Bondu
François Bondu, Servon Sur Vilaine FR
Patent application number | Description | Published |
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20130100973 | DEVICE FOR PRODUCING HIGH FREQUENCIES BY MEANS OF LIGHT FREQUENCY BEATING - In the field of the production of very high frequencies, for example from 1 gigahertz to several terahertz, by beating the frequencies of two laser beams together, a device includes a resonant optical cavity having very stable dimensions receiving the beams, with for each beam, an interrogation device of the resonant cavity supplying an electrical signal representing the difference in frequency between the light frequency of the beam and a resonance frequency of the resonant cavity. The frequency of each beam is servo controlled to minimize the frequency difference observed. The laser beams are produced by a dual-frequency laser producing two beams of different frequencies and orthogonal polarizations. A polarization separator is used for separate servo control of the beams according to polarization, and a polarizer is placed behind a main output of the resonant cavity producing an electromagnetic beam mixing the two polarizations and amplitude-modulated at the beat frequency. | 04-25-2013 |
20130141174 | OSCILLATOR FOR GENERATING A SIGNAL COMPRISING A TERAHERTZ-ORDER FREQUENCY USING THE BEAT OF TWO OPTICAL WAVES - The invention concerns an oscillator generating a wave composed of a frequency of on the order of terahertz from a beat of two optical waves generated by a dual-frequency optical source ( | 06-06-2013 |
François Bondu, Servon Sur Vilaine FR
Patent application number | Description | Published |
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20130100973 | DEVICE FOR PRODUCING HIGH FREQUENCIES BY MEANS OF LIGHT FREQUENCY BEATING - In the field of the production of very high frequencies, for example from 1 gigahertz to several terahertz, by beating the frequencies of two laser beams together, a device includes a resonant optical cavity having very stable dimensions receiving the beams, with for each beam, an interrogation device of the resonant cavity supplying an electrical signal representing the difference in frequency between the light frequency of the beam and a resonance frequency of the resonant cavity. The frequency of each beam is servo controlled to minimize the frequency difference observed. The laser beams are produced by a dual-frequency laser producing two beams of different frequencies and orthogonal polarizations. A polarization separator is used for separate servo control of the beams according to polarization, and a polarizer is placed behind a main output of the resonant cavity producing an electromagnetic beam mixing the two polarizations and amplitude-modulated at the beat frequency. | 04-25-2013 |
20130141174 | OSCILLATOR FOR GENERATING A SIGNAL COMPRISING A TERAHERTZ-ORDER FREQUENCY USING THE BEAT OF TWO OPTICAL WAVES - The invention concerns an oscillator generating a wave composed of a frequency of on the order of terahertz from a beat of two optical waves generated by a dual-frequency optical source ( | 06-06-2013 |
Lucien Bondu, Clermont-Ferrand FR
Patent application number | Description | Published |
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20140150949 | BEAD OF A TIRE FOR A HEAVY VEHICLE OF CONSTRUCTION PLANT TYPE - The invention relates to improving the endurance of the beads of a radial tire for a heavy vehicle of construction plant type, by reducing the cracking that starts at the surface of contact between a first polymer filling material that is radially furthest towards the inside and in contact with the bead wire and a second polymer filling material that is radially on the outside of the first polymer filling material. According to the invention, a transition element, made of a polymer transition material, is in contact, via its radially inner face, with the first polymer filling material and is in contact, via its radially outer face, with the second polymer filling material, and the elastic modulus at 10% elongation of the polymer transition material is somewhere between the respective elastic moduluses at 10% elongation of the first and second polymer filling materials. | 06-05-2014 |
20140158272 | BEAD OF A TIRE FOR A HEAVY VEHICLE OF CONSTRUCTION PLANT TYPE - The invention relates to improving the endurance of the beads of a radial tire for a heavy vehicle of construction plant type by reducing the cracking that starts at the end of the turn-up and spreads through the polymer coating, edging and filling materials. According to the invention, a transition element, made of a polymer transition material, is at least partially in contact, on its axially outer face, with the polymer edging material and, on its axially inner face, with a polymer filling material, the radially outer and radially inner ends of the transition element are respectively radially on the outside and radially on the inside of the end of the turn-up and the elastic modulus at 10% elongation of the polymer transition material is somewhere between the respective elastic moduluses at 10% elongation of the polymer edging material and of the polymer filling material with which the transition element is in contact. | 06-12-2014 |
Vinod Kumar Reddy Bondu US
Patent application number | Description | Published |
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20120276199 | TASTE MASKED PHARMACEUTICAL FORMULATIONS - The present invention relates to taste masked pharmaceutical formulations, processes for preparing the same and methods of using them. The present invention relates to taste masked effervescent formulations comprising fexofenadine or a pharmaceutically acceptable salt thereof, processes for preparing the same, and therapeutic uses and methods of treatment employing such formulations. | 11-01-2012 |