Patents Examined by Anna Malloy
  • Patent number: 10883048
    Abstract: A polymerizable composition includes a polymerizable liquid crystal compound of Formula (I) and a urethane (meth)acrylate monomer including a urethane bond and three or more (meth)acryloyl groups: Q1-Sp1A-Lm-1A-Sp2-Q2??(I) In Formula (I), A represents a cyclic divalent group (at least one is a divalent saturated hydrocarbon ring group), L preferably represents —C(?O)O— or —OC(?O)—, m represents 3 to 12, Sp1 and Sp2 preferably are alkylene, and any one of Q1 and Q2 represents a polymerizable group. A film including a layer obtained by curing the polymerizable composition; and a film adjacently including a layer obtained by curing the polymerizable composition including a polymerizable liquid crystal compound represented by Formula (I) and a layer obtained by curing a composition including a urethane (meth)acrylate monomer and a manufacturing method thereof, are also disclosed.
    Type: Grant
    Filed: February 23, 2018
    Date of Patent: January 5, 2021
    Assignee: FUJIFILM Corporation
    Inventors: Hiroshi Inada, Shunya Katoh, Akihiro Anzai, Yuki Saiki
  • Patent number: 10858591
    Abstract: A stabilizer represented by formula I, wherein M represents cyclopentyl, cyclobutyl or cyclopropyl; Z1 and Z2 each independently represent a single bond, —CH2—, —CH2CH2—, —O—, —CH2O—, —OCH2— or —COO—; represents one or two of and n represents 0, 1 or 2.
    Type: Grant
    Filed: May 3, 2017
    Date of Patent: December 8, 2020
    Assignee: SHIJIAZHUANG CHENGZHI YONGHUA DISPLAY MATERIALS CO., LTD.
    Inventors: Gang Wen, Jingsong Meng, Hongyong Shang, Limei Zhang, Guoliang Yun, Xing Zhang
  • Patent number: 10858589
    Abstract: A polymerizable liquid crystal compound represented by Formula (I): Q1—Sp1—[A—L]—A—Sp2—Q2??(I) A represents a divalent nitrogen-containing saturated cyclic group (that may have a substituent) formed by removing two hydrogen atoms from piperidine or piperazine, a phenylene group that may have a substituent, or a trans-1,4-cyclohexylene group that may have a substituent; L represents a linking group such as —C(?O)O— or —OC(?O)—; m represents 3 to 12; Sp1 and Sp2 represent an alkylene group having 1 to 20 carbon atoms; any one of Q1 and Q2 represents a polymerizable group; and Formula (I) has a nitrogen-containing saturated cyclic group and a phenylene group that are directly bonded to each other via —C(?O)O—. By using a polymerizable composition including the polymerizable liquid crystal compound, a film such as a retardation film can have low birefringence or a reflection film can have high selectivity in a reflection wavelength range.
    Type: Grant
    Filed: February 16, 2018
    Date of Patent: December 8, 2020
    Assignee: FUJIFILM Corporation
    Inventors: Daisuke Hayashi, Hiroshi Inada, Shunya Katoh
  • Patent number: 10858590
    Abstract: A compound capable of suppressing the occurrence of alignment defects and lowering the phase transition temperature of a liquid crystal composition without impairing optical characteristics is provided. In particular, a compound represented by formula (A) is provided in which the variable groups are as defined in the specification.
    Type: Grant
    Filed: October 30, 2017
    Date of Patent: December 8, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Shinnosuke Yoshioka, Noriyuki Hida, Katsuaki Miyazaki, Daichi Fujimoto
  • Patent number: 10858587
    Abstract: Liquid-crystalline media containing one or more compounds of formulae I-1, I-2 and/or I-3 and one or more compounds of formulae II and/or III and components containing these media for high-frequency technology, in particular phase shifters and microwave array antennas.
    Type: Grant
    Filed: October 18, 2017
    Date of Patent: December 8, 2020
    Assignee: MERCK PATENT GMBH
    Inventors: Michael Wittek, Dagmar Klass
  • Patent number: 10844283
    Abstract: A polymerizable liquid crystal compound represented by formula (1). In formula (1), A1 is 1,4-phenylene, 1,4-cyclohexylene, 1,4-cyclohexenylene, pyridine-2,5-diyl, 1,3-dioxane-2,5-diyl or naphthalene-2,6-diyl, Z1 is a connecting group, m and n are independently an integer from 0 to 5, in which an expression: 1?m+n?8 holds, X1 is alkylene having 1 to 5 carbons, in which an atom thereof may be replaced by a hetero atom, and at least one of R1 is a polymerizable functional group.
    Type: Grant
    Filed: February 13, 2018
    Date of Patent: November 24, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventor: Daisuke Ootsuki
  • Patent number: 10793676
    Abstract: A polyimide polymer that includes the reaction product of: (a) at least one diamine selected from the group consisting of a diamine of Structure (I) (b) at least one tetracarboxylic acid dianhydride, and optionally (c) at least one compound containing a first functional group reactive with an amine or an anhydride and at least one second functional group selected from the group consisting of an unsubstituted alkenyl group and an unsubstituted alkynyl group. Each variable in the above formula is defined in the specification.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: October 6, 2020
    Assignee: Fujifilm Electronic Materials U.S.A., Inc.
    Inventors: Sanjay Malik, William A. Reinerth, Binod B. De, Raj Sakamuri, Ognian N. Dimov, Ahmad A. Naiini
  • Patent number: 10766992
    Abstract: A resin containing a structural unit derived from a compound represented by the formula (aa) wherein T, R1 and Z1 are defined in the specification.
    Type: Grant
    Filed: January 23, 2015
    Date of Patent: September 8, 2020
    Assignee: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Koji Ichikawa, Yusuke Fuji, Satoshi Yamaguchi
  • Patent number: 10768498
    Abstract: A liquid crystal display device includes a first substrate, a second substrate facing the first substrate, and a liquid crystal layer interposed between the first substrate and the second substrate. The liquid crystal layer includes liquid crystal molecules having a negative dielectric anisotropy, a response speed of about 4.0 ms or less, and a rotational viscosity of about 47 mPa·S to about 75 mPa·S.
    Type: Grant
    Filed: May 1, 2017
    Date of Patent: September 8, 2020
    Assignee: Samsung Display Co., Ltd.
    Inventors: Soon Joon Rho, Kyungmin Kim, Jin-Lak Kim, Hyelim Jang
  • Patent number: 10752839
    Abstract: A photoreactive liquid crystal composition containing (A) a photoreactive polymer liquid crystal which includes a photoreactive side chain in which at least one type of reaction selected from (A-1) photocrosslinking and (A-2) photoisomerization occurs, and (B) a low molecular weight liquid crystal. An optical element or display element is formed having a liquid crystal cell including the photoreactive liquid crystal composition.
    Type: Grant
    Filed: August 29, 2014
    Date of Patent: August 25, 2020
    Assignees: UNIVERSITY OF HYOGO, NAGAOKA UNIVERISTY OF TECHNOLOGY, NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Tomoyuki Sasaki, Hiroshi Ono, Nobuhiro Kawatsuki, Kohei Goto
  • Patent number: 10754198
    Abstract: A liquid crystal display device in which a good voltage holding ratio is retained for a long period of time and occurrence of image sticking and stain in a display screen is prevented by using a photo-alignment film. The liquid crystal display device includes an active matrix liquid crystal panel and a backlight. The liquid crystal panel includes a liquid crystal layer, a pair of substrates that sandwich the liquid crystal layer in between, and an alignment film disposed on a liquid crystal layer side surface of each of the substrates. The alignment films are photo-alignment films formed from a material that exhibits a photo-alignment characteristic, and contain carboxyl groups on the liquid crystal layer side. The liquid crystal layer contains a liquid crystal material and at least one kind of quinone derivative selected from the group consisting of benzoquinone derivatives and anthraquinone derivatives.
    Type: Grant
    Filed: March 11, 2016
    Date of Patent: August 25, 2020
    Assignee: SHARP KABUSHIKI KAISHA
    Inventor: Masanobu Mizusaki
  • Patent number: 10730844
    Abstract: A compound which is represented by a formula (IIa), wherein each of Y1 to Y8 independently represents a chemical single bond, —O—, —S—, —O—C(?O)—, —C(?O)—O—, —O—C(?O)—O—, —NR1—C(?O)—, —C(?O)—NR1—, —O—C(?O)—NR1—, —NR1—C(?O)—O—, —NR1—C(?O)—NR1—, —O—NR1—, or —NR1—O—, R1 represents a hydrogen atom or an alkyl group; each of G1 and G2 independently represents a divalent linear aliphatic group; each of Z1 and Z2 independently represents an alkenyl group; Ax represents a group represented by a formula (II), wherein X represents —NR2—, an oxygen atom, a sulfur atom, and R2 represents a hydrogen atom or an alkyl group; D represents an alkylene group or a cycloalkanediyl group; A1 represents a trivalent aromatic group; each of A2 and A3 independently represents a divalent alicyclic hydrocarbon group; each of A4 and A5 independently represents a divalent aromatic group; Q1 represents a hydrogen atom, or an alkyl group.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: August 4, 2020
    Assignee: ZEON CORPORATION
    Inventors: Kei Sakamoto, Kumi Okuyama
  • Patent number: 10711196
    Abstract: Bimesogenic compounds of formula I and their use in liquid crystal media and in flexoelectric liquid crystal devices.
    Type: Grant
    Filed: November 20, 2013
    Date of Patent: July 14, 2020
    Assignee: Merck Patent GmbH
    Inventors: Kevin Adlem, Owain Llyr Parri, Rachel Tuffin, Mariam Namutebi
  • Patent number: 10698269
    Abstract: A liquid crystal display device includes: a first base substrate; a first electric field generating electrode disposed on the first base substrate; a liquid crystal layer disposed on the first electric field generating electrode and including liquid crystals; and a first wavelength absorbing layer disposed between the first electric field generating electrode and the liquid crystal layer, and configured to absorb a portion of an incident light wavelength.
    Type: Grant
    Filed: January 9, 2018
    Date of Patent: June 30, 2020
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventor: Duck Jong Suh
  • Patent number: 10670965
    Abstract: New polymers are provided comprising (i) one or more covalently linked photoacid generator moieties and (ii) one or more photoacid-labile groups, wherein the one or more photoacid generator moieties are a component of one or more of the photoacid-labile groups. Preferred polymers of the invention are suitable for use in photoresists imaged at short wavelengths such as sub-200 nm, particularly 193 nm.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: June 2, 2020
    Assignee: Rohm and Haas Electronic Materials LLC
    Inventors: Emad Aqad, Cong Liu, Cheng-Bai Xu, Mingqi Li
  • Patent number: 10640708
    Abstract: A liquid crystal composition, comprising, at least one compound represented by Formula 1-A: wherein, in the Formula 1-A, R—*, R1—*, Q-*, *—Z1-*, *—Z2-*, n1, n2, n3, n4, L1-*, L2-*, L3-*, L4-*, L5-*, L6-*, L7-*, and L8-* are the same as defined in the specification, and * is defined as a bonding site to a neighboring atom.
    Type: Grant
    Filed: January 6, 2017
    Date of Patent: May 5, 2020
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Ji Hong Bae, Keun Chan Oh, Seul Gee Lee
  • Patent number: 10619098
    Abstract: Compounds that have ultraviolet light absorbing properties, and which can also have mesogenic properties. Compositions that include one or more such compounds. Articles of manufacture that include one or more such compounds, such as optical elements that include an optical substrate and a layer that includes at least one such compound.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: April 14, 2020
    Assignee: Transitions Optical, Inc.
    Inventors: Ramaiahgari Reddy, Cory S. Brown, Alan Grubb, Meng He, Anil Kumar, Ruisong Xu
  • Patent number: 10584284
    Abstract: A compound represented by formula (1), a liquid crystal composition to which the compound is added, and a liquid crystal display device containing the composition. In formula (1), R1 is hydrogen or alkyl having 1 to 20 carbons, or the like; R2 and R3 are independently methyl, ethyl, isopropyl, or t-butyl; ring A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z is a single bond or alkylene having 1 to 6 carbons, or the like; and m is 0, 1, or 2.
    Type: Grant
    Filed: November 6, 2015
    Date of Patent: March 10, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yasuyuki Gotoh, Teizi Satou
  • Patent number: 10557082
    Abstract: A liquid crystal composition and use thereof in the liquid crystal display field. The liquid crystal composition includes, in percentages by weight, 5-40% of one or more compounds represented by general formula I, 2-30% of one or more compounds represented by general formula II, and 20-70% of one or more compounds represented by general formula III, and may further include 4-30% of one or more compounds represented by general formula IV and/or 5-25% of one or more compounds represented by general formulas V to IX. The combined use of the above-mentioned compounds can effectively reduce the rotational viscosity of the liquid crystal composition, improve related properties of the mixed liquid crystal, and thus reduce the response time thereof. The liquid crystal composition can be used for a fast-response liquid display in a variety of display modes.
    Type: Grant
    Filed: November 27, 2015
    Date of Patent: February 11, 2020
    Assignee: BEIJING BAYI SPACE LCD TECHNOLOGY CO., LTD
    Inventors: Maoxian Chen, Haiguang Chen, Shihong Chu, Tianmeng Jiang, Xin Wei, Lin Zhang, Huiqiang Tian, Qinghua Li, Jin Yuan, Yunpeng Guo, Xuehui Su
  • Patent number: 10550327
    Abstract: Polymerisable compounds and processes and intermediates for the preparation thereof. Also liquid-crystal (LC) media comprising the polymerisable compounds, and 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 PSA (“polymer sustained alignment”) type.
    Type: Grant
    Filed: April 12, 2013
    Date of Patent: February 4, 2020
    Assignee: Merck Patent GmbH
    Inventors: Martin Engel, Andreas Taugerbeck, Constanze Brocke, Helmut Haensel, Stephan Derow, Julian Vogt