Patents Assigned to Chisso Corporation
  • Patent number: 7851032
    Abstract: A liquid crystal composition is provided that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or is properly balanced regarding at least two characteristics. An AM device is provided that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition contains a specific compound having especially negatively large dielectric anisotropy as the first component, a specific bicyclic compound having a small viscosity as the second component, a specific compound having a high maximum temperature as the third component, a specific compound having a negatively large dielectric anisotropy, a low minimum temperature as the fourth component.
    Type: Grant
    Filed: May 7, 2009
    Date of Patent: December 14, 2010
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Masayuki Saito, Teru Shimada
  • Publication number: 20100309402
    Abstract: The invention provides a liquid crystal compound having stability to heat, light and so forth, a wide temperature range of a nematic phase, a small viscosity, a suitable optical anisotropy, and a suitable elastic constant K33, and further having a suitable and negative dielectric anisotropy and an excellent compatibility with other liquid crystal compounds, and a liquid crystal composition having stability to heat, light and so forth, a low viscosity, a large optical anisotropy, a suitable and negative dielectric anisotropy, and a suitable elastic constant K33, a low threshold voltage, a high maximum temperature (phase-transition temperature on a nematic phase-isotropic phase) of a nematic phase, and a low minimum temperature of the nematic phase. The liquid crystal compound which has a specific structure having fluorine at a lateral position and also having phenylene in which hydrogen on the benzene ring is replaced by fluorine, and a liquid crystal composition containing the compound are prepared.
    Type: Application
    Filed: August 26, 2008
    Publication date: December 9, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Masahide Kobayashi, Teru Shimada
  • Publication number: 20100308266
    Abstract: Subject The subject is to provide a liquid crystal composition that satisfies at least one of characteristics such as a high maximum temperature of the nematic phase, a low minimum temperature of the nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, a high stability to heat and a short helical pitch, or that is suitably balanced regarding at least two of the characteristics. The subject is also to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life, a little light-leak and so forth.
    Type: Application
    Filed: May 17, 2010
    Publication date: December 9, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takayoshi YANAI, Takashi HIRAOKA, Masayuki SAITO
  • Patent number: 7847047
    Abstract: A material which expresses its critical solution temperature even in an aqueous solution containing a buffer or salt, and at the same time, shows small variation width of the critical solution temperature even when concentration of salt or the like contained in water, a buffer liquid or the like is different, interacts with a substance such as a component in the living body and can therefore be used efficiently in the isolation of substances, is provided. A monomer represented by a formula (1) and a thermoresponsive polymer which contains said monomer as a polymerization component.
    Type: Grant
    Filed: February 27, 2007
    Date of Patent: December 7, 2010
    Assignee: Chisso Corporation
    Inventors: Hirokazu Nagaoka, Noriyuki Ohnishi, Masaru Eguchi
  • Patent number: 7846513
    Abstract: A compound represented by the following formula (1), a liquid crystal composition containing the compound and a liquid crystal display device containing the composition: all the symbols in the formula (1) are defined in the specification.
    Type: Grant
    Filed: November 9, 2005
    Date of Patent: December 7, 2010
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Yasuyuki Sasada
  • Patent number: 7846514
    Abstract: The invention provides a liquid crystal compound which has stability to heat, light and so forth, shows liquid crystal phases in a wide temperature range, and has a small viscosity, an appropriate optical anisotropy, a large dielectric anisotropy, and an excellent compatibility with other liquid crystal compounds. The invention provides a liquid crystal composition which has an appropriate optical anisotropy, an appropriate dielectric anisotropy, a low threshold voltage, and a high maximum temperature and a low minimum temperature of a nematic phase. The invention provides a liquid crystal display device which has a short response time, a small power consumption, a small driving voltage, and a large contrast, and can be used in a wide temperature range. The liquid crystal compound is a halogeno-benzene derivative having a trifluoropropenyl group or trifluoropropynyl group at a side chain, such as, for example, trans-4?-[3,5-difluoro-4-(3,3,3-trifluoropropenyl)phenyl]-trans-4-propylbicyclohexyl.
    Type: Grant
    Filed: January 15, 2008
    Date of Patent: December 7, 2010
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventor: Teru Shimada
  • Publication number: 20100302498
    Abstract: Subject The invention is to provide a liquid crystal composition that satisfies at least one characteristic among characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least two of the characteristics. The invention is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. Means for Solving the Subject A liquid crystal composition having a nematic phase and containing a specific compound having a large optical anisotropy and a large dielectric anisotropy as a first component, and a specific compound having a small viscosity as a second component, and a liquid crystal display device contains this composition.
    Type: Application
    Filed: April 14, 2010
    Publication date: December 2, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPROATION
    Inventor: Masayuki SAITO
  • Patent number: 7842357
    Abstract: A compound represented by the following formula (1): wherein R1 and R2 are, for example alkyl; T1, T2 and T3 are independently tetrahydropyran-2,5-diyl or tetrahydropyran-3,6-diyl; A1 and A2 are, for example 1,4-cyclohexylene; Z1, Z2, Z3 and Z4 are, for example, a single bond; i, j, k, m and n are, for example 0 or 1; and i+j+k+m+n is, for example 2 or 3.
    Type: Grant
    Filed: October 4, 2005
    Date of Patent: November 30, 2010
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Tokifumi Masukawa, Atsuko Fujita
  • Publication number: 20100296029
    Abstract: A liquid crystal compound and a liquid crystal medium are described. The liquid crystal compound is stable to heat and light and has a large dielectric anisotropy and a large optical anisotropy. The liquid crystal medium has a wide temperature range of liquid crystal phase, a large optical anisotropy and a large dielectric anisotropy, and exhibits an optically isotropic liquid crystal phase. The liquid crystal compound has 4 or 5 benzene rings, one of which is a chlorofluorobenzene ring. The liquid crystal medium is characterized in containing the liquid crystal compound and a chiral dopant and exhibiting an optically isotropic liquid crystal phase.
    Type: Application
    Filed: May 18, 2010
    Publication date: November 25, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventor: Haseba Yasuhiro
  • Publication number: 20100294992
    Abstract: The invention provides a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a large optical anisotropy, a large dielectric anisotropy, a small pretilt angle, a large specific resistance, a high stability to ultraviolet light, and a high stability to heat, or provides a liquid crystal composition that is properly balanced regarding at least two characteristics. The invention provides an AM device that has a short response time, a large voltage holding ratio, a high contrast ratio, a long service life and so forth.
    Type: Application
    Filed: April 23, 2010
    Publication date: November 25, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Hiroaki FUJITA, Eiki MACHIDA
  • Publication number: 20100294993
    Abstract: The invention provides a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a low viscosity, a large optical anisotropy, a large dielectric anisotropy, a small pretilt angle, a large specific resistance, a high stability to ultraviolet light, and a high stability to heat, or provides a liquid crystal composition that is properly balanced regarding at least two characteristics. The invention provides an AM device that has a short response time, a large voltage holding ratio, a high contrast ratio, a long service life and so forth.
    Type: Application
    Filed: May 17, 2010
    Publication date: November 25, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Hiroaki FUJITA, Eiki MACHIDA
  • Publication number: 20100294991
    Abstract: The invention provides a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, and a high stability to heat, or that is suitably balanced regarding two or more characteristics. The invention provides an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. A liquid crystal display device contains the liquid crystal composition having a nematic phase that includes two components, wherein the first component is a specific compound having a large optical anisotropy and a large dielectric anisotropy and the second component is a specific compound having a small viscosity or a large maximum temperature.
    Type: Application
    Filed: April 28, 2010
    Publication date: November 25, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Masayuki SAITO, Kouki SAGOU
  • Publication number: 20100297367
    Abstract: Subject to be Solved The invention aims to provide a polyamic acid-type photo-alignment layer in a heating process only below approximately 140° C., and to provide an optically anisotropic substance in which various polymerizable liquid crystal compositions are uniformly oriented by use of the layer. Means for Solving the Subject An optically anisotropic substance obtained by applying a polyamic acid varnish which is a composition including a polyamic acid having a divalent azobenzene group in the principal chain or its derivative, or a composition including a mixture of both this polyamic acid or its derivative and other polyamic acids or its derivative as a polymer component, to a supporting substrate, by drying the resultant layer at a temperature range of approximately 50° C. to approximately 140° C.
    Type: Application
    Filed: May 17, 2010
    Publication date: November 25, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: YOSHIHARU HIRAI, NORIO TAMURA
  • Patent number: 7838087
    Abstract: Known compounds showing negative dielectric anisotropy show negative dielectric anisotropy of relatively large values but are not satisfactory in view of the balance of the physical property as the liquid crystal material such as having low clearing point and showing high viscosity. The present invention intends to provide a liquid crystalline compound showing a negative dielectric anisotropy, as well as having excellent balance for physical property such as having relatively high clearing point, relatively low viscosity, appropriate optical anisotropy, and excellent compatibility with other liquid crystalline compounds. The compound of the invention is a compound represented by Formula (1) or Formula (2).
    Type: Grant
    Filed: March 29, 2005
    Date of Patent: November 23, 2010
    Assignees: Chisso Corporation, Chisso Petrochemical Corporation
    Inventors: Syuichi Matsui, Yasuyuki Sasada
  • Publication number: 20100284886
    Abstract: An method for manufacturing a high purity polycrystalline silicon is characterized by comprising: supplying a silicon chloride gas from a silicon chloride gas supply nozzle and a zinc gas from a zinc gas supply nozzle into a vertical reactor, and generating downward a polycrystalline silicon agglomerated in an almost tube shape on the leading end part of the silicon chloride gas supply nozzle by the reaction of the silicon chloride gas and the zinc gas.
    Type: Application
    Filed: July 22, 2010
    Publication date: November 11, 2010
    Applicant: CHISSO CORPORATION
    Inventor: NOBUAKI NAMIKI
  • Publication number: 20100272926
    Abstract: The invention provides a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light, and a high stability to heat, or provides a liquid crystal composition that is properly balanced regarding at least two characteristics. The invention provides an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.
    Type: Application
    Filed: April 14, 2010
    Publication date: October 28, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takashi Hiraoka, Masayuki Saito
  • Publication number: 20100272927
    Abstract: The subject is to provide a liquid crystal composition that satisfies at least one characteristic among the characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of a nematic phase, a small viscosity, a large optical anisotropy, a large dielectric anisotropy, a large specific resistance, a high stability to ultraviolet light and a high stability to heat, or that is suitably balanced regarding at least the two characteristics. It is to provide an AM device that has a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth.
    Type: Application
    Filed: April 14, 2010
    Publication date: October 28, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventors: Takashi Hiraoka, Masayuki Saito
  • Publication number: 20100273937
    Abstract: An organosilicon compound which is obtained by subjecting a compound (A), a compound (B) and a compound (C) to hydrosilylation reaction: (A) silicone and/or silsesquioxane that has two or more Si—H groups per one molecule and has a molecular weight of 100 to 500,000; (B) silicone and/or silsesquioxane that has two or more alkenyl groups per one molecule and has a molecular weight of 100 to 500,000; and (C) a compound that has one or more epoxy or oxetanyl group and an alkenyl group having 2 to 18 carbon atoms per one molecule.
    Type: Application
    Filed: April 22, 2010
    Publication date: October 28, 2010
    Applicant: CHISSO CORPORATION
    Inventors: AKIO TAJIMA, KAZUHIRO YOSHIDA
  • Publication number: 20100273202
    Abstract: A codon-optimization of nucleic acid for coding apo-clytin-II protein is provided. Luminescent activity of clytin-II is remarkably enhanced. Accordingly, compared with the conventional use of the wild-type clytin-II, an intracellular calcium ion can be detected much more easily.
    Type: Application
    Filed: January 27, 2010
    Publication date: October 28, 2010
    Applicant: CHISSO CORPORATION
    Inventors: Satoshi Inouye, Yuiko Sahara, Junichi Sato
  • Publication number: 20100272924
    Abstract: A polymerizable cholesteric liquid crystal composition in the invention includes at least one compound selected from the group consisting of a polymerizable ester compound (1) having a residue of a hydrolysate of ?-oryzanol (A) and having a ring structure, a polymerizable ester compound (2) having a residue of a hydrolysate of ?-oryzanol (A) and having no ring structures, and a polymerizable ester compound (3) having a residue of a hydrogenated product of ?-oryzanol.
    Type: Application
    Filed: April 16, 2010
    Publication date: October 28, 2010
    Applicants: CHISSO CORPORATION, CHISSO PETROCHEMICAL CORPORATION
    Inventor: MAYUMI TANABE