Patents by Inventor Claudio De La Prieta

Claudio De La Prieta 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: 8038933
    Abstract: A gas sensor is for determining at least one physical quantity of a gas, e.g., an exhaust gas of an internal combustion engine, the gas sensor having a sensor element that is fixed in a housing of the gas sensor by a seal assembly. The seal assembly includes a sealing element, which has a ceramic and/or a metallic material. After the heat treatment, the sealing element has a maximum decrease in volume of 5 percent, or an increase in volume, based on the volume of the sealing element prior to the heat treatment.
    Type: Grant
    Filed: July 26, 2007
    Date of Patent: October 18, 2011
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Weyl, Claudio De La Prieta, Andreas Hachtel, Thomas Schulte, Thomas Egner, Juergen Wilde, Markus Siebert, Michael Kupzig, Uwe Glanz, Rainer Mueller, Leonore Schwegler, Petra Kuschel, Andreas Pesch
  • Patent number: 7270888
    Abstract: A composite body made of at least two ceramic layers, in which the ceramic layers are permanently bonded to one another at defined bonding points by a contact layer made of a bonding material. To achieve a permanent, thermally stable bond of ceramic layers having different coefficients of thermal expansion, the bonding material has a low modulus of elasticity. During the manufacture of the composite body, the bonding points of the ceramic layers are pretreated to form a porous surface structure, the bonding material is applied to these bonding points, and after the ceramic layers are laid one on top of another with bonding points facing toward one another and bonding material lying between them, the assembled composite body is subjected to a heat treatment.
    Type: Grant
    Filed: August 25, 2003
    Date of Patent: September 18, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Claudio De La Prieta, Thomas Schulte, Erhard Hirth, Annika Kristoffersson, Stefan Nufer
  • Patent number: 7258770
    Abstract: A gas sensor is for determining at least one physical quantity of a gas, e.g., an exhaust gas of an internal combustion engine, the gas sensor having a sensor element that is fixed in a housing of the gas sensor by a seal assembly. The seal assembly includes a sealing element, which has a ceramic and/or a metallic material. After the heat treatment, the sealing element has a maximum decrease in volume of 5 percent, or an increase in volume, based on the volume of the sealing element prior to the heat treatment.
    Type: Grant
    Filed: May 23, 2003
    Date of Patent: August 21, 2007
    Assignee: Robert Bosch GmbH
    Inventors: Helmut Weyl, Claudio De La Prieta, Andreas Hachtel, Thomas Schulte, Thomas Egner, Juergen Wilde, Markus Siebert, Michael Kupzig, Uwe Glanz, Rainer Mueller, Leonore Schwegler, Petra Kuschel, Andreas Pesch
  • Patent number: 7084350
    Abstract: A green ceramic insert having a green ceramic body provided with a recess extending through the ceramic body is provided, the recess being filled with a paste which may be converted into an electrical plated hole. A ceramic insert made from a sintered green ceramic insert of this type is also described. In addition, a ceramic green body or a green body composite is provided, which has at least one recess in some areas, into which one of the described green ceramic inserts is inserted. The ceramic insert may be integrally joined to the laminated composite, a conductive paste converted by sintering into a printed conductor being routed on the laminated composite in a manner electrically insulated from it, and electroconductively connecting the top of the laminated composite to its bottom via the electrical plated hole.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: August 1, 2006
    Assignee: Robert Bosch GmbH
    Inventors: Claudio De La Prieta, Andreas Hachtel, Thomas Schulte, Uwe Glanz, Erhard Hirth
  • Publication number: 20050175853
    Abstract: A composite body made of at least two ceramic layers, in which the ceramic layers are permanently bonded to one another at defined bonding points by a contact layer made of a bonding material. To achieve a permanent, thermally stable bond of ceramic layers having different coefficients of thermal expansion, the bonding material has a low modulus of elasticity. During the manufacture of the composite body, the bonding points of the ceramic layers are pretreated to form a porous surface structure, the bonding material is applied to these bonding points, and after the ceramic layers are laid one on top of another with bonding points facing toward one another and bonding material lying between them, the assembled composite body is subjected to a heat treatment.
    Type: Application
    Filed: August 25, 2003
    Publication date: August 11, 2005
    Inventors: Claudio De La Prieta, Thomas Schulte, Erhard Hirth, Annika Kristoffersson, Stefan Nufer
  • Publication number: 20050029012
    Abstract: A green ceramic insert having a green ceramic body provided with a recess extending through the ceramic body is provided, the recess being filled with a paste which may be converted into an electrical plated hole. A ceramic insert made from a sintered green ceramic insert of this type is also described. In addition, a ceramic green body or a green body composite is provided, which has at least one recess in some areas, into which one of the described green ceramic inserts is inserted. The ceramic insert may be integrally joined to the laminated composite, a conductive paste converted by sintering into a printed conductor being routed on the laminated composite in a manner electrically insulated from it, and electroconductively connecting the top of the laminated composite to its bottom via the electrical plated hole.
    Type: Application
    Filed: September 30, 2002
    Publication date: February 10, 2005
    Inventors: Claudio De La Prieta, Andreas Hachtel, Thomas Schulte, Uwe Glanz, Erhard Hirth
  • Patent number: 6803093
    Abstract: A green ceramic body, in particular a green ceramic film having a function layer which contains platinum and is applied in at least some areas is described; this function layer is photostructurable in daylight and in the presence of oxygen. In addition, a method of producing such a green ceramic body is described, including the process steps: a) making available a green ceramic starting body, b) applying a photostructurable paste containing platinum to the starting body in at least some areas, in particular by printing, in daylight and in the presence of oxygen, and c) photostructuring the applied paste to form the function layer. The green ceramic body described here is suitable in particular for further processing to form a temperature sensor.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: October 12, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Claudio De La Prieta, Thomas Schulte, Uwe Glanz, Petra Kuschel
  • Patent number: 6716327
    Abstract: A measuring arrangement for the analysis of gas components in gas mixtures, having at least one electrochemical solid electrolyte test cell with at least one cathode in a diffusion channel is exposed to a gas mixture. The use of several cathodes wired one behind the other makes possible selective analysis of individual gas components. At the first cathode, oxygen is selectively pumped off by the use of specifically oxygen-ion-conductive layers so that another component of the gas mixture can be analyzed by the following electrode.
    Type: Grant
    Filed: September 24, 1999
    Date of Patent: April 6, 2004
    Assignee: Robert Bosch GmbH
    Inventors: Claudio De La Prieta, Gerhard Hoetzel, Carmen Schmiedel, Petra Kitiratschky, Thomas Schulte, Hans-Dieter Wiemhoefer
  • Publication number: 20040040843
    Abstract: A gas sensor is for determining at least one physical quantity of a gas, e.g., an exhaust gas of an internal combustion engine, the gas sensor having a sensor element that is fixed in a housing of the gas sensor by a seal assembly. The seal assembly includes a sealing element, which has a ceramic and/or a metallic material. After the heat treatment, the sealing element has a maximum decrease in volume of 5 percent, or an increase in volume, based on the volume of the sealing element prior to the heat treatment.
    Type: Application
    Filed: May 23, 2003
    Publication date: March 4, 2004
    Inventors: Helmut Weyl, Claudio De La Prieta, Andreas Hachtel, Thomas Schulte, Thomas Egner, Juergen Wilde, Markus Siebert, Michael Kupzig, Uwe Glanz, Rainer Mueller, Leonore Schwegler, Petra Kuschel, Andreas Pesch
  • Patent number: 6613207
    Abstract: An electrochemical sensor for ascertaining gas concentrations in gases, particularly in exhaust gases of combustion engines, includes an oxygen-ion-conductive solid electrolyte which is provided with electrode layers arranged at a distance from one another and with at least one resistance heating element that is separated from the solid electrolyte by an electrical insulating layer, a foil binder layer being provided between the electrical insulating layer and the solid electrolyte. At least one electron-conductive intermediate layer is provided between the electrode-side electrical insulating layer and the adjacent solid electrolyte.
    Type: Grant
    Filed: December 14, 1999
    Date of Patent: September 2, 2003
    Assignee: Robert Bosch GmbH
    Inventors: Claudio De La Prieta, Jens Stefan Schneider, Carsten Springhorn, Thomas Schulte, Olaf Jach, Ulrich Eisele, Carmen Schmiedel, Lothar Diehl
  • Publication number: 20030152863
    Abstract: A photostructurable paste is proposed which is particularly suitable for manufacturing structured resistor layers or printed circuit traces on ceramic blank substrates. In this context, the paste has a light-sensitive organic binder and a filler material, the binder including a polymer, a photoinitiator, an inhibitor for a thermal polymerization, an organic disulfide and an organic solvent. The filler material is a platinum powder, a platinum compound or a mixture of a platinum powder or a platinum compound with a ceramic powder or a ceramic precursor compound.
    Type: Application
    Filed: January 30, 2003
    Publication date: August 14, 2003
    Inventors: Claudio De La Prieta, Thomas Schulte, Uwe Glanz, Petra Kuschel
  • Publication number: 20030026961
    Abstract: A green ceramic body, in particular a green ceramic film (10) having a function layer (12) which contains platinum and is applied in at least some areas is described; this function layer (12) is photostructurable in daylight and in the presence of oxygen. In addition, a method of producing such a green ceramic body is described, including the process steps: a) making available a green ceramic starting body (10), b) applying a photostructurable paste containing platinum to the starting body (10) in at least some areas, in particular by printing, in daylight and in the presence of oxygen, and c) photostructuring the applied paste to form the function layer (12). The green ceramic body described here is suitable in particular for further processing to form a temperature sensor (5).
    Type: Application
    Filed: March 14, 2002
    Publication date: February 6, 2003
    Inventors: Claudio De La Prieta, Thomas Schulte, Uwe Glanz, Petra Kuschel
  • Patent number: 6410081
    Abstract: The invention proposes a paste for welding ceramic materials to metallic contact surfaces or metals, which contains a noble metal, an aluminum compound, a silicon compound, and a compound selected from the group of the barium compounds, calcium compounds, and magnesium compounds. Along with these, a binder, a solvent, a softener, a thixotropic agent, and a dispersing agent can also be added to the paste. A paste of this kind is used to produce a welded joint between ceramic materials and a metallic contact surface, the paste preferably being printed onto the ceramic material. The ceramic material is then sintered with the paste, and then the metallic contact surface or a metal is welded on.
    Type: Grant
    Filed: November 17, 2000
    Date of Patent: June 25, 2002
    Assignee: Robert Bosch GmbH
    Inventors: Claudio De La Prieta, Uwe Glanz, Carmen Schmiedel, Petra Kitiratschky, Bernhard Zappel
  • Patent number: 5885429
    Abstract: An electrochemical measuring sensor having a solid electrolyte, a first electrode exposed to a gas to be measured and a second electrode exposed to a reference gas, with the electrodes preferably being arranged on opposite sides of the solid electrolyte. At least one of the electrodes (16, 20) is provided with a contouring (24) on its side (22) that is exposed to the gas to be measured or to the reference gas, with the contouring being a trench-shaped groove (26) embossed into the surface of the electrode such that the electrode is pressed into the adjacent solid electrolyte in the region of the groove. According to the method, the embossing is done while the electrode and the solid electrolyte are in the non-sintered state, and the sensor is subsequently sintered.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: March 23, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Karl-Hermann Friese, Werner Gruenwald, Kurt Schmid, Claudio De La Prieta, Gerhard Schneider, Hans-Joerg Renz, Harald Neumann, Uwe Glanz, Stefan Kuschel, Ralf Haug, Manfred Moser, Kurt Bayha, Annette Seibold, Carmen Schmiedel, Reiner Schuetz
  • Patent number: 5876538
    Abstract: Ceramic multilayer substrates as circuit supports for complex electronic circuits wth integrated capacitors are manufactured by printing capacitor structures, using the screen printing process, directly onto a first green ceramic film. The first green ceramic film with the printed structures is arranged in a stack with further green ceramic films, laminated, and fired. During lamination of the ceramic films, the printed structures are pressed into the ceramic films so that after firing, a multilayer substrate with integrated capacitors results.
    Type: Grant
    Filed: February 26, 1997
    Date of Patent: March 2, 1999
    Assignee: Robert Bosch GmbH
    Inventors: Klaus Steinle, Claudio De La Prieta, Manfred Moser, Annette Seibold
  • Patent number: 5773894
    Abstract: An insulation layer system, in particular for gas sensors, is proposed, having at least one electrically conductive solid-electrolyte layer (10), an electrically conductive layer (20) and at least one electrically insulating layer (13) between the solid-electrolyte layer (10) and the electrically conductive layer (20). The material of the insulating layer (13) contains, prior to sintering, pentavalent metal oxides of niobium or tantalum as an additive, it being possible for the additive to diffuse into the adjoining solid-electrolyte layer (10) during sintering.
    Type: Grant
    Filed: December 18, 1996
    Date of Patent: June 30, 1998
    Assignee: Robert Bosch GmbH
    Inventors: Karl-Hermann Friese, Heinz Geier, Werner Gruenwald, Claudio De La Prieta
  • Patent number: 5702580
    Abstract: A measuring sensor for determining oxygen content in a gas mixture including exhaust gases of internal combustion engines, includes a base substrate which is comprised of a base material and which is electrically insulating; and an electrochemical measuring probe and an electrochemical reference probe arranged separate from each other on the base substrate. The measuring probe includes at least one internal electrode; at least one solid electrolyte island; and at least one external electrode. The measuring probe additionally includes a diffusion barrier. Further base material layers composed of the base material are provided so as to embed at least the diffusion barrier, the at least one internal electrodes for the measuring probe and the internal electrode for the reference probe. A diffusion hole is defined between the measuring probe and the reference probe which extends from the base substrate through the diffusion barrier and respective base material layers, and out to the gas mixture to be measured.
    Type: Grant
    Filed: March 21, 1996
    Date of Patent: December 30, 1997
    Assignee: Robert Bosch GmbH
    Inventors: Hermann Dietz, Werner Gruenwald, Claudio De La Prieta, Gert Lindemann, Ulrich Eisele, Carmen Schmiedel
  • Patent number: 5545301
    Abstract: A sensor element for determining concentration of at least one constituent of a gas mixture operates on an electro-chemical measuring process and includes a gas measuring chamber; a pair of electrodes and an electrode chamber located between the pair of electrodes; and a diffusion conduit adjoining the electrode chamber and having a gas input which connects with the gas measuring chamber, having a gas output which connects with the electrode chamber, and having at least one cross-sectional area including a height, w, and a length, L, which height, w, has a preselected minimum value, and which length, L, has a value which is equal to or greater than the preselected minimum value of the height, w.
    Type: Grant
    Filed: December 23, 1994
    Date of Patent: August 13, 1996
    Assignee: Robert Bosch GmbH
    Inventors: Karl-Hermann Friese, Werner Gruenwald, Roland Stahl, Claudio de la Prieta, Gerhard Schneider, Harald Neumann
  • Patent number: 5310472
    Abstract: Sensor element for limiting current sensors to determine the lambda value of gas mixtures, in particular of exhaust gases of internal combustion engines, having inner and outer pump electrodes disposed on a ceramic substrate, the inner pump electrode of which is accessible for the measurement gas supplied through a diffusion layer acting as a diffusion barrier; having a gas-tight cover layer above the diffusion layer and having conductor tracks for the pump electrodes is described, in which the diffusion layer is adjustable, to calibrate the sensor element. This adjustability is advantageously attained by embodying the side of the diffusion layer 5 oriented toward the measurement gas inlet opening as a zigzag-shaped adjustment zone 8, from which parts can be separated mechanically or by laser cuts. The invention makes comparatively simple calibration of sensor elements possible.
    Type: Grant
    Filed: May 16, 1991
    Date of Patent: May 10, 1994
    Assignee: Robert Bosch GmbH
    Inventors: Hermann Dietz, Werner Grunwald, Claudio de la Prieta
  • Patent number: 5010315
    Abstract: A thermal radiation sensor is suggested which comprises two receiver surfaces exposed to the radiation, one receiver surface (1) having a high absorption capacity with respect to the thermal radiation, the other (2) having a low absorption capacity, the two receiver surfaces (1) and (2) consist of a NTC resistance material and are combined in a bridge circuit together with two temperature-independent cermet resistors (3) and (4). In order to prevent a dependency of the measurements of such a sensor on the ambient temperature, the NTC resistors (1) and (2) comprise underlying heating layers (6) and (7) which keep the two NTC resistors at a constant temperature. Insulating layers (8) and (9) are provided between the NTC resistors (1) and (2) and the heating layers (6) and (7). The heating layers (6) and (7) consist of a cermet thick film with platinum or of a platinum thick film and have the shape of a meander. The insulating layers (8) and ( 9) preferably consist of a crystallizing glass.
    Type: Grant
    Filed: August 18, 1989
    Date of Patent: April 23, 1991
    Assignee: Robert Bosch GmbH
    Inventors: Horst Fedter, Werner Grunwald, Peter Nolting, Claudio de la Prieta, Kurt Schmid