Patents by Inventor Esther Takeuchi
Esther Takeuchi 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: 11532806Abstract: Preparation, characterization, and an electrochemical study of Mg0.1V2O5 prepared by a novel sol-gel method with no high-temperature post-processing are disclosed. Cyclic voltammetry showed the material to be quasi-reversible, with improved kinetics in an acetonitrile-, relative to a carbonate-, based electrolyte. Galvanostatic test data under a C/10 discharge showed a delivered capacity >250 mAh/g over several cycles. Based on these results, a magnesium anode battery, as disclosed, would yield an average operating voltage ˜3.2 Volts with an energy density ˜800 mWh/g for the cathode material, making the newly synthesized material a viable cathode material for secondary magnesium batteries.Type: GrantFiled: August 28, 2020Date of Patent: December 20, 2022Assignee: The Research Foundation for The State University of New YorkInventors: Kenneth Takeuchi, Esther Takeuchi, Amy Marschilok
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Patent number: 11458216Abstract: The disclosure describes a method of reducing or preventing the growth of microbes on the surface of an object, wherein the object is of such material that it can act as a working electrode. The method comprises the steps of providing a counter electrode, and a reference electrode. The object is used as the working electrode. A first electrical current is passed through the working and counter electrodes. The first current through the counter electrode is varied such that a first electric potential of the working electrode is constant relative to the electric potential of the reference electrode. In some embodiments, a second electrical current is passed through the counter electrode such that a second electric potential of the working electrode is constant relative to the electric potential of the reference electrode.Type: GrantFiled: April 4, 2018Date of Patent: October 4, 2022Assignees: The Research Foundation for The State University of New York, Syracuse UniversityInventors: Mark Ehrensberger, Anthony A. Campagnari, Esther Takeuchi, Nicole Luke-Marshall, Jeremy Gilbert, Edward P. Furlani, Albert H. Titus, Amir Mokhtare
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Publication number: 20210083261Abstract: Preparation, characterization, and an electrochemical study of Mg0.1V2O5 prepared by a novel sol-gel method with no high-temperature post-processing are disclosed. Cyclic voltammetry showed the material to be quasi-reversible, with improved kinetics in an acetonitrile-, relative to a carbonate-, based electrolyte. Galvanostatic test data under a C/10 discharge showed a delivered capacity >250 mAh/g over several cycles. Based on these results, a magnesium anode battery, as disclosed, would yield an average operating voltage ˜3.2 Volts with an energy density ˜800 mWh/g for the cathode material, making the newly synthesized material a viable cathode material for secondary magnesium batteries.Type: ApplicationFiled: August 28, 2020Publication date: March 18, 2021Inventors: Kenneth Takeuchi, Esther Takeuchi, Amy Marschilok
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Patent number: 10763491Abstract: Preparation, characterization, and an electrochemical study of Mg0.1V2O5 prepared by a novel sol-gel method with no high-temperature post-processing are disclosed. Cyclic voltammetry showed the material to be quasi-reversible, with improved kinetics in an acetonitrile-, relative to a carbonate-, based electrolyte. Galvanostatic test data under a C/10 discharge showed a delivered capacity >250 mAh/g over several cycles. Based on these results, a magnesium anode battery, as disclosed, would yield an average operating voltage ˜3.2 Volts with an energy density ˜800 mWh/g for the cathode material, making the newly synthesized material a viable cathode material for secondary magnesium batteries.Type: GrantFiled: March 30, 2015Date of Patent: September 1, 2020Assignee: The Research Foundation for the State University of New YorkInventors: Kenneth Takeuchi, Esther Takeuchi, Amy Marschilok
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Publication number: 20190105414Abstract: The disclosure describes a method of reducing or preventing the growth of microbes on the surface of an object, wherein the object is of such material that it can act as a working electrode. The method comprises the steps of providing a counter electrode, and a reference electrode. The object is used as the working electrode. A first electrical current is passed through the working and counter electrodes. The first current through the counter electrode is varied such that a first electric potential of the working electrode is constant relative to the electric potential of the reference electrode. In some embodiments, a second electrical current is passed through the counter electrode such that a second electric potential of the working electrode is constant relative to the electric potential of the reference electrode.Type: ApplicationFiled: April 4, 2018Publication date: April 11, 2019Inventors: Mark Ehrensberger, Anthony A. Campagnari, Esther Takeuchi, Nicole Luke-Marshall, Jeremy Gilbert, Edward P. Furlani, Albert H. Titus, Amir Mokhtare
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Publication number: 20180205068Abstract: Preparation, characterization, and an electrochemical study of Mg0.1V2O5 prepared by a novel sol-gel method with no high-temperature post-processing are disclosed. Cyclic voltammetry showed the material to be quasi-reversible, with improved kinetics in an acetonitrile-, relative to a carbonate-, based electrolyte. Galvanostatic test data under a C/10 discharge showed a delivered capacity >250 mAh/g over several cycles. Based on these results, a magnesium anode battery, as disclosed, would yield an average operating voltage ˜3.2 Volts with an energy density ˜800 mWh/g for the cathode material, making the newly synthesized material a viable cathode material for secondary magnesium batteries.Type: ApplicationFiled: March 30, 2015Publication date: July 19, 2018Inventors: Kenneth Takeuchi, Esther Takeuchi, Amy Marschilok
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Patent number: 9616142Abstract: The invention describes a method of reducing or preventing the growth of microbes on the surface of an object, wherein the object is of such material that it can act as a working electrode. The method comprises the steps of providing a counter electrode, and a reference electrode. The object is used as the working electrode. Electrical current is passed through the working and counter electrodes. The current through the counter electrode is varied such that the electric potential of the working electrode is constant relative to the electric potential of the reference electrode. Also described is an apparatus for reducing or preventing microbes on an object using a potentiostatic device.Type: GrantFiled: November 13, 2014Date of Patent: April 11, 2017Assignees: The Research Foundation for The State University of New York, Syracuse UniversityInventors: Mark Ehrensberger, Anthony A. Campagnari, Esther Takeuchi, Nicole Luke-Marshall, Jeremy Gilbert
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Publication number: 20170000918Abstract: Describe is an apparatus for reducing or preventing the growth of microbes on the surface of an object, wherein the object is of such material that it can act as a working electrode. The apparatus comprises counter electrode, a reference electrode, and an electrical lead for attachment to the object such that the object can be used as the working electrode. A potentiostatic device is configured to pass electrical current through the working and counter electrodes. The current through the counter electrode is varied such that the electric potential of the working electrode is constant relative to the electric potential of the reference electrode.Type: ApplicationFiled: September 15, 2016Publication date: January 5, 2017Inventors: Mark EHRENSBERGER, Anthony A. CAMPAGNARI, Esther TAKEUCHI, Nicole LUKE-MARSHALL, Jeremy GILBERT
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Publication number: 20150076000Abstract: The invention describes a method of reducing or preventing the growth of microbes on the surface of an object, wherein the object is of such material that it can act as a working electrode. The method comprises the steps of providing a counter electrode, and a reference electrode. The object is used as the working electrode. Electrical current is passed through the working and counter electrodes. The current through the counter electrode is varied such that the electric potential of the working electrode is constant relative to the electric potential of the reference electrode. Also described is an apparatus for reducing or preventing microbes on an object using a potentiostatic device.Type: ApplicationFiled: April 22, 2013Publication date: March 19, 2015Inventors: Mark Ehrensberger, Anthony A. Campagnari, Esther Takeuchi, Nicole Luke-Marshall
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Publication number: 20150073491Abstract: The invention describes a method of reducing or preventing the growth of microbes on the surface of an object, wherein the object is of such material that it can act as a working electrode. The method comprises the steps of providing a counter electrode, and a reference electrode. The object is used as the working electrode. Electrical current is passed through the working and counter electrodes. The current through the counter electrode is varied such that the electric potential of the working electrode is constant relative to the electric potential of the reference electrode. Also described is an apparatus for reducing or preventing microbes on an object using a potentiostatic device.Type: ApplicationFiled: November 13, 2014Publication date: March 12, 2015Inventors: Mark EHRENSBERGER, Anthony A. CAMPAGNARI, Esther TAKEUCHI, Nicole LUKE-MARSHALL, Jeremy GILBERT
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Patent number: 8268466Abstract: A lithium/fluorinated carbon electrochemical cell having the CFx material supported on a titanium current collector screen sputter coated with a noble metal is described. The gold, iridium, palladium, platinum, rhodium and ruthenium-coated titanium current collector provides the cell with higher rate capability, even after exposure to high temperatures, in comparison to cells of a similar chemistry having the CFx contacted to a titanium current collector painted with a carbon coating.Type: GrantFiled: February 27, 2006Date of Patent: September 18, 2012Assignee: Greatbatch Ltd.Inventors: Esther Takeuchi, Bruce Platt, Sally Ann Smesko, Eric Ziarniak, Mark Roy
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Publication number: 20100196765Abstract: The use of an increased cathode weight and thickness or basis weight in a primary electrochemical cell for the purpose of reducing DC resistance (Rdc) is described. This is particularly important when the cell is subjected to high rate discharge conditions of the type typically required for medical device applications, such as activating a cardiac defibrillator. A preferred couple is of a lithium/silver vanadium oxide (Li/SVO) cell or a lithium/copper silver vanadium oxide (Li/CSVO) cell. Reducing cell Rdc by increasing basis weight has the added benefit of increasing the cell's energy density through comparatively greater amounts of active cathode material in a give casing volume.Type: ApplicationFiled: October 26, 2005Publication date: August 5, 2010Applicant: GREATBATCH, INC.Inventors: Marcus Palazzo, Esther Takeuchi, Randolph Leising
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Patent number: 7646170Abstract: A method for providing an elective replacement indicator (ERI) voltage for a first implantable electrochemical cell, comprising the steps of providing a second, substantially identical exemplary electrochemical cell; repeatedly connecting and disconnecting the second cell to a sequence of at least three loads, thereby discharging the second cell from a state of about zero percent to at least about ninety percent depth-of-discharge; generating cell voltage vs.Type: GrantFiled: May 11, 2006Date of Patent: January 12, 2010Assignee: Greatbatch Ltd.Inventors: Hong Gan, Robert Rubino, Yuemin Zhang, Esther Takeuchi
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Publication number: 20080038643Abstract: The current invention describes a lithium/carbon monofluoride (Li/CFx) cell capable of delivering sufficient power to supply an ICD or similar demanding device. The cell exhibits the typical excellent long-term stability and predictability of the CFx system, as well as its high energy density (greater than about 300 Ah/cc, greater than about 600 Wh/cc). Additionally, the cell is capable of delivering about 0.5 W/cc of cathode volume for greater than 5 seconds with a voltage above 1.70 V (FIG. 1). The following invention embodiments can be applied individually or in conjunction with each other.Type: ApplicationFiled: January 30, 2007Publication date: February 14, 2008Applicant: Greatbatch Ltd.Inventors: Paul Krehl, Steven Davis, Robert Rubino, Hong Gan, Esther Takeuchi
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Publication number: 20070279006Abstract: A method for determining whether a cell will experience unacceptable voltage delay later in its discharge life before it is incorporated into a device as its power source is described. As is standard practice, the cell is first subjected to a constant resistance load discharge followed by extended elevated temperature storage and an acceptance pulse discharge. This typically depletes the cell of about 1% to 3% of its theoretical discharge capacity. According to the present invention, the cell is again stored at an elevated temperature for an extended period followed by a second pulse discharge. This second pulse discharge is to ferret out any cell that may end up experiencing unacceptable voltage delay later in its discharge life.Type: ApplicationFiled: January 10, 2005Publication date: December 6, 2007Inventors: Esther Takeuchi, Hong Gan, Steven Davis, Joseph Lehnes
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Publication number: 20070281207Abstract: The prevention of lithium clusters from bridging between the negative and positive portions of a cell during discharge is described. This is done by matching the pulse-discharged capacity of a primary lithium cell powering a therapy device to one where should lithium clusters form, the total lithium cluster surface area will be less than the nominal gap distance between a positive polarity member and a negative polarity member.Type: ApplicationFiled: December 9, 2004Publication date: December 6, 2007Inventors: Esther Takeuchi, Randolph Leising
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Publication number: 20070072075Abstract: Improvements in the performance of lithium electrochemical cells comprising a first cathode active material of a relatively high energy density but of a relatively low rate capability, for example CFx, contacted to one side of a current collector and with a second cathode active material having a relatively low energy density but of a relatively high rate capability, for example SVO, contacted to the opposite current collector side are described. An exemplary cathode has the configuration: SVO/first current collector/CFx/second current collector/SVO, and wherein the anodic coulombic capacity does not exceed the total coulombic capacities of the SVO and CFx by greater than 25%. Manganese oxide (MnO2) is another typically used cathode active material in lieu of SVO, and the present invention is applicable to lithium cells of that system as well.Type: ApplicationFiled: September 26, 2006Publication date: March 29, 2007Applicant: Greatbatch Ltd.Inventors: Hong Gan, Robert Rubino, Esther Takeuchi
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Publication number: 20070059599Abstract: A new design for a cathode having a configuration of: SVO/first current collector/CFx/second current collector/SVO is described. The two cathode current collectors are vertically aligned one on top of the other in a middle region or zone of the cathode. This coincides to where a winding mandrel will be positioned to form a wound electrode assembly with an anode. The overlapping region of the two current collectors helps balance the expansion forces of the exemplary SVO and CFx active material layers. This, in turn, helps maintain a planar cathode that is more amenable to downstream processing. The use of two current collectors on opposite sides of an intermediate cathode active material also provides for enhanced reliability when cathodes are wound from the center as they lend structural integrity to outer portions of the wind.Type: ApplicationFiled: September 15, 2006Publication date: March 15, 2007Applicant: Greatbatch Ltd.Inventors: Robert Rubino, Hong Gan, Esther Takeuchi
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Publication number: 20070031731Abstract: The current invention relates to the preparation of an improved cathode active material for non-aqueous lithium electrochemical cell. In particular, the cathode active material comprises ?-phase silver vanadium oxide prepared by using a ?-phase silver vanadium oxide starting material. The reaction of ?-phase SVO with a silver salt produces the novel ?-phase SVO possessing a lower surface area than ?-phase SVO produces from vanadium oxide (V2O5) and a similar silver salt as starting materials. Consequently, the low surface area ?-phase SVO material provides an advantage in greater long-term stability in pulse dischargeable cells.Type: ApplicationFiled: September 28, 2006Publication date: February 8, 2007Applicant: Greatbatch Ltd.Inventors: Randolph Leising, Esther Takeuchi
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Publication number: 20060141340Abstract: A lithium/fluorinated carbon electrochemical cell having the CFx material supported on a titanium current collector screen sputter coated with a noble metal is described. The gold, iridium, palladium, platinum, rhodium and ruthenium-coated titanium current collector provides the cell with higher rate capability, even after exposure to high temperatures, in comparison to cells of a similar chemistry having the CFx contacted to a titanium current collector painted with a carbon coating.Type: ApplicationFiled: February 27, 2006Publication date: June 29, 2006Applicant: WILSON GREATBATCH TECHNOLOGIES, INC.Inventors: Esther Takeuchi, Bruce Platt, Sally Smesko, Eric Ziarniak, Mark Roy