Patents by Inventor Pierre Grandjean
Pierre Grandjean 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: 10600934Abstract: A group III-nitride semiconductor device comprises a light emitting semiconductor structure comprising a p-type layer and an n-type layer operable as a light emitting diode or laser. On top of the p-type layer there is arranged an n+ or n++-type layer of a group III-nitride, which is transparent to the light emitted from the underlying semiconductor structure and of sufficiently high electrical conductivity to provide lateral spreading of injection current for the light-emitting semiconductor structure.Type: GrantFiled: January 17, 2019Date of Patent: March 24, 2020Assignee: EXALOS AGInventors: Marco Malinverni, Marco Rossetti, Antonino Francesco Castiglia, Nicolas Pierre Grandjean
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Publication number: 20190148587Abstract: A group III-nitride semiconductor device comprises a light emitting semiconductor structure comprising a p-type layer and an n-type layer operable as a light emitting diode or laser. On top of the p-type layer there is arranged an n+ or n++-type layer of a group III-nitride, which is transparent to the light emitted from the underlying semiconductor structure and of sufficiently high electrical conductivity to provide lateral spreading of injection current for the light-emitting semiconductor structure.Type: ApplicationFiled: January 17, 2019Publication date: May 16, 2019Applicant: EXALOS AGInventors: Marco MALINVERNI, Marco ROSSETTI, Antonino Francesco CASTIGLIA, Nicolas Pierre GRANDJEAN
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Publication number: 20170236974Abstract: A group III-nitride semiconductor device comprises a light emitting semiconductor structure comprising a p-type layer and an n-type layer operable as a light emitting diode or laser. On top of the p-type layer there is arranged an n+ or n++-type layer of a group III-nitride, which is transparent to the light emitted from the underlying semiconductor structure and of sufficiently high electrical conductivity to provide lateral spreading of injection current for the light-emitting semiconductor structure.Type: ApplicationFiled: February 10, 2017Publication date: August 17, 2017Applicant: EXALOS AGInventors: Marco MALINVERNI, Marco ROSSETTI, Antonino Francesco CASTIGLIA, Nicolas Pierre GRANDJEAN
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Publication number: 20140107502Abstract: A method and apparatus concerning the retrieval and storage of status information obtained from patients having implantable medical devices (IMDs). When patients are having episodes during which symptoms are experienced relating to their medical condition, the collection of the patient's status information can be helpful to the patient's physician for diagnostic purposes. Telemetered signals recorded by the IMD can be transmitted from the IMD to a programmer. Such programmer is portable and sized so as to be carried by the patient. As such, mechanisms added to such programmers for use in retrieving and storing patient status information can provide more convenience for patients.Type: ApplicationFiled: December 18, 2013Publication date: April 17, 2014Applicant: MEDTRONIC, INC.Inventors: Pierre A. Grandjean, Ilaria Vicini, Barbro M. Kjellstrom
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Patent number: 8634925Abstract: A method and apparatus concerning the retrieval and storage of status information obtained from patients having implantable medical devices (IMDs). When patients are having episodes during which symptoms are experienced relating to their medical condition, the collection of the patient's status information can be helpful to the patient's physician for diagnostic purposes. Telemetered signals recorded by the IMD can be transmitted from the IMD to a programmer. Such programmer is portable and sized so as to be carried by the patient. As such, mechanisms added to such programmers for use in retrieving and storing patient status information can provide more convenience for patients.Type: GrantFiled: November 30, 2005Date of Patent: January 21, 2014Assignee: Medtronic, Inc.Inventors: Pierre A. Grandjean, Ilaria Vicini, Barbro M. Kjellstrom
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Patent number: 8396549Abstract: A method for pacing a left ventricle of a heart includes delivering a pacing pulse via a first electrode to activate a first papillary muscle and another pacing pulse via a second electrode to activate a second papillary muscle.Type: GrantFiled: April 28, 2004Date of Patent: March 12, 2013Assignee: Medtronic, Inc.Inventors: Chester W. Struble, Frits W. Prinzen, Pierre A. Grandjean
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Patent number: 8391978Abstract: A method and apparatus for adjusting the electrogram (EGM) sensitivity level of an implantable medical device using intracardiac pressure data. An EGM is monitored to detect electrical events and intracardiac pressure is monitored to detect pressure waves. The electrical waves and pressure waves are analyzed to determine the presence of a one-to-one correlation, with the absence of a one-to-one correlation indicating the need to adjust the sensitivity level.Type: GrantFiled: April 26, 2006Date of Patent: March 5, 2013Assignee: Medtronic, Inc.Inventors: Chester L. Struble, Pierre A. Grandjean
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Patent number: 7776154Abstract: The invention concerns a monocrystalline coating crack-free coating of gallium nitride or mixed gallium nitride and another metal, on a substrate likely to cause extensive stresses in the coating, said substrate being coated with a buffer layer, wherein: at least a monocrystalline layer of a material having a thickness ranging between 100 and 300 nm, preferably between 200 and 250 nm, and whereof crystal lattice parameter is less than the crystal lattice parameter of the gallium nitride or of the mixed gallium nitride with another metal, is inserted in the coating of gallium nitride or mixed gallium nitride with another metal. The invention also concerns the method for preparing said coating. The invention further concerns electronic and optoelectronic devices comprising said coating.Type: GrantFiled: August 1, 2007Date of Patent: August 17, 2010Assignee: Picogiga International SASInventors: Fabrice Semond, Jean Claude Massies, Nicolas Pierre Grandjean
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Patent number: 7767307Abstract: The invention concerns a monocrystalline coating crack-free coating of gallium nitride or mixed gallium nitride and another metal, on a substrate likely to cause extensive stresses in the coating, said substrate being coated with a buffer layer, wherein: at least a monocrystalline layer of a material having a thickness ranging between 100 and 300 nm, preferably between 200 and 250 nm, and whereof crystal lattice parameter is less than the crystal lattice parameter of the gallium nitride or of the mixed gallium nitride with another metal, is inserted in the coating of gallium nitride or mixed gallium nitride with another metal. The invention also concerns the method for preparing said coating. The invention further concerns electronic and optoelectronic devices comprising said coating.Type: GrantFiled: August 1, 2007Date of Patent: August 3, 2010Assignee: Centre National de la Recherche ScientifiqueInventors: Fabrice Semond, Jean Claude Massies, Nicolas Pierre Grandjean
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Publication number: 20100076519Abstract: The present invention is an apparatus and method for controlling blood pressure by stimulating the cardiac afferent sympathetic nerves. The invention may be implemented in a medical device having a pressure sensor for sensing blood pressure, an electrode for providing electrical signals to the cardiac afferent sympathetic nerves, and a controller for providing signals to the electrode as a function of blood pressure signals received from the pressure sensor.Type: ApplicationFiled: November 25, 2009Publication date: March 25, 2010Applicant: Medtronic, Inc.Inventors: Lilian Kornet, Pierre A. Grandjean
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Publication number: 20090117088Abstract: A system and method for treating damage myocardial tissue includes delivering replacement cells to the myocardium of a patient and electrically stimulating the spinal column of the patient to affect a cellular environment within the myocardium.Type: ApplicationFiled: October 30, 2008Publication date: May 7, 2009Inventor: Pierre A. Grandjean
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Publication number: 20070255151Abstract: A method and apparatus for adjusting the electrogram (EGM) sensitivity level of an implantable medical device using intracardiac pressure data. An EGM is monitored to detect electrical events and intracardiac pressure is monitored to detect pressure waves. The electrical waves and pressure waves are analyzed to determine the presence of a one-to-one correlation, with the absence of a one-to-one correlation indicating the need to adjust the sensitivity level.Type: ApplicationFiled: April 26, 2006Publication date: November 1, 2007Inventors: Chester Struble, Pierre Grandjean
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Patent number: 7273664Abstract: The invention concerns a monocrystalline coating crack-free coating of gallium nitride or mixed gallium nitride and another metal, on a substrate likely to cause extensive stresses in the coating, said substrate being coated with a buffer layer, wherein: at least a monocrystalline layer of a material having a thickness ranging between 100 and 300 nm, preferably between 200 and 250 nm, and whereof crystal lattice parameter is less than the crystal lattice parameter of the gallium nitride or of the mixed gallium nitride with another metal, is inserted in the coating of gallium nitride or mixed gallium nitride with another metal. The invention also concerns the method for preparing said coating. The invention further concerns electronic and optoelectronic devices comprising said coating.Type: GrantFiled: June 8, 2001Date of Patent: September 25, 2007Assignee: Picogiga International SASInventors: Fabrice Semond, Jean Claude Massies, Nicolas Pierre Grandjean
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Publication number: 20070156200Abstract: The present invention is an apparatus and method for controlling blood pressure by stimulating the cardiac afferent sympathetic nerves. The invention may be implemented in a medical device having a pressure sensor for sensing blood pressure, an electrode for providing electrical signals to the cardiac afferent sympathetic nerves, and a controller for providing signals to the electrode as a function of blood pressure signals received from the pressure sensor.Type: ApplicationFiled: December 29, 2005Publication date: July 5, 2007Inventors: Lilian Kornet, Pierre Grandjean
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Publication number: 20070123786Abstract: A method and apparatus concerning the retrieval and storage of status information obtained from patients having implantable medical devices (IMDs). When patients are having episodes during which symptoms are experienced relating to their medical condition, the collection of the patient's status information can be helpful to the patient's physician for diagnostic purposes. Telemetered signals recorded by the IMD can be transmitted from the IMD to a programmer. Such programmer is portable and sized so as to be carried by the patient. As such, mechanisms added to such programmers for use in retrieving and storing patient status information can provide more convenience for patients.Type: ApplicationFiled: November 30, 2005Publication date: May 31, 2007Inventors: Pierre Grandjean, Ilaria Vicini, Barbro Kjellstrom
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Publication number: 20070048289Abstract: A system and method for treating damage myocardial tissue includes delivering replacement cells to the myocardium of a patient and electrically stimulating the spinal column of the patient to affect a cellular environment within the myocardium.Type: ApplicationFiled: August 31, 2005Publication date: March 1, 2007Inventor: Pierre Grandjean
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Patent number: 7181272Abstract: The invention is directed to techniques for electrode placement around a heart. A harness having one or more attachment sites may be secured around the heart, and electrodes may be secured at the attachment sites as desired by the physician for the patient. The electrodes may be, for example, pacing and sensing electrodes, defibrillation electrodes, or any combination thereof. The harness holds the electrodes in place and also impedes the progress of ventricular dilation. The electrodes attached to the harness may be used for any of several purposes, such as cardiac resynchronization, selective defibrillation, measurement of impedance, pacing and cardioversion.Type: GrantFiled: April 22, 2002Date of Patent: February 20, 2007Assignee: Medtronic, Inc.Inventors: Chester Struble, Pierre A. Grandjean, Volkert A. Zeijlemaker, Karel F. A. A. Smits
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Patent number: 7069079Abstract: The hemodynamic operation of certain heart disease patient can be improved using pressure regulated atrio-ventricular delay. The pressure regulated atrio-ventricular delay involves recording atrial activation and ventricle activation, identifying a maximum diastolic pressure, identifying a declination pressure, calculating a percent decrease, and adjusting atrio-ventricular delay. The declination pressure occurs at the beginning of an isovolumetric contraction. The percent decrease is calculated between the maximum diastolic pressure and the declination pressure. The atrio-ventricular delay is adjusted according to the percent decrease between the maximum diastolic pressure and the declination pressure.Type: GrantFiled: April 24, 2003Date of Patent: June 27, 2006Assignee: Medtronic, Inc.Inventors: Chester L. Struble, Pierre A. Grandjean
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Patent number: 7058450Abstract: A plurality of sensors are disposed in and around the heart of a patient to collect data such as various electrical parameters, pressure parameters and temperature parameters. The data collected via the sensors may be organized and stored according to cardiac rhythm type. The organization of data according to cardiac rhythm type allows the patient's physician to be better able to monitor how the various parameters are related to the various cardiac rhythm types. In a typical embodiment, one or more of the sensors may be deployed on a single lead implanted in the heart.Type: GrantFiled: April 22, 2002Date of Patent: June 6, 2006Assignee: Medtronic, Inc.Inventors: Chester Struble, Lambert Muhlenberg, Pierre Grandjean
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Patent number: 6934586Abstract: In a system that provides bi-atrial and/or bi-ventricular pacing, the system adjusts an interval between paces delivered to the atria, and/or an interval between paces delivered to the ventricles, as a function of pressure data from the heart. In an exemplary embodiment, the system uses the pressure data from the ventricles to identify the times that each ventricle begins ejection of blood. The system may adjust the interval between paces to cause the ventricles to begin ejection at the same time, or to cause one ventricle to commence blood ejection prior to the other ventricle with a desired time offset. The system may further adjust the interval in response to changing conditions, such as a changing heart rate.Type: GrantFiled: April 22, 2002Date of Patent: August 23, 2005Assignee: Medtronic, Inc.Inventors: Chester Struble, Pierre Grandjean