Patents by Inventor Hiroshi Okano

Hiroshi Okano 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).

  • Patent number: 11365848
    Abstract: A composite pressure vessel liner suitable for use in a composite pressure vessel for storing high-pressure hydrogen is provided. The composite pressure vessel liner is made of a steel material including: a predetermined chemical composition; and a metallic microstructure in which an area fraction of martensite at a position of ¼ of a wall thickness on an inner side is 30% or more, a total area fraction of martensite and bainite at the position of ¼ of the wall thickness on the inner side is 95% or more, and a total area fraction of martensite and bainite in a wall thickness center part is 95% or more, wherein the composite pressure vessel liner has a wall thickness of 20 mm or more in a longitudinal center part, and a tensile strength of 850 MPa or more in the wall thickness center part.
    Type: Grant
    Filed: August 1, 2017
    Date of Patent: June 21, 2022
    Assignee: JFE STEEL CORPORATION
    Inventors: Hiroshi Okano, Shusaku Takagi
  • Patent number: 11358097
    Abstract: A honeycomb rotor recovery and concentration device recovers carbon dioxide gas from flue gas and the like. A carbon dioxide sorption honeycomb rotor is rotated in a casing that is separately sealed at least into a sorption zone and a desorption zone, and the honeycomb in the sorption zone is brought into contact with a raw material gas containing carbon dioxide in a wet state to sorb carbon dioxide gas. A desorption circulation circuit circulates from an outlet to an inlet of the desorption zone. Water supplied to a heater in the circuit is evaporated to form saturated steam, which is supplied to the desorption zone. In the desorption zone, carbon dioxide gas is desorbed by contact with the saturated steam. The design may make it possible to use low-temperature exhaust heat, and this may achieve reduction in size, high performance and high efficiency at the same time.
    Type: Grant
    Filed: January 28, 2019
    Date of Patent: June 14, 2022
    Assignee: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi Okano
  • Publication number: 20210396354
    Abstract: A high-pressure hydrogen tank includes a metal circular cylinder configured to store high-pressure hydrogen therein, a cap part configured to cover each of opposite end portions of the metal circular cylinder, an outer cylinder surrounding an outer periphery of a circular-cylindrical portion of the metal circular cylinder, and a fastening part configured to fix the cap part to the outer cylinder.
    Type: Application
    Filed: November 11, 2019
    Publication date: December 23, 2021
    Applicant: JFE STEEL CORPORATION
    Inventors: Toshio TAKANO, Hiroshi OKANO, Akihide NAGAO, Nobuyuki ISHIKAWA, Kazuki MATSUBARA
  • Patent number: 11168375
    Abstract: A steel pipe or tube for pressure vessels having excellent quench crack resistance is provided. The steel pipe or tube for pressure vessels comprises: a specific chemical composition; and a metallic microstructure in which an average grain size of prior austenite grains is 500 ?m or less, and an area fraction of microstructures other than ferrite is 50% or more.
    Type: Grant
    Filed: August 8, 2017
    Date of Patent: November 9, 2021
    Assignee: JFE STEEL CORPORATION
    Inventors: Hiroshi Okano, Shusaku Takagi
  • Publication number: 20210270779
    Abstract: A life estimation apparatus for a pressure accumulator estimates the life of the pressure accumulator based on an AE signal for the pressure accumulator. The life estimation apparatus includes: an AE sensor that is provided at the pressure accumulator and detects the AE signal; and an estimation unit that sets a point of time at which the AE sensor detects a damage AE signal that is generated from the pressure accumulator because of damage of a material during use of the pressure accumulator, as a minimum initial flaw generation time point that is a point of time at which a minimum initial flaw of the pressure accumulator that is detected by a non-destructive inspection method is generated in shipping of the pressure accumulator.
    Type: Application
    Filed: June 21, 2019
    Publication date: September 2, 2021
    Inventors: Hiroshi Okano, Akihide Nagao, Nobuyuki Ishikawa, Kazuki Matsubara, Toshio Takano
  • Publication number: 20210270421
    Abstract: A method of manufacturing a pressure accumulator, using an AE signal for the pressure accumulator, includes: a first estimation step of estimating with an AE sensor provided at the pressure accumulator, a range of stress levels at each of which a damage AE signal that is generated from the pressure accumulator because of damage of material of the pressure accumulator is in a predetermined state; and a first design step of designing the pressure accumulator such that a minimum thickness of the pressure accumulator is determined based on the stress level range estimated in the first estimation step.
    Type: Application
    Filed: June 21, 2019
    Publication date: September 2, 2021
    Inventors: Hiroshi Okano, Akihide Nagao, Nobuyuki Ishikawa, Kazuki Matsubara, Toshio Takano
  • Patent number: 11058988
    Abstract: An energy-efficient, space-saving, low-cost, waste-heat-utilizing ventilating air conditioning apparatus uses a honeycomb rotor having a function of adsorbing or absorbing contaminants such as carbon dioxide and VOC gas. The honeycomb rotor is disposed in a rotor rotating device having at least a processing zone and a re-generation desorption zone. Air to be processed is passed through the processing zone to remove contaminants such as carbon dioxide to produce supply air. Water is directly sprayed or dropped into a heat exchanger provided at an entrance of the re-generation desorption zone to evaporate the generated water film by heating. The generated saturated steam is introduced for desorbing carbon dioxide and pollutants, and the stream is discharged the stream outdoors. The ventilating air conditioning apparatus can operate without the energy loss associated with ventilation.
    Type: Grant
    Filed: December 21, 2018
    Date of Patent: July 13, 2021
    Assignee: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi Okano
  • Patent number: 10933371
    Abstract: An energy efficient and durable thermal swing type carbon dioxide recovery and concentration device can be made smaller and use low-temperature heat waste of 100° C. or less. A honeycomb rotor carries adsorption particles having a sorption capacity for carbon dioxide. The rotor is rotated in a sealed casing divided into at least an sorption zone and a desorption zone and is brought into contact with material gas that contains carbon dioxide in a state wherein the honeycombs in the sorption zone are moist so as to adsorb the carbon dioxide while carrying out evaporative cooling of water. Then, the honeycombs that have adsorbed the carbon dioxide are moved to the desorption zone and brought into contact with low pressure vapor so as to desorb high concentration carbon dioxide. Thus, it is possible to continuously recover carbon dioxide at a high recovery rate and high concentration.
    Type: Grant
    Filed: June 7, 2018
    Date of Patent: March 2, 2021
    Assignee: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi Okano
  • Publication number: 20210039036
    Abstract: A CO2 concentration device has an adsorbent body formed from sheet material. Solid adsorbent particles are adhered onto at least a single surface of the sheet material and then the sheet material is wound onto itself or laminated in layers. The adsorbent body is divided into at least into a processing zone and a regeneration zone. CO2 is adsorbed in the processing zone when the processing zone is wet with water and a CO2 containing gas is passed through. The regeneration zone desorbs CO2 when saturated steam is passed through. Condensation heat from the steam condensing causes CO2 desorption. The solid adsorbent particles may be aligned in a linear or a staggered arrangement when the solid adsorbent particles are adhered to the sheet material to follow a gas flow and form gas introduction paths between adjacent layers of the sheet material.
    Type: Application
    Filed: August 2, 2019
    Publication date: February 11, 2021
    Applicant: Seibu-Giken Co., Ltd.
    Inventor: Hiroshi OKANO
  • Publication number: 20200406186
    Abstract: A honeycomb rotor recovery and concentration device recovers carbon dioxide gas from flue gas and the like. A carbon dioxide sorption honeycomb rotor is rotated in a casing that is separately sealed at least into a sorption zone and a desorption zone, and the honeycomb in the sorption zone is brought into contact with a raw material gas containing carbon dioxide in a wet state to sorb carbon dioxide gas. A desorption circulation circuit circulates from an outlet to an inlet of the desorption zone. Water supplied to a heater in the circuit is evaporated to form saturated steam, which is supplied to the desorption zone. In the desorption zone, carbon dioxide gas is desorbed by contact with the saturated steam. The design may make it possible to use low-temperature exhaust heat, and this may achieve reduction in size, high performance and high efficiency at the same time.
    Type: Application
    Filed: January 28, 2019
    Publication date: December 31, 2020
    Applicant: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi OKANO
  • Patent number: 10875674
    Abstract: A push-in mechanism pushes articles into a box that is opened sideways. The push-in mechanism is provided with a box standby part, an article placement part, a push-in plate, a horizontal movement mechanism, and a lifting/lowering mechanism. The box standby part causes the boxes to wait. The article placement part has a placement surface on which the articles are temporarily placed. The push-in plate is installed in a standing state so as to have a pressing surface for pressing the articles toward the box. The horizontal movement mechanism causes the push-in plate to reciprocate horizontally above the placement surface so that the push-in plate moves toward the box or moves away from the box. The lifting/lowering mechanism moves the push-in plate so as to change a separation distance in the height direction between a lower edge of the pressing surface and the placement surface.
    Type: Grant
    Filed: October 9, 2015
    Date of Patent: December 29, 2020
    Assignee: ISHIDA CO., LTD.
    Inventors: Yuji Yokota, Atsushi Takahashi, Takeshi Noguchi, Tatsuya Iwasa, Tatsuya Arimatsu, Hiroshi Okano
  • Patent number: 10837660
    Abstract: A ventilating air conditioning apparatus has energy efficiency without energy loss associated with ventilation, has high space, saves space, and is low cost. The ventilating air conditioning apparatus has a honeycomb rotor having a function of adsorbing or absorbing contaminants such as carbon dioxide. The honeycomb rotor is disposed in a rotor rotating device having at least a process zone and a desorption regeneration zone. The processed air is passed through the process zone to remove contaminants such as carbon dioxide and the air is supplied. Saturated steam is introduced into the regeneration desorption zone to desorb contaminants such as carbon dioxide and is discharged to outdoors.
    Type: Grant
    Filed: August 1, 2018
    Date of Patent: November 17, 2020
    Assignee: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi Okano
  • Patent number: 10697036
    Abstract: Steel material for composite pressure vessel liners that, when used as raw material for manufacturing a composite pressure vessel liner, yields a liner having sufficient strength and a high fatigue limit and enables the manufacture of an inexpensive composite pressure vessel is provided. Steel material for composite pressure vessel liners comprises: a chemical composition containing, in mass %, C: 0.10% to 0.60%, Si: 0.01% to 2.0%, Mn: 0.1% to 5.0%, P: 0.0005% to 0.060%, S: 0.0001% to 0.010%, N: 0.0001% to 0.010%, and Al: 0.01% to 0.06%, with a balance being Fe and incidental impurities; and a metallic microstructure in which a mean grain size of prior austenite grains is 20 ?m or less, and a total area ratio of martensite and lower bainite is 90% or more.
    Type: Grant
    Filed: March 7, 2016
    Date of Patent: June 30, 2020
    Assignee: JFE STEEL CORPORATION
    Inventors: Shusaku Takagi, Akihide Nagao, Mitsuo Kimura, Hiroshi Okano
  • Publication number: 20200001233
    Abstract: An energy efficient and durable thermal swing type carbon dioxide recovery and concentration device can be made smaller and use low-temperature heat waste of 100° C. or less. A honeycomb rotor carries adsorption particles having a sorption capacity for carbon dioxide. The rotor is rotated in a sealed casing divided into at least an sorption zone and a desorption zone and is brought into contact with material gas that contains carbon dioxide in a state wherein the honeycombs in the sorption zone are moist so as to adsorb the carbon dioxide while carrying out evaporative cooling of water. Then, the honeycombs that have adsorbed the carbon dioxide are moved to the desorption zone and brought into contact with low pressure vapor so as to desorb high concentration carbon dioxide. Thus, it is possible to continuously recover carbon dioxide at a high recovery rate and high concentration.
    Type: Application
    Filed: June 7, 2018
    Publication date: January 2, 2020
    Applicant: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi OKANO
  • Patent number: 10472108
    Abstract: Provided is a highly reliable box-opening device being capable of suppressing failures of a box-opening action regardless of a size of a cardboard box sheet. The box-opening device unfolds a sheet in which first and second side surfaces and third and fourth side surfaces overlap, and forms a square-tube-shaped cardboard box. The box-opening device may have a suction disk to grasp the first side surface, a main arm having suction disks to grasp the fourth side surface and changing a posture while grasping the fourth side surface, and a control part to control a movement of the main arm so that an initial action, in which a gap is formed between the first and second side surfaces and the third and fourth side surfaces, and a main action that follows the initial action, are executed as an action of unfolding the sheet.
    Type: Grant
    Filed: December 7, 2016
    Date of Patent: November 12, 2019
    Assignee: ISHIDA CO., LTD.
    Inventors: Tatsuya Iwasa, Atsushi Takahashi, Yuji Yokota, Takeshi Noguchi, Tatsuya Arimatsu, Hiroshi Okano
  • Patent number: 10406475
    Abstract: A honeycomb rotor recovering and concentrating apparatus recovers a gas such as carbon dioxide from flue gases and the like and may be capable of utilizing low-temperature waste heat 100° C. or less. The proposed method involves sorbing carbon dioxide while vaporizing and cooling by contacting a water-insoluble carbon dioxide sorbing material (solid amines, etc.) having an acidic gas sorptive capacity with a mixed gas containing carbon dioxide in a wet state. Warm water is brought into contact with the water-insoluble carbon dioxide sorbing material sorbed with carbon dioxide to desorb high concentration of carbon dioxide. The warm water is separated from the water-insoluble carbon dioxide sorbent material desorbed from carbon dioxide. Then the apparatus is returned from the separation step to the sorption step. Thereby, it is possible to drastically increase the recovery rate and recovery concentration of acidic gas (carbon dioxide) continuously.
    Type: Grant
    Filed: October 10, 2017
    Date of Patent: September 10, 2019
    Assignee: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi Okano
  • Patent number: 10396347
    Abstract: A positive electrode for an air battery that can remarkably improve the battery performance is provided by uniformly dispersing fine Nb (Nb oxide) therein. An air battery using the positive electrode as well as a method of manufacturing the positive electrode is also provided. A positive electrode for an air battery includes an expanded graphite sheet containing expanded graphite and Nb dispersed within the sheet. It is desirable that the Nb be contained in a weight proportion of from 5 ppm to 50000 ppm with respect to the expanded graphite.
    Type: Grant
    Filed: December 4, 2015
    Date of Patent: August 27, 2019
    Assignees: NATIONAL INSTITUTE OF TECHNOLOGY, TOYO TANSO CO., LTD.
    Inventors: Hiroshi Okano, Tomofumi Kurosaki, Takurou Tsuruoka, Toshihiro Hosokawa, Nobuya Misaki, Tetsuya Yuki
  • Publication number: 20190211414
    Abstract: A steel pipe or tube for pressure vessels having excellent quench crack resistance is provided. The steel pipe or tube for pressure vessels comprises: a specific chemical composition; and a metallic microstructure in which an average grain size of prior austenite grains is 500 ?m or less, and an area fraction of microstructures other than ferrite is 50% or more.
    Type: Application
    Filed: August 8, 2017
    Publication date: July 11, 2019
    Applicant: JFE STEEL CORPORATION
    Inventors: Hiroshi OKANO, Shusaku TAKAGI
  • Publication number: 20190193019
    Abstract: An energy-efficient, space-saving, low-cost, waste-heat-utilizing ventilating air conditioning apparatus uses a honeycomb rotor having a function of adsorbing or absorbing contaminants such as carbon dioxide and VOC gas. The honeycomb rotor is disposed in a rotor rotating device having at least a processing zone and a re-generation desorption zone. Air to be processed is passed through the processing zone to remove contaminants such as carbon dioxide to produce supply air. Water is directly sprayed or dropped into a heat exchanger provided at an entrance of the re-generation desorption zone to evaporate the generated water film by heating. The generated saturated steam is introduced for desorbing carbon dioxide and pollutants, and the stream is discharged the stream outdoors. The ventilating air conditioning apparatus can operate without the energy loss associated with ventilation.
    Type: Application
    Filed: December 21, 2018
    Publication date: June 27, 2019
    Applicant: SEIBU GIKEN CO., LTD.
    Inventor: Hiroshi OKANO
  • Publication number: 20190162364
    Abstract: A composite pressure vessel liner suitable for use in a composite pressure vessel for storing high-pressure hydrogen is provided. The composite pressure vessel liner is made of a steel material including: a predetermined chemical composition; and a metallic microstructure in which an area fraction of martensite at a position of ¼ of a wall thickness on an inner side is 30% or more, a total area fraction of martensite and bainite at the position of ¼ of the wall thickness on the inner side is 95% or more, and a total area fraction of martensite and bainite in a wall thickness center part is 95% or more, wherein the composite pressure vessel liner has a wall thickness of 20 mm or more in a longitudinal center part, and a tensile strength of 850 MPa or more in the wall thickness center part.
    Type: Application
    Filed: August 1, 2017
    Publication date: May 30, 2019
    Applicant: JFE STEEL CORPORATION
    Inventors: Hiroshi OKANO, Shusaku TAKAGI