Patents Assigned to JNC Petrochemical Corporation
  • Publication number: 20210214615
    Abstract: The liquid crystal display device of the disclosure has: a first substrate; a plurality of pixel electrodes formed on the first substrate; a second substrate; a counter electrode formed on the second substrate and facing the pixel electrode; a liquid crystal layer including a liquid crystal composition between the pixel electrode and the counter electrode; and an alignment control layer formed of a polymer containing an alignable monomer that is one component of the liquid crystal composition, in which the alignment control layers are each formed on a side of the first substrate and on a side of the second substrate. The alignable monomer is a polymerizable polar compound having a mesogen moiety formed of at least one ring, and a polar group.
    Type: Application
    Filed: August 3, 2017
    Publication date: July 15, 2021
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yuko KATANO, Fumitaka KONDO, Kazuhiro OGITA, Hiroshi ENDOU
  • Patent number: 11031591
    Abstract: Polysilsesquioxane covering silicon nanoparticles, or a calcined product thereof, comprising silicon nanoparticles, which have a volume-basis mean particle size of 10-500 nm, exclusive, and do not include particles having a particle size of 1000 nm or larger, and polysilsesquioxane, which covers the silicon nanoparticles and is chemically bonded to the surfaces of the silicon nanoparticles, said polysilsesquioxane covering silicon nanoparticles or the calcined product thereof having Si—H bonds. When observed using a transmission electron microscope (TEM), the thickness of the polysilsesquioxane is 1-30 nm, inclusive.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: June 8, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yoshihito Takano, Tetsuro Kizaki, Hirotsuna Yamada, Masakazu Kondo, Akira Takahashi
  • Patent number: 11027978
    Abstract: A silicon nanoparticle-containing hydrogen polysilsesquioxane calcined product to be covered by the invention, represented by general formula SiOx2Hy2 (0.3<x2<1.5, 0.01<y2<0.35), containing 5% by weight to 65% by weight of silicon nanoparticles having a volume-basis mean particle size of more than 10 nanometers and less than 500 nanometers, having a chemical bond between a surface of the silicon nanoparticles and a silicon oxide structure derived from hydrogen polysilsesquioxane, having a Si—H bond, and substantially containing no carbon is silicon oxide applicable to a negative electrode active material for a secondary battery having excellent discharging capacity, initial charging and discharging efficiency and cycle characteristics.
    Type: Grant
    Filed: January 11, 2017
    Date of Patent: June 8, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yoshihito Takano, Tetsuro Kizaki, Hirotsuna Yamada, Masakazu Kondo, Akira Takahashi
  • Patent number: 10982146
    Abstract: A liquid crystal composition including liquid crystalline compounds, polymerizable compounds, and dichroic dyes in which the polymerizable compound includes at least one compound represented by Formula (1), R11-MES-Sp11-P11??(1) in Formula (1), R11 is an alkyl group having 1 to 15 carbon atoms; MES is a mesogenic group having at least one ring, and in the ring in MES, at least one hydrogen atom is optionally substituted with -Sp11-P11; Sp11 is a single bond or an alkylene group having 1 to 10 carbon atoms, and in this alkylene group, at least one —CH2— is optionally substituted with —O—, —CO—, —COO—, —OCO—, or —OCOO—, and at least one —(CH2)2— is optionally substituted with —CH?CH— or —C?C—, and in these groups, at least one hydrogen atom is optionally substituted with a polymerizable group; P11 is a polymerizable group or a polar group, or a group having both polymerization and polarity.
    Type: Grant
    Filed: December 10, 2018
    Date of Patent: April 20, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Kazuhiro Ogita, Fumitaka Kondo, Yoshiharu Hirai
  • Patent number: 10975305
    Abstract: To provide a compound having an effect of preventing photodegradation of a liquid crystal composition and high solubility in a liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display element containing the composition. There are provided a compound represented by M(Z-Q)m, a liquid crystal composition containing the compound, and a liquid crystal display element using the composition. Here, m is 3, 4, or 5; M is a trivalent, tetravalent, or pentavalent cyclic group, an organic group, or a group constituted by trivalent nitrogen; Z is a single bond, —O—, —COO—, or —OCO—; and Q is a monovalent group represented by Formula (Q-1): in Formula (Q-1), Ra is a hydrogen atom, —O., —OH, an alkyl group, or an alkenyl group, a terminal group (—CH3) is optionally substituted with —NHR2 or —NR3R4, and here R3 and R4 are an alkyl group.
    Type: Grant
    Filed: December 25, 2018
    Date of Patent: April 13, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Kazuo Okumura, Michiko Sawada
  • Patent number: 10968392
    Abstract: Provided are a liquid crystal alignment film capable of being given anisotropy through photoalignment and stable to light, and a liquid crystal display device capable of keeping a high voltage holding ratio without degradation of display quality even when exposed to strong light for a long period of time. To provide these, used is a liquid crystal aligning agent for photoalignment which contains a polymer having a structural unit containing a photoreactive structure and in which the structural unit containing a photoreactive structure undergoes chemical reaction by heating.
    Type: Grant
    Filed: October 30, 2018
    Date of Patent: April 6, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yohei Koseki, Takehiko Kanbara
  • Patent number: 10961455
    Abstract: A polymerizable liquid crystal composition for obtaining a retardation film that has high front contrast; and a liquid crystal polymer. A polymerizable liquid crystal composition which is characterized by containing a compound represented by formula (1). Exemplified are embodiments wherein in formula (1), W1 represents an alkyl group having 1-5 carbon atoms, an alkoxy group having 1-5 carbon atoms, an alkoxycarbonyl group having 1-5 carbon atoms or an alkanoyl group having 1-5 carbon atoms; Z1 represents —CH2CH2COO—; Z2 represents —OCOCH2CH2—; each of Y1 and Y2 represents a linking group; each of Q1 and Q2 represents a spacer; and each of P1 and P2 represents a polymerizable functional group.
    Type: Grant
    Filed: July 31, 2017
    Date of Patent: March 30, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Daisuke Ootsuki, Nagahisa Miyagawa
  • Publication number: 20210071079
    Abstract: The purpose of the invention is to control, by using a colorless alignment control monomer, the alignment of liquid crystal molecules of a liquid crystal display element that does not include an alignment film, and to provide a liquid crystal composition with which the colorless alignment control monomer exhibits excellent compatibility. The invention uses a liquid crystal display element that comprises an alignment control monomer including an aromatic ester that undergoes photo-Fries rearrangement by light irradiation, and that employs a liquid crystal composition having a negative dielectric anisotropy. The invention also uses the liquid crystal composition.
    Type: Application
    Filed: February 16, 2018
    Publication date: March 11, 2021
    Applicants: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Yoshiharu HIRAI, Kazuhiro OGITA, Fumitaka KONDO, Tomohiro YANO, Hiroshi ENDOU
  • Publication number: 20210071080
    Abstract: Provided is a compound represented by formula (1) described below. In formula (1), a and b are independently 0, 1 or 2, and expressions: 0?a+b?3 hold, ring A1, ring A2, ring A3 and ring A4 are independently 1,4-cyclohexylene, for example, Z1, Z2, Z3, Z4 and Z3 are independently a single bond, alkylene having 1 to 10 carbons, or the like, Sp1 and Sp2 are independently a single bond, alkylene having 1 to 10 carbons, or the like, and P1 and P2 are independently a specific polymerizable group.
    Type: Application
    Filed: December 13, 2018
    Publication date: March 11, 2021
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Tomohiro YANO, Fumitaka KONDO
  • Patent number: 10865344
    Abstract: A liquid crystal composition without requiring an alignment film or alignment treatment on a substrate. The problem is solved by a low molecular weight polar compound capable of homogeneously aligning a liquid crystal medium relative to the substrate, for example, a low molecular weight polar compound represented by formula (1): M-P??(1) In formula (1), M is a nonpolar group having 1 or more carbons, and P is a polar group.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: December 15, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Tomohiro Yano, Fumitaka Kondou, Shin-ichi Yamamoto
  • Patent number: 10847784
    Abstract: A negative electrode active material for the lithium ion secondary battery contains silicon oxide that is obtained by heat-treating, under an inert gas atmosphere, a hydrogen silsesquioxane polymer (HPSQ) obtained by allowing hydrolysis of a silicon compound represented by formula (1) and then a condensation reaction of the resulting material, contains Si, O and H, and has, in an infrared spectrum, a ratio (I1/I2) in the range of 0.01 to 0.35 with regard to intensity (I1) of peak 1 at 820 to 920 cm?1 due to a Si—H bond to intensity (I2) of peak 2 at 1000 to 1200 cm?1 due to a Si—O—Si bond, and is represented by general formula SiOxHy (1<x<1.8, 0.01<y<0.4): HSi(R)3 (1), in which R is groups selected from hydrogen, alkoxy having 1 to 10 carbons and the like.
    Type: Grant
    Filed: July 6, 2016
    Date of Patent: November 24, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Keizo Iwatani, Tetsuro Kizaki, Yoshihito Takano, Masakazu Kondo
  • 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
  • Publication number: 20200332193
    Abstract: There is provided an element which has large dielectric anisotropy and low dielectric loss in a high frequency range, has high reliability, and is used for phase control of an electromagnetic wave signal with a frequency of 1 MHz to 400 THz. An element in which a liquid crystal composition contains a compound represented by the following Formula (1) and has a refractive index anisotropy of 0.
    Type: Application
    Filed: April 15, 2020
    Publication date: October 22, 2020
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Norio TAMURA, Yoichi Uriu
  • Patent number: 10787608
    Abstract: A liquid crystal display device having a liquid crystal composition, requiring neither an alignment film nor alignment treatment on a substrate. The problem is solved by a low molecular weight polar compound for homogeneously aligning a liquid crystal medium relative to the substrate, for example, the low molecular weight polar compound represented by formula (1). Formula 95 M-P??(1) In formula (1), M is a nonpolar group having 1 or more carbons, and P is a polar group.
    Type: Grant
    Filed: February 24, 2017
    Date of Patent: September 29, 2020
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Tomohiro Yano, Fumitaka Kondou, Shin-ichi Yamamoto
  • Publication number: 20200299578
    Abstract: The problem is to provide a polymerizable compound having suitable polymerization reactivity, a high conversion ratio, low polymerization starting temperature, and high solubility in a liquid crystal composition; a liquid crystal composition containing the compound; and a liquid crystal display device including the composition. A means thereof includes a compound represented by formula (1) and a liquid crystal composition containing the compound. In formula (1), R1, R2 and R3 are independently alkyl or the like; n is 0 or the like; ring A1 is phenyl or the like, and ring A2 and ring A3 are independently 1,4-phenylene or the like; Z1 and Z2 are independently a single bond or the like; Sp1 to Sp4 are a single bond or the like; a is 1 or the like; c, d and e are independently 0 or 1, and a sum of c, d and e is 1 or the like; and P1 to P4 are a polymerizable group, and at least one of P1 to P4 is a polymerizable group represented by formula (P-1).
    Type: Application
    Filed: December 5, 2018
    Publication date: September 24, 2020
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Ayako MORI, Hiroyuki TANAKA
  • Publication number: 20200299581
    Abstract: A device using a liquid crystal medium exhibiting an optically isotropic liquid crystal phase, particularly, a blue phase liquid crystal medium for polarized light control application, in which reduction of an effective dielectric constant in a high frequency region is suppressed. A liquid crystal composition contains achiral component T, and has a liquid crystal phase optically exhibiting isotropy, in which achiral component T contains at least one compound selected from the group of compounds represented by formula (1) as a first component, at least one compound selected from the group of compounds represented by formula (2) and formula (3) as a second component, and is used for optical switching for controlling retardation by electric field-induced birefringence.
    Type: Application
    Filed: March 19, 2020
    Publication date: September 24, 2020
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Eiji OKABE, HITOSHI TOBATA
  • Patent number: 10782566
    Abstract: The subject is to provide liquid crystal display device having a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. The liquid crystal display device having a liquid crystal alignment film formed on the opposing surfaces of a pair of substrates, and a liquid crystal composition therebetween, wherein the liquid crystal alignment film includes a polymer derived from a polyamic acid having a photodegradable group, and the liquid crystal composition includes at least one compound represented by formula (1) as a first component: R1 is alkyl having 1 to 12 carbons or the like; ring A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z1 is a single bond or the like; X1 and X2 are hydrogen or fluorine; Y1 is fluorine or the like; and a is 1, 2, 3 or 4.
    Type: Grant
    Filed: June 30, 2015
    Date of Patent: September 22, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yoshimasa Furusato, Masayuki Saito
  • Patent number: 10774264
    Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or has a suitable balance regarding at least two of the characteristics; and an AM device having characteristics such as a short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio and a long service life. The liquid crystal composition may contain a specific compound having large negative dielectric anisotropy as a first component, a specific compound having high maximum temperature as a second component, a specific compound having negative dielectric anisotropy as a third component, or a specific compound having a polymerizable group as an additive component.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: September 15, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Eriko Kurihara, Masayuki Saito
  • Patent number: 10777809
    Abstract: A method for producing a negative electrode active material for lithium ion secondary batteries containing a silicon-titanium oxide composite, which is characterized in that: the silicon-titanium oxide composite contained in the negative electrode active material for lithium ion secondary batteries is obtained by coating a silicon oxide by a titanium oxide; the silicon oxide is obtained by subjecting a polymerized silsesquioxane (PSQ), which has a structure of formula (1) and is obtained by subjecting a silicon compound to hydrolysis and a condensation polymerization reaction, to a heat treatment in an inert gas atmosphere, and is represented by general formula SiOxCyHz (wherein 0.5<x<1.8, 0?y<5 and 0?z<0.4); and after coating the silicon oxide with a titanium oxide, the resulting product is subjected to a heat treatment in a reducing gas atmosphere.
    Type: Grant
    Filed: April 6, 2017
    Date of Patent: September 15, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yoshihito Takano, Tetsuro Kizaki, Masakazu Kondo
  • Patent number: RE48467
    Abstract: The liquid crystal composition having a negative dielectric anisotropy contains two ring compound having a large optical anisotropy and a negatively large dielectric anisotropy as the first component, three ring compound having a large maximum temperature and a large dielectric anisotropy as the second component, three ring compound having a large optical anisotropy and a large dielectric anisotropy as the third component, and two ring compound having a small viscosity as the fourth component. The liquid crystal display device contains the compositions.
    Type: Grant
    Filed: February 8, 2016
    Date of Patent: March 16, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Norikatsu Hattori, Kazuhiko Saigusa