Patents by Inventor Yoichi Uriu

Yoichi Uriu 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).

  • Liquid crystal composition used in element for phase control of electromagnetic wave signal
    Patent number: 11492551
    Abstract: As a material used in an element used for phase control of an electromagnetic wave signal having a frequency of 1 GHz to 10 THz, a liquid crystal composition is required, which has a high upper limit temperature of a nematic phase, a low lower limit temperature of a nematic phase, large dielectric anisotropy and a small tan ? in a frequency region where the phase control of an electromagnetic wave signal is performed, and stability against heat, and which has an excellent balance of the characteristics. A liquid crystal composition which is used in an element for phase control of an electromagnetic wave signal having any frequency from 1 GHz to 10 THz, the liquid crystal composition containing at least one compound selected from compounds represented by Formula (1) as a first component.
    Type: Grant
    Filed: September 8, 2021
    Date of Patent: November 8, 2022
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Takanori Mori, Yoichi Uriu, Eiji Okabe, Hitoshi Tobata
  • LIQUID CRYSTAL COMPOSITION USED IN ELEMENT FOR PHASE CONTROL OF ELECTROMAGNETIC WAVE SIGNAL
    Publication number: 20220081618
    Abstract: As a material used in an element used for phase control of an electromagnetic wave signal having a frequency of 1 GHz to 10 THz, a liquid crystal composition is required, which has a high upper limit temperature of a nematic phase, a low lower limit temperature of a nematic phase, large dielectric anisotropy and a small tan ? in a frequency region where the phase control of an electromagnetic wave signal is performed, and stability against heat, and which has an excellent balance of the characteristics. A liquid crystal composition which is used in an element for phase control of an electromagnetic wave signal having any frequency from 1 GHz to 10 THz, the liquid crystal composition containing at least one compound selected from compounds represented by Formula (1) as a first component.
    Type: Application
    Filed: September 8, 2021
    Publication date: March 17, 2022
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Takanori MORI, Yoichi URIU, Eiji OKABE, Hitoshi TOBATA
  • Liquid crystal composition used for phase control of electromagnetic wave signal
    Patent number: 11155753
    Abstract: There is provided a liquid crystal composition which has favorable characteristics and excellent characteristic balance as a material for an element used for phase control of an electromagnetic wave signal with a frequency of 1 MHz to 400 THz.
    Type: Grant
    Filed: October 21, 2019
    Date of Patent: October 26, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Norio Tamura, Yoichi Uriu, Eiji Okabe, Koki Sago
  • LIQUID CRYSTAL ELEMENT USED FOR PHASE CONTROL OF ELECTROMAGNETIC WAVE SIGNAL
    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
  • LIQUID CRYSTAL COMPOSITION USED FOR PHASE CONTROL OF ELECTROMAGNETIC WAVE SIGNAL
    Publication number: 20200224099
    Abstract: There is provided a liquid crystal composition which has favorable characteristics and excellent characteristic balance as a material for an element used for phase control of an electromagnetic wave signal with a frequency of 1 MHz to 400 THz.
    Type: Application
    Filed: October 21, 2019
    Publication date: July 16, 2020
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Norio TAMURA, Yoichi Uriu, Eiji OKABE, KOKI SAGO