Patents Assigned to JX Nippon Oil & Energy Corporation
  • Patent number: 10550351
    Abstract: The present invention provides a refrigerating machine oil comprising at least one oxygen-containing oil having a carbon/oxygen molar ratio of 2.5 or more and 5.8 or less as a base oil, and the refrigerating machine oil being used with a trifluoroethylene refrigerant.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: February 4, 2020
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, AGC INC.
    Inventors: Hitoshi Takahashi, Tsutomu Takahashi, Akira Tada, Souichirou Konno
  • Patent number: 10408984
    Abstract: An optical phase difference component includes: a transparent base with a concave-convex pattern; gaps defined between convex portions of the concave-convex pattern; and a closing layer provided on the concave-convex pattern to connect the convex portions of the concave-convex pattern and to close the gaps. The phase difference property of the optical phase difference component is not reduced, even when the optical phase difference component is joined to another component with adhesive or when load is applied to the optical phase difference component.
    Type: Grant
    Filed: March 27, 2017
    Date of Patent: September 10, 2019
    Assignee: JX NIPPON OIL AND ENERGY CORPORATION
    Inventors: Maki Fukuda, Hironao Tanaka, Suzushi Nishimura
  • Patent number: 10273394
    Abstract: A working fluid composition for a refrigerating machine of the invention comprises a refrigerant comprising difluoromethane and an unsaturated fluorinated hydrocarbon wherein a mass of the difluoromethane/the unsaturated fluorinated hydrocarbon is 95/5 to 10/90, and a refrigerating machine oil comprising at least one base oil selected from among polyol esters with a carbon/oxygen molar ratio of 3.2 to 5.8 and polyvinyl ethers with a carbon/oxygen molar ratio of 3.2 to 5.8.
    Type: Grant
    Filed: October 25, 2012
    Date of Patent: April 30, 2019
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Takeshi Okido, Masanori Saito, Kuniko Adegawa
  • Patent number: 10240215
    Abstract: An object of the present invention is to provide a method for microbioiogically producing astaxanthin of high concentration at low cost while suppressing production of canthaxanthin. Specifically, the present invention relates to a method for producing carotenoids including astaxanthin comprising culturing a bacterium that concurrently produces astaxanthin and canthaxanthin in a medium containing biotin, wherein a ratio of concentration of produced canthaxanthin to concentration of produced astaxanthin in a culture product after the end of culture in the medium is lower than that in a culture product alter the end of culture in a biotin-free medium.
    Type: Grant
    Filed: October 14, 2016
    Date of Patent: March 26, 2019
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Kazuaki Hirasawa, Hiroshi Satoh, Hisashi Yoneda, Tetsuhisa Yata, Mitsutoshi Azuma
  • Patent number: 10227541
    Abstract: A lubricating oil composition for transmissions is provided which improves fuel saving properties and has excellent metal fatigue life and heat resistance. The composition contains 50 to 97 percent by mass of (A) a mineral base oil having a 100° C. kinematic viscosity of 1.5 mm2/s or higher and 3.5 mm2/s or lower, a pour point a ?25° C. or lower, a viscosity index of 105 or greater, a % CP of 85 or greater, a % CN of 2 or greater and 20 or less and a % CA of 3 or less; 3 to 10 percent by mass of (B) a monoester-based base oil having a 100° C. kinematic viscosity of 2 mm2/s or higher and 10 mm2/s or lower; and 150 to 400 ppm by mass as phosphorus of (C) a specific sulfur-containing phosphite ester. The composition has a 100° C. kinematic viscosity of 2.5 mm2/s or higher and 4.0 mm2/s or lower.
    Type: Grant
    Filed: April 7, 2015
    Date of Patent: March 12, 2019
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Kohei Masuda, Hitoshi Komatsubara, Hajime Nakao
  • Patent number: 10214671
    Abstract: The working fluid composition for a refrigerating machine of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant. The refrigerating machine oil of the invention is characterized by comprising an ester of a polyhydric alcohol and a fatty acid with a content of a C5-C9 branched fatty acid of 50-100% by mole, and by being used together with a fluoropropene refrigerant and/or trifluoroiodomethane refrigerant.
    Type: Grant
    Filed: March 18, 2016
    Date of Patent: February 26, 2019
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Yuji Shimomura, Katsuya Takigawa
  • Patent number: 10208408
    Abstract: A method for manufacturing ultrafine fibers having an average diameter of less than 1 ?m is implemented by an apparatus including a feeder and a drawing chamber in communication with the feeder via an orifice having a pressure difference. The method includes introducing a multifilament to the drawing chamber under the condition that the ratio of the cross-section of the multifilament to the cross-section of the orifice rectifier is 50% or less, and irradiating the discharged multifilament such that the center of the multifilament melted thereby is located 1 to 15 mm apart vertically below the orifice outlet to melt the leading portion of the multifilament and cause the multifilament to swing at a maximum angle of 5 to 80 degrees to the central orifice axis within a conical space, such that the melted leading portion of the multifilament is drawn by an air stream generated by the pressure difference.
    Type: Grant
    Filed: March 6, 2015
    Date of Patent: February 19, 2019
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Hiroaki Konishi, Atsuo Omaru, Taku Ichibayashi
  • Patent number: 10087376
    Abstract: A catalyst is provided for production of monocyclic aromatic hydrocarbons having a carbon number of 6 to 8 from feedstock in which a 10 vol % distillation temperature is 140° C. or higher and a 90 vol % distillation temperature is 380° C. or lower. The catalyst contains crystalline aluminosilicate including large-pore zeolite having a 12-membered ring structure, and intermediate-pore zeolite having a 10-membered ring structure.
    Type: Grant
    Filed: July 16, 2015
    Date of Patent: October 2, 2018
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shinichiro Yanagawa, Masahide Kobayashi, Kazuaki Hayasaka
  • Patent number: 10087389
    Abstract: A lubricating oil composition containing a lubricating base oil and on the basis of the total mass of the composition, (A) a boron-containing ashless dispersant in an amount of 100 to 500 ppm by mass as boron, (B) a phosphorous additive in an amount of 300 to 800 ppm by mass as phosphorus, (C) an amide- and/or imide-based friction modifier in an amount of 1 to 4 percent by mass, and (D) an alkali metal- and/or alkaline earth metal-based detergent in an amount of 100 to 300 ppm by mass as metal, and having a 40° C. kinematic viscosity of 30 mm2/s or lower is provided. The lubricating oil composition, which has a low viscosity to improve fuel efficiency, also has superior anti-wear, anti-seizure, and anti-shattering properties, even when the composition is degraded by oxidation or by the elution of compounds from sealing materials after long term use.
    Type: Grant
    Filed: September 16, 2014
    Date of Patent: October 2, 2018
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Shingo Matsuki, Go Tatsumi, Hironori Isoh, Isao Kurihara, Masaaki Itou
  • Patent number: 10081157
    Abstract: A fiber-reinforced composite material is provided which is capable of achieving CAI, ILSS, and interlaminar fracture toughness concurrently at high levels, in particular, capable of achieving high CAI. The composite material is composed of a laminated body including a plurality of reinforcing-fiber-containing layers and a resin layer in each interlaminar region between adjacent reinforcing-fiber-containing layers, wherein the resin layer is a layer wherein a cured product of a compound having in its molecule a benzoxazine ring of formula (1) and epoxy resin is impregnated with at least polyamide 12 powder: (R1: C1-C12 chain alkyl group or the like; H is bonded to at least one of the carbon atoms of the aromatic ring at ortho- or para-position with respect to C to which the oxygen atom is bonded).
    Type: Grant
    Filed: February 12, 2013
    Date of Patent: September 25, 2018
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, SUBARU CORPORATION
    Inventors: Yoshihiro Fukuda, Takayuki Matsumoto, Masaki Minami, Naoyuki Sekine, Masanori Nakajima
  • Patent number: 10076773
    Abstract: The method for cleaning a reactor of the present invention comprises passing a solvent through a wax-fraction hydrocracking apparatus which is charged with a catalyst and to which supply of a wax fraction is stopped, wherein the solvent comprising at least one oil selected from a group consisting of hydrocarbon and vegetable oils, and having a sulfur content of less than 5 ppm and being in a liquid state at 15° C.
    Type: Grant
    Filed: August 12, 2011
    Date of Patent: September 18, 2018
    Assignees: JAPAN OIL, GAS AND METALS NATIONAL CORPORATION, INPEX CORPORATION, JX NIPPON OIL & ENERGY CORPORATION, JAPAN PETROLEUM EXPLORATION CO., LTD., COSMO OIL CO., LTD., NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD.
    Inventors: Shinya Takahashi, Kazuhiko Tasaka, Yuichi Tanaka, Marie Iwama
  • Patent number: 10053647
    Abstract: The present invention provides a working fluid composition for a refrigerating machine, comprising a refrigerating machine oil that comprises an ester of a polyhydric alcohol and a fatty acid, an epoxy compound, and a phosphorus compound, and a fluoropropene refrigerant, wherein the polyhydric alcohol constituting the ester comprises pentaerythritol and dipentaerythritol, the fatty acid constituting the ester comprises at least one selected from fatty acids having 4 to 9 carbon atoms, and the epoxy compound and the phosphorus compound satisfy a condition represented by the following formula (1). [ Formula ? ? 1 ] ? 0.10 ? ( N E M E · W E ) ( N P M P · W P ) ? 1.
    Type: Grant
    Filed: December 22, 2014
    Date of Patent: August 21, 2018
    Assignees: Denso Corporation, Kabushki Kaisha Toyota Jidoshokki, JX Nippon Oil & Energy Corporation
    Inventors: Masataka Muto, Hajime Mukawa, Takekazu Kano, Genki Hayashi, Kazuki Yamamoto, Takahiro Hoshida, Hitoshi Takahashi, Ken Sawada, Akira Tada, Souichirou Konno
  • Patent number: 9988583
    Abstract: A method for producing a highly aromatic base oil of the present invention includes a step of hydrorefining a clarified oil to obtain a highly aromatic base oil having an aromatic content of 50% by mass or more determined by a column chromatography analysis method. The step of hydrorefining a clarified oil is preferably performed under conditions of a hydrogen pressure of 5.0 to 20.0 MPa, a temperature of 280 to 400° C., a hydrogen oil ratio of 300 to 750 NL/L, and a space velocity of 0.3 to 2.0 h?1. According to the present invention, a highly aromatic base oil used for rubber processing, asphalt reclamation and the like, and a novel method for producing a highly aromatic base oil can be provided.
    Type: Grant
    Filed: September 9, 2016
    Date of Patent: June 5, 2018
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Yoshiyuki Morishima, Takashi Ito
  • Patent number: 9988585
    Abstract: A method for producing a base oil for lubricant oils comprising: a first step of hydrocracking a stock oil having a content percentage of a heavy matter of 80% by mass or more so that a crack per mass of the heavy matter is 20 to 85% by mass, to obtain a hydrocracked oil comprising the heavy matter and a hydrocracked product thereof, a second step of fractionating the hydrocracked oil into a base oil fraction comprising the hydrocracked product and a heavy fraction comprising the heavy matter and being heavier than the base oil fraction, respectively, a third step of isomerization dewaxing the base oil fraction from the fractionation in the second step to obtain a dewaxed oil, wherein the heavy fraction from the fractionation in the second step is returned to the first step as a part of the stock oil.
    Type: Grant
    Filed: November 5, 2013
    Date of Patent: June 5, 2018
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Kazuaki Hayasaka, Yoshiyuki Nagayasu, Marie Iwama, Mayumi Yokoi, Tomohisa Hirano
  • Patent number: 9920256
    Abstract: There is provided a hydrocarbon distillation separation apparatus for fractionally distilling hydrocarbon compounds discharged from a Fisher-Tropsch synthesis reactor synthesizing hydrocarbon compounds, comprising a heavy hydrocarbon fractionator configured to fractionally distil liquid heavy components of the hydrocarbon compounds discharged from the reactor into a first middle distillate and a wax fraction, a light hydrocarbon fractionator configured to fractionally distil gaseous light components of the hydrocarbon compounds discharged from the reactor into a second middle distillate and a light gas fraction, a light hydrocarbon separator configured to separate hydrocarbon compounds equivalent to naphtha from the light gas fraction; and a mixing section configured to mix the first and second middle distillates, and the hydrocarbon compounds equivalent to naphtha separated from the light gas fraction by the light hydrocarbon separator.
    Type: Grant
    Filed: February 6, 2015
    Date of Patent: March 20, 2018
    Assignees: JAPAN OIL, GAS AND METALS NATIONAL CORPORATION, INPEX CORPORATION, JX NIPPON OIL & ENERGY CORPORATION, JAPAN PETROLEUM EXPLORATION CO., LTD., COSMO OIL CO., LTD., NIPPON STEEL ENGINEERING CO., LTD.
    Inventors: Yuichi Tanaka, Yasumasa Morita, Kenichi Kawazuishi
  • Patent number: 9909083
    Abstract: The disclosure provides (i) a lubricating oil composition including a base oil (A) with a kinematic viscosity at 100° C. of 8.2-12.6 mm2/s and a saturated hydrocarbon content of 90% by mass or more, a metallic detergent (B) and a zinc dithiophosphate (C), wherein a content of the metallic detergent (B) is 2.5 mmol or more as a soap content concentration per 100 g of the composition, a phosphorous content is 200-1000 mass ppm, and a base number is 7.5 mg KOH/g or more, and (ii) a lubricating oil composition including the base oil (A), the metallic detergent (B), the zinc dithiophosphate (C) and an amine-based antioxidant (E), wherein a content of the amine-based antioxidant (E) is 0.3% by mass or more in terms of total content of the composition, a base number is 6.5 mg KOH/g or more, and a phosphorous content is 200-1000 mass ppm.
    Type: Grant
    Filed: December 17, 2013
    Date of Patent: March 6, 2018
    Assignee: JX Nippon Oil & Energy Corporation
    Inventor: Shigeki Takeshima
  • Patent number: 9895861
    Abstract: A unidirectionally stretchable substrate which has good shape retaining characteristics and whose weight can be easily reduced is provided. Unidirectionally 1 stretchable substrate has meshed material 2 that has a plurality of elastomeric linear members 3 arranged orthogonal to each other, the linear members having stretchability and thermoplasticity; and non-woven fabric 4 that is formed of a plurality of filaments 5, the filaments being made of a thermoplastic resin. Filaments 5 of non-woven fabric 4 have been drafted in one direction and are linearly arranged only in that direction. Non-woven fabric 4 is bonded to meshed material 2 such that direction y in which filaments 5 of the non-woven fabric 4 are arranged is parallel with one of directions y in which linear members 3 of meshed material 2 extend.
    Type: Grant
    Filed: March 18, 2011
    Date of Patent: February 20, 2018
    Assignee: JX Nippon Oil & Energy Corporation
    Inventors: Atsushi Miyagawa, Hideo Kumehara, Shigehisa Nakazawa
  • Patent number: 9884998
    Abstract: A synthesis gas production apparatus (reformer) to be used for a synthesis gas production step in a GTL (gas-to-liquid) process is prevented from being contaminated by metal components. A method of suppressing metal contamination of a synthesis gas production apparatus operating for a GTL process that includes a synthesis gas production step of producing synthesis gas by causing natural gas and gas containing steam and/or carbon dioxide to react with each other for reforming in a synthesis gas production apparatus in which, at the time of separating and collecting a carbon dioxide contained in the synthesis gas produced in the synthesis gas production step and recycling the separated and collected carbon dioxide as source gas for the reforming reaction in the synthesis gas production step, a nickel concentration in the recycled carbon dioxide is not higher than 0.05 ppmv.
    Type: Grant
    Filed: June 1, 2016
    Date of Patent: February 6, 2018
    Assignees: JAPAN OIL, GAS AND METALS NATIONAL CORPORATION, INPEX CORPORATION, JX NIPPON OIL & ENERGY CORPORATION, JAPAN PETROLEUM EXPLORATION CO., LTD., COSMO OIL CO., LTD., NIPPON STEEL & SUMIKIN ENGINEERING CO., LTD., CHIYODA CORPORATION
    Inventors: Shuhei Wakamatsu, Fuyuki Yagi, Tomoyuki Mikuriya, Kenichi Kawazuishi
  • Patent number: 9873851
    Abstract: Provided are both a grease composition for an electric power steering device and an electric power steering device. The grease composition can keep a sufficiently low coefficient of friction in a sliding area between a steel and a resin over a long period, is less susceptible to being removed from the sliding area, does not cause break down of an oil film, and thus can minimize the occurrence of stick-slips. A grease composition for an electric power steering device, containing a synthetic hydrocarbon oil which exhibits a density of 0.75 to 0.95 g/cm3 at 15° C., a saturated aliphatic amide compound, boron nitride, a glycerin fatty acid partial ester, and a metal soap-based thickener; and an electric power steering device using the grease composition.
    Type: Grant
    Filed: August 29, 2013
    Date of Patent: January 23, 2018
    Assignees: JX NIPPON OIL & ENERGY CORPORATION, HITACHI AUTOMOTIVE SYSTEMS STEERING, LTD.
    Inventors: Takashi Arai, Kazumi Sakai, Yuji Shitara, Satoshi Taniuchi, Kohtaro Shiino, Tatsuro Suzuki
  • Patent number: 9868912
    Abstract: A method for producing a lubricating base oil, comprising: performing a 13C-NMR analysis regarding an oil to be treated and selecting the oil based on a value for dividing an integrated value of a peak for a tertiary carbon atom by an integrated value of all peaks at 0 to 50 ppm, a value for dividing an integrated value of a peak for a carbon atom constituting a main chain by the integrated value of all peaks at 0 to 50 ppm, and a value for dividing an integrated value of a peak for a branched CH3 bonded to a fifth or the following carbon atom from a terminal carbon atom in the main chain by an integrated value of all peaks at 10 to 25 ppm, and obtaining a dewaxed oil by isomerization dewaxing of the oil selected in the first step, is disclosed.
    Type: Grant
    Filed: March 26, 2014
    Date of Patent: January 16, 2018
    Assignee: JX NIPPON OIL & ENERGY CORPORATION
    Inventors: Kazuaki Hayasaka, Yasushi Wada, Marie Iwama, Koshi Takahama