Patents Assigned to JNC Corporation
  • Liquid crystal composition and liquid crystal display device
    Patent number: 10689576
    Abstract: Provided are a liquid crystal composition that contains a polar compound having a polymerizable group, in which vertical alignment of liquid crystal molecules can be achieved by action of the compound (or polymer), and a liquid crystal display device including the composition. The composition satisfies 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 heat.
    Type: Grant
    Filed: June 20, 2016
    Date of Patent: June 23, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventor: Masayuki Saito
  • POLYCYCLIC AROMATIC COMPOUND
    Publication number: 20200190115
    Abstract: The present invention provides a novel polycyclic aromatic compound having a plurality of aromatic rings linked by a boron atom, a nitrogen atom, and the like, and thus increases the number of alternatives of a material for an organic electroluminescent (EL) device. Furthermore, the present invention provides an excellent organic EL device by using a novel polycyclic aromatic compound as a material for an organic EL device.
    Type: Application
    Filed: May 15, 2018
    Publication date: June 18, 2020
    Applicants: Kwansei Gakuin Educational Foundation, JNC Corporation
    Inventors: Takuji Hatakeyama, Yasuhiro KONDO, Yasuyuki SASADA, Motoki YANAI, Toshiaki IKUTA
  • POLYCYCLIC AROMATIC COMPOUND AND LIGHT EMISSION LAYER-FORMING COMPOSITION
    Publication number: 20200190116
    Abstract: The objective of the invention is to provide a polycyclic aromatic compound in which solubility to a solvent, film formability, wet coatability, thermal stability, and in-plane orientation are improved. This objective is achieved by a light emission layer-forming composition comprising: as a first component, at least one type of dopant material selected from the group consisting of polycyclic aromatic compounds represented by general formula (A) and polycyclic aromatic oligomer compounds including a plurality of structures represented by general formula (A); as a second component, a specific low-molecular-weight host material; and, as a third component, at least one type of organic solvent. In formula (A), ring A, ring B, and ring C each independently represent an aryl ring or a hetero aryl ring, Y1 is B, and X1 and X2 each independently represent O or N—R wherein at least one of X1 and X2 is N—R.
    Type: Application
    Filed: February 27, 2020
    Publication date: June 18, 2020
    Applicants: Kwansei Gakuin Educational Foundation, JNC Corporation
    Inventors: Takuji Hatakeyama, Yasuhiro Kondo, Keiichi Nakamoto, Motoki Yanai
  • LIQUID CRYSTAL COMPOSITION AND DEVICE USED FOR PHASE CONTROL OF ELECTROMAGNETIC WAVE SIGNAL
    Publication number: 20200190404
    Abstract: As a material to be used in a device used for phase control of an electromagnetic wave signal with a frequency of 1 MHz to 400 THz, a liquid crystal composition having a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, large optical anisotropy, small dielectric loss, and thermal stability in a frequency range used for phase control and having good balance between characteristics is required. A liquid crystal composition used for phase control of an electromagnetic wave signal with any frequency of 1 MHz to 400 THz containing at least one compound selected from a group consisting of compounds represented by formula (1) and at least one compound selected from a group consisting of compounds represented by formula (2).
    Type: Application
    Filed: October 2, 2019
    Publication date: June 18, 2020
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventor: Eiji OKABE
  • POLYMERIZABLE POLAR COMPOUND, LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE
    Publication number: 20200190016
    Abstract: Provide is a polar compound having high chemical stability, high capability of aligning liquid crystal molecules, high solubility in a liquid crystal composition, and a large voltage holding ratio when the compound is used in a liquid crystal display device. A compound represented by formula (1) is applied. For example, in formula (1), P1 is any one of formulas (1b) to (1i), Sp is a single bond, Z is —COO—, and A is 1,4-phenylene.
    Type: Application
    Filed: July 5, 2018
    Publication date: June 18, 2020
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Tomohiro YANO, Fumitaka KONDOU, Kazuhiro OGITA, Hiroki SAGO, Yoshiharu HIRAI
  • Polycyclic aromatic compound
    Patent number: 10686141
    Abstract: By providing a novel polycyclic aromatic compound in which a plurality of aromatic rings are linked via a boron atom, a nitrogen atom, or the like, options of a material for an organic EL element are increased. In addition, by using the novel polycyclic aromatic compound as a material for an organic electroluminescent element, an excellent organic EL element is provided.
    Type: Grant
    Filed: September 6, 2017
    Date of Patent: June 16, 2020
    Assignees: Kwansei Gakuin Educational Foundation, JNC Corporation
    Inventors: Takuji Hatakeyama, Soichiro Nakatsuka, Hajime Gotoh, Yasuyuki Sasada, Motoki Yanai, Toshiaki Ikuta
  • REVERSE MODE LIQUID CRYSTAL DEVICE
    Publication number: 20200183203
    Abstract: Provided is a reverse mode light scattering type liquid crystal device that is capable of withstanding practical use, has a low driving voltage, and shows a high haze when voltage is applied and a low haze when no voltage is applied. A reverse mode liquid crystal device includes a light control layer and at least a pair of electrodes, wherein the light control layer includes a polymerization product of a polymerizable material including: (A) a liquid crystal composition, (B) a perpendicular alignment agent, and (C) at least one polymerizable compound selected from polymer forming monomers and polymer forming oligomers.
    Type: Application
    Filed: December 8, 2017
    Publication date: June 11, 2020
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Mayumi TANABE, Yoshinari MATSUMURA, Hiroaki FUJITA
  • Composition for heat-dissipating member, heat-dissipating member, electronic instrument, method for producing composition for heat-dissipating member, and method for producing heat-dissipating member
    Patent number: 10679922
    Abstract: The inventions are: a composition capable of forming a heat-dissipating member that has high thermal conductivity and in which the thermal expansion coefficient can be controlled; and a heat-dissipating member. This composition for a heat-dissipating member comprises a thermally conductive first inorganic filler bonded to one end of a first coupling agent, and a thermally conductive second inorganic filler bonded to one end of a second coupling agent, the composition being characterized in that: at least one of the first coupling agent and the second coupling agent is a liquid crystal silane coupling agent; the other end of the first coupling agent and the other end of the second coupling agent each have a functional group bondable with one another; and the other end of the first coupling agent bonds with the other end of the second coupling agent by a curing treatment.
    Type: Grant
    Filed: February 28, 2017
    Date of Patent: June 9, 2020
    Assignees: JNC CORPORATION, OSAKA RESEARCH INSTITUTE OF INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Takeshi Fujiwara, Jyunichi Inagaki, Masako Hinatsu, Yasuyuki Agari, Hiroshi Hirano, Joji Kadota, Akinori Okada
  • Compound having naphthalene ring, liquid crystal composition and liquid crystal display device
    Patent number: 10676669
    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: Grant
    Filed: March 24, 2017
    Date of Patent: June 9, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Mayumi Goto, Sayaka Fujimori
  • Polycyclic aromatic compound and light emitting layer-forming composition
    Patent number: 10680186
    Abstract: The present invention addresses the problem of providing a polycyclic aromatic compound which has improved solubility in solvents, film formability, wet coatability and in-plane orientation. The above-described problem is solved by a composition for forming a light emitting layer, which contains, as a first component, at least one compound selected from the group consisting of compounds represented by general formula (A-1) and compounds represented by general formula (A-2), as a second component, at least one compound that has a triplet energy (ET) of 1.8-3.0 eV, and as a third component, at least one organic solvent. In the formulae, R represents a hydrogen atom, an aryl group, a heteroaryl group, a diarylamino group, a diheteroarylamino group or an aryl heteroarylamino group.
    Type: Grant
    Filed: March 2, 2016
    Date of Patent: June 9, 2020
    Assignees: Kwansei Gakuin Educational Foundation, JNC Corporation
    Inventors: Takuji Hatakeyama, Yasuhiro Kondo, Keiichi Nakamoto, Motoki Yanai
  • ORGANIC ELECTROLUMINESCENT ELEMENT
    Publication number: 20200176680
    Abstract: Provided is an organic electroluminescent element including a light emitting layer containing, as a dopant, at least two compounds selected from a compound group consisting of a polycyclic aromatic compound represented by the following general formula (1) and a multimer thereof: wherein the symbols are defined in the specification.
    Type: Application
    Filed: June 12, 2018
    Publication date: June 4, 2020
    Applicants: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, JNC CORPORATION
    Inventors: Takuji HATAKEYAMA, Katsuya MASUDA, Motoki YANAI
  • CULTURE MEDIUM FOR DETECTING ENTEROCOCCUS AND METHOD FOR DETECTING SAME
    Publication number: 20200165657
    Abstract: An object is to provide a culture medium in which Enterococcus can be selectively detected. The culture medium for detecting Enterococcus contains an ionic surfactant and polyvinyl alcohol. The culture medium for detecting Enterococcus may further contain a suppressant on Gram-negative bacteria and a ?-glucosidase substrate from which a colored chromogen compound can be released.
    Type: Application
    Filed: October 3, 2016
    Publication date: May 28, 2020
    Applicant: JNC CORPORATION
    Inventors: Hajime TERAMURA, Mihoko IWASAKI
  • Spinneret for electrostatic spinning
    Patent number: 10662553
    Abstract: A spinneret (1) for electrostatic spinning is configured from a structure of an electrically conductive metal material. The structure is provided with a long-axis direction (X), a short-axis direction (Z), and a thickness direction (Y). An inflow port (10) for a spinning starting material fluid is provided to one surface of the structure. A plurality of protrusions (5) are formed on another surface of the structure so as to be aligned along the long-axis direction (X). Each of the plurality of protrusion (5) extends so as to protrude from the structure. The protrusions (5) have, provided to apexes (2) thereof, discharge holes (4) for discharging the starting material fluid. The pitch of the discharge holes (4) exceeds 1 mm.
    Type: Grant
    Filed: July 31, 2015
    Date of Patent: May 26, 2020
    Assignees: JNC CORPORATION, JNC FIBERS CORPORATION
    Inventors: Shimpei Hiramoto, You Umebayashi, Taiju Terakawa, Minoru Miyauchi
  • Polymerizable polar compound, liquid crystal composition and liquid crystal display device
    Patent number: 10662379
    Abstract: Shown is a compound represented by formula (1). For example, R1 is alkyl having 1 to 15 carbons; MES is a mesogen group having at least one ring; Sp1 is a single bond or alkylene having 1 to 10 carbons; M1 is methyl; and R2, M2 and M3 are hydrogen.
    Type: Grant
    Filed: June 29, 2016
    Date of Patent: May 26, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Kazuhiro Ogita, Masakazu Yano, Hiroyuki Tanaka, Fumitaka Kondou
  • Compound having fluorodibenzofuran ring, liquid crystal composition and liquid crystal display device
    Patent number: 10662378
    Abstract: Provided are liquid crystal compounds satisfying at least one of physical properties such as high stability to heat or light, a high clearing point (or high maximum temperature), low minimum temperature of a liquid crystal phase, small viscosity, large optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and good compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. The compound is represented by formula (1): wherein R1 and R2 are independently hydrogen or alkyl having 1 to 15 carbons; and A1, A2 and A3 are independently 1,4-cyclohexylene or 1,4-phenylene; Z1, Z2 and Z3 are independently a single bond; Y1, Y2, Y3 and Y4 are independently hydrogen, fluorine or the like; and a, b and c are independently 0 or 1, and a sum of a, b and c is 0 to 3.
    Type: Grant
    Filed: March 12, 2018
    Date of Patent: May 26, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Ayako Mori, Hiroyuki Tanaka
  • LIQUID CRYSTAL COMPOSITE AND LIQUID CRYSTAL DIMMING DEVICE
    Publication number: 20200157426
    Abstract: A liquid crystal composite that contains a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, large optical anisotropy and large positive dielectric anisotropy, and that is suitable for dimming, or having a suitable balance regarding at least two of the characteristics; and a liquid crystal dimming device having the liquid crystal composite. The liquid crystal composite contains a polymer and a liquid crystal composition containing a specific compound having large positive dielectric anisotropy. The liquid crystal composite may further contain a specific compound having high maximum temperature or low minimum temperature; or a specific compound having large negative dielectric anisotropy.
    Type: Application
    Filed: July 18, 2018
    Publication date: May 21, 2020
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Naoko MATSUDA, YOSHINARI MATSUMURA, MAYUMI TANABE
  • Liquid crystal composition and liquid crystal display device
    Patent number: 10655065
    Abstract: A liquid crystal compound comprising a specific compound having a positive dielectric anisotropy as the first component, and a specific compound having a low viscosity as a second component. Further, the liquid crystal compound may contain a specific compound having a positive dielectric anisotropy as the third component, a specific compound having a maximum temperature or a low viscosity as the fourth component, or a specific compound having a negative dielectric anisotropy as the fifth component.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: May 19, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Maiko Matsukuma, Masayuki Saito
  • Liquid crystal composition and liquid crystal display device
    Patent number: 10655063
    Abstract: Provided are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, low viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or having a suitable balance regarding at least two of the characteristics; and an AM device including the composition. The liquid crystal composition contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having high maximum temperature or low viscosity as a second component, and may contain a specific compound having negative dielectric anisotropy as a third component, or a specific compound having a polymerizable group as an additive.
    Type: Grant
    Filed: October 16, 2017
    Date of Patent: May 19, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Masayuki Saito, Eriko Kurihara
  • Liquid crystal composition and liquid crystal display device
    Patent number: 10647921
    Abstract: A liquid crystal composition includes a polymerizable compound (or polymer) and a polar compound, where the homeotropic alignment of liquid crystal molecules can be achieved by the action of these compounds, and a liquid crystal display device includes such a composition. A nematic liquid crystal composition has positive dielectric anisotropy and includes a polymerizable compound as a first additive and a polar compound as a second additive, and the composition may include a specific liquid crystal compound having a large positive dielectric anisotropy and a specific liquid crystal compound having a high maximum temperature or a small viscosity, and a liquid crystal display device includes such a composition.
    Type: Grant
    Filed: February 18, 2016
    Date of Patent: May 12, 2020
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Naoko Matsuda, Masayuki Saito
  • Culture device
    Patent number: D884211
    Type: Grant
    Filed: August 13, 2018
    Date of Patent: May 12, 2020
    Assignee: JNC CORPORATION
    Inventor: Hajime Teramura