Patents Assigned to Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V.
  • Patent number: 10295738
    Abstract: An electro-optical modulator is provided. The modulator comprises a first and a second optical waveguide, at least one first capacitance, via which a voltage can be applied to a light-guiding region of the first optical waveguide, at least one second capacitance, via which a voltage can be applied to a light-guiding region of the second optical waveguide, an electrically conductive region, via which the first and second capacitances are electrically connected to one another, and a feed line to the electrically conductive region, via which feed line a DC voltage can be applied to the electrically conductive region, wherein the feed line is constituted such that it represents an electrical resistance connected in parallel with the second capacitance, and a compensation resistance connected in parallel with the first capacitance and serving for reducing transients in a voltage profile on the first and second capacitances during the operation of the modulator.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: May 21, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventor: Heinz-Gunter Bach
  • Publication number: 20190142556
    Abstract: The invention relates to glass-ceramics based on the lithium silicate system which can be mechanically machined easily in an intermediate step of crystallisation and, after complete crystallisation, represent a very strong, highly-translucent and chemically-stable glass-ceramic. Likewise, the invention relates to a method for the production of these glass-ceramics. The glass-ceramics according to the invention are used as dental material.
    Type: Application
    Filed: December 20, 2018
    Publication date: May 16, 2019
    Applicants: FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V., VITA Zahnfabrik H. Rauter GmbH & Co. KG, DeguDent GmbH
    Inventors: Bernhard DURSCHANG, Jörn PROBST, Norbert THIEL, Joachim BIBUS, Markus VOLLMANN, Udo SCHUSSER
  • Patent number: 10288480
    Abstract: An optical filter for an optical data transmission system, including a substrate; a first and a second reflective structure which are spaced apart from each other such that they form a Fabry-Perot cavity, and at least one optical waveguide formed on or in the substrate, via which light can be coupled into the Fabry-Perot cavity and/or out of the Fabry-Perot cavity. The Fabry-Perot cavity formed by the first and the second reflective structure at least partly is a free-beam cavity, and the waveguide is an integrated waveguide which is formed by one or more layers arranged on the substrate, and the first and the second reflective structure are at least partly arranged in a cutout of the substrate or adjoin the cutout.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: May 14, 2019
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Martin Schell, Magnus Happach
  • Patent number: 10281647
    Abstract: The invention relates to an optical waveguide with at least one core region (1) extending along the longitudinal extent of the optical waveguide, and with a first jacket (2) which, viewed in the cross section of the optical waveguide, surrounds the core region (1). The invention further relates to an optical arrangement with such an optical waveguide, and to a method for producing the optical waveguide. The object of the invention is to make available an optical waveguide for high-performance operation, which is improved in relation to the prior art in terms of mode instability. The invention achieves this object by virtue of the fact that the optical waveguide consists of crystalline material at least in the core region (1).
    Type: Grant
    Filed: October 1, 2015
    Date of Patent: May 7, 2019
    Assignees: Fraunhofer-Gesellschaft zur Forderung der angewandten Forschung e.V., Friedrich-Schiller-Universitat Jena
    Inventors: Cesar Jauregui Misas, Andreas Tunnermann, Jens Limpert, Christian Gaida
  • Patent number: 10283821
    Abstract: The invention relates to a battery comprising a battery housing and at least one battery cell and at least one fiber optic sensor which has at least one waveguide with a core and a material surrounding said core. At least one fiber Bragg grating is introduced in the core and is mechanically coupled to the battery housing and/or to the battery cell in order to detect a change in size of the battery housing and/or of the battery cell. At least a second fiber Bragg grating is introduced in the core and is mechanically decoupled from the battery housing and the battery cell. The invention further relates to a method for the open loop or closed loop control of the charging and/or discharging of a battery, measurement values being acquired by at least one fiber optic sensor.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: May 7, 2019
    Assignees: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V., Stobich Technology GmbH
    Inventors: Wolfgang Schade, Jochen Stöbich
  • Patent number: 10283630
    Abstract: The invention relates to a semiconductor component comprising at least one field effect transistor, said transistor comprising at least a back barrier layer, a buried layer arranged on the back barrier layer, a channel layer arranged on the buried layer, a barrier layer arranged on the channel layer, and a gate layer arranged on the barrier layer, wherein the barrier layer comprises AlzGa1-zN and wherein the buried layer comprises AlxGa1-xN and at least one dopant causing a p-type conductivity, and wherein the gate layer comprises any of GaN and/or AluInvGa1-v-uN. A field effect transistor according to the disclosure may be configured to show a gate threshold voltage which is higher than approximately 0.5 V or higher than approximately 1.0 V.
    Type: Grant
    Filed: June 27, 2017
    Date of Patent: May 7, 2019
    Assignee: Fraunhofer-Gesellschaft Zur Forderung Der Angewandten Forschung E.V.
    Inventor: Fouad Benkhelifa
  • Patent number: 10285140
    Abstract: Embodiments of the present invention disclose a power estimation method and apparatus. On a premise of controlling interference caused by a second node to a first node to be within a range, a transmit power of the second node can be increased so as to improve communication quality of the second node. A specific solution is: obtaining an estimated load value of each first node in N first nodes according to a transmit power and user service requirements of each first node that are obtained and according to a transmit power set for each second node in M second nodes, and further, respectively using the transmit power set for each second node as an allowed transmit power of each second node according to the estimated load value of each first node in the N first nodes.
    Type: Grant
    Filed: April 28, 2017
    Date of Patent: May 7, 2019
    Assignees: Huawei Technologies Co., Ltd., Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Hongcheng Zhuang, Andrian Beletchi, Jietao Zhang
  • Publication number: 20190132048
    Abstract: It are provided an optical communication system and an optical communication method. The system comprising at least two optical channels for communicating optical data signals; at least one optical filter arrangement for compensating distortions of the optical data signals communicated via the optical channels and/or crosstalk between the optical channels. The optical filter arrangement comprises at least one optical filter assigned to one of the optical channels and at least one optical filter assigned to the other one of the optical channels, wherein each one of the optical filters is configurable in such a way that different wavelength components of an incoming optical signal will be modified individually.
    Type: Application
    Filed: June 8, 2016
    Publication date: May 2, 2019
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Christian SCHMIDT, Volker JUNGNICKEL
  • Patent number: 10273538
    Abstract: The invention relates to a novel method of error-free sequencing of DNA. Further, the present invention provides for a four-part oligonucleotide, comprising a fixed sequence, a randomized sequence, a restriction nuclease recognition site and/or restriction site, and a primer binding site. The invention also relates to the use of the sequenced DNA fragments obtained by the methods of the invention in methods for DNA sequence analysis, generation of cell lineage trees or assessment of copy numbers.
    Type: Grant
    Filed: February 5, 2015
    Date of Patent: April 30, 2019
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Christoph Klein, Stefan Kirsch, Zbigniew Tadeusz Czyz, Urs Lahrmann
  • Patent number: 10276631
    Abstract: A method for producing a micro-LED matrix by (A) depositing an LED layer structure onto a working substrate; (B) singulating a plurality of LED structures from the LED layer structure on the working substrate; (C) applying a first contact-making structure to a carrier substrate; and (D) transferring the plurality of LED structures from the working substrate to the carrier substrate by bonding and laser lift-off. An at least two-layered carrier substrate is used, including a carrier layer and a first flexible polymer layer, in step C the first contact-making structure is applied indirectly or directly to a side of the first polymer layer which faces away from the carrier layer, and in an additional method step D-0 between method steps C and D, a second flexible polymer layer is formed at least between the singulated LED structures. A micro-LED matrix and use are also provided.
    Type: Grant
    Filed: October 1, 2013
    Date of Patent: April 30, 2019
    Assignees: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V., Albert-Ludwigs-Universität Freiburg
    Inventors: Christian Gossler, Ulrich Schwarz, Patrick Ruther
  • Patent number: 10259201
    Abstract: The invention relates to a composite comprising (i) a plastics component or (ii) a semifinished plastics product with a protective layer system, where the protective layer system comprises a plastics film and an organosilicon plasma polymer layer, the organosilicon plasma polymer layer is arranged between the (i) plastics component or the (ii) semifinished plastics product and the plastics film and, after the hardening of the (i) plastics component or of the (ii) semifinished plastics product, the organosilicon plasma polymer layer adheres more securely to the plastics film than to the (i) plastics component or the (ii) semifinished plastics product.
    Type: Grant
    Filed: April 26, 2013
    Date of Patent: April 16, 2019
    Assignee: Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V.
    Inventors: Klaus-Dieter Vissing, Matthias Ott, Gregor Grassl
  • Patent number: 10261188
    Abstract: An apparatus for capturing superimposed distance and intensity images includes a distance image measuring arrangement provided with a distance radiation source, an intensity radiation source, a distance detection unit and an intensity detection unit. Distance measurement radiation from the distance radiation source and intensity measurement radiation from the intensity radiation source are incident on an area of a surface of a test object via a jointly used radiation deflection unit. The optical components of the distance image measuring arrangement and the intensity image measuring arrangement are mounted on a support structure in a fixed spatial relationship with respect to each other. Distance and intensity images are thus superimposed in an optically positionally accurate manner to produce high-quality real-time images.
    Type: Grant
    Filed: January 22, 2015
    Date of Patent: April 16, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Alexander Reiterer, Harald Wölfelschneider, Nikolaos Dimopoulos, Heinrich Höfler
  • Patent number: 10259829
    Abstract: The invention relates to a silane or silane mixture obtainable by reacting a hydrolysable silane of the formula (A): SiR4 in which R is a hydrolytically condensable group or hydroxyl with a compound R*(OH)x where x is 1, 2, 3 or greater 3, where R* has a straight-chain or branched hydrocarbon skeleton which, according to the number x, is monovalent, divalent, trivalent or multivalent, and has a hydrocarbonaceous chain interrupted by at least two —C(O)O— groups, wherein there are a maximum of 8 successive carbon atoms in the individual hydrocarbon units formed by interruptions within this chain and the, or in the case of branched structures at least one, end of the hydrocarbonaceous chain at the opposite end to the sole hydroxyl group or one of the hydroxyl groups bears an organically polymerizable group, wherein the alcohol is otherwise unsubstituted or has further substituents.
    Type: Grant
    Filed: August 28, 2015
    Date of Patent: April 16, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Herbert Wolter, Somchith Nique, Kerstin Obel
  • Patent number: 10252014
    Abstract: A device and system for delivering an aerosol to a patient on ventilatory support comprise a contact component 10 to be positioned in contact with a respiratory organ. The contact component 10 comprises a lumen 18a, 20a, 24 through which breathing gas and an aerosol are delivered to lungs of a patient.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: April 9, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FORDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Daniela Rahmel, Friedemann Taut, Christian De Muynck, Peter Iwatschenko, Wolfgang Koch, Gerhard Pohlmann, Horst Windt
  • Publication number: 20190100856
    Abstract: The invention relates to a method for the production of thermally stabilised melt-spun fibres in which polyacrilonitrile (PAN) fibres or PAN fibre precursors produced by melt-spinning are treated in an aqueous alkaline solution, comprising in addition a solvent for PAN. Likewise, the invention relates to fibres which are producible according to this method.
    Type: Application
    Filed: March 22, 2016
    Publication date: April 4, 2019
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E. V.
    Inventors: Mats Timothy KNOOP, Antje LIESKE
  • Patent number: 10247998
    Abstract: An electro-optic Mach-Zehnder modulator includes a first optical waveguide forming a first arm of the Mach-Zehnder modulator, and a second optical waveguide forming a second arm thereof. The first or second optical waveguide includes capacitive segments that are spaced apart from one another, each forming an electrical capacitor. A travelling wave electrode arrangement applies a voltage across the first or second optical waveguide. The travelling wave electrode arrangement includes waveguide electrodes arranged on the capacitive segments , an electrical line extending along a part of the first or second optical waveguide, the electrical line being arranged a distance from the waveguide electrodes, and connecting arrangements, each being assigned to one of the waveguide electrodes.
    Type: Grant
    Filed: June 20, 2012
    Date of Patent: April 2, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Karl-Otto Velthaus, Detlef Hoffmann, Marko Gruner
  • Patent number: 10247583
    Abstract: A fiber optic sensor may be provided comprising an optical waveguide having at least one first core and a cladding surrounding the first core, wherein the first core extends substantially over the entire length of the optical waveguide and at least one Bragg grating is introduced into the first core, wherein the Bragg grating has an elongated cross section, wherein the short semi-axis is smaller than the diameter of the first core and the center of gravity of the cross section of the at least one Bragg grating lies on the axis of symmetry of the optical waveguide. A method may be provided for determining torsion with such a sensor. A method for the production of such a sensor may be provided.
    Type: Grant
    Filed: June 23, 2015
    Date of Patent: April 2, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Wolfgang Schade, Christian Waltermann
  • Patent number: 10247856
    Abstract: A method for producing an antireflection layer on a silicone surface is described. The method includes application of an organic layer, production of a nanostructure in the organic layer by a plasma etching process, and application of at least one cover layer onto the nanostructure. An optical element can be produced by the method.
    Type: Grant
    Filed: April 22, 2015
    Date of Patent: April 2, 2019
    Assignee: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Ulrike Schulz, Friedrich Rickelt, Peter Munzert, Norbert Kaiser
  • Publication number: 20190094461
    Abstract: It is provided a circuit assembly, comprising at least one electronic circuit; at least one optical waveguide, wherein the core and the cladding of the optical waveguide are formed of an amorphous material; at least one carrier on which the optical waveguide is arranged; and at least one electro-optically active material layer electrically connected to the electronic circuit. The at least one electro-optically active material layer at least partially extends in the optical waveguide and the electrical connection between the electronic circuit and the at least one electro-optically active material layer is produced in that at least one electrical contact extends from the electronic circuit through at least one section of the cladding of the optical waveguide to the at least one electro-optically active material layer or is connected to a section of the electro-optically active material layer, which protrudes from the cladding of the optical waveguide.
    Type: Application
    Filed: February 21, 2017
    Publication date: March 28, 2019
    Applicant: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V.
    Inventors: Moritz KLEINERT, Martin SCHELL
  • Publication number: 20190091636
    Abstract: The subject of the invention is new membranes in which tailor-made membrane transport proteins (such as e.g. TCDB classified proteins) act as pore-forming proteins (e.g. FhuA) or peptides which act as pores in the membrane. The membranes can preferably be produced both by linking synthesised protein-polymer conjugates and by direct linking of the pore-forming proteins and peptides. Such membranes are distinguished by many outstanding features which existing membranes have not been able to offer to date.
    Type: Application
    Filed: March 1, 2017
    Publication date: March 28, 2019
    Applicants: FRAUNHOFER-GESELLSCHAFT ZUR FÖRDERUNG DER ANGEWANDTEN FORSCHUNG E.V., RHEINISCH-WESTFÄLISCHE TECHNISCHE HOCHSCHULE (RWTH) AACHEN
    Inventors: Himanshu CHARAN, Ulrich GLEBE, Alexander BÖKER, Murat TUTUS, Ulrich SCHWANEBERG, Leilei ZHU, Marco BOCOLA, Tayebeh MIRZAEIGARAKANI, Julia KINZEL, Deepak ANAND