Patents by Inventor CHIKAHIDE KANADANI

CHIKAHIDE KANADANI 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).

  • Piperidine derivative, liquid crystal composition and liquid crystal display device
    Patent number: 10053425
    Abstract: To provide a compound having an effect for preventing photolysis of a liquid crystal composition, and having a high solubility in the liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1), the liquid crystal composition contains the compound, and the liquid crystal display device includes the composition. In formula (1), R1, R2, R3 and R4 are independently hydrogen or alkyl having 1 to 4 carbons; ring A1 and ring A2 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1, Z2 and Z3 are independently a single bond, alkylene or the like; and n is 0, 1 or 2.
    Type: Grant
    Filed: October 29, 2014
    Date of Patent: August 21, 2018
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yasuyuki Gotoh, Kenji Hirata, Maiko Matsukuma, Chikahide Kanadani
  • PIPERIDINE DERIVATIVE, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY ELEMENT
    Publication number: 20160289189
    Abstract: To provide a compound having an effect for preventing photolysis of a liquid crystal composition, and having a high solubility in the liquid crystal composition, a liquid crystal composition containing the compound, and a liquid crystal display device including the composition. The compound is represented by formula (1), the liquid crystal composition contains the compound, and the liquid crystal display device includes the composition. In formula (1), R1, R2, R3 and R4 are independently hydrogen or alkyl having 1 to 4 carbons; ring A1 and ring A2 are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1, Z2 and Z3 are independently a single bond, alkylene or the like; and n is 0, 1 or 2.
    Type: Application
    Filed: October 29, 2014
    Publication date: October 6, 2016
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yasuyuki Gotoh, Kenji Hirata, Maiko Matsukuma, Chikahide Kanadani
  • Liquid crystal composition and liquid crystal display device
    Patent number: 9057019
    Abstract: A liquid crystal composition is described, which has a nematic phase, contains a specific compound having a high maximum temperature or a large dielectric anisotropy as a first component and a specific compound having a large dielectric anisotropy as a second component, and may also contain a specific compound having a high maximum temperature or a small viscosity as a third component and a specific compound having a high maximum temperature or a large dielectric anisotropy as a fourth component. An active-matrix (AM) liquid crystal display device including the liquid crystal composition is also described.
    Type: Grant
    Filed: September 13, 2013
    Date of Patent: June 16, 2015
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Takayoshi Yanai, Yasuyuki Gotoh, Chikahide Kanadani, Hiroki Ookawa
  • Liquid crystal composition, antioxidant and liquid crystal display device
    Patent number: 9045684
    Abstract: To provide a liquid crystal composition satisfying at least one characteristic such as high maximum temperature of nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy and specific resistance, high stability to ultraviolet light and heat; a liquid crystal composition having a suitable balance regarding at least two thereof; and an AM device including the composition.
    Type: Grant
    Filed: July 19, 2013
    Date of Patent: June 2, 2015
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Yasuyuki Gotoh, Teizi Satou, Maiko Matsukuma, Chikahide Kanadani, Yoshimasa Furusato
  • LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20140084210
    Abstract: A liquid crystal composition is described, which has a nematic phase, contains a specific compound having a high maximum temperature or a large dielectric anisotropy as a first component and a specific compound having a large dielectric anisotropy as a second component, and may also contain a specific compound having a high maximum temperature or a small viscosity as a third component and a specific compound having a high maximum temperature or a large dielectric anisotropy as a fourth component. An active-matrix (AM) liquid crystal display device including the liquid crystal composition is also described.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 27, 2014
    Applicants: JNC PETROCHEMICAL CORPORATION, JNC CORPORATION
    Inventors: TAKAYOSHI YANAI, YASUYUKI GOTOH, CHIKAHIDE KANADANI, HIROKI OOKAWA
  • LIQUID CRYSTAL COMPOSITION, ANTIOXIDANT AND LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20140027671
    Abstract: To provide a liquid crystal composition satisfying at least one characteristic such as high maximum temperature of nematic phase, low minimum temperature thereof, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy and specific resistance, high stability to ultraviolet light and heat; a liquid crystal composition having a suitable balance regarding at least two thereof; and an AM device including the composition.
    Type: Application
    Filed: July 19, 2013
    Publication date: January 30, 2014
    Inventors: YASUYUKI GOTOH, TEIZI SATOU, MAIKO MATSUKUMA, CHIKAHIDE KANADANI, YOSHIMASA FURUSATO