Patents by Inventor Fusayuki Takeshita

Fusayuki Takeshita 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: 10214690
    Abstract: A liquid crystal composition including a liquid crystal compound represented by Formula 1:
    Type: Grant
    Filed: April 18, 2017
    Date of Patent: February 26, 2019
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sung-Hwan Hong, Eun Kyung Koh, Myung-Eun Kim, Fusayuki Takeshita, Ji Hong Bae
  • Patent number: 10106739
    Abstract: A liquid crystal composition includes one or more compounds represented by Chemical Formula 1. In Chemical Formula 1, are a cyclohexane or tetrahydropyran, and R1 and R2 are each independently hydrogen, a C1 to C8 alkyl group, a C2 to C8 alkenyl group, or a C1 to C8 alkoxy group.
    Type: Grant
    Filed: April 5, 2016
    Date of Patent: October 23, 2018
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sun Young Kwon, Fusayuki Takeshita, Keun Chan Oh
  • Patent number: 9885915
    Abstract: A liquid crystal display includes a first substrate including a thin-film transistor (“TFT”) disposed in a unit pixel, a first electrode connected to the TFT, and a second electrode disposed on the same layer as that on which the first electrode is disposed, a second substrate facing the first substrate, and a liquid crystal layer between the first and second substrates, where the first and second electrodes include a first wiring electrode and a second wiring electrode, respectively disposed on sides of the unit pixel, first main electrodes and second main electrodes, respectively branched off from at least one of the first wiring electrode and the second wiring electrode in a first direction and are arranged in a staggered manner, and first slit electrodes and second slit electrodes, respectively, which are arranged in a second direction perpendicular to the first direction and are arranged in a staggered manner.
    Type: Grant
    Filed: November 3, 2016
    Date of Patent: February 6, 2018
    Assignee: SAMSUNG DISPLAY CO. LTD.
    Inventors: Fusayuki Takeshita, Jae Jin Lyu, Keun Chan Oh, Jin Hyeong Lee
  • Publication number: 20170298274
    Abstract: A liquid crystal composition including a liquid crystal compound represented by Formula 1:
    Type: Application
    Filed: April 18, 2017
    Publication date: October 19, 2017
    Inventors: Sung-Hwan HONG, Eun Kyung KOH, Myung-Eun KIM, Fusayuki TAKESHITA, Ji Hong BAE
  • Publication number: 20170146861
    Abstract: A liquid crystal display includes a first substrate including a thin-film transistor (“TFT”) disposed in a unit pixel, a first electrode connected to the TFT, and a second electrode disposed on the same layer as that on which the first electrode is disposed, a second substrate facing the first substrate, and a liquid crystal layer between the first and second substrates, where the first and second electrodes include a first wiring electrode and a second wiring electrode, respectively disposed on sides of the unit pixel, first main electrodes and second main electrodes, respectively branched off from at least one of the first wiring electrode and the second wiring electrode in a first direction and are arranged in a staggered manner, and first slit electrodes and second slit electrodes, respectively, which are arranged in a second direction perpendicular to the first direction and are arranged in a staggered manner.
    Type: Application
    Filed: November 3, 2016
    Publication date: May 25, 2017
    Inventors: Fusayuki TAKESHITA, Jae Jin LYU, Keun Chan OH, Jin Hyeong LEE
  • Patent number: 9580652
    Abstract: A liquid crystal compound represented by Formula 1:
    Type: Grant
    Filed: March 2, 2015
    Date of Patent: February 28, 2017
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Fusayuki Takeshita, Jaejin Lyu
  • Publication number: 20160348002
    Abstract: A liquid crystal composition includes one or more compounds represented by Chemical Formula 1. In Chemical Formula 1, are a cyclohexane or tetrahydropyran, and R1 and R2 are each independently hydrogen, a C1 to C8 alkyl group, a C2 to C8 alkenyl group, or a C1 to C8 alkoxy group.
    Type: Application
    Filed: April 5, 2016
    Publication date: December 1, 2016
    Inventors: Sun Young KWON, Fusayuki TAKESHITA, Keun Chan OH
  • Publication number: 20160326434
    Abstract: A liquid crystal composition includes at least one liquid crystal molecule having a positive dielectric anisotropy represented by Chemical Formula 1: In Chemical Formula 1, each of A and B is independently 1, 4-cyclohexylene or 1, 4-phenylene, C is cyclopentyl or cyclopentadienyl, each of Z1 and Z2 is independently a single bond, alkylene group, carbonyloxy, —CF2O—, —OCF2—, —CH2O—, or —OCH2—, each of L1 to L8 is independently —H, —F, —CF3, or may be difluoride (diF) when A or B is 1, 4-cyclohexylene, each of L9 to L12 is independently —H, —F, —CF3, or difluoride, each of m and n is 0 to 2, and R1 is an alkyl group or an alkoxy group, and the number of carbons of R1 is about 1 to about 10.
    Type: Application
    Filed: April 25, 2016
    Publication date: November 10, 2016
    Inventors: Byung Wook AHN, Fusayuki TAKESHITA, Keun Chan OH
  • Publication number: 20160185763
    Abstract: A liquid crystal stabilizer according to an exemplary embodiment of the present invention includes at least one of the compounds represented by the following Chemical Formulae 1 and 2. X1 is any one of H, O, OR, and R, X2 is any one of O, OCO, OR, RO, NOR, and R, X3 is any one of O, OCO, OR, RO, NOR, and R, A and B each independently include one or more of a cyclohexyl group, a cyclic ether group, and a phenyl group, R is an alkyl group having 1 to 5 carbon atoms, and m and n are each independently a natural number from 0 to 2.
    Type: Application
    Filed: June 19, 2015
    Publication date: June 30, 2016
    Inventors: Si Heun KIM, Fusayuki TAKESHITA, Ji Hong BAE, Beom-Soo SHIN, Keun Chan OH, Hye Lim JANG
  • Publication number: 20160083654
    Abstract: A liquid crystal composition comprises at least one of first liquid crystal compounds represented by Formula 1, and a liquid crystal display including the liquid crystal composition: Wherein R11 and R12, and n11 and n12 are defined as in the specification.
    Type: Application
    Filed: February 25, 2015
    Publication date: March 24, 2016
    Inventors: Fusayuki Takeshita, Jaejin Lyu, Siheun Kim
  • Publication number: 20160083653
    Abstract: A liquid crystal compound represented by Formula 1:
    Type: Application
    Filed: March 2, 2015
    Publication date: March 24, 2016
    Inventors: Fusayuki Takeshita, Jaejin Lyu
  • Patent number: 8771809
    Abstract: A photoalignment material includes a photoalignment polymer having a photosensitive portion represented by the following Chemical Formula 1, R1 represents a cyclic compound, each of R2 and R3 represents a single bond, —(CnH2n)—, —(CxH2x)O(CyH2y)—, or —(CaH2a)O(CbH2b)O(CdH2d)—, “n” represents an integer in the range of 1 to 6, each of “x”, “y”, “a”, “b”, and “d” represents 0 or an integer in the range of 1 to 6, x+y is an integer in the range of 1 to 5, and a+b+d is an integer in the range of 1 to 6. Each hydrogen atom is replaceable with —CH3, —CH2—CH3, —OCH3, —OCH2CH3, —OCH2OCH3, F, or Cl, and each hydrogen atom of —CH3, —CH2—CH3, —OCH3, —OCH2CH3, or —OCH2OCH3 is replaceable with F or Cl.
    Type: Grant
    Filed: February 24, 2009
    Date of Patent: July 8, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Fusayuki Takeshita, Jun-Woo Lee
  • Patent number: 8597727
    Abstract: A photoalignment material includes an alignment polymer, a photoalignment additive including a compound represented by the following Chemical Formula 1 and an organic solvent. In Chemical Formula 1, R1 represents a cyclic compound. A and B independently represent a single bond or —(CnH2n)—. “n” represents an integer in a range of 1 to 12. Each —CH2— of A and/or B may be replaced with R3 represents an alkyl group having 1 to 12 carbon atoms, and each —CH2— of A and/or B may be replaced with —O—. R4 represents In Chemical Formula 1, each hydrogen atom excluding hydrogen atoms of R4 may be replaced with chlorine (Cl) or fluorine (F).
    Type: Grant
    Filed: October 9, 2012
    Date of Patent: December 3, 2013
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Woo Lee, Fusayuki Takeshita, Baek-Kyun Jeon, Tae-Sung Jung, Hoi-Lim Kim, Jeong-Hye Choi, Sung-Yi Kim
  • Patent number: 8304038
    Abstract: A photoalignment material includes an alignment polymer, a photoalignment additive including a compound represented by the following Chemical Formula 1 and an organic solvent. In Chemical Formula 1, R1 represents a cyclic compound. A and B independently represent a single bond or —(CnH2n)—. “n” represents an integer in a range of 1 to 12. Each —CH2— of A and/or B may be replaced with R3 represents an alkyl group having 1 to 12 carbon atoms, and each —CH2— of A and/or B may be replaced with —O—. R4 represents In Chemical Formula 1, each hydrogen atom excluding hydrogen atoms of R4 may be replaced with chlorine (Cl) or fluorine (F).
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: November 6, 2012
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jun-Woo Lee, Fusayuki Takeshita, Baek-Kyun Jeon, Tae-Sung Jung, Hoi-Lim Kim, Jeong-Hye Choi, Sung-Yi Kim
  • Patent number: 8004646
    Abstract: A reflective liquid crystal display that comprises: a first substrate; a common electrode formed on the first substrate; a second substrate corresponding to the first substrate; a pixel electrode formed on the second substrate; partitions formed between the common electrode and the pixel electrode; red, green, and blue cholesteric liquid crystals formed in regions separated by the partitions; and sealing lines formed on the outer peripheries of the partitions and having three liquid crystal injection holes.
    Type: Grant
    Filed: April 10, 2009
    Date of Patent: August 23, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Nak-Cho Choi, Fusayuki Takeshita
  • Patent number: 7867582
    Abstract: A liquid crystal composition and a liquid crystal display including the liquid crystal composition that includes a first class containing a fluorine-containing liquid crystal compound represented by Formula I (n=1, 2, or 3), and a second class containing at least one neutral liquid crystal compound represented by Formulae III, IV, and V. In Formula I, W1 and W2 are each independently selected from the group consisting of —F, —CF3, —CF2H, —OCF3, and —OCF2H, the liquid crystal compounds represented by Formulae I, III, IV, and V have R1, R2, and R5 to R10 that are any one of a hydrogen atom, and an alkyl group, an alkoxy group, and an alkenyl group having 1 to 12 carbon atoms as terminal groups, and a first sub-class has a content of 6 wt % or less based on a total content of the first class and the second class, with the proviso that a liquid crystal compound of the first class having n=1 is the first sub-class and a liquid crystal compound of the first class having n=2 or 3 is a second sub-class.
    Type: Grant
    Filed: October 8, 2009
    Date of Patent: January 11, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Ho Son, Fusayuki Takeshita, Jae-Jin Lyu, Keun-Chan Oh, Yong-Kuk Yun, Hyun Wuk Kim, Jang-Hyun Kim, Min-Goo Seok, Sik-Young Jo
  • Patent number: 7803435
    Abstract: A liquid crystal composition includes about 1 to about 40% by weight of an alkoxyl naphthalene-base compound, about 5 to about 30% by weight of a dialkoxyl naphthalene-base compound, and about 5 to about 80% by weight of a low viscosity compound.
    Type: Grant
    Filed: April 22, 2008
    Date of Patent: September 28, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Fusayuki Takeshita, Jong-Ho Son
  • Patent number: 7767276
    Abstract: The present invention discloses a liquid crystal composition having a first class compound including a fluorine-containing compound, and a second class compound including a neutral liquid crystal compound, where each terminal group of the neutral crystal compound includes an alkyl group, an alkoxy group, or an alkenyl group. If the neutral liquid crystal compound includes an alkenyl group at the terminal group, the liquid crystal composition includes less than 7 wt % of the neutral crystal compound including the alkenyl group. The present invention also discloses a liquid crystal display including the aforementioned liquid crystal composition.
    Type: Grant
    Filed: November 6, 2006
    Date of Patent: August 3, 2010
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Ho Son, Fusayuki Takeshita, Jae-Jin Lyu, Yong-Kuk Yun, Hyun-Wuk Kim, Jang-Hyun Kim, Min-Goo Seok
  • Publication number: 20100097547
    Abstract: A reflective liquid crystal display that comprises: a first substrate; a common electrode formed on the first substrate; a second substrate corresponding to the first substrate; a pixel electrode formed on the second substrate; partitions formed between the common electrode and the pixel electrode; red, green, and blue cholesteric liquid crystals formed in regions separated by the partitions; and sealing lines formed on the outer peripheries of the partitions and having three liquid crystal injection holes.
    Type: Application
    Filed: April 10, 2009
    Publication date: April 22, 2010
    Inventors: Nak-Cho CHOI, Fusayuki TAKESHITA
  • Publication number: 20100025631
    Abstract: A liquid crystal composition and a liquid crystal display including the liquid crystal composition that includes a first class containing a fluorine-containing liquid crystal compound represented by Formula I (n=1, 2, or 3), and a second class containing at least one neutral liquid crystal compound represented by Formulae III, IV, and V. In Formula I, W1 and W2 are each independently selected from the group consisting of —F, —CF3, —CF2H, —OCF3, and —OCF2H, the liquid crystal compounds represented by Formulae I, III, IV, and V have R1, R2, and R5 to R10 that are any one of a hydrogen atom, and an alkyl group, an alkoxy group, and an alkenyl group having 1 to 12 carbon atoms as terminal groups, and a first sub-class has a content of 6 wt % or less based on a total content of the first class and the second class, with the proviso that a liquid crystal compound of the first class having n=1 is the first sub-class and a liquid crystal compound of the first class having n=2 or 3 is a second sub-class.
    Type: Application
    Filed: October 8, 2009
    Publication date: February 4, 2010
    Inventors: Jong-Ho SON, Fusayuki Takeshita, Jae-Jin Lyu, Keun-Chan Oh, Yong-Kuk Yun, Hyun Wuk Kim, Jang-Hyun Kim, Min-Goo Seok, Sik-Young Jo