Patents by Inventor Anthony R. James
Anthony R. James 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).
-
Patent number: 8668848Abstract: A composition for the fabrication of reflective features using a direct-write tool is disclosed. The composition comprises metal nanoparticles having an average particle size less than 300 nm and which carry thereon a polymer for substantially preventing agglomeration of the nanoparticles, wherein the nanoparticles exhibit a metal-polymer weight ratio of 100:1 to 10:1. The composition further includes a vehicle for forming a dispersion with the metal nanoparticles. A number of electronic devices comprising a reflective layer formed from the composition are also disclosed. One example case provides an electronic device having a reflective electrode. The reflective electrode comprises a percolation network of the metal nanoparticles embedded in a matrix of the polymer and having an average particle size of less than 300 nm, wherein the reflective electrode is reflective in the visible light range and does not diffract incident light.Type: GrantFiled: December 4, 2012Date of Patent: March 11, 2014Assignee: Cabot CorporationInventors: Karel Vanheusden, Klaus Kunze, Hyungrak Kim, Aaron D. Stump, Allen B. Schult, Mark J. Hampden-Smith, Chuck Edwards, Anthony R. James, James Caruso, Toivo T. Kodas, Scott Thomas Haubrich, Mark H. Kowalski
-
Patent number: 8383014Abstract: A metal nanoparticle composition for the fabrication of conductive features. The metal nanoparticle composition advantageously has a low viscosity permitting deposition of the composition by direct-write tools. The metal nanoparticle composition advantageously also has a low conversion temperature, permitting its deposition and conversion to an electrical feature on polymeric substrates.Type: GrantFiled: June 15, 2010Date of Patent: February 26, 2013Assignee: Cabot CorporationInventors: Karel Vanheusden, Klaus Kunze, Hyungrak Kim, Aaron D. Stump, Allen B. Schult, Mark J. Hampden-Smith, Chuck Edwards, Anthony R. James, James Caruso, Toivo T. Kodas, Scott Thomas Haubrich, Mark H. Kowalski
-
Publication number: 20110303885Abstract: A metal nanoparticle composition for the fabrication of conductive features. The metal nanoparticle composition advantageously has a low viscosity permitting deposition of the composition by direct-write tools. The metal nanoparticle composition advantageously also has a low conversion temperature, permitting its deposition and conversion to an electrical feature on polymeric substrates.Type: ApplicationFiled: June 15, 2010Publication date: December 15, 2011Applicant: Cabot CorporationInventors: Karel Vanheusden, Klaus Kunze, Hyungrak Kim, Aaron D. Stump, Allen B. Schult, Mark J. Hampden-Smith, Chuck Edwards, Anthony R. James, James Caruso, Toivo T. Kodas, Scott Thomas Haubrich, Mark H. Kowalski
-
Patent number: 7824466Abstract: Processes for the production of metal nanoparticles. In one aspect, the invention is to a process comprising the steps of mixing a heated first solution comprising a base and/or a reducing agent (e.g., a non-polyol reducing agent), a polyol, and a polymer of vinyl pyrrolidone with a second solution comprising a metal precursor that is capable of being reduced to a metal by the polyol. In another aspect, the invention is to a process that includes the steps of heating a powder of a polymer of vinyl pyrrolidone; forming a first solution comprising the powder and a polyol; and mixing the first solution with a second solution comprising a metal precursor capable of being reduced to a metal by the polyol.Type: GrantFiled: May 30, 2007Date of Patent: November 2, 2010Assignee: Cabot CorporationInventors: Karel Vanheusden, Klaus Kunze, Hyungrak Kim, Aaron D. Stump, Allen B. Schult, Mark J. Hampden-Smith, Chuck Edwards, Anthony R. James, James Caruso, Toivo T. Kodas, Scott T. Haubrich, Mark H. Kowalski, Nathan E. Stott
-
Publication number: 20100269635Abstract: Processes for the production of metal nanoparticles. In one aspect, the invention is to a process comprising the steps of mixing a heated first solution comprising a base and/or a reducing agent (e.g., a non-polyol reducing agent), a polyol, and a polymer of vinyl pyrrolidone with a second solution comprising a metal precursor that is capable of being reduced to a metal by the polyol. In another aspect, the invention is to a process that includes the steps of heating a powder of a polymer of vinyl pyrrolidone; forming a first solution comprising the powder and a polyol; and mixing the first solution with a second solution comprising a metal precursor capable of being reduced to a metal by the polyol.Type: ApplicationFiled: July 2, 2010Publication date: October 28, 2010Applicant: CABOT CORPORATIONInventors: Karel VANHEUSDEN, Klaus KUNZE, Hyungrak KIM, Aaron D. STUMP, Allen B. Schult, Mark J. Hampden-Smith, Chuck EDWARDS, Anthony R. JAMES, James CARUSO, Toivo T. KODAS, Scott T. HAUBRICH, Mark H. KOWALSKI, Nathan E. STOTT
-
Publication number: 20100269634Abstract: A process for the production of metal nanoparticles. The process comprises a rapid mixing of a solution of at least about 0.1 mole of a metal compound that is capable of being reduced to a metal by a polyol with a heated solution of a polyol and a substance that is capable of being adsorbed on the nanoparticles.Type: ApplicationFiled: July 2, 2010Publication date: October 28, 2010Applicant: CABOT CORPORATIONInventors: Karel Vanheusden, Klaus Kunze, Hyungrak Kim, Aaron D. Stump, Allen B. Schult, Mark J. Hampden-Smith, Chuck Edwards, Anthony R. James, James Caruso, Toivo T. Kodas, Scott Thomas Haubrich, Mark H. Kowalski
-
Patent number: 7749299Abstract: A process for the production of metal nanoparticles. The process comprises a rapid mixing of a solution of at least about 0.1 mole of a metal compound that is capable of being reduced to a metal by a polyol with a heated solution of a polyol and a substance that is capable of being adsorbed on the nanoparticles.Type: GrantFiled: January 13, 2006Date of Patent: July 6, 2010Assignee: Cabot CorporationInventors: Karel Vanheusden, Klaus Kunze, Hyungrak Kiim, Aaron D. Stump, Allen B. Schult, Mark J. Hampden-Smith, Chuck Edwards, Anthony R. James, James Caruso, Toivo T. Kodas, Scott Thomas Haubrich, Mark H. Kowalski
-
Patent number: 7575621Abstract: A process for the production of metal nanoparticles. Nanoparticles are formed by combining a metal compound with a solution that comprises a polyol and a substance that is capable of being adsorbed on the nanoparticles. The nanoparticles are precipitated by adding a nanoparticle-precipitating liquid in a sufficient amount to precipitate at least a substantial portion of the nanoparticles and of a protic solvent in a sufficient amount to improve the separation of the nanoparticles from the liquid phase.Type: GrantFiled: January 13, 2006Date of Patent: August 18, 2009Assignee: Cabot CorporationInventors: Karel Vanheusden, Hyungrak Kiim, Aaron D. Stump, Allen B. Schult, Mark J. Hampden-Smith, Chuck Edwards, Anthony R. James, James Caruso, Toivo T. Kodas, Scott Thomas Haubrich, Mark H. Kowalski
-
Publication number: 20070281099Abstract: A system and a method are provided for ink-jet printing a solderable conductive pad onto a substrate. The system comprises at least one print head and a curing station for curing an ink deposited onto the substrate. The system is configured to: deposit at least a first layer of a first ink onto the substrate; cure the first layer of the first ink; deposit at least an intermediate layer of a second ink on top of the cured first layer of the first ink; cure the intermediate layer of the second ink; deposit at least a last layer of the first ink on top of the cured intermediate layer of the second ink; and cure the last layer of the first ink. The first ink has a relatively high conductivity. The second ink has a relatively low conductivity. The first layer, the intermediate layer, and the last layer may be arranged such that when solder is applied to the last layer, the solder is prevented from leaching through to the first layer.Type: ApplicationFiled: May 31, 2006Publication date: December 6, 2007Applicant: Cabot CorporationInventors: James J. Howarth, Anthony R. James, Karel Vanheusden
-
Publication number: 20070277685Abstract: The invention relates generally to a printing process. In particular, the invention relates to a printing process where a first-printed feature or vanishing trace causes a second-printed feature to have a smaller dimension than it would in the absence of the first-printed feature or vanishing trace.Type: ApplicationFiled: May 31, 2006Publication date: December 6, 2007Applicant: Cabot CorporationInventor: Anthony R. James