Patents by Inventor Samad A. Firdosy

Samad A. Firdosy 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: 20220266338
    Abstract: Elements formed from magnetic materials and their methods of manufacture are presented. Magnetic materials include a magnetic alloy material, such as, for example, an Fe-Co alloy material (e.g., the Fe-Co-V alloy Hiperco-50(R)). The magnetic alloy materials may comprise a powdered material suitable for use in additive manufacturing techniques, such as, for example direct energy deposition or laser powder bed fusion. Manufacturing techniques include the use of variable deposition time and energy to control the magnetic and structural properties of the materials by altering the microstructure and residual stresses within the material. Manufacturing techniques also include post deposition processing, such as, for example, machining and heat treating. Heat treating may include a multi-step process during which the material is heated, held and then cooled in a series of controlled steps such that a specific history of stored internal energy is created within the material.
    Type: Application
    Filed: May 9, 2022
    Publication date: August 25, 2022
    Applicant: California Institute of Technology
    Inventors: Samad A. Firdosy, Robert P. Dillon, Ryan W. Conversano, John Paul C. Borgonia, Andrew A. Shapiro-Scharlotta, Bryan W. McEnerney, Adam Herrmann
  • Patent number: 11400613
    Abstract: A cutting tool with a plurality of cutting elements connected to a support structure wherein a portion of the support structure is configured to flex or bend based on the rotational frequency of the cutting tool. The rotational frequency of the cutting tool is a product of the design and composition of the tool.
    Type: Grant
    Filed: March 2, 2020
    Date of Patent: August 2, 2022
    Assignee: California Institute of Technology
    Inventors: Douglas C. Hofmann, Morgan Hendry, Samad A. Firdosy, Andre M. Pate, Christopher R. Yahnker, Cecily M. Sunday
  • Publication number: 20220203442
    Abstract: Systems and methods of additively manufacturing multi-material electromagnetic shields are described. Additive manufacturing processes use co-deposition to incorporate multiple materials and/or microstructures selected to achieve specified shield magnetic properties. Geometrically complex shields can be manufactured with alternating shielding materials optimized for the end use application. The microstructures of the printed shields can be tuned by optimizing the print parameters.
    Type: Application
    Filed: August 5, 2021
    Publication date: June 30, 2022
    Applicant: California Institute of Technology
    Inventors: Samad A. Firdosy, Robert P. Dillon, Nicholas E. Ury, Katherine Dang, Joshua Berman, Pablo Narvaez, Vilupanur A. Ravi, John Paul Castelo Borgonia, Joelle T. Cooperrider, Bryan W. McEnerney, Andrew A. Shapiro-Scharlotta
  • Patent number: 11351613
    Abstract: Elements formed from magnetic materials and their methods of manufacture are presented. Magnetic materials include a magnetic alloy material, such as, for example, an Fe—Co alloy material (e.g., the Fe—Co—V alloy Hiperco-50®). The magnetic alloy materials may comprise a powdered material suitable for use in additive manufacturing techniques, such as, for example direct energy deposition or laser powder bed fusion. Manufacturing techniques include the use of variable deposition time and energy to control the magnetic and structural properties of the materials by altering the microstructure and residual stresses within the material. Manufacturing techniques also include post deposition processing, such as, for example, machining and heat treating. Heat treating may include a multi-step process during which the material is heated, held and then cooled in a series of controlled steps such that a specific history of stored internal energy is created within the material.
    Type: Grant
    Filed: June 3, 2019
    Date of Patent: June 7, 2022
    Assignee: California Institute of Technology
    Inventors: Samad A. Firdosy, Robert P. Dillon, Ryan W. Conversano, John Paul C. Borgonia, Andrew A. Shapiro-Scharlotta, Bryan W. McEnerney, Adam Herrmann
  • Publication number: 20200284146
    Abstract: A cutting tool with a cutting region and a connecting support region where the support region is designed to connect to an external motor assembly. The cutting tool is also has a porous region that is integrated within a portion of the tool such that as the tool cuts material the porous region can allow samples of the cut material to permeate into an internal chamber of the tool. Once in the internal chamber material samples can be analyzed in-situ for direct composition analysis.
    Type: Application
    Filed: March 9, 2020
    Publication date: September 10, 2020
    Applicant: California Institute of Technology
    Inventors: Christopher R. Yahnker, Mark S. Anderson, Douglas C. Hofmann, Morgan Hendry, Samad A. Firdosy, Andre M. Pate, Luis C.F. Tosi
  • Publication number: 20200282582
    Abstract: A cutting tool with a plurality of cutting elements connected to a support structure wherein a portion of the support structure is configured to flex or bend based on the rotational frequency of the cutting tool. The rotational frequency of the cutting tool is a product of the design and composition of the tool.
    Type: Application
    Filed: March 2, 2020
    Publication date: September 10, 2020
    Applicant: California Institute of Technology
    Inventors: Douglas C. Hofmann, Morgan Hendry, Samad A. Firdosy, Andre M. Pate, Christopher R. Yahnker, Cecily M. Sunday
  • Publication number: 20190366435
    Abstract: Elements formed from magnetic materials and their methods of manufacture are presented. Magnetic materials include a magnetic alloy material, such as, for example, an Fe—Co alloy material (e.g., the Fe—Co—V alloy Hiperco-50®). The magnetic alloy materials may comprise a powdered material suitable for use in additive manufacturing techniques, such as, for example direct energy deposition or laser powder bed fusion. Manufacturing techniques include the use of variable deposition time and energy to control the magnetic and structural properties of the materials by altering the microstructure and residual stresses within the material. Manufacturing techniques also include post deposition processing, such as, for example, machining and heat treating. Heat treating may include a multi-step process during which the material is heated, held and then cooled in a series of controlled steps such that a specific history of stored internal energy is created within the material.
    Type: Application
    Filed: June 3, 2019
    Publication date: December 5, 2019
    Applicant: California Institute of Technology
    Inventors: Samad A. Firdosy, Robert P. Dillon, Ryan W. Conversano, John Paul C. Borgonia, Andrew A. Shapiro-Scharlotta, Bryan W. McEnerney, Adam Herrmann
  • Patent number: 10017687
    Abstract: The present invention provides a method of preparing a proppant material by heating a reaction mixture comprising a plurality of oxides in a reactive atmosphere to a temperature above the melting point of the reaction mixture to form a melt, and then allowing the melt to solidify in a mold in the form of spherical particles. The present invention also provides a method of preparing a proppant material by heating a reaction mixture comprising a plurality of oxides and one or more additives in a reactive atmosphere to a temperature below the melting point of the reaction mixture to form a powder including one or more reaction products, and then processing the powder to form spherical particles. The present invention also provides a proppant material including spherical particles characterized by a specific gravity of about 1.0 to 3.0 and a crush strength of at least about 10,000 psi.
    Type: Grant
    Filed: May 14, 2015
    Date of Patent: July 10, 2018
    Assignee: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Vilupanur A. Ravi, Samad A. Firdosy, Jean-Pierre Fleurial, Sabah K. Bux, Andrew Kindler
  • Patent number: 9722163
    Abstract: A thermoelectric power generation device is disclosed using one or more mechanically compliant and thermally and electrically conductive layers at the thermoelectric material interfaces to accommodate high temperature differentials and stresses induced thereby. The compliant material may be metal foam or metal graphite composite (e.g. using nickel) and is particularly beneficial in high temperature thermoelectric generators employing Zintl thermoelectric materials. The compliant material may be disposed between the thermoelectric segments of the device or between a thermoelectric segment and the hot or cold side interconnect of the device.
    Type: Grant
    Filed: June 7, 2013
    Date of Patent: August 1, 2017
    Assignee: California Institute of Technology
    Inventors: Samad A. Firdosy, Billy Chun-Yip Li, Vilupanur A. Ravi, Jean-Pierre Fleurial, Thierry Caillat, Harut Anjunyan
  • Patent number: 9640746
    Abstract: The present invention provides a composite thermoelectric material. The composite thermoelectric material can include a semiconductor material comprising a rare earth metal. The atomic percent of the rare earth metal in the semiconductor material can be at least about 20%. The composite thermoelectric material can further include a metal forming metallic inclusions distributed throughout the semiconductor material. The present invention also provides a method of forming this composite thermoelectric material.
    Type: Grant
    Filed: January 22, 2014
    Date of Patent: May 2, 2017
    Assignee: California Institute of Technology
    Inventors: James M. Ma, Sabah K. Bux, Jean-Pierre Fleurial, Vilupanur A. Ravi, Samad A. Firdosy, Kurt Star, Richard B. Kaner
  • Publication number: 20170077379
    Abstract: A thermoelectric power generation technique is disclosed using one or more mechanically compliant and thermally and electrically conductive layers at the thermoelectric material interfaces to accommodate high temperature differentials and stresses induced thereby. The compliant material may be metal foam or metal graphite composite (e.g. using nickel) and is particularly beneficial in high temperature thermoelectric generators employing Zintl thermoelectric materials. The compliant material may be disposed between the thermoelectric segments of the device or between a thermoelectric segment and the hot or cold side interconnect of the device.
    Type: Application
    Filed: November 21, 2016
    Publication date: March 16, 2017
    Applicant: California Institute of Technology
    Inventors: Samad A. Firdosy, Billy Chun-Yip Li, Vilupanur A. Ravi, Jean-Pierre Fleurial, Thierry Caillat, Harut Anjunyan
  • Publication number: 20170066962
    Abstract: The disclosure herein includes methods of preparing ceramic beads, useful as proppant materials, by mixing ceramic precursors, such as slag, fly ash, or aluminum dross, forming bead precursors from the mixture, and heating the bead precursors to drive a chemical reaction between the ceramic precursors to form the ceramic beads. The resultant ceramic beads may be generally spherical particles that are characterized by diameters of about 0.1 to 2 mm, a diametral strength of at least about 100 MPa, and a specific gravity of about 1.0 to 3.0. A coating process may optionally be used to increase a diametral strength of a proppant material. A sieving process may optionally be used to obtain a smaller range of sizes of proppant materials.
    Type: Application
    Filed: September 9, 2016
    Publication date: March 9, 2017
    Inventors: Vilupanur A. Ravi, Samad A. Firdosy, Sabah K. Bux, Jean-Pierre Fleurial, Shiao-Pin S. Yen, Andrew Kindler, Su C. Chi, Margie L. Homer, Bryan W. McEnerney, Pandurang Kulkarni, Desikan Sundararajan
  • Publication number: 20160111619
    Abstract: The present invention provides a composite thermoelectric material. The composite thermoelectric material can include a semiconductor material comprising a rare earth metal. The atomic percent of the rare earth metal in the semiconductor material can be at least about 20%. The composite thermoelectric material can further include a metal forming metallic inclusions distributed throughout the semiconductor material. The present invention also provides a method of forming this composite thermoelectric material.
    Type: Application
    Filed: January 22, 2014
    Publication date: April 21, 2016
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: James M. Ma, Sabah K. Bux, Jean-Pierre Fleurial, Vilupanur A. Ravi, Samad A. Firdosy, Kurt Star, Richard B. Kaner
  • Publication number: 20150357541
    Abstract: A thermoelectric power generation device is disclosed using one or more mechanically compliant and thermally and electrically conductive layers at the thermoelectric material interfaces to accommodate high temperature differentials and stresses induced thereby. The compliant material may be metal foam or metal graphite composite (e.g. using nickel) and is particularly beneficial in high temperature thermoelectric generators employing Zintl thermoelectric materials. The compliant material may be disposed between the thermoelectric segments of the device or between a thermoelectric segment and the hot or cold side interconnect of the device.
    Type: Application
    Filed: June 7, 2013
    Publication date: December 10, 2015
    Applicant: CALIFORNIA INSTITUTE OF TECHNOLOGY
    Inventors: Samad A. Firdosy, Billy Chun-Yip Li, Vilupanur A. Ravi, Jean-Pierre Fleurial, Thierry Caillat, Harut Anjunyan
  • Publication number: 20150329769
    Abstract: The present invention provides a method of preparing a proppant material by heating a reaction mixture comprising a plurality of oxides in a reactive atmosphere to a temperature above the melting point of the reaction mixture to form a melt, and then allowing the melt to solidify in a mold in the form of spherical particles. The present invention also provides a method of preparing a proppant material by heating a reaction mixture comprising a plurality of oxides and one or more additives in a reactive atmosphere to a temperature below the melting point of the reaction mixture to form a powder including one or more reaction products, and then processing the powder to form spherical particles. The present invention also provides a proppant material including spherical particles characterized by a specific gravity of about 1.0 to 3.0 and a crush strength of at least about 10,000 psi.
    Type: Application
    Filed: May 14, 2015
    Publication date: November 19, 2015
    Inventors: Vilupanur A. Ravi, Samad A. Firdosy, Jean-Pierre Fleurial, Sabah K. Bux, Andrew Kindler
  • Publication number: 20100243018
    Abstract: A thermoelectric power generation device using molybdenum metallization to a Zintl thermoelectric material in a thermoelectric power generation device operating at high temperature, e.g. at or above 1000° C., is disclosed. The Zintl thermoelectric material may comprise Yb14MnSb11. A thin molybdenum metallization layer of approximately 5 microns or less may be employed. The thin molybdenum layer may be applied in a foil under high pressure, e.g. 1800 psi, at high temperature, e.g. 1000° C. The metallization layer may then be bonded or brazed to other components, such as heat collectors or current carrying electrodes, of the thermoelectric power generation device.
    Type: Application
    Filed: March 29, 2010
    Publication date: September 30, 2010
    Applicant: California Institute of Technology
    Inventors: Billy Chun-Yip Li, Erik J. Brandon, Vilupanur A. Ravi, Thierry Caillat, Richard C. Ewell, Samad A. Firdosy, Jeff S. Sakamoto