexible ink can form a stretchable dielectric coating having excellent adhesion. The dielectric ink compositions can be applied on a circuit board, such as a paper-phenolic resin board, plastic board (PMMA, PET or the like) or a glass-epoxy resin board, by screen printing or the like, followed by heat/UV curing. The compositions are suitable for use in applications such as a capacitive touch, in-mold forming, creating cross over insulation layers, and manufacturing electronic circuitry and devices.Type: GrantFiled: May 14, 2018Date of Patent: December 7, 2021Assignee: Alpha Assembly Solutions Inc.Inventors: Narahari Pujari, Jayaprakash Sundaramurthy, Siuli Sarkar, Ravindra M. Bhatkal
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Publication number: 20210350949Abstract: A conductive paste and method of manufacturing thereof. The conductive paste comprises conductive particles dispersed in an organic medium, the organic medium comprising: (a) a solvent; and (b) a binder comprising a polyester. The conductive paste typically comprises silver and may contain various other additives. A stretchable conductive layer can be formed by curing the conductive paste.Type: ApplicationFiled: July 22, 2021Publication date: November 11, 2021Inventors: Narahari PUJARI, Bawa SINGH, Ravi BHATKAL, Siuli SARKAR, Anubhav RUSTOGI
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Patent number: 11139089Abstract: A conductive paste and method of manufacturing thereof. The conductive paste comprises conductive particles dispersed in an organic medium, the organic medium comprising: (a) a solvent; and (b) a binder comprising a polyester. The conductive paste typically comprises silver and may contain various other additives. A stretchable conductive layer can be formed by curing the conductive paste.Type: GrantFiled: May 29, 2020Date of Patent: October 5, 2021Assignee: Alpha Assembly Solutions Inc.Inventors: Narahari Pujari, Bawa Singh, Ravi Bhatkal, Siuli Sarkar, Anubhav Rustogi
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Publication number: 20200294686Abstract: A conductive paste and method of manufacturing thereof. The conductive paste comprises conductive particles dispersed in an organic medium, the organic medium comprising: (a) a solvent; and (b) a binder comprising a polyester. The conductive paste typically comprises silver and may contain various other additives. A stretchable conductive layer can be formed by curing the conductive paste.Type: ApplicationFiled: May 29, 2020Publication date: September 17, 2020Inventors: Narahari PUJARI, Bawa SINGH, Ravi BHATKAL, Siuli SARKAR, Anubhav RUSTOGI
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Publication number: 20200190347Abstract: The present invention relates to flexible and stretchable UV and thermally curable dielectric ink compositions that can be thermo or vacuum formed. The flexible ink can form a stretchable dielectric coating having excellent adhesion. The dielectric ink compositions can be applied on a circuit board, such as a paper-phenolic resin board, plastic board (PMMA, PET or the like) or a glass-epoxy resin board, by screen printing or the like, followed by heat/UV curing. The compositions are suitable for use in applications such as a capacitive touch, in-mold forming, creating cross over insulation layers, and manufacturing electronic circuitry and devices.Type: ApplicationFiled: May 14, 2018Publication date: June 18, 2020Inventors: Narahari PUJARI, Jayaprakash SUNDARAMURTHY, Siuli SARKAR, Ravindra M. BHATKAL
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Patent number: 10672531Abstract: A conductive paste and method of manufacturing thereof. The conductive paste comprises conductive particles dispersed in an organic medium, the organic medium comprising: (a) a solvent; and (b) a binder comprising a polyester. The conductive paste typically comprises silver and may contain various other additives. A stretchable conductive layer can be formed by curing the conductive paste.Type: GrantFiled: July 14, 2015Date of Patent: June 2, 2020Assignee: Alpha Assembly Solutions Inc.Inventors: Narahari Pujari, Bawa Singh, Ravi Bhatkal, Siuli Sarkar, Anubhav Rustogi
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Patent number: 10494696Abstract: A method for recovering tin and/or tin alloy from a substrate comprising providing a substrate having tin and/or tin alloy thereon; contacting the tin and/or tin alloy with a stripping solution comprising an inorganic acid and a persulfate compound; recovering tin salt and/or tin alloy salt precipitated from the stripping solution; and recovering tin and/or tin alloy from the tin salt and/or tin alloy salt, respectively.Type: GrantFiled: July 2, 2014Date of Patent: December 3, 2019Assignee: Alpha Assembly Solution Inc.Inventors: Narahari Pujari, Siuli Sarkar, Bawa Singh, Daniel Goswami
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Patent number: 9751159Abstract: Flux formulations that remain pliable and tack-free after deposition are disclosed. In certain examples, the flux comprises a first component and an effective amount of a second component to provide a pliable flux after deposition. The flux may also include activators, plasticizers, surface active agents and other components.Type: GrantFiled: December 27, 2016Date of Patent: September 5, 2017Inventors: Narahari Pujari, Sanyogita Arora, Siuli Sarkar, Anna Lifton, Rahul Raut, Bawa Singh
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Publication number: 20170200527Abstract: A conductive paste and method of manufacturing thereof. The conductive paste comprises conductive particles dispersed in an organic medium, the organic medium comprising: (a) a solvent; and (b) a binder comprising a polyester. The conductive paste typically comprises silver and may contain various other additives. A stretchable conductive layer can be formed by curing the conductive paste.Type: ApplicationFiled: July 14, 2015Publication date: July 13, 2017Inventors: Narahari PUJARI, Bawa SINGH, Ravi BHATKAL, Siuli SARKAR, Anubhav RUSTOGI
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Publication number: 20170106479Abstract: Flux formulations that remain pliable and tack-free after deposition are disclosed. In certain examples, the flux comprises a first component and an effective amount of a second component to provide a pliable flux after deposition. The flux may also include activators, plasticizers, surface active agents and other components.Type: ApplicationFiled: December 27, 2016Publication date: April 20, 2017Inventors: Narahari Pujari, Sanyogita Arora, Siuli Sarkar, Anna Lifton, Rahul Raut, Bawa Singh
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Patent number: 9566668Abstract: Flux formulations that remain pliable and tack-free after deposition are disclosed. In certain examples, the flux comprises a first component and an effective amount of a second component to provide a pliable flux after deposition. The flux may also include activators, plasticizers, surface active agents and other components.Type: GrantFiled: November 12, 2013Date of Patent: February 14, 2017Inventors: Narahari Pujari, Sanyogita Arora, Siuli Sarkar, Anna Lifton, Rahul Raut, Bawa Singh
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Publication number: 20160304989Abstract: A method for recovering tin and/or tin alloy from a substrate comprising providing a substrate having tin and/or tin alloy thereon; contacting the tin and/or tin alloy with a stripping solution comprising an inorganic acid and a persulfate compound; recovering tin salt and/or tin alloy salt precipitated from the stripping solution; and recovering tin and/or tin alloy from the tin salt and/or tin alloy salt, respectively.Type: ApplicationFiled: July 2, 2014Publication date: October 20, 2016Applicant: Alpha Metals, Inc.Inventors: Narahari Pujari, Siuli Sarkar, Bawa Singh, Daniel Goswami
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Publication number: 20140060703Abstract: Flux formulations that remain pliable and tack-free after deposition are disclosed. In certain examples, the flux comprises a first component and an effective amount of a second component to provide a pliable flux after deposition. The flux may also include activators, plasticizers, surface active agents and other components.Type: ApplicationFiled: November 12, 2013Publication date: March 6, 2014Inventors: Narahari Pujari, Sanyogita Arora, Siuli Sarkar, Anna Lifton, Rahul Raut, Bawa Singh