Patents by Inventor Sayaka Fujimori

Sayaka Fujimori 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).

  • Publication number: 20190078019
    Abstract: A compound represented by formula (1), a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. R is alkyl having 1 to 15 carbons or the like; ring A1 and ring A2 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1 and Z2 are independently a single bond, —COO— or the like; Y1, Y2 and Y3 are independently hydrogen, fluorine or chlorine; and m is 0, 1 or 2.
    Type: Application
    Filed: March 24, 2017
    Publication date: March 14, 2019
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Mayumi GOTO, Sayaka FUJIMORI
  • Patent number: 9879182
    Abstract: A liquid crystal compound satisfies at least one of physical properties such as a high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a suitable elastic constant and an excellent compatibility with other liquid crystal compounds. The compound is represented by formula (1). In the formula, for example, R1 and R2 are alkyl having 1 to 15 carbons; ring A1 and ring A2 are 1,4-cyclohexylene or 1,4-phenylene, Z1 and Z2 are a single bond, —(CH2)2—, —CH?CH—, —C?C—, —COO—, —OCO—, —CH2O—, —OCH2—, —CF2O—, —OCF2— or —CF?CF—, a and b are 0, 1 or 2, and a sum of a and b is 1 or 2.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: January 30, 2018
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventor: Sayaka Fujimori
  • Patent number: 9879183
    Abstract: To show a liquid crystal compound satisfying at least one of physical properties such as high chemical stability, a high clearing point, a low minimum temperature of a liquid crystal phase, low viscosity, large optical anisotropy, large dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1).
    Type: Grant
    Filed: June 4, 2015
    Date of Patent: January 30, 2018
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Michiko Takahashi, Sayaka Fujimori, Yasuyuki Sasada
  • Publication number: 20170107427
    Abstract: To show a liquid crystal compound satisfying at least one of physical properties such as high chemical stability, a high clearing point, a low minimum temperature of a liquid crystal phase, low viscosity, large optical anisotropy, large dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1).
    Type: Application
    Filed: June 4, 2015
    Publication date: April 20, 2017
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: MICHIKO TAKAHASHI, SAYAKA FUJIMORI, YASUYUKI SASADA
  • Patent number: 9546181
    Abstract: The subject is to provide a liquid crystal compound satisfying at least one of physical properties such as a high stability to heat or light, a high clearing point (or a high maximum temperature), a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectic anisotropy, a suitable elastic constant and an excellent compatibility with any other liquid crystal compound, a liquid crystal composition including this compound and a liquid crystal display device including this composition. The compound is represented by the following formula (1a): wherein R1 is alkyl having 1 to 15 carbons or the like; ring A1, ring A2, ring A3 and ring A4 are independently 1,4-phenylene, naphthalene-2,6-diyl or the like; Z1 and Z2 are independently a single bond or the like; o and p are independently 0, 1 or 2; and n is an integer from 2 to 10.
    Type: Grant
    Filed: November 24, 2015
    Date of Patent: January 17, 2017
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Sayaka Fujimori, Hiroyuki Tanaka
  • Patent number: 9394272
    Abstract: A liquid-crystal compound satisfying at least one physical property such as a high clearing point, large dielectric anisotropy and excellent compatibility with other liquid-crystal compounds is described; a liquid-crystal composition containing the compound; and a liquid-crystal display device. The compound is represented by formula (1): wherein, R1 and R2 are independently alkyl having 1 to 15 carbons, and in the alkyl, at least one —CH2— may be replaced by —O—, —CH?CH— or the like; ring A1, ring A2 and ring A3 are independently 1,4-cyclohexylene, 1,4-phenylene or the like, and at least one ring A1, ring A2 or ring A3 is represented by formula (A): wherein, X1 and X2 are independently hydrogen or halogen; and Z1, Z2 and Z3 are independently a single bond, —(CH2)2— or the like; and a, b and c are independently 0 or 1, and a sum of a, b and c is 1, 2 or 3.
    Type: Grant
    Filed: June 18, 2015
    Date of Patent: July 19, 2016
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventor: Sayaka Fujimori
  • Publication number: 20160152636
    Abstract: Subject The subject is to provide a liquid crystal compound satisfying at least one of physical properties such as a high stability to heat or light, a high clearing point (or a high maximum temperature), a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a suitable elastic constant and an excellent compatibility with any other liquid crystal compound, a liquid crystal composition including this compound, and a liquid crystal display device including this composition. Means for solution The means concerns a compound represented by formula (1a). In formula (1a), R1 is alkyl having 1 to 15 carbons or the like; ring A1, ring A2, ring A3 and ring A4 are independently 1,4-phenylene, naphthalene-2,6-diyl or the like; Z1 and Z2 are independently a single bond or the like; o and p are independently 0, 1 or 2; and n is an integer from 2 to 10.
    Type: Application
    Filed: November 24, 2015
    Publication date: June 2, 2016
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Sayaka FUJIMORI, Hiroyuki TANAKA
  • Publication number: 20160068754
    Abstract: A liquid crystal compound satisfies at least one of physical properties such as a high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large negative dielectric anisotropy, a suitable elastic constant and an excellent compatibility with other liquid crystal compounds. The compound is represented by formula (1). In the formula, for example, R1 and R2 are alkyl having 1 to 15 carbons; ring A1 and ring A2 are 1,4-cyclohexylene or 1,4-phenylene, Z1 and Z2 are a single bond, —(CH2)2—, —CH?CH—, —C?C—, —COO—, —OCO—, —CH2O—, —OCH2—, —CF2O—, —OCF2— or —CF?CF—, a and b are 0, 1 or 2, and a sum of a and b is 1 or 2.
    Type: Application
    Filed: March 25, 2014
    Publication date: March 10, 2016
    Inventor: SAYAKA FUJIMORI
  • Publication number: 20150368225
    Abstract: A liquid-crystal compound satisfying at least one physical property such as a high clearing point, large dielectric anisotropy and excellent compatibility with other liquid-crystal compounds is described; a liquid-crystal composition containing the compound; and a liquid-crystal display device. The compound is represented by formula (1): wherein, R1 and R2 are independently alkyl having 1 to 15 carbons, and in the alkyl, at least one —CH2— may be replaced by —O—, —CH?CH— or the like; ring A1, ring A2 and ring A3 are independently 1,4-cyclohexylene, 1,4-phenylene or the like, and at least one ring A1, ring A2 or ring A3 is represented by formula (A): wherein, X1 and X2 are independently hydrogen or halogen; and Z1, Z2 and Z3 are independently a single bond, —(CH2)2— or the like; and a, b and c are independently 0 or 1, and a sum of a, b and c is 1, 2 or 3.
    Type: Application
    Filed: June 18, 2015
    Publication date: December 24, 2015
    Inventor: SAYAKA FUJIMORI
  • Patent number: 9109157
    Abstract: The invention provides a liquid crystal compound having general physical properties necessary for the liquid crystal compound, namely, stability to heat, light and so forth, a small viscosity, a refractive index anisotropy having a suitable magnitude value, a dielectric anisotropy having a suitable magnitude value, steep electrooptical characteristics, a wide temperature range of a nematic phase, and an excellent compatibility with other liquid crystal compounds, in particular, a liquid crystal compound having a wide temperature range of the nematic phase; a compound represented by formula (i): wherein, for example, R1 and R2 are alkyl having 1 to 8 carbons or alkenyl having 2 to 8 carbons; ring A1 is trans-1,4-cyclohexylene or 1,4-phenylene; ring A2 is trans-1,4-cyclohexylene or 2,3-difluoro-1,4-phenylene; Q1 and Q2 are fluorine or chlorine; and h is 0, 1 or 2.
    Type: Grant
    Filed: September 27, 2010
    Date of Patent: August 18, 2015
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Junichi Yamashita, Masahide Kobayashi, Sayaka Fujimori
  • Patent number: 9102871
    Abstract: To provide a liquid crystal compound having a large negative value of dielectric anisotropy (??). A compound is represented by formula (1): wherein, in formula (1), one of Y1 and Y2 is fluorine, and the other is CF2H or CF3; G is a ring represented by formula (pr-1) or formula (pr-2): wherein A1 to A3 are independently 1,4-cyclohexylene or 1,4-phenylene; Ra and Rb are independently hydrogen, alkyl having 1 to 20 carbons, or the like; Z0, and Z1 to Z3 are independently a single bond, —(CH2)2—, —CH?CH—, —CF2O—, —OCF2—, —CH2O—, —OCH2—, —COO— or —OCO—; j, m and n are an integer from 0 to 2, and a sum of j, m and n is 0, 1 or 2, however, when m is 0, Y1 is CF2H or CF3, Y2 is fluorine, and Z0 is a single bond, G is a ring represented by formula (pr-1).
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: August 11, 2015
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Mayumi Goto, Sayaka Fujimori
  • Patent number: 8999196
    Abstract: The invention is to provide a new liquid crystal compound having a high clearing point, a good compatibility with other compounds, a small viscosity, and a high stability to heat, light and so forth; compound (1) is provided: R1CF2nR2??(1) wherein, for example, R1 is alkyl having 4 to 10 carbons or —(CH2)2—CH?CH2, R2 is alkyl having 2 to 10 carbons, n is 8, and R1 and R2 are not allowed to be straight-chain alkyl having an identical number of carbons.
    Type: Grant
    Filed: August 23, 2012
    Date of Patent: April 7, 2015
    Assignees: JNC Corporation, JNC Petrochemical Corporation
    Inventors: Hiroyuki Tanaka, Sayaka Fujimori
  • Publication number: 20130277610
    Abstract: To provide a liquid crystal compound having a large negative value of dielectric anisotropy (As). A compound is represented by formula (1): wherein, in formula (1), one of Y1 and Y2 is fluorine, and the other is CF2H or CF3; G is a ring represented by formula (pr-1) or formula (pr-2): wherein A1 to A3 are independently 1,4-cyclohexylene or 1,4-phenylene; Ra and Rb are independently hydrogen, alkyl having 1 to 20 carbons, or the like; Z0, and Z1 to Z3 are independently a single bond, —(CH2)2—, —CH?CH—, —CF2O—, —OCF2—, —CH2O—, —OCH2—, —COO— or —OCO—; j, m and n are an integer from 0 to 2, and a sum of j, m and n is 0, 1 or 2, however, when m is 0, Y1 is CF2H or CF3, Y2 is fluorine, and Z0 is a single bond, G is a ring represented by formula (pr-1).
    Type: Application
    Filed: April 18, 2013
    Publication date: October 24, 2013
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Mayumi GOTO, Sayaka FUJIMORI
  • Publication number: 20130048913
    Abstract: The invention is to provide a new liquid crystal compound having a high clearing point, a good compatibility with other compounds, a small viscosity, and a high stability to heat, light and so forth; compound (1) is provided: R1?CF2?nR2??(1) wherein, for example, R1 is alkyl having 4 to 10 carbons or —(CH2)2—CH?CH2, R2 is alkyl having 2 to 10 carbons, n is 8, and R1 and R2 are not allowed to be straight-chain alkyl having an identical number of carbons.
    Type: Application
    Filed: August 23, 2012
    Publication date: February 28, 2013
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Hiroyuki TANAKA, Sayaka FUJIMORI
  • Publication number: 20120190897
    Abstract: The invention provides a liquid crystal compound having general physical properties necessary for the liquid crystal compound, namely, stability to heat, light and so forth, a small viscosity, a refractive index anisotropy having a suitable magnitude value, a dielectric anisotropy having a suitable magnitude value, steep electrooptical characteristics, a wide temperature range of a nematic phase, and an excellent compatibility with other liquid crystal compounds, in particular, a liquid crystal compound having a wide temperature range of the nematic phase; a compound represented by formula (i): wherein, for example, R1 and R2 are alkyl having 1 to 8 carbons or alkenyl having 2 to 8 carbons; ring A1 is trans-1,4-cyclohexylene or 1,4-phenylene; ring A2 is trans-1,4-cyclohexylene or 2,3-difluoro-1,4-phenylene; Q1 and Q2 are fluorine or chlorine; and h is 0, 1 or 2.
    Type: Application
    Filed: September 27, 2010
    Publication date: July 26, 2012
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: Junichi Yamashita, Masahide Kobayashi, Sayaka Fujimori