Patents Assigned to Composite Material Technology, Inc.
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Patent number: 10403902Abstract: An electrically active electrode material for use with a lithium ion cell, a lithium ion cell, and a method for forming the electrochemically active material electrode material are described. The electrode material is in the form of a sheet or mat formed of a valve metal material formed of filaments of a valve metal not larger than about 10 microns in cross section, and coated with an electrochemically active material such as silicon nanoparticles.Type: GrantFiled: May 16, 2016Date of Patent: September 3, 2019Assignee: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventors: James Wong, David Frost
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Patent number: 10230110Abstract: An improved structure of nano-scaled and nanostructured Si particles is provided for use as anode material for lithium ion batteries. The Si particles are prepared as a composite coated with MgO and metallurgically bonded over a conductive refractory valve metal support structure.Type: GrantFiled: September 1, 2017Date of Patent: March 12, 2019Assignee: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventors: James Wong, David Frost
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Patent number: 10192688Abstract: Provided is an anode for an electrolytic device formed of a substantially uniform mixture of elongated elements with capacitor grade tantalum powders of tantalum metal. Also provided is a method for forming an anode or cathode for an electrolytic device formed of a substantially uniform mixture of elongated elements of a valve metal and a conductive powder metal.Type: GrantFiled: August 11, 2017Date of Patent: January 29, 2019Assignee: COMPOSITE MATERIAL TECHNOLOGY, INC.Inventor: James Wong
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Patent number: 9498316Abstract: A tissue implant member for implanting in living tissue is provided. The implant is formed of an open structured tantalum filament having a cross-sectional size of less than about 250 microns.Type: GrantFiled: September 17, 2015Date of Patent: November 22, 2016Assignee: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventor: James Wong
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Patent number: 9155605Abstract: A tissue implant member for implanting in living tissue is provided. The implant is formed of an open structured tantalum filament having a cross-sectional size of less than about 250 microns.Type: GrantFiled: July 10, 2014Date of Patent: October 13, 2015Assignee: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventor: James Wong
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Patent number: 9028584Abstract: The method for forming a 3-D metal object by 3-D printing or injection molding comprising providing as a feed material metal particles formed by establishing multiple metal components in a primary billet of a ductile material, working the primary billet through a series of reduction steps to form the components into elongated elements, leaching the ductile material from the elongated elements and reducing the length to short uniform lengths.Type: GrantFiled: August 8, 2013Date of Patent: May 12, 2015Assignee: Composite Materials Technology, Inc.Inventor: James Wong
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Patent number: 9031671Abstract: A medical implantable lead comprising a core formed of a bare conductive wire formed from a biocompatible, corrosion-resistant conductive material, loosely wrapped in a fibrous material formed of shaped flattened ribbon filaments of a valve metal, and surrounded by a biocompatible insulation material.Type: GrantFiled: September 24, 2014Date of Patent: May 12, 2015Assignee: Composite Materials Technology, Inc.Inventor: James Wong, Sr.
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Patent number: 8858738Abstract: A process of forming porous electrolytic electrode in which alternating layers of a valve metal and a ductile metal are combined to form a billet, and the billet mechanically reduced by exclusion and drawing prior to etching. One or more slots are formed in the billet prior to the mechanical reducing, and filled with the ductile metal.Type: GrantFiled: September 21, 2007Date of Patent: October 14, 2014Assignee: Composite Materials Technology, Inc.Inventor: James Wong
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Publication number: 20140172119Abstract: A tissue implant member for implanting in living tissue is provided. The implant is formed of a fibrous structure of tantalum filament having a diameter less than 5 microns.Type: ApplicationFiled: February 6, 2014Publication date: June 19, 2014Applicant: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventor: James Wong
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Publication number: 20140106144Abstract: The method for forming a 3-D metal object by 3-D printing or injection molding comprising providing as a feed material metal particles formed by establishing multiple metal components in a primary billet of a ductile material, working the primary billet through a series of reduction steps to form the components into elongated elements, leaching the ductile material from the elongated elements and reducing the length to short uniform lengths.Type: ApplicationFiled: August 8, 2013Publication date: April 17, 2014Applicant: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventor: James Wong
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Publication number: 20140088675Abstract: A medical implantable lead comprising a core formed of a conductive wire formed from a biocompatible, corrosion-resistant conductive material, wrapped in a fibrous material formed of a valve metal, and surrounded by a biocompatible insulation material.Type: ApplicationFiled: September 18, 2013Publication date: March 27, 2014Applicant: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventor: James Wong
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Patent number: 8673025Abstract: A process for making a valve metal material useful for forming electrolytic devices comprising the steps of: establishing multiple tantalum or niobium components in a billet of a ductile material; working the billet to a series of reduction steps to form said tantalum or niobium components into elongated elements; cutting the resulting elongated elements and leaching the ductile metal from the elements; washing and mixing the cut elements; and forming the cut elements into a sheet. The resulting sheet may be formed into anodes and cathodes and assembled to form a wet electrolytic capacitor.Type: GrantFiled: June 9, 2010Date of Patent: March 18, 2014Assignee: Composite Materials Technology, Inc.Inventor: James Wong
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Publication number: 20130103165Abstract: A tissue implant member for implanting in living tissue is provided. The implant is formed of a fibrous mat of tantalum filament having a diameter less than about 10 microns.Type: ApplicationFiled: December 13, 2012Publication date: April 25, 2013Applicant: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventor: COMPOSITE MATERIALS TECHNOLOGY, INC.
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Patent number: 7480978Abstract: A superconducting material useful for forming electrolytic devices is made by establishing multiple niobium or tantalum components in a primary billet of a ductile material; working the primary billet through a series of reduction steps to form the niobium or tantalum components into elongated elements; cutting and restacking the resulting elongated elements with a porous confining layer to form a secondary billet, working the secondary billet through a series of reduction steps including twisting and final rolling to thin ribbon cross-sections with greater than 5:1 Aspect Ratios; cutting the resulting elongated billet into sections; and leaching the core and sheath at least in part.Type: GrantFiled: August 30, 2006Date of Patent: January 27, 2009Assignee: Composite Materials Technology, Inc.Inventor: James Wong
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Patent number: 7146709Abstract: A superconducting material useful for forming electrolytic devices is made by establishing multiple niobium or tantalum components in a primary billet of a ductile material; working the primary billet through a series of reduction steps to form the niobium or tantalum components into elongated elements; cutting and restacking the resulting elongated elements with a porous confining layer to form a secondary billet, working the secondary billet through a series of reduction steps including twisting and final rolling to thin ribbon cross-sections with greater than 5:1 Aspect Ratios; cutting the resulting elongated billet into sections; and leaching the core and sheath at least in part.Type: GrantFiled: December 16, 2003Date of Patent: December 12, 2006Assignee: Composite Materials Technology, Inc.Inventor: James Wong
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Patent number: 6918172Abstract: A niobium-based superconductor is manufactured by establishing multiple niobium components in a billet of a ductile metal, working the composite billet through a series of reduction steps to form the niobium components into elongated elements, each niobium element having a thickness on the order of 1 to 25 microns, surrounding the billet prior to the last reduction step with a porous confining layer of an acid resistant metal, immersing the confined billet in an acid or a high temperature liquid metal to remove the ductile metal from between the niobium elements while the niobium elements remain confined by said porous layer, exposing the confined mass of niobium elements to a material capable of reacting with Nb to form a superconductor.Type: GrantFiled: January 2, 2002Date of Patent: July 19, 2005Assignee: Composite Materials Technology, Inc.Inventor: James Wong
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Patent number: 6836955Abstract: A niobium-based superconductor is manufactured by establishing multiple niobium components in a billet of a ductile metal, working the composite billet through a series of reduction steps to form the niobium components into elongated elements, each niobium element having a thickness on the order of 1 to 25 microns, surrounding the billet prior to the last reduction step with a porous confining layer of an acid resistant metal, immersing the confined billet in an acid or a high temperature liquid metal to remove the ductile metal from between the niobium elements while the niobium elements remain confined by said porous layer, exposing the confined mass of niobium elements to a material capable of reacting with Nb to form a superconductor.Type: GrantFiled: October 29, 2002Date of Patent: January 4, 2005Assignee: Composite Materials Technology, Inc.Inventor: James Wong
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Publication number: 20040244185Abstract: A superconducting material useful for forming electrolytic devices is made by establishing multiple niobium or tantalum components in a primary billet of a ductile material; working the primary billet through a series of reduction steps to form the niobium or tantalum components into elongated elements; cutting and restacking the resulting elongated elements with a porous confining layer to form a secondary billet, working the secondary billet through a series of reduction steps including twisting and final rolling to thin ribbon cross-sections with greater than 5:1 Aspect Ratios; cutting the resulting elongated billet into sections; and leaching the core and sheath at least in part.Type: ApplicationFiled: December 16, 2003Publication date: December 9, 2004Applicant: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventor: James Wong
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Patent number: 6699821Abstract: A Nb3Al superconducting wire and method for fabricating the same wherein Nb and Al powders in combination, or Nb—Al alloy powders are encapsulated in a metal tube, preferably copper or copper-alloy (e.g., CuNi), and the resultant composite is processed by conventional means to fine wire. Multifilamentary composites are produced by rebundling of the powder-filled wires into metal tubes followed by conventional processing to wire of a desired size. It is required for the use of Nb and Al powders in combination that the Nb and Al powder particle size be less than 100 nm. In the use of Nb—Al alloy powders, it is preferred, but not required, that the powder particle size be similarly of a nanometer scale. The use of nanometer-scale powders is beneficial to wire fabrication, allowing the production of long wire piece-lengths. At final wire size, the wires produced by practice of the present invention are heat treated at temperatures below the melting point of copper (1083° C.Type: GrantFiled: April 9, 2002Date of Patent: March 2, 2004Assignee: Composite Materials Technology, Inc.Inventors: Mark K. Rudziak, Leszek R. Motowidlo, Terence Wong
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Patent number: RE49419Abstract: An improved structure of nano-scaled and nanostructured Si particles is provided for use as anode material for lithium ion batteries. The Si particles are prepared as a composite coated with MgO and metallurgically bonded over a conductive refractory valve metal support structure.Type: GrantFiled: September 23, 2019Date of Patent: February 14, 2023Assignee: COMPOSITE MATERIALS TECHNOLOGY, INC.Inventors: James Wong, David Frost