Patents Assigned to JNC Corporation
  • 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
  • Publication number: 20220193586
    Abstract: This depth filter comprises a substrate layer, a filtration layer, and a skin layer in this order. The substrate layer and the skin layer are layers obtained by winding and thermally fusing a nonwoven cloth configured from fibers having an average fiber diameter of 150 ?m or more. The filtration layer is a layer obtained by winding a layered body two or more times, the layered body containing at least a net and a nonwoven cloth included only in the filtration layer. The average fiber diameter of the nonwoven cloth constituting the substrate layer and the average fiber diameter of the nonwoven cloth constituting the skin layer are larger than the average fiber diameter of the nonwoven cloth included only in the filtration layer.
    Type: Application
    Filed: March 24, 2020
    Publication date: June 23, 2022
    Applicants: JNC CORPORATION, JNC FILTER CO., LTD.
    Inventors: Ryota MINEO, Hisato NISHIHARA, Osamu YAMAGUCHI, Kazuki KANARI
  • Publication number: 20220176283
    Abstract: Provided are: a filter medium with high dust collection efficiency, low pressure loss, and a long lifespan; and a filter material used for the filter medium. This composite structure includes ultrafine fibers having a fiber diameter of less than 500 nm, and beads. The outermost surface of the composite structure has at least 500/mm2 of beads with a diameter of 5 ?m or more. The ultrafine fibers and the beads preferably have the same component.
    Type: Application
    Filed: March 11, 2020
    Publication date: June 9, 2022
    Applicants: JNC CORPORATION, JNC FIBERS CORPORATION
    Inventors: You UMEBAYASHI, Shimpei HIRAMOTO, Hidemi ITO
  • Publication number: 20220165243
    Abstract: The present invention addresses the problem of providing a sound absorbing material which exhibits excellent sound absorbing performance in low-frequency and intermediate-frequency ranges, and preferably also in higher-frequency ranges. This laminated sound absorbing material includes at least: a fiber layer; and a porous layer, wherein the fiber layer has a mean flow pore size of 1.0-60 ?m and an air permeability as measured with a Frazier method of 30-220 cc/cm2·s, and the porous layer comprises at least one selected from the group consisting of foamed resins, unwoven fabrics, and woven fabrics, has a thickness of 3-40 mm and a density of 3-50 kg/m3 which is lower than that of the fiber layer, and is disposed such that the fiber layer is on a sound incidence side.
    Type: Application
    Filed: September 5, 2019
    Publication date: May 26, 2022
    Applicants: JNC CORPORATION, JNC FIBERS CORPORATION
    Inventors: Takayuki HATTORI, Hidemi ITO
  • Patent number: 11312804
    Abstract: A polymerizable compound represented by formula (1). In formula (1), one of eight hydrogen atoms is substituted by a (meth)acryloyloxy group, and the rest seven hydrogen atoms are independently non-substituted or substituted by a saturated hydrocarbon group having 1 to 10 carbons.
    Type: Grant
    Filed: February 13, 2019
    Date of Patent: April 26, 2022
    Assignee: JNC CORPORATION
    Inventors: Koichi Shibata, Teizi Satou, Daisuke Inoki, Hideki Hayashi
  • Publication number: 20220119710
    Abstract: A material used in an element for phase control of an electromagnetic wave signal having a frequency of 1 GHz to 10 THz. A liquid crystal composition containing at least one compound selected from a group of compounds represented by Formula (1), at least one compound selected from a group of compounds represented by Formula (2) and at least one compound selected from a group of compounds represented by Formula (3). For example, R1, R21, R22, R31, and R32 are alkyls having 1 to 12 carbon atoms; a ring A1 is 1,4-phenylene; Z11, Z13, Z21, Z23, Z31, and Z33 are single bonds; Z12, Z22, and Z32 are —C?C— or —C?C—C?C—; L13 to L16, L21 to L23, and L31 to L36 are hydrogen or fluorine; Y11 and Y12 are hydrogen or fluorine; and n1 is 0.
    Type: Application
    Filed: July 13, 2021
    Publication date: April 21, 2022
    Applicants: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Eiji OKABE, Takanori MORI, Yuko KATANO
  • Patent number: 11306053
    Abstract: [Problem] An ester compound having low viscosity, excellent fluidity even at low temperatures, and a high viscosity index; and a lubricating oil base oil containing said compound are provided. [Solution] The present invention provides an ester compound indicated by formula (I). Formula (I) (in formula (I), R1 is a hydrocarbon group having 1 to 35 carbon atoms and at least one hydrogen in the hydrocarbon group may be independently substituted with a group indicated by formula (II)). Formula (II) (in formula (II), R2 is a linear alkyl having 1 to 30 carbon atoms or a branched alkyl having 3 to 30 carbon atoms.
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: April 19, 2022
    Assignees: DAISAN KASEI CO., LTD, JNC CORPORATION
    Inventors: Yasuo Urata, Tetsuya Isaka, Taichi Shimada
  • Patent number: 11299675
    Abstract: 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; and a composition containing the compound. The compound is represented by formula (1).
    Type: Grant
    Filed: July 13, 2018
    Date of Patent: April 12, 2022
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Tomohiro Yano, Fumitaka Kondo, Hiroki Sago
  • Publication number: 20220096976
    Abstract: A depth filter with excellent filtration accuracy and pressure resistance performance even for fluids containing high density and high viscosity powder fine particles. A depth filter having a base material layer, a filtration layer, and a skin layer, in that order, wherein: the substrate layer and the skin layer are layers made by a nonwoven fabric being wound and thermally fused; the filtration layer is a laminate in which at least a nonwoven fabric and a net are laminated, being wound twice or more; and the nonwoven fabric contained in the filtration layer contains a mixed-fiber nonwoven fabric containing two or more types of fibers with mutually different average fiber diameters.
    Type: Application
    Filed: September 18, 2019
    Publication date: March 31, 2022
    Applicants: JNC CORPORATION, JNC FILTER CO., LTD.
    Inventors: Ryota MINEO, Hisato NISHIHARA, Osamu YAMAGUCHI
  • 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
  • Patent number: 11268106
    Abstract: The present invention provides a method of designing an optimized gene which comprises altering a nucleotide sequence of a target protein gene, so that only preferential codons with high frequency of use in human cells are selected and a GC content of not less than 60% is achieved. A gene design method which involves the feature “only preferential codons with high frequency of use are selected and a GC content of not less than 60% is achieved” can be established as a general rule for preparing proteins with high expression level, in order to obtain chemically synthesized genes for proteins capable of high-level expression in eukaryotes.
    Type: Grant
    Filed: December 11, 2018
    Date of Patent: March 8, 2022
    Assignee: JNC CORPORATION
    Inventor: Satoshi Inouye
  • Publication number: 20220064211
    Abstract: A chromatography carrier capable of removing an antibody dimer from a solution containing an antibody monomer. The chromatography carrier includes a base carrier containing porous particles and a hydrophobic ligand bound to the base carrier, and has an electric conductivity of 34 mS/cm or less measured by a gradient elution test. The porous particles preferably have an average particle diameter of 66 to 150 ?m, and the hydrophobic ligand preferably has at least one selected from a group consisting of phenyl, n-butyl, n-hexyl, n-octyl, and n-octadecyl.
    Type: Application
    Filed: August 19, 2021
    Publication date: March 3, 2022
    Applicant: JNC CORPORATION
    Inventors: Kojiro SOTA, Yoshihiro MATSUMOTO
  • Publication number: 20220025123
    Abstract: A condensation-curable resin composition which contains: (A) an organosilicon compound containing a structural unit (i) represented by the following formula (i) and a structural unit (ii) represented by the following formula (ii), having a SiOH group at both ends of the molecular chain, and having a weight average molecular weight of 10,000 or more and 10,000,000 or less; and (B) an organometallic compound having three or more condensation-reactive groups. In formula (i), each R1 is independently a hydrocarbon group having 1 to 8 carbon atoms. In formula (ii), each R2 is independently a hydrocarbon group having 1 to 8 carbon atoms.
    Type: Application
    Filed: November 22, 2019
    Publication date: January 27, 2022
    Applicant: JNC CORPORATION
    Inventors: Hironori IKENO, Kazuya SUWA, Keisuke NISHIZAWA, Ayaka KIYA, Kiichi KAWABATA
  • Publication number: 20220006012
    Abstract: A polycyclic aromatic compound represented by general formula (1) described below and having a bulky substituent in a molecule is used as a material for an organic device, whereby, for example, an organic EL device excellent in quantum efficiency can be provided. In particular, concentration quenching can be suppressed even if a use concentration is comparatively high, and therefore the present art is advantageous in a device production process. In formula (1) described above, R1, R3, R4 to R7, R8 to R11 and R12 to R15 are independently hydrogen, aryl or the like, X1 is —O— or >N—R (R is aryl or the like), Z1 and Z2 are a bulky substituent such as aryl, and at least one hydrogen in the compound represented by formula (1) may be replaced by halogen or deuterium.
    Type: Application
    Filed: November 16, 2018
    Publication date: January 6, 2022
    Applicants: KWANSEI GAKUIN EDUCATIONAL FOUNDATION, JNC CORPORATION
    Inventors: Takuji HATAKEYAMA, Kazushi SHIREN, Yuko YAMAGA, Guofang WANG, Yasuyuki SASADA
  • Patent number: 11211603
    Abstract: A silicon nanoparticle-containing hydrogen polysilsesquioxane sintered product-metal oxide complex comprising a silicon nanoparticle-containing hydrogen polysilsesquioxane sintered product and a metal oxide, wherein the silicon nanoparticle-containing hydrogen polysilsesquioxane sintered product contains 5 wt % to 95 wt % of silicon nanoparticles having a volume-based mean particle size of more than 10 nm but less than 500 nm, and a hydrogen polysilsesquioxane-derived silicon oxide structure that coats the silicon nanoparticles and is chemically bonded to the surfaces of the silicon nanoparticles. The silicon nanoparticle-containing hydrogen polysilsesquioxane sintered product is represented by the general formula SiOxHy (0.01<x<1.35, 0<y<0.35) and has Si—H bonds. The metal oxide consists of one or more metals selected from titanium, zinc, zirconium, aluminum, and iron.
    Type: Grant
    Filed: January 10, 2018
    Date of Patent: December 28, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Hirotsuna Yamada, Yoshihito Takano, Tetsuro Kizaki, Masakazu Kondo
  • Patent number: 11193066
    Abstract: Provided are a polymerizable compound having at least one monovalent group (A), a polymerizable composition containing the polymerizable compound, a liquid crystal composite prepared from the polymerizable composition, and a liquid crystal device having the polymerizable composition. In monovalent group (A), R1 and R2 are independently hydrogen, halogen or alkyl having 1 to 20 carbons, and in the alkyl, at least one piece of —CH2— may be replaced by —O— or —S—, and at least one piece of —(CH2)2— may be replaced by —CH?CH—, and in the groups, at least one hydrogen may be replaced by halogen.
    Type: Grant
    Filed: May 8, 2017
    Date of Patent: December 7, 2021
    Assignees: JNC CORPORATION, JNC PETROCHEMICAL CORPORATION
    Inventors: Tomohiro Yano, Fumitaka Kondo
  • 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
  • Patent number: 11141686
    Abstract: A hollow cylindrical depth filter formed of fibers of a thermoplastic resin and having a thickness of a filter medium of 5 to 25 millimeters, in which the filter medium has a compression ratio of 0.2 or less when a load of 0.5 MPa is applied thereto, the filter medium has a fiber layer of at least three layers from a fluid inflow side toward an outflow side, porosity of the three layers are adjusted to a specific range, respectively, and intersection points of the fibers forming the filter medium are bonded, a mean interval between the intersection points is 2 to 100 times a mean fiber diameter of the fibers in a length direction, and a ratio of the mean fiber diameter on a surface on an upstream side to the mean fiber diameter on a surface on a downstream side of the filter medium is 0.9 to 1.2.
    Type: Grant
    Filed: July 26, 2017
    Date of Patent: October 12, 2021
    Assignees: JNC Corporation, JNC Filter Co., Ltd.
    Inventors: Kouichi Ozamoto, Kento Nakamura, Isamu Futase, Takumi Kojima
  • Publication number: 20210301087
    Abstract: A cationically polymerizable composition that provides a cured product and having an excellent balance of adhesion to various substrates, particularly, a silver substrate, and excellent handling properties. A cationically polymerizable composition including a double-decker type silsesquioxane compound having at least one alicyclic epoxy group in one molecule (A), a cationically polymerizable compound (B), a compound having a vinyl group and a cationically polymerizable cyclic ether (C), and a chelate-modified epoxy compound (D).
    Type: Application
    Filed: March 29, 2021
    Publication date: September 30, 2021
    Applicant: JNC CORPORATION
    Inventor: Kazuya SUWA
  • Publication number: 20210300847
    Abstract: Provided is a process in which a cyclobutanediol compound having a high cis:trans ratio can be stably obtained. The cyclobutanediol compound having a cis:trans ratio of 1.5:1 to 5000:1 is produced by using at least one compound selected from a group consisting of a cyclobutanedione compound, a cyclobutanketol compound, and a cyclobutanediol compound as a raw material, and performing a catalytic hydrogenation reaction and an isomerization reaction in the cyclobutanediol compound in a solid phase state in the presence of a metal catalyst without adding a solvent.
    Type: Application
    Filed: March 17, 2021
    Publication date: September 30, 2021
    Applicant: JNC CORPORATION
    Inventors: Shinichi Furusato, Toshiyuki KAWANABE, Kaori TSURUOKA, Hironao SAJIKI, Tsuyoshi YAMADA, Kwihwan PARK