Patents Assigned to H.C. STARCK
  • Method for producing ammonium paratungstate hydrates and ammonium paratungstate decahydrate
    Patent number: 8216533
    Abstract: The invention is directed to a process for the continuous preparation of ammonium paratungstate hydrate by back reextraction of a tungsten-laden organic phase with an ammonia-containing aqueous solution in a mixer-settler apparatus. The reextraction is carried out at an NH3:W molar ratio of from 0.83 to 1.30, and a volume feed ratio of the tungsten-laden organic phase to the ammonia-containing aqueous solution of from 5 to 25. The above crystalline is in high purity and in high yield. The production method can be carried out in a simple and energy-efficient manner.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: July 10, 2012
    Assignee: H.C. Starck GmbH
    Inventors: Viktor Stoller, Michael Erb, Juliane Meese-Marktscheffel, Michael Lohse, Klaus-Jürgen Marschall, Frank Schrumpf
  • Methods of forming sputtering targets
    Patent number: 8197894
    Abstract: In various embodiments, sputter-target formation includes application of a layer having an intermediate coefficient of thermal expansion between the backing plate and the target material.
    Type: Grant
    Filed: November 8, 2007
    Date of Patent: June 12, 2012
    Assignees: H.C. Starck GmbH, H.C. Starck Inc.
    Inventors: Steven A. Miller, Olaf Schmidt-Park, Prabhat Kumar, Richard Wu, Shuwei Sun, Stefan Zimmermann
  • METAL POWDER
    Publication number: 20120132033
    Abstract: The invention relates to novel pre-alloyed metal powders a method for production and use thereof.
    Type: Application
    Filed: February 6, 2012
    Publication date: May 31, 2012
    Applicant: H.C. Starck GmbH
    Inventors: Bernd Mende, Gerhard Gille, Ines Lamprecht
  • Inorganic compounds
    Patent number: 8187567
    Abstract: Disclosed is a niobium suboxide powder for the manufacture of capacitors with higher break down voltages, higher temperatures of operation and elongated lifetimes. The powder is doped with nitrogen which is at least partly present in the form homogeneously distributed, x-ray detectable Nb2N-crystal domains. The niobium suboxide powder contains niobium suboxide particles having a bulk nitrogen content of between 500 to 20,000 ppm.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: May 29, 2012
    Assignee: H. C. Starck GmbH
    Inventors: Christoph Schnitter, Holger Brumm, Christine Rawohl, Colin McCracken
  • REFRACTORY METAL POTS
    Publication number: 20120117780
    Abstract: In accordance with various embodiments, plates are formed via a plurality of upset-forging and forging-back cycles followed by a plurality of rolling passes.
    Type: Application
    Filed: November 21, 2011
    Publication date: May 17, 2012
    Applicant: H.C. Starck Inc.
    Inventor: Peter R. Jepson
  • Method for production of ammonium paratungstate tetrahydrate and highly pure ammonium paratungstate tetrahydrate
    Patent number: 8168155
    Abstract: The invention is directed to a method for the production of ammonium paratungstate tetrahydrate by thermal treatment of ammonium paratungstate decahydrate in an aqueous suspension. The ammonium paratungstate tetrahydrate can be produced with high purity and high yield. The production method may furthermore be carried out in a simple and energy-efficient manner.
    Type: Grant
    Filed: January 29, 2008
    Date of Patent: May 1, 2012
    Assignee: H.C. Starck GmbH
    Inventors: Viktor Stoller, Michael Erb, Juliane Meese-Marktscheffel, Michael Lohse, Wolfgang Mathy
  • POLYMER COATINGS WITH IMPROVED UV AND HEAT STABILITY
    Publication number: 20120091399
    Abstract: The present invention relates to coatings comprising electrically conductive polymers and flavones, their production and use, and dispersions for the production of such coatings.
    Type: Application
    Filed: March 30, 2010
    Publication date: April 19, 2012
    Applicant: H.C. Starck Clevios GmbH
    Inventors: Udo Guntermann, Friedrich Jonas
  • PROCESS FOR THE PRODUCTION OF ELECTROLYTE CAPACITORS
    Publication number: 20120075772
    Abstract: The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.
    Type: Application
    Filed: October 6, 2011
    Publication date: March 29, 2012
    Applicant: H.C. Starck GmbH
    Inventors: Udo Merker, Wilfried Lövenich, Klaus Wussow, Ralph Tillmann
  • Metal powder
    Patent number: 8133297
    Abstract: The invention relates to novel pre-alloyed metal powders a method for production and use thereof.
    Type: Grant
    Filed: November 28, 2007
    Date of Patent: March 13, 2012
    Assignee: H.C. Starck GmbH
    Inventors: Bernd Mende, Gerhard Gille, Ines Lamprecht
  • PROCESS FOR PRODUCING ELECTROLYTIC CAPACITORS WITH A POLYMERIC OUTER LAYER
    Publication number: 20120057275
    Abstract: The invention relates to a process for producing electrolytic capacitors with low equivalent series resistance, low residual current and high thermal stability, which consist of a solid electrolyte and an outer layer comprising conjugated polymers, to electrolytic capacitors produced by this process and to the use of such electrolytic capacitors.
    Type: Application
    Filed: February 4, 2010
    Publication date: March 8, 2012
    Applicant: H.C. Starck Clevios GmbH
    Inventors: Matthias Intelmann, Klaus Wussow, Udo Merker
  • TUNGSTIC ACID POWDER CONSISTING OF SPHERICAL TUNGSTEN PARTICLES AND METHOD FOR PRODUCING SAME
    Publication number: 20120045647
    Abstract: Process for the production of a powdered spherical tungstic acid by acidification of an aqueous alkaline tungstate solution with mineral acid at elevated temperature, preferably in a continuous stirred tank or a cascade of at least 2 continuous stirred tanks, and tungstic acid obtainable in this way, which is characterised by a high bulk density and spherical morphology.
    Type: Application
    Filed: September 23, 2011
    Publication date: February 23, 2012
    Applicant: H.C. Starck GmbH
    Inventors: Sven Albrecht, Armin Olbrich, Michael Reib, Frank Schrumpf, Juliane Meese-Marktscheffel, Uwe Kutzler
  • CRUCIBLE FOR SILICON SUITABLE FOR PRODUCING SEMICONDUCTORS
    Publication number: 20120037065
    Abstract: A crucible for producing a silicon suitable for producing a semiconductor includes a plurality of components and at least one unclosed joint gap.
    Type: Application
    Filed: February 11, 2010
    Publication date: February 16, 2012
    Applicant: H.C. Starck GmbH
    Inventors: Rolf Wagner, Florian Arzberger
  • Protective metal-clad structures
    Patent number: 8113413
    Abstract: In various embodiments, a metallic structure includes first and second clad structures each comprising a protective layer disposed over a steel layer, a joint joining the steel layers of first and second clad structures, and, directly connecting the protective layers of the first and second clad structures, a layer of metal powder disposed in contact with (i) the joint, (ii) the protective layers of the first and second clad structures, and (iii) a portion of at least one of the steel layers proximate the joint.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: February 14, 2012
    Assignee: H.C. Starck, Inc.
    Inventors: Steven A. Miller, Leonid N. Shekhter, Stefan Zimmerman
  • CAPACITOR ANODE
    Publication number: 20120033350
    Abstract: A process for producing a solid electrolyte capacitor with an anode comprising a sintered fine NbOx powder, where 0.5<x<1.7, includes providing a green anode body. The green anode body is sintered so as to provide a sintered anode body. The sintered anode body is formed so as to provide a formed anode body, wherein the forming is essentially performed without applying a pressure. The formed anode body is provided with a cathode so as to provide the solid electrolyte capacitor.
    Type: Application
    Filed: December 7, 2009
    Publication date: February 9, 2012
    Applicant: H. C. STARCK GMBH
    Inventors: Ralph Otterstedt, Marianne Gottschling
  • Valve metal-oxide powder and method for producing said powder
    Patent number: 8101151
    Abstract: A process for the production of a valve metal oxide powder, in particular an Nb2O5 or Ta2O5 powder by continuous reaction of a fluoride-containing valve metal compound with a base in the presence of water and calcination of the resultant product, wherein the reaction is performed in just one reaction vessel and at a temperature of at least 45° C. Valve metal oxide powders obtainable in said manner which exhibit a spherical morphology, a D50 value of 10 to 80 ?m and an elevated BET surface area.
    Type: Grant
    Filed: August 18, 2009
    Date of Patent: January 24, 2012
    Assignee: H.C. Starck GmbH
    Inventors: Karsten Beck, Hady Seyeda, Klaus Lerch, Bianca Agnes Balan
  • MOLYBDENUM CONTAINING TARGETS
    Publication number: 20120003486
    Abstract: The invention is directed at sputter targets including 50 atomic % or more molybdenum, a second metal element of niobium or vanadium, and a third metal element selected from the group consisting of titanium, chromium, niobium, vanadium, and tantalum, wherein the third metal element is different from the second metal element, and deposited films prepared by the sputter targets. In a preferred aspect of the invention, the sputter target includes a phase that is rich in molybdenum, a phase that is rich in the second metal element, and a phase that is rich in the third metal element.
    Type: Application
    Filed: June 30, 2010
    Publication date: January 5, 2012
    Applicant: H.C. STARCK, INC.
    Inventors: Gary Alan Rozak, Mark E. Gaydos, Patrick Alan Hogan, Shuwei Sun
  • Molybdenum tubular sputtering targets with uniform grain size and texture
    Patent number: 8088232
    Abstract: Molybdenum, sputtering targets and sintering characterized as having no or minimal texture banding or through thickness gradient. The molybdenum sputtering targets having a fine, uniform grain size as well as uniform texture, are high purity and can be micro-alloyed to improved performance. The sputtering targets can be round discs, square, rectangular or tubular and can be sputtered to form thin films on substrates. By using a segment-forming method, the size of the sputtering target can be up to 6 m×5.5 m. The thin films can be used in electronic components such as Thin Film Transistor-Liquid Crystal Displays, Plasma Display Panels, Organic Light Emitting Diodes, Inorganic Light Emitting Diode Displays, Field Emitting Displays, solar cells, sensors, semiconductor devices, and gate device for CMOS (complementary metal oxide semiconductor) with tunable work functions.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: January 3, 2012
    Assignee: H.C. Starck Inc.
    Inventors: Brad Lemon, Joseph Hirt, Timothy Welling, James G. Daily, III, David Meendering, Gary Rozak, Jerome O'Grady, Peter R. Jepson, Prabhat Kumar, Steven A. Miller, Richard Wu, Davd G. Schwarz
  • DEVICE AND METHOD FOR THE PRODUCTION OF COMPOUNDS BY PRECIPITATION
    Publication number: 20110300470
    Abstract: The invention relates to a device and a method for the production of compounds by precipitation of solids from solutions, the physical and chemical properties of the solid particles formed on precipitation being flexible and can be independently fixable. Custom products can thus be produced with very high space-time yields and a particulate nickel/cobalt mixed hydroxide of formula NixCo1-x(OH)2, with a BET surface area of 20 m2/g and a tap density of greater than 2.4 g/cm3.
    Type: Application
    Filed: March 20, 2007
    Publication date: December 8, 2011
    Applicant: H.C. STARCK GMBH
    Inventors: Armin Olbrich, Juliane Meese-Marktscheffel, Matthias Jahn, Rüdiger Zertani, Gerd Maikowske, Sven Albrecht, Stefan Malcus, Josef Schmoll, Gabriele Christine Schmoll, Christian Peter Schmoll, Wolfgang Josef Schmoll, Volker Schmoll, Georg Wilhelm Schmoll, Michael Kruft
  • Refractory metal pots
    Patent number: 8061177
    Abstract: Computer-implemented processes for making refractory metal pots, including: cutting an a refractory metal ingot into a first workpiece; subjecting the first workpiece to multiple upset forgings, annealings in a vacuum or inert gas to a temperature sufficiently high to cause at least partial recrystallization, forging-backs, and rollings to form a plate; wherein the forged, annealed workpiece undergoes a reduction in thickness after at least one rolling pass and is turned between at least one pass, to form the plate; and deep drawing the plate to form a pot; wherein dimensions of at least one workpiece or plate suitable for processing into a pot are pre-determined with a computer-implemented finite element modeling assessment method.
    Type: Grant
    Filed: March 23, 2005
    Date of Patent: November 22, 2011
    Assignee: H.C. Starck Inc.
    Inventor: Peter R. Jepson
  • Process for the production of electrolyte capacitors
    Patent number: 8058135
    Abstract: The invention relates to a process for the production of electrolyte capacitors having a low equivalent series resistance and low residual current, electrolyte capacitors produced by this process and the use of such electrolyte capacitors.
    Type: Grant
    Filed: September 13, 2006
    Date of Patent: November 15, 2011
    Assignee: H. C. Starck GmbH
    Inventors: Udo Merker, Wilfried Lövenich, Klaus Wussow, Ralph Tillmann