Patents by Inventor Bogdan Serban
Bogdan Serban 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: 8288649Abstract: A solar cell may include a quantum dot and an electron conductor. A bifunctional ligand may be disposed between the quantum dot and the electron conductor. The ligand molecule may include an electron conductor anchor that bonds to the electron conductor and a first quantum dot anchor that bonds to the quantum dot. A hole conductor such as a conductive polymer may include a second quantum dot anchor.Type: GrantFiled: February 25, 2009Date of Patent: October 16, 2012Assignee: Honeywell International Inc.Inventors: Bogdan Serban, Mihai N. Mihaila, Viorel Georgel Dumitru, Stephan Dan Costea
-
Patent number: 8283561Abstract: A solar cell including a quantum dot and an electron conductor, and a bifunctional ligand disposed between the quantum dot and the electron conductor. The bifunctional ligand molecule may include an electron conductor anchor that bonds to the electron conductor and a first quantum dot anchor that bonds to the quantum dot. A hole conductor such as a conductive polymer may include a second quantum dot anchor.Type: GrantFiled: March 26, 2009Date of Patent: October 9, 2012Assignee: Honeywell International Inc.Inventors: Bogdan Serban, Mihai N. Mihaila, Stefan Dan Costea, Viorel Georgel Dumitru
-
Patent number: 8227687Abstract: A solar cell is disclosed that may include a quantum dot, an electron conductor, and a bifunctional ligand disposed between the quantum dot and the electron conductor. The bifunctional ligand may include a first anchor group that bonds to the quantum dot and a second anchor group that bonds to the electron conductor. The solar cell may include a hole conductor that is configured to reduce the quantum dot once the quantum dot absorbs a photon and ejects an electron through the bifunctional ligand and into the electron conductor. The hole conductor may be a p-type polymer.Type: GrantFiled: January 28, 2010Date of Patent: July 24, 2012Assignee: Honeywell International Inc.Inventors: Bogdan Serban, Mihai N. Mihaila, Stephan Dan Costea, Octavian Buiu
-
Patent number: 8227686Abstract: A solar cell is disclosed that may include a quantum dot, an electron conductor, and a bifunctional ligand disposed between the quantum dot and the electron conductor. The bifunctional ligand may include a first anchor group that bonds to the quantum dot and a second anchor group that bonds to the electron conductor. The solar cell may include a hole conductor that is configured to reduce the quantum dot once the quantum dot absorbs a photon and ejects an electron through the bifunctional ligand and into the electron conductor. The hole conductor may be a p-type polymer.Type: GrantFiled: January 28, 2010Date of Patent: July 24, 2012Assignee: Honeywell International Inc.Inventors: Bogdan Serban, Mihai N. Mihaila, Stephan Dan Costea, Mircea Bercu
-
Publication number: 20120164029Abstract: Chemical sensors such as carbon dioxide sensors and methods for making such sensors are disclosed. An example carbon dioxide sensor may include a substrate, with a sensing beam supported by the substrate. The sensing beam may be configured to resonant. A sensing layer may be disposed on the sensing beam, wherein the sensing layer may include an amino group and is configured to sense carbon dioxide. In some instances, a reference beam may also be supported by the substrate, and may be configured to resonant. A reference layer may be disposed on the reference beam, wherein the reference layer may includes an amino group that has been poisoned so that it will be substantially non-sensitive to carbon dioxide.Type: ApplicationFiled: December 21, 2011Publication date: June 28, 2012Applicant: HONEYWELL ROMANIA S.R.L.Inventors: Bogdan Serban, Mihai N. Mihalia, Cornel Cobianu, Viorel Georgel Dumitru, Octavian Buiu
-
Patent number: 8184106Abstract: A position detection device including a substrate; a first ohmic resistor applied to the substrate and extending along an active surface of the position detector, whereby the first ohmic resistor is connected between a first terminal and a second terminal of the position detection device; a plurality of electric conductors connected to the first ohmic resistor at places that are distinct therefrom, the electric conductors extending from the first ohmic resistor inside the active surface alternating between the first electric conductors, whereby one first end of the conductor elements is connected to a third terminal of the position detection device. The conductor elements are configured as ohmic resistors extending through the active surface of the device and a second end of the conductor elements is connected to a fourth terminal of the position detection device.Type: GrantFiled: April 13, 2004Date of Patent: May 22, 2012Assignee: IEE International Electronics & Engineering S.A.Inventor: Bogdan Serban
-
Patent number: 8148632Abstract: Example solar cells and methods for making and using the same are disclosed. An example solar cell may include an electron conductor layer, a quantum dot layer, a bifunctional ligand layer coupling the electron conductor layer and the quantum dot layer, and a hole conductor layer coupled to the quantum dot layer. The bifunctional ligand layer may include an antibiotic, and in some cases, a cephalosporin-based antibiotic.Type: GrantFiled: July 14, 2009Date of Patent: April 3, 2012Assignee: Honeywell International Inc.Inventors: Bogdan Serban, Mihai N. Mihaila, Viorel Georgel Dumitru, Cazimir Bostan, Stephan Dan Costea, Mircea Bercu
-
Patent number: 8063886Abstract: A data input device with a film-based pressure sensor including a first carrier film, a second carrier film and a spacer. The spacer has an opening delimiting an active zone, in which first and second electrodes are arranged such that, in response to a compressive force, an electrical contact is established. A control circuit able to operate in at least a first and a second mode is configured to measure, in the first mode a quantity indicative of electrical resistance and, in the second mode, a quantity indicative of a capacitance.Type: GrantFiled: July 18, 2006Date of Patent: November 22, 2011Assignee: IEE International Electronics & Engineering S.A.Inventors: Bogdan Serban, Philippe Boyer, Aloyse Schoos
-
Publication number: 20110267300Abstract: A touchpad with an input area having a straight or curved main line of extension comprises a support element, a cover having a first surface facing away from the support element and a second surface facing towards the support element and one or more spacers arranged at a periphery of the input area. The one or more spacers mount the cover on the support element in such a way that the cover spans over the support plate in the input area while it is depressible towards the support element by a force acting on the input area of the touchpad. A resistive trace is so arranged on the support element that it extends along the main line of extension of the input area. At least one terminal contacts the resistive trace at a particular point of the main line of extension of the input area and a set of detection electrodes is arranged on the second surface of the cover in facing relationship with the resistive trace.Type: ApplicationFiled: July 29, 2008Publication date: November 3, 2011Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.Inventors: Bogdan Serban, Philippe Boyer, David Hoyer
-
Publication number: 20110239759Abstract: A differential resonant sensor apparatus and method for detecting relative humidity in an ambient air. The apparatus generally includes a sensing loop, a reference loop and a mixer. A hydrophilic sensing layer can be deposited on a sensing resonant beam and a corresponding hydrophobic reference layer can be deposited on a reference resonant beam for detecting water vapor concentration in the ambient air. The hydrophobic reference layer possesses similar visco-elastic properties as the hydrophilic sensing layer with no water absorption properties. A differential reading electronic circuit may be interconnected with each resonant beam for signal processing. The absorbed humidity with respect to the sensing resonant beam changes the mechanical resonance frequency, which can be detected as a change in the electric resonance frequency of the associated electronic circuit.Type: ApplicationFiled: September 30, 2010Publication date: October 6, 2011Applicant: Honeywell Romania S.R.L.Inventors: Cornel Cobianu, Bogdan Serban, Mihai N. Mihaila
-
Publication number: 20110113856Abstract: An all-differential resonant nanosensor apparatus for detecting multiple gasses and method of fabricating the same. The nanosensor apparatus generally includes a sensing loop, a reference loop, and a mixer. A sensing self assembled monolayer (SAM) or an ultrathin solid monolayer may be deposited on a sensing resonant beam associated with the sensing loop to detect the presence of the gas. A reference self assembled monolayer or an ultrathin solid film may be deposited on a reference resonant beam that possess similar visco-elastic properties (e.g., temperature, humidity and aging) as the sensing monolayer with no sensing properties. A differential reading electronic circuit may be interconnected with each resonant beam pair for signal processing. A drift-free frequency signal per each gas may be obtained by subtracting the frequency response from the sensing loop and the reference loop.Type: ApplicationFiled: November 13, 2009Publication date: May 19, 2011Inventors: Cornel Cobianu, Bogdan Serban
-
Patent number: 7800586Abstract: A data input device including plural keys that are arranged over at least two lines. A unidirectional position detector is associated with each line of keys and each unidirectional position detector includes a first input connection, a second input connection, and an output connection. The output connections of the unidirectional position detectors are connected at different locations to a first ohmic resistor. In addition, the first input connections are connected to a first terminal of the data input device and the second input connections are connected to a second terminal of the data input device.Type: GrantFiled: November 24, 2003Date of Patent: September 21, 2010Assignee: IEE International Elecronics & Engineering S.A.Inventors: Bogdan Serban, Philippe Boyer
-
Publication number: 20100193026Abstract: A solar cell is disclosed that may include a quantum dot, an electron conductor, and a bifunctional ligand disposed between the quantum dot and the electron conductor. The bifunctional ligand may include a first anchor group that bonds to the quantum dot and a second anchor group that bonds to the electron conductor. The solar cell may include a hole conductor that is configured to reduce the quantum dot once the quantum dot absorbs a photon and ejects an electron through the bifunctional ligand and into the electron conductor. The hole conductor may be a p-type polymer.Type: ApplicationFiled: January 28, 2010Publication date: August 5, 2010Applicant: Honeywell International Inc.Inventors: Bogdan Serban, Mihai N. Mihaila, Stefan Dan Costea, Octavian Buiu
-
Publication number: 20100193025Abstract: A solar cell is disclosed that may include a quantum dot, an electron conductor, and a bifunctional ligand disposed between the quantum dot and the electron conductor. The bifunctional ligand may include a first anchor group that bonds to the quantum dot and a second anchor group that bonds to the electron conductor. The solar cell may include a hole conductor that is configured to reduce the quantum dot once the quantum dot absorbs a photon and ejects an electron through the bifunctional ligand and into the electron conductor. The hole conductor may be a p-type polymer.Type: ApplicationFiled: January 28, 2010Publication date: August 5, 2010Applicant: Honeywell International Inc.Inventors: Bogdan Serban, Mihai N. Mihaila, Stefan Dan Costea, Mircea Bercu
-
Publication number: 20100107770Abstract: A capacitive pressure includes a laminated arrangement with a first flexible, electrically insulating carrier film carrying a first capacitor electrode, a second flexible, electrically insulating carrier film carrying a second capacitor electrode and a flexible, electrically insulating spacer film sandwiched between the first and second carrier films, where the spacer film has a through-hole or recess therein, with respect to which the first and second capacitor electrodes are arranged opposite one another, in such a way that the first and second electrodes are brought closer together by resilient bending of the first and/or second carrier film into the through-hole or recess under the action of a compressive force acting on the pressure sensor.Type: ApplicationFiled: February 21, 2008Publication date: May 6, 2010Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.Inventors: Bogdan Serban, Philippe Boyer, Aloyse Schoos
-
Publication number: 20090015368Abstract: A data input device includes a first electrode structure having a first collector electrode and a first plurality of finger electrodes extending from the first collector electrode and a second electrode structure including a second collector electrode and a second plurality of finger electrodes extending from the second collector electrode, the first and second electrode structures being arranged on a first carrier layer in such a way, that in an active area of the data input device, the first plurality of finger electrodes extend between the second plurality in an interdigitating arrangement.Type: ApplicationFiled: January 25, 2007Publication date: January 15, 2009Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.Inventors: Bogdan Serban, Philippe Boyer, Johann Bar
-
Publication number: 20080202251Abstract: A capacitive pressure comprises a laminated arrangement with a first flexible, electrically insulating carrier film carrying a first capacitor electrode, a second flexible, electrically insulating carrier film carrying a second capacitor electrode and a flexible, electrically insulating spacer film sandwiched between the first and second carrier films. The spacer film has a through-hole or recess therein, with respect to which the first and second capacitor electrodes are arranged opposite one another, in such a way that the first and second electrodes are brought closer together by resilient bending of the first and/or second carrier film into the through-hole or recess under the action of a compressive force acting on the pressure sensor.Type: ApplicationFiled: February 27, 2007Publication date: August 28, 2008Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.Inventors: Bogdan Serban, Philippe Boyer, Aloyse Schoos
-
Publication number: 20080018611Abstract: An input device comprises a capacitive proximity and pressure sensor, which includes a first carrier layer, a second carrier layer and a spacer arranged between the first and second carrier layers, the first carrier layer having a first capacitor electrode applied thereon, the second carrier layer having a second capacitor electrode applied thereon, the first and second capacitor electrodes being arranged opposite one another with respect to the spacer in such a way that, in response to a compressive force acting on the pressure sensor, the first and second capacitor electrodes are brought closer together. The input device further comprises a control circuit configured so as to operate in at least two modes of operation, including a first and a second mode of operation.Type: ApplicationFiled: February 27, 2007Publication date: January 24, 2008Applicant: IEE INTERNATIONAL ELECTRONICS & ENGINEERING S.A.Inventors: Bogdan Serban, Philippe Boyer, Aloyse Schoos
-
Publication number: 20080018608Abstract: A data input device is provided with a film-based pressure sensor build from a first carrier film, a second carrier film and a spacer arranged between the carrier films for keeping them at a distance from one another. The spacer has an opening delimiting an active zone, in which first and second electrodes are arranged in such a way that, in response to a compressive force acting on the active zone, an electrical contact is established between the first and second electrodes. A control circuit able to operate in at least a first and a second mode of operation is configured so as to measure, in the first mode of operation, a quantity indicative of electrical resistance between the first and second electrodes for detecting an amount or a position of a compressive force acting on the active zone and, in the second mode of operation, a quantity indicative of a capacitance for detecting a person or an object approaching thereto.Type: ApplicationFiled: July 18, 2006Publication date: January 24, 2008Inventors: Bogdan Serban, Philippe Boyer, Aloyse Schoos
-
Publication number: 20070074577Abstract: A pressure sensor is constructed of a plastic package. The plastic package incorporates in the same material a sensing diaphragm including tensile and compression regions. Deposited on the diaphragm are metal electrodes and a polymer film having piezoresistive properties. The electrodes and/or the polymer film are directly printed onto the plastic package without the use of a mask.Type: ApplicationFiled: October 5, 2005Publication date: April 5, 2007Inventors: Cornel Cobianu, Stephen Shiffer, Bogdan Serban, Alistair Bradley, Mihai Mihaila