Patents Examined by Geraldina Visconti
  • Patent number: 11760931
    Abstract: The present invention relates to liquid-crystalline media comprising one or more mesogenic compounds of formula I as set forth hereinafter, wherein the one or more compounds of formula I are contained in the medium in an amount, based on the overall contents of the medium, of at least 15% by weight. The present invention further relates to a switching layer, a switching element and a window element containing the liquid-crystalline medium.
    Type: Grant
    Filed: December 3, 2018
    Date of Patent: September 19, 2023
    Assignee: Merck Patent GmbH
    Inventors: Michael Junge, Andreas Beyer, Mila Fischer, Ewa Ptak
  • Patent number: 11760933
    Abstract: Thermally conductive electrically insulating compositions and structures and devices comprising such materials. In various embodiments, such materials comprise liquid crystal polymer and fillers, wherein the fillers comprise boron nitride and glass fiber. In various embodiments, the liquid crystal polymer is selected from the group consisting of semi-aromatic copolyesters, copolyamides, polyester-co-amides, and mixtures thereof.
    Type: Grant
    Filed: August 26, 2021
    Date of Patent: September 19, 2023
    Assignee: Freudenberg-NOK General Partnership
    Inventors: Raymond L. Szparagowski, Michael Blake, Saikrishna Sundararaman
  • Patent number: 11760932
    Abstract: An object of the present invention is to provide a liquid crystal polymer film having a low dielectric loss tangent. In addition, an object of the present invention is to provide a laminate having the liquid crystal polymer film. The liquid crystal polymer film includes a liquid crystal polymer and a filler, in which, in a case where the liquid crystal polymer film includes one kind of the filler, a dielectric loss tangent of the filler under conditions of 25° C. and a frequency of 10 GHz is 0.0020 or less, and in a case where the liquid crystal polymer film includes two or more kinds of the fillers, a mass average value of dielectric loss tangents of the two or more kinds of the fillers under the conditions of 25° C. and a frequency of 10 GHz is 0.0020 or less, and a ratio of a volume occupied by the filler is 10% by volume or more with respect to a total volume of the liquid crystal polymer film.
    Type: Grant
    Filed: July 4, 2022
    Date of Patent: September 19, 2023
    Assignee: FUJIFILM Corporation
    Inventor: Hirotaka Kitagawa
  • Patent number: 11739266
    Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment (PS, PSA) and self-aligning (SA) type.
    Type: Grant
    Filed: December 4, 2019
    Date of Patent: August 29, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Qiong Tong, Rocco Fortte, Helmut Haensel, Edward Plummer, Timo Uebel, Oliver Heppert
  • Patent number: 11739270
    Abstract: The present invention provides a compound represented by the general formula (i), which has a partial structure Ki1 represented by one of the general formulae (K-1) to (K-6) and has a ring B with at least one P-Sp- group and with at least one Ri2 (Ri2 denotes a linear or branched alkyl group having 2 to 10 carbon atoms or a linear or branched halogenated alkyl group having 2 to 10 carbon atoms, —CH2— in the alkyl or halogenated alkyl group is optionally substituted with —CH?CH—, —O—, —COO—, or —OCO—, but —O— is not adjacent to another —O—). Thus, the compound in a liquid crystal composition adsorbs to substrates between which the liquid crystal composition (a liquid crystal layer) exists. The compound can hold vertically aligned liquid crystal molecules, can improve alignment stability, and can ensure low-temperature storage stability.
    Type: Grant
    Filed: February 14, 2019
    Date of Patent: August 29, 2023
    Assignee: DIC CORPORATION
    Inventors: Masanao Hayashi, Ayaki Hosono, Shota Kosaka
  • Patent number: 11739265
    Abstract: The present invention relates to aromatic isothiocyanates of formula U as defined in claim 1, to liquid-crystalline media comprising one or more compounds of formula U and to high-frequency components comprising these media, especially microwave components for high-frequency devices, such as devices for shifting the phase of microwaves, tunable filters, tunable metamaterial structures, and electronic beam steering antennas, e.g. phased array antennas.
    Type: Grant
    Filed: August 27, 2020
    Date of Patent: August 29, 2023
    Assignee: Merck Patent GmbH
    Inventors: Constanze Brocke, Dmitry Ushakov, Katharina Linke, Dagmar Klass, Carsten Fritzsch
  • Patent number: 11739269
    Abstract: An additive, liquid-crystal composition and a liquid-crystal display using the additive are provided. The additive includes a first additive molecule having a structure represented by formula (I): wherein Ri1, Ri2, Ri3, Ai1, Ai2, Zi, m1 and m2 are defined as in the specification.
    Type: Grant
    Filed: January 22, 2020
    Date of Patent: August 29, 2023
    Assignee: DAXIN MATERIALS CORPORATION
    Inventors: Chung-Hsien Wu, Wan-Yu Yang, Yi-Chun Lin, Chun-Chih Wang
  • Patent number: 11739267
    Abstract: LC media and LC displays containing an LC medium with positive dielectric anisotropy, which contains one or more compounds of formula I in a concentration of >0 and ?10% and displays addressed by an active matrix and in particular displays of the IPS, PS-IPS, FFS, PS-FFS, HB-FFS, U-IPS, TN, PS-TN, STN or TN-TFT mode.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: August 29, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Yeon-Jeong Han, Dong-Hyun Kim, Heui-Seok Jin, Chang-Suk Choi
  • Patent number: 11732191
    Abstract: Provided is a compound which is capable of reducing a tilt angle of a liquid crystal molecule, and a polymerizable composition, a cured product, an optical film, a polarizing plate, and an image display device, each using the compound. The compound is represented, for example, by Formula (I), P-Sp-Z-G1-(X1-Cy1)n-(X2-A1)m-X3-A2.
    Type: Grant
    Filed: September 27, 2021
    Date of Patent: August 22, 2023
    Assignee: FUJIFILM Corporation
    Inventors: Yuki Fukushima, Hiroshi Inada, Toshikazu Sumi, Shunya Katoh, Mitsuyoshi Ichihashi
  • Patent number: 11725145
    Abstract: A diacetylene-based lyotropic liquid crystal mixture according to an embodiment includes by mixing diacetylene-based compounds containing iodide and triiodide Chemical Formula 1 and Chemical Formula 2. The lyotropic liquid crystal mixture may be prepared by synthesizing an [X]—C—Rm-[D]-Rn compound, synthesizing an [A+X?]—C—Rm-D-Rn compound, and synthesizing an [A+B?]—C—Rm-D-Rn compound. A thin polarizing film may be prepared through simple coating of a lyotropic liquid crystal mixture prepared by mixing diacetylene-based compounds containing iodide and triiodide.
    Type: Grant
    Filed: April 17, 2019
    Date of Patent: August 15, 2023
    Assignee: INDUSTRIAL COOPERATION FOUNDATION CHONBUK NATIONAL UNIVERSITY
    Inventors: Kwang Un Jeong, Yu Jin Choi, Seohee Park
  • Patent number: 11718790
    Abstract: The present invention relates to a method for the preparation of a homogeneous aligned liquid crystal polymer film, a polymer film obtainable from the corresponding method of production, and to the use of such polymer film for optical components and electro-optical decorative, as well as to components and devices comprising such polymer film.
    Type: Grant
    Filed: January 20, 2020
    Date of Patent: August 8, 2023
    Assignee: Merck Patent GmbH
    Inventors: Stephen Mulcahy, Eduardo Beltran Gracia, Owain Parri, Vicki Poole, James Allen, Kevin Adlem, Hassan Arasi
  • Patent number: 11708531
    Abstract: A liquid crystal composition for a display device, the composition includes compounds of Chemical Formulae 1-7 with the amounts and compounds defined herein.
    Type: Grant
    Filed: January 18, 2021
    Date of Patent: July 25, 2023
    Assignee: Samsung Display Co., Ltd.
    Inventors: Heung Shik Park, Kyeong Jong Kim, Ho Kil Oh, Jae Soo Jang
  • Patent number: 11708458
    Abstract: Disclosed herein are embodiments of a composition that can be used to make liquid crystalline networks using thiol-ene-based polymerization. In particular embodiments, the liquid crystalline networks can be formed by using the composition embodiments in additive manufacturing methods. The composition comprises a monomer, chain extender compound, and a crosslinker compound and each of these components can be selected so as to influence the thermomechanical and shape memory properties of the liquid crystalline networks and/or objects formed therewith.
    Type: Grant
    Filed: October 21, 2020
    Date of Patent: July 25, 2023
    Assignee: UT-Battelle, LLC
    Inventors: Orlando Rios, William G. Carter, Michael R. Kessler, Yuzhan Li, Monojoy Goswami
  • Patent number: 11708530
    Abstract: Organic ligands and methods for preparing a variety of organic ligands are provided. The subject methods provide for the preparation of organic ligands in high yield and purity for use as ligands for attachment to nanoparticles to enable the formation of three dimensional nanocapsules of stably associated organic ligand-functionalized nanoparticles. Compositions that include these nanocapsules, as well as methods of making the nanocapsules are also provided.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: July 25, 2023
    Assignee: The Regents of the University of California
    Inventors: Benjamin J. Stokes, Amir Keshavarz
  • Patent number: 11710895
    Abstract: Compositions, systems and methods for use in monitoring an environment or a formation. The compositions can include electrically conductive material that can be used as a sensor. The sensor can have a non-writeable, writeable, and stimulated state. A first signal is used to induce the non-writeable material into a writeable state. In the writeable state, the electrically conductive material has the capacity for actuation in response to an orthogonal signal. In response to the orthogonal signal, the electrically conductive material then undergoes a conformation or shape change. The conformational or shape change induces a strain or actuation that can be used to generate a signal. The stimulated state can be reversible, and in the absence of the orthogonal signal the electrically conductive material may resume its original shape or conformation.
    Type: Grant
    Filed: August 25, 2021
    Date of Patent: July 25, 2023
    Assignee: Saudi Arabian Oil Company
    Inventor: Peter Boul
  • Patent number: 11702595
    Abstract: The invention relates to novel anisotropic compounds of formula as well as to liquid crystalline mixtures, films and electro-optical devices comprising the compound.
    Type: Grant
    Filed: June 26, 2020
    Date of Patent: July 18, 2023
    Assignee: ROLIC TECHNOLOGIES AG
    Inventor: Sabrina Chappellet
  • Patent number: 11702597
    Abstract: The present invention relates to azo dye of formula I defined in claim 1, to a liquid crystalline medium comprising said azo dye, the use of said medium for optical, electrooptical and electronic purposes, in particular in devices for regulating the passage of energy from an outside space into an inside space, for example in windows. The invention further relates to a device containing the liquid crystalline medium according to the invention.
    Type: Grant
    Filed: September 23, 2019
    Date of Patent: July 18, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Peer Kirsch, Kerstin Altenburg, René Lutz, Susann Gunst, Michael Junge, Ursula Patwal
  • Patent number: 11697769
    Abstract: A polymerizable LC material comprising one or more reactive mesogenic compounds, one or more chiral compounds and a block copolymer that comprises at least one polyfluorooxetane block bonded to a polyether block, said polyfluorooxetane block having a repeating unit of the formula Further, a method for its preparation, a polymer film obtainable from a corresponding polymerizable LC material, a method of preparation of such polymer film, and the use of such polymer film and said polymerizable LC material in optical, electro-optical, decorative or security devices.
    Type: Grant
    Filed: December 3, 2021
    Date of Patent: July 11, 2023
    Assignee: Merck Patent GmbH
    Inventors: Stephen Mulcahy, Owain Llyr Parri, Sarabjot Kaur
  • Patent number: 11685863
    Abstract: The present invention relates to polymerisable compounds, to processes and intermediates for the preparation thereof, to liquid-crystal (LC) media comprising them, and to the use of the polymerisable compounds and LC media for optical, electro-optical and electronic purposes, in particular in LC displays, especially in LC displays of the polymer sustained alignment (PS, PSA) and self-aligning (SA) type.
    Type: Grant
    Filed: February 14, 2020
    Date of Patent: June 27, 2023
    Assignee: MERCK PATENT GMBH
    Inventors: Helmut Haensel, Qiong Tong, Rocco Fortte, Edward Plummer, Thomas Eichhorn
  • Patent number: 11674083
    Abstract: Provided are a thermoplastic polymer capable of reducing a dielectric dissipation factor in high frequency bands and a film thereof. The thermoplastic liquid crystal polymer includes repeating units represented by the following formulae (I), (II), (III) and (IV), in which a molar ratio of a total amount of the repeating units represented by formulae (I) and (II) to a total amount of all the repeating units in the thermoplastic liquid crystal polymer is 50 to 90 mol %, and a molar ratio of the repeating unit represented by formula (III) to the repeating unit represented by formula (IV) is the former/the latter=23/77 to 77/23.
    Type: Grant
    Filed: September 20, 2019
    Date of Patent: June 13, 2023
    Assignee: KURARAY CO., LTD.
    Inventors: Takafumi Konno, Tatsuya Sunamoto, Michiyuki Nanba, Tetsuya Hara