Patents by Inventor Amlan Datta
Amlan Datta 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: 11978799Abstract: A method of fabricating a MOS transistor having a thinned channel region is described. The channel region is etched following removal of a dummy gate. The source and drain regions have relatively low resistance with the process.Type: GrantFiled: January 13, 2021Date of Patent: May 7, 2024Assignee: Tahoe Research, Ltd.Inventors: Justin K. Brask, Robert S. Chau, Suman Datta, Mark L. Doczy, Brian S. Doyle, Jack T. Kavalieros, Amlan Majumdar, Matthew V. Metz, Marko Radosavljevic
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Patent number: 11884880Abstract: A method of preparing a solid surfactant composite may include: coating a liquid water-wetting surfactant on a solid carrier; and drying the solid carrier to produce the solid surfactant composite. A method may include: introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite; and displacing a fluid in the wellbore using the spacer fluid.Type: GrantFiled: July 20, 2022Date of Patent: January 30, 2024Assignee: Halliburton Energy Services, Inc.Inventors: Paul Joseph Jones, Amlan Datta, Brittany Michelle Elbel, Kyriacos Agapiou
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Publication number: 20230107565Abstract: In one aspect, a radiation detector is disclosed, which includes a substrate having a plurality of microcapillary channels, and a crystalline scintillator material disposed in said channels so as to generate a plurality of independent radiation sensing elements associated with each channel for detecting incident radiation and generating an optical radiation in response to the detection of the incident radiation. In some embodiments, the incident radiation can include any of alpha (?), beta (?), gamma (?), X-ray and neutrons.Type: ApplicationFiled: December 12, 2022Publication date: April 6, 2023Applicant: Capesym, Inc.Inventors: Amlan DATTA, Shariar MOTAKEF
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Publication number: 20230039378Abstract: In one aspect, a radiation detector is disclosed, which includes a substrate having a plurality of microcapillary channels, and a crystalline scintillator material disposed in said channels so as to generate a plurality of independent radiation sensing elements associated with each channel for detecting incident radiation and generating an optical radiation in response to the detection of the incident radiation. In some embodiments, the incident radiation can include any of alpha (?), beta (?), gamma (?), X-ray and neutrons.Type: ApplicationFiled: July 13, 2022Publication date: February 9, 2023Applicant: Capesym, Inc.Inventors: Amlan DATTA, Shariar MOTAKEF
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Publication number: 20220356391Abstract: A method of preparing a solid surfactant composite may include: coating a liquid water-wetting surfactant on a solid carrier; and drying the solid carrier to produce the solid surfactant composite. A method may include: introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite; and displacing a fluid in the wellbore using the spacer fluid.Type: ApplicationFiled: July 20, 2022Publication date: November 10, 2022Applicant: Halliburton Energy Services, Inc.Inventors: Paul Joseph Jones, Amlan Datta, Brittany Michelle Elbel, Kyriacos Agapiou
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Publication number: 20220344525Abstract: A radiation detector includes a halide semiconductor sandwiched a cathode and an anode and a buffer layer between the halide semiconductor and the anode. The anode comprises a composition selected from: (a) an electrically conducting inorganic-oxide composition, (b) an electrically conducting organic composition, and (c) an organic-inorganic hybrid composition. The buffer layer comprises a composition selected from: (a) a composition distinct from the composition of the anode and including at least one other electrically conducting inorganic-oxide composition, electrically conducting organic composition, or organic-inorganic hybrid composition; (b) a semi-insulating layer selected from: (i) a polymer-based composition; (ii) a perovskite-based composition; (iii) an oxide-semiconductor composition; (iv) a polycrystalline halide semiconductor; (v) a carbide, nitride, phosphide, or sulfide semiconductor; and (vi) a group II-VI or III-V semiconductor; and (c) a component metal of the halide-semiconductor.Type: ApplicationFiled: July 12, 2022Publication date: October 27, 2022Applicant: CapeSym, Inc.Inventors: Amlan Datta, Shariar Motakef
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Patent number: 11434414Abstract: A method of preparing a solid surfactant composite may include: coating a liquid water-wetting surfactant on a solid carrier; and drying the solid carrier to produce the solid surfactant composite. A method may include: introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite; and displacing a fluid in the wellbore using the spacer fluid.Type: GrantFiled: July 12, 2019Date of Patent: September 6, 2022Assignee: Halliburton Energy Services, Inc.Inventors: Paul Joseph Jones, Amlan Datta, Brittany Michelle Elbel, Kyriacos Agapiou
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Patent number: 11409008Abstract: A radiation detector includes a halide semiconductor sandwiched a cathode and an anode and a buffer layer between the halide semiconductor and the anode. The anode comprises a composition selected from: (a) an electrically conducting inorganic-oxide composition, (b) an electrically conducting organic composition, and (c) an organic-inorganic hybrid composition. The buffer layer comprises a composition selected from: (a) a composition distinct from the composition of the anode and including at least one other electrically conducting inorganic-oxide composition, electrically conducting organic composition, or organic-inorganic hybrid composition; (b) a semi-insulating layer selected from: (i) a polymer-based composition; (ii) a perovskite-based composition; (iii) an oxide-semiconductor composition; (iv) a polycrystalline halide semiconductor; (v) a carbide, nitride, phosphide, or sulfide semiconductor; and (vi) a group II-VI or III-V semiconductor; and (c) a component metal of the halide-semiconductor.Type: GrantFiled: April 13, 2020Date of Patent: August 9, 2022Assignee: CapeSym, Inc.Inventors: Amlan Datta, Shariar Motakef
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Publication number: 20210318454Abstract: A radiation detector includes a halide semiconductor sandwiched a cathode and an anode and a buffer layer between the halide semiconductor and the anode. The anode comprises a composition selected from: (a) an electrically conducting inorganic-oxide composition, (b) an electrically conducting organic composition, and (c) an organic-inorganic hybrid composition. The buffer layer comprises a composition selected from: (a) a composition distinct from the composition of the anode and including at least one other electrically conducting inorganic-oxide composition, electrically conducting organic composition, or organic-inorganic hybrid composition; (b) a semi-insulating layer selected from: (i) a polymer-based composition; (ii) a perovskite-based composition; (iii) an oxide-semiconductor composition; (iv) a polycrystalline halide semiconductor; (v) a carbide, nitride, phosphide, or sulfide semiconductor; and (vi) a group II-VI or III-V semiconductor; and (c) a component metal of the halide-semiconductor.Type: ApplicationFiled: April 13, 2020Publication date: October 14, 2021Applicant: CapeSym, Inc.Inventors: Amlan Datta, Shariar Motakef
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Publication number: 20200032129Abstract: A method of preparing a solid surfactant composite may include: coating a liquid water-wetting surfactant on a solid carrier; and drying the solid carrier to produce the solid surfactant composite. A method may include: introducing a spacer fluid into a wellbore, the spacer fluid comprising a solid surfactant composite; and displacing a fluid in the wellbore using the spacer fluid.Type: ApplicationFiled: July 12, 2019Publication date: January 30, 2020Applicant: Halliburton Energy Services, Inc.Inventors: Paul Joseph Jones, Amlan Datta, Brittany Michelle Elbel, Kyriacos Agapiou
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Publication number: 20120201094Abstract: A dispersion apparatus for agitating particulate mass in a rotating drum. The dispersion apparatus comprises a plurality of perforated flights radically extending from the inner surface of the rotating drum which rotates about an operatively longitudinal axis. The perforated flights are provided with at least one perforation. The perforated flights have the advantage of increasing the throughput of the rotating drum unit, reducing the time required for heating and mass transfer by increasing the contact surface of the perforated flights with the particulate mass to be dispersed by the dispersion apparatus.Type: ApplicationFiled: March 15, 2011Publication date: August 9, 2012Applicant: Aditya Birla Science & Technology Co., Ltd.Inventors: Amlan Datta, Parag Malode
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Patent number: 7878026Abstract: A synthetic microsphere having a low alkali metal oxide content and methods of forming the microsphere and its components are provided. The synthetic microsphere is substantially chemically inert and thus a suitable replacement for natural cenospheres, particularly in caustic environments such as cementitious mixtures. The synthetic microsphere can be made from an agglomerate precursor that includes an aluminosilicate material, such as fly ash, a blowing agent such as sugar, carbon black, and silicon carbide, and a binding agent. The synthetic microsphere is produced when the precursor is fired at a pre-determined temperature profile so as to form either solid or hollow synthetic microspheres depending on the processing conditions and/or components used.Type: GrantFiled: August 25, 2003Date of Patent: February 1, 2011Assignee: James Hardie Technology LimitedInventors: Amlan Datta, Hamid Hojaji, David L. Melmeth, James A. McFarlane, Thinh Pham, Noel E. Thompson, Huagang Zhang
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Publication number: 20100192808Abstract: A building product incorporating synthetic microspheres having a low alkali metal oxide content is provided. The synthetic microspheres are substantially chemically inert and thus a suitable replacement for natural cenospheres, particularly in caustic environments such as cementitious mixtures. The building product can have a cementitious matrix such as a fiber cement product. The synthetic microspheres can be incorporated as a low density additive and/or a filler for the building product and/or the like.Type: ApplicationFiled: December 30, 2009Publication date: August 5, 2010Inventors: Amlan Datta, Hamid Hojaji, David L. Melmeth, James A. McFarlane, Thinh Pham, Noel E. Thompson, Huagang Zhang
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Patent number: 7666505Abstract: A synthetic microsphere having a low alkali metal oxide content and methods of forming the microsphere and its components are provided. The synthetic microsphere is substantially chemically inert and thus a suitable replacement for natural cenospheres, particularly in caustic environments such as cementitious mixtures. The synthetic microsphere can be made from an agglomerate precursor that includes an aluminosilicate material, such as fly ash, a blowing agent such as sugar, carbon black, and silicon carbide, and a binding agent. The synthetic microsphere is produced when the precursor is fired at a pre-determined temperature profile so as to form either solid or hollow synthetic microspheres depending on the processing conditions and/or components used.Type: GrantFiled: August 25, 2003Date of Patent: February 23, 2010Assignee: James Hardie Technology LimitedInventors: Amlan Datta, Hamid Hojaji, David L. Melmeth, James A. McFarlane, Thinh Pham, Noel E. Thompson, Huagang Zhang
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Patent number: 7651563Abstract: A building product incorporating synthetic microspheres having a low alkali metal oxide content is provided. The synthetic microspheres are substantially chemically inert and thus a suitable replacement for cenospheres derived from coal combustion, particularly in caustic environments such as cementitious mixtures. The building product can have a cementitious matrix such as a fiber cement product. The synthetic microspheres can be incorporated as a low density additive and/or a filler for the building product and/or the like.Type: GrantFiled: August 25, 2003Date of Patent: January 26, 2010Assignee: James Hardie Technology LimitedInventors: Amlan Datta, Hamid Hojaji, David L. Melmeth, James A. McFarlane, Thinh Pham, Noel E. Thompson, Huagang Zhang
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Publication number: 20090146108Abstract: A method of preparing a low-density material and precursor for forming a low-density material is provided. An aqueous mixture of inorganic primary component and a blowing agent is formed, the mixture is dried and optionally ground to form an expandable precursor. Such a precursor is then fired with activation of the blowing agent being controlled such that it is activated within a predetermined optimal temperature range. Control of the blowing agent can be accomplished via a variety of means including appropriate distribution throughout the precursor, addition of a control agent into the precursor, or modification of the firing conditions such as oxygen deficient or fuel rich environment, plasma heating etc.Type: ApplicationFiled: November 6, 2008Publication date: June 11, 2009Inventors: Amlan Datta, Hamid Hojaji, Shannon Marie Labernik, David Leslie Melmeth, Thinh Pham, Huagang Zhang
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Patent number: 7455798Abstract: A method of preparing a low-density material and precursor for forming a low-density material is provided. An aqueous mixture of inorganic primary component and a blowing agent is formed, the mixture is dried and optionally ground to form an expandable precursor. Such a precursor is then fired with activation of the blowing agent being controlled such that it is activated within a predetermined optimal temperature range. Control of the blowing agent can be accomplished via a variety of means including appropriate distribution throughout the precursor, addition of a control agent into the precursor, or modification of the firing conditions such as oxygen deficient or fuel rich environment, plasma heating etc.Type: GrantFiled: February 25, 2004Date of Patent: November 25, 2008Assignee: James Hardie International Finance B.V.Inventors: Amlan Datta, Hamid Hojaji, Shannon Marie Labernik, David Leslie Melmeth, Thinh Pham, Huagang Zhang
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Publication number: 20040081827Abstract: A synthetic microsphere having a low alkali metal oxide content and methods of forming the microsphere and its components are provided. The synthetic microsphere is substantially chemically inert and thus a suitable replacement for natural cenospheres, particularly in caustic environments such as cementitious mixtures. The synthetic microsphere can be made from an agglomerate precursor that includes an aluminosilicate material, such as fly ash, a blowing agent such as sugar, carbon black, and silicon carbide, and a binding agent. The synthetic microsphere is produced when the precursor is fired at a pre-determined temperature profile so as to form either solid or hollow synthetic microspheres depending on the processing conditions and/or components used.Type: ApplicationFiled: August 25, 2003Publication date: April 29, 2004Inventors: Amlan Datta, Hamid Hojaji, David L. Melmeth, James A. McFarlane, Thinh Pham, Noel E. Thompson, Huagang Zhang
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Publication number: 20040080063Abstract: A synthetic microsphere having a low alkali metal oxide content and methods of forming the microsphere and its components are provided. The synthetic microsphere is substantially chemically inert and thus a suitable replacement for natural cenospheres, particularly in caustic environments such as cementitious mixtures. The synthetic microsphere can be made from an agglomerate precursor that includes an aluminosilicate material, such as fly ash, a blowing agent such as sugar, carbon black, and silicon carbide, and a binding agent. The synthetic microsphere is produced when the precursor is fired at a pre-determined temperature profile so as to form either solid or hollow synthetic microspheres depending on the processing conditions and/or components used.Type: ApplicationFiled: August 25, 2003Publication date: April 29, 2004Inventors: Amlan Datta, Hamid Hojaji, David L. Melmeth, James A. McFarlane, Thinh Pham, Noel E. Thompson, Huagang Zhang
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Publication number: 20040079260Abstract: A building product incorporating synthetic microspheres having a low alkali metal oxide content is provided. The synthetic microspheres are substantially chemically inert and thus a suitable replacement for natural cenospheres, particularly in caustic environments such as cementitious mixtures. The building product can have a cementitious matrix such as a fiber cement product. The synthetic microspheres can be incorporated as a low density additive and/or a filler for the building product and/or the like.Type: ApplicationFiled: August 25, 2003Publication date: April 29, 2004Inventors: Amlan Datta, Hamid Hojaji, David L. Melmeth, James A. McFarlane, Thinh Pham, Noel E. Thompson, Huagang Zhang