Patents by Inventor Anna NAKANO

Anna NAKANO 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: 20230365422
    Abstract: Embodiments relate to methods for generating selected materials from a natural brine. A natural brine comprising at least a portion of a selected material is heated. CO2 is added and mixes with the natural brine forming a mixture such that the CO2/P is a first predetermined value. The mixture is held so that impurities in the natural brine precipitate as solids leaving a second brine substantially comprising the selected material. The second brine is heated. CO2 gas is injected into the second brine, mixing so that the CO2/P is a second predetermined value. The mixture is held so that the selected material precipitates out and are removed.
    Type: Application
    Filed: July 24, 2023
    Publication date: November 16, 2023
    Inventors: Jinichiro N. Nakano, Anna Nakano, James P. Bennett
  • Patent number: 11708279
    Abstract: Embodiments relate to methods for generating selected materials from a natural brine, where the natural brine is sea water, saline water, fresh water, synthetic solutions, or industrial liquid wastes. A natural brine comprising at least a portion of a selected material is heated. CO2 is added and mixes with the natural brine forming a mixture such that the CO2/P is a first predetermined value. The mixture is held so that impurities in the natural brine precipitate as solids leaving a second brine substantially comprising the selected material. The second brine is heated. CO2 gas is injected into the second brine, mixing so that the CO2/P is a second predetermined value. The mixture is held so that the selected material precipitates out and are removed.
    Type: Grant
    Filed: August 12, 2019
    Date of Patent: July 25, 2023
    Assignee: Energy, United States Department of
    Inventors: Jinichiro Nakano, Anna Nakano, James P. Bennett
  • Publication number: 20210246522
    Abstract: Methods for controlling the position of a lance supplying oxygen to a furnace containing a bath of molten metal. The methods include the steps of continuously detecting actual conditions associated with the furnace, continuously comparing the actual conditions to target parameters corresponding to the actual conditions, and continuously adjusting the position of the lance with respect to the furnace based on the comparison of the actual conditions to the target parameters.
    Type: Application
    Filed: April 23, 2021
    Publication date: August 12, 2021
    Inventors: Jinchiro Nakano, Anna Nakano
  • Publication number: 20210047196
    Abstract: Embodiments relate to methods for generating selected materials from a natural brine. A natural brine comprising at least a portion of a selected material is heated. CO2 is added and mixes with the natural brine forming a mixture such that the CO2/P is a first predetermined value. The mixture is held so that impurities in the natural brine precipitate as solids leaving a second brine substantially comprising the selected material. The second brine is heated. CO2 gas is injected into the second brine, mixing so that the CO2/P is a second predetermined value. The mixture is held so that the selected material precipitates out and are removed.
    Type: Application
    Filed: August 12, 2019
    Publication date: February 18, 2021
    Inventors: Jinichiro N. Nakano, Anna Nakano, James P. Bennett
  • Patent number: 10358694
    Abstract: The disclosure relates to a method for concentrating rare earth elements (REEs) from a coal byproduct. The method includes mixing the coal byproduct input with aluminum phosphate, sulfur and/or other compounds used as an additive; heating the coal byproduct input in air for a period of 3 minutes or longer at a temperature above a liquid starting temperature of the coal byproduct input, forming a molten coal byproduct; cooling the molten coal byproduct at a rate slower than critical glass transition cooling rate of the melt, forming REE phosphate product; heating the coal byproduct input above the liquid starting temperature of the coal byproduct after REE phosphate product is formed; and cooling the coal byproduct input at a rate faster than the critical glass transition cooling rate of the melt, minimizing forming unwanted solids.
    Type: Grant
    Filed: October 23, 2017
    Date of Patent: July 23, 2019
    Assignee: U.S. Department of Energy
    Inventors: Jinichiro Nakano, Anna Nakano, James P Bennett
  • Patent number: 10323298
    Abstract: A single-heating stage method for reclaiming or recovering metals like nickel and vanadium from a petroleum waste byproduct has three steps: melting the petroleum waste byproduct in a reducing atmosphere, generating agglomerated metal in the melted byproduct, and lifting the agglomerated metal to an exposed surface of the melted byproduct. The metal precipitates out of the molten byproduct, agglomerates into a separate portion, and rises to an exposed surface of the melted petroleum waste byproduct even though the metal may have greater density than the molten petroleum waste byproduct. The original petroleum waste byproduct stratifies into a byproduct remnant and the agglomerated metal disk. The agglomerated metal disk is separable from the byproduct remnant and may be additionally separated into constituent metals in those embodiments with multiple metals in the disk.
    Type: Grant
    Filed: February 9, 2017
    Date of Patent: June 18, 2019
    Assignee: U.S. Department of Energy
    Inventors: Jinichiro Nakano, Anna Nakano, James P. Bennett
  • Patent number: 10315926
    Abstract: Embodiments relate to methods, systems And apparatus tor generating lithium from brine. The brine is heated in a first vessel to greater than 260° C. and CO2 gas is injected mixing with the brine such that the CO2/P is greater than 18 g/atm. The brine is held at greater than 18 g/atm for longer than 20 minutes so that any impurities precipitate as solids leaving only lithium ions and chlorine ions. The brine is moved to a second vessel screening out solid precipitates leaving a brine containing only chlorine and lithium. CO2 gas is injected and mixed with the brine at 260° C. so that the CO2/P is greater than 200 g/atm. The brine is held at greater than 200 g/atm for longer than 20 minutes suppressing the chlorine as dissolved ions while lithium precipitates out as lithium carbonate. The lithium carbonate precipitate is removed from the brine solution.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: June 11, 2019
    Assignee: U.S. Department of Energy
    Inventors: Jinichiro Nakano, Anna Nakano, James P. Bennett
  • Publication number: 20190119785
    Abstract: The disclosure relates to a method for concentrating rare earth elements (REEs) from a coal byproduct. The method includes mixing the coal byproduct input with aluminum phosphate, sulfur and/or other compounds used as an additive; heating the coal byproduct input in air for a period of 3 minutes or longer at a temperature above a liquid starting temperature of the coal byproduct input, forming a molten coal byproduct; cooling the molten coal byproduct at a rate slower than critical glass transition cooling rate of the melt, forming REE phosphate product; heating the coal byproduct input above the liquid starting temperature of the coal byproduct after REE phosphate product is formed; and cooling the coal byproduct input at a rate faster than the critical glass transition cooling rate of the melt, minimizing forming unwanted solids.
    Type: Application
    Filed: October 23, 2017
    Publication date: April 25, 2019
    Inventors: Jinichiro Nakano, Anna Nakano, James P. Bennett
  • Publication number: 20180222761
    Abstract: Embodiments relate to methods, systems And apparatus tor generating lithium from brine. The brine is heated in a first vessel to greater than 260° C. and CO2 gas is injected mixing with the brine such that the CO2/P is greater than 18 g/atm. The brine is held at greater than 18 g/atm for longer than 20 minutes so that any impurities precipitate as solids leaving only lithium ions and chlorine ions. The brine is moved to a second vessel screening out solid precipitates leaving a brine containing only chlorine and lithium. CO2 gas is injected and mixed with the brine at 260° C. so that the CO2/P is greater than 200 g/atm. The brine is held at greater than 200 g/atm for longer than 20 minutes suppressing the chlorine as dissolved ions while lithium precipitates out as lithium carbonate. The lithium carbonate precipitate is removed from the brine solution.
    Type: Application
    Filed: October 10, 2017
    Publication date: August 9, 2018
    Inventors: Jinichiro Nakano, Anna Nakano, James P. Bennett
  • Publication number: 20180223391
    Abstract: A single-heating stage method for reclaiming or recovering metals like nickel and vanadium from a petroleum waste byproduct has three steps: melting the petroleum waste byproduct in a reducing atmosphere, generating agglomerated metal in the melted byproduct, and lifting the agglomerated metal to an exposed surface of the melted byproduct. The metal precipitates out of the molten byproduct, agglomerates into a separate portion, and rises to an exposed surface of the melted petroleum waste byproduct even though the metal may have greater density than the molten petroleum waste byproduct. The original petroleum waste byproduct stratifies into a byproduct remnant and the agglomerated metal disk. The agglomerated metal disk is separable from the byproduct remnant and may be additionally separated into constituent metals in those embodiments with multiple metals in the disk.
    Type: Application
    Filed: February 9, 2017
    Publication date: August 9, 2018
    Applicant: United States Department of Energy
    Inventors: James P. Bennett, Jinichiro Nakano, Anna Nakano
  • Patent number: 9878280
    Abstract: The present disclosure is directed to a method for enriching an inlet air stream utilizing a number of enrichment sub-units connected in series, where each enrichment sub-unit conducts both a dissolution and degasification cycle. Each enrichment sub-unit comprises a compressor, an aeration unit, a deaeration unit, and a pump for the recirculation of water between the aeration and deaeration units. The methodology provides a manner in which the relationship between the respective Henry's coefficients of the oxygen and nitrogen in water may be exploited to enrich the O2 volume percent and diminish the N2 volume percent over repeated dissolution and degasification cycles. By utilizing a number of enrichment sub-units connected in series, the water contained in each enrichment sub-unit acts to progressively increase the O2 volume percent. Additional enrichment sub-units may be added and utilized until the O2 volume percent equals or exceeds a target O2 volume percent.
    Type: Grant
    Filed: January 6, 2015
    Date of Patent: January 30, 2018
    Assignee: U.S. Department of Energy
    Inventors: Anna Nakano, Jinichiro Nakano, James P. Bennett
  • Patent number: 9840756
    Abstract: Embodiments relate to systems and methods for regenerating and recirculating a CO, H2 or combinations thereof utilized for metal oxide reduction in a reduction furnace. The reduction furnace receives the reducing agent, reduces the metal oxide, and generates an exhaust of the oxidized product. The oxidized product is transferred to a mixing vessel, where the oxidized product, a calcium oxide, and a vanadium oxide interact to regenerate the reducing agent from the oxidized product. The regenerated reducing agent is transferred back to the reduction furnace for continued metal oxide reductions.
    Type: Grant
    Filed: July 2, 2015
    Date of Patent: December 12, 2017
    Assignee: U.S. Department of Energy
    Inventors: Jinichiro Nakano, James P. Bennett, Anna Nakano
  • Patent number: 9404167
    Abstract: Method for producing nano sized ferrite particles from a metallurgical slag, the method including the steps of: a) providing a ladle with a molten slag including CaO, SiO2, FeO, and at least one of MnO, Cr2O3, V2O3. b) oxidizing the slag at a temperature in the interval of 1573K-1773K (1300-1500° C.) for 10-90 minutes, c) removing at least a portion of the slag from the ladle d) cooling the removed slag portion to a temperature below 373K (100° C.), e) extracting nano sized manganese ferrite and/or chromium ferrite and/or vanadium ferrite particles from the cooled portion.
    Type: Grant
    Filed: September 7, 2011
    Date of Patent: August 2, 2016
    Assignee: Jernkontoret
    Inventors: Anna Nakano, Seshadri Seetharaman, Volodymyr Shatokha
  • Publication number: 20150307957
    Abstract: Method for producing nano sized ferrite particles from a metallurgical slag, the method including the steps of: a) providing a ladle with a molten slag including CaO, SiO2, FeO, and at least one of MnO, Cr2O3, V2O3. b) oxidizing the slag at a temperature in the interval of 1573K-1773K (1300-1500° C.) for 10-90 minutes, c) removing at least a portion of the slag from the ladle d) cooling the removed slag portion to a temperature below 373K (100° C.), e) extracting nano sized manganese ferrite and/or chromium ferrite and/or vanadium ferrite particles from the cooled portion.
    Type: Application
    Filed: September 7, 2011
    Publication date: October 29, 2015
    Applicant: JERNKONTORET
    Inventors: Anna NAKANO, Seshadri SEETHARAMAN, Volodymyr SHATOKHA