Patents by Inventor Masafumi Noujima

Masafumi Noujima 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).

  • Publication number: 20210130935
    Abstract: The purpose of the present invention is to provide an alloy product which has both of high corrosion resistance enough to withstand severe corrosive/high-temperature environments and mechanical properties equivalent to or better than those of stainless steel, and which can be produced at lower cost than a Ni-based alloy. The Cr—Fe—Ni-based alloy product of the present invention is a product produced using a Cr—Fe—Ni-based alloy containing Cr as a largest-content component, wherein the product has such a microstructure that a dual-phase structure having a ferrite phase and an austenite phase coexisting therein serves as a matrix phase and an L12-type Ni-based intermetallic compound phase is dispersed and precipitated in the austenite phase.
    Type: Application
    Filed: November 9, 2018
    Publication date: May 6, 2021
    Applicant: HITACHI, LTD.
    Inventor: Masafumi NOUJIMA
  • Patent number: 10718038
    Abstract: An object of the invention is to provide: a two-phase alloy as a metal material that can be preferably utilized under circumstances of a temperature range and a high corrosion as in an oil well, the two-phase alloy having a high corrosion resistance and good mechanical properties that are equivalent or more than those of conventional ones, and saving a cost; a product of the two-phase alloy; and a method for producing the product. There is provided a two-phase alloy containing Cr as a major component and including two phases of an austenite phase and a ferrite phase in a mixed state. The alloy has a chemical composition containing: 34-70 mass % of Cr; 17-45 mass % of Ni; 10-35 mass % of Fe; 0.1-2 mass % of Mn; 0.1-1 mass % of Si; and impurities. The total content of the Ni and the Fe is 30-65 mass %.
    Type: Grant
    Filed: September 28, 2015
    Date of Patent: July 21, 2020
    Assignee: HITACHI, LTD.
    Inventors: Masafumi Noujima, Yasuhisa Aono, Naoya Okizaki, Yusaku Maruno, Tomonori Kimura, Makoto Ogata
  • Publication number: 20190100825
    Abstract: There is provided a Cr-based two-phase alloy including two phases of a ferrite phase and an austenite phase that are mixed with each other. A chemical composition of the Cr-based two-phase alloy consists of a main component, an auxiliary component, impurities, a first optional auxiliary component, and a second optional auxiliary component. The main component consists of 33-61 mass % Cr, 18-40 mass % Ni and 10-33 mass % Fe, and a total content of the Ni and the Fe is 37-65 mass %. The auxiliary component consists of 0.1-2 mass % Mn, 0.1-1 mass % Si, 0.005-0.05 mass % Al, and 0.02-0.3 mass % Sn. The impurities include 0.04 mass % or less of P, 0.01 mass % or less of S, 0.03 mass % or less of C, 0.04 mass % or less of N, and 0.05 mass % or less of O.
    Type: Application
    Filed: January 19, 2017
    Publication date: April 4, 2019
    Applicant: HITACHI, LTD.
    Inventors: Tomonori KIMURA, Yasuhisa AONO, Makoto OGATA, Naoya TOKOO, Yasuo KONDO, Masafumi NOUJIMA
  • Patent number: 10240225
    Abstract: Disclosed herein is a technique to reduce the residual stress of a steel material while improving the mechanical property and the corrosion resistance of the material. A steel material is provided that includes a plurality of ferrite crystal grains, and a laminar iron-rich phase formed at unidirectionally occurring grain boundaries of all grain boundaries of the ferrite crystal grains. A material processing method is provided that includes: heating a steel material that contains a plurality of ferrite crystal grains; applying a magnetic field to a heated portion while heating the steel material; applying an electric field to the heated portion in a direction that crosses the direction of the applied magnetic field while heating the steel material; and measuring a displacement occurring in the steel material under the magnetic field and the electric field.
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: March 26, 2019
    Assignee: HITACHI, LTD.
    Inventors: Matahiro Komuro, Masafumi Noujima, Naoya Okizaki
  • Publication number: 20190071754
    Abstract: An object of the invention is to provide a two-phase alloy which contains inexpensive Cr as a main component, and which is superior in strength properties including corrosion resistance and toughness, and in abrasion resistance to conventional ones under a high corrosion circumstance such as in an oil well. The invention is a Cr based two-phase alloy including two phases of a ferrite phase and an austenite phase in a mixed state, in which a chemical composition of the Cr based two-phase alloy consists of a major component, an accessory component, impurities, a first optional accessory component, and a second optional accessory component, and the major component consists of 33% by mass or more and 65% by mass or less of Cr, 18% by mass or more and 40% by mass or less of Ni, and 10% by mass or more and 33% by mass or less of Fe.
    Type: Application
    Filed: January 30, 2017
    Publication date: March 7, 2019
    Applicant: HITACHI, LTD.
    Inventors: Tomonori KIMURA, Masafumi NOUJIMA, Yasuhisa AONO, Makoto OGATA, Naoya TOKOO
  • Publication number: 20170292175
    Abstract: An object of the invention is to provide: a two-phase alloy as a metal material that can be preferably utilized under circumstances of a temperature range and a high corrosion as in an oil well, the two-phase alloy having a high corrosion resistance and good mechanical properties that are equivalent or more than those of conventional ones, and saving a cost; a product of the two-phase alloy; and a method for producing the product. There is provided a two-phase alloy containing Cr as a major component and including two phases of an austenite phase and a ferrite phase in a mixed state. The alloy has a chemical composition containing: 34-70 mass % of Cr; 17-45 mass % of Ni; 10-35 mass % of Fe; 0.1-2 mass % of Mn; 0.1-1 mass % of Si; and impurities. The total content of the Ni and the Fe is 30-65 mass %.
    Type: Application
    Filed: September 28, 2015
    Publication date: October 12, 2017
    Applicant: HITACHI, LTD.
    Inventors: Masafumi NOUJIMA, Yasuhisa AONO, Naoya OKIZAKI, Yusaku MARUNO, Tomonori KIMURA, Makoto OGATA
  • Publication number: 20160083821
    Abstract: Disclosed herein is a technique to reduce the residual stress of a steel material while improving the mechanical property and the corrosion resistance of the material. A steel material is provided that includes a plurality of ferrite crystal grains, and a laminar iron-rich phase formed at unidirectionally occurring grain boundaries of all grain boundaries of the ferrite crystal grains. A material processing method is provided that includes: heating a steel material that contains a plurality of ferrite crystal grains; applying a magnetic field to a heated portion while heating the steel material; applying an electric field to the heated portion in a direction that crosses the direction of the applied magnetic field while heating the steel material; and measuring a displacement occurring in the steel material under the magnetic field and the electric field.
    Type: Application
    Filed: September 17, 2015
    Publication date: March 24, 2016
    Applicant: HITACHI, LTD.
    Inventors: Matahiro KOMURO, Masafumi NOUJIMA, Naoya OKIZAKI
  • Patent number: 8307863
    Abstract: Recovery of dehydrogenation product must be done separately from supply of hydrogen fuel. However, there is a problem that it takes much time when dehydrogenation product recovery and fuel filling are done separately. A fuel filling/waste solution recovery apparatus includes measuring means to measure a volume of supplied fuel and a volume of recovered waste solution by measuring flow rates of solutions passing through a fuel filling nozzle and a recovery nozzle or piping, and a display which shows the volume of supplied fuel and the volume of recovered waste solution which are measured by the measuring means.
    Type: Grant
    Filed: August 20, 2008
    Date of Patent: November 13, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Masafumi Noujima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto, Shinji Yamada
  • Publication number: 20110005473
    Abstract: A hydrogen supply device which generates hydrogen from hydrogen storing material which chemically stores hydrogen by a catalyst, wherein said device comprises valves on the fuel supply port and the exhaust port, and a valve controller which controls timing to opening and close the valves. Fuel supply pressure is 2 to 20 atm. Hydrogen generation pressure is 5 to 300 atm. Exhaust pressure is atmospheric pressure to 0.01 atm.
    Type: Application
    Filed: September 10, 2010
    Publication date: January 13, 2011
    Inventors: Takao Ishikawa, Hiroshi Kanemoto, Masafumi Noujima, Takeyuki Itabashi
  • Publication number: 20100266929
    Abstract: An object of the invention is to provide a catalyst of high activity having a dehydrogenation function or hydrogenation function, to provide a fuel cell with a high output density, and further to provide a hydrogen storage/supply device, with which hydrogen is stored or supplied in a high efficient manner. In order to achieve the above object, a porous oxide film of a metal oxide is formed on a hydrogen separation membrane surface of a catalyst having a dehydrogenation function or hydrogenation function and the hydrogen separation membrane is arranged so as to be partially exposed to at the interface with the porous oxide film. In doing so, hydrogen generated on the catalyst can quickly diffuse into the hydrogen separation membrane thereby efficiently releasing the hydrogen to outside of the reaction system. Eventually, the reaction efficiency can be improved.
    Type: Application
    Filed: December 20, 2006
    Publication date: October 21, 2010
    Inventors: Hiroshi Kanemoto, Takao Ishikawa, Masafumi Noujima, Takeyuki Itabashi
  • Publication number: 20090165890
    Abstract: A fuel supply and collection system comprising: a delivery vehicle having a supply-fuel tank, a collection-fuel tank, a remaining supply-fuel quantity sensor for detecting a remaining fuel quantity of the supply-fuel tank, a remaining collection-fuel quantity sensor for detecting a remaining fuel quantity of the collection-fuel tank, and a display unit; a plurality of fuel stations having a supply-fuel tank, a collection-fuel tank, a remaining supply-fuel quantity sensor for detecting a remaining fuel quantity of the supply-fuel tank, and a remaining collection-fuel quantity sensor for detecting a remaining fuel quantity of the collection-fuel tank; and a central information processing center having an information processing apparatus; wherein, the remaining supply-fuel and collection-fuel quantities of the delivery vehicle and the remaining supply-fuel and collection-fuel quantities of each fuel station are estimated in the information processing apparatus from remaining supply-fuel quantity data and rema
    Type: Application
    Filed: December 23, 2008
    Publication date: July 2, 2009
    Inventors: Akiyoshi Komura, Kenichi Souma, Takao Ishikawa, Masafumi Noujima
  • Patent number: 7527660
    Abstract: A hydrogen fuel manufacturing system capable of efficiently producing each hydrogen fuel in accordance with a demanded quantity is disclosed. The system includes a hydrogen manufacturing apparatus for manufacturing hydrogen, more than two hydrogen fuel manufacturing apparatuses for manufacturing hydrogen fuels by letting the hydrogen produced by the hydrogen manufacturing apparatus change into a fuel-use form, wherein the fuel form to be manufactured by the hydrogen fuel manufacturing apparatuses is set to have more than two kinds. Additionally the system has a hydrogen fuel production volume receiver device for receipt of the information as to a hydrogen fuel production volume, thereby controlling the production volume of the hydrogen fuel being manufactured by the hydrogen fuel manufacturing apparatus, based on the hydrogen fuel production volume information as received by the hydrogen fuel production volume receiver device.
    Type: Grant
    Filed: February 15, 2005
    Date of Patent: May 5, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Masafumi Noujima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto
  • Publication number: 20090089075
    Abstract: The invention provides a fuel environmental evaluation system for evaluating a fuel environment characteristic in an energy distribution process comprising a means for inputting an amount of raw material supplied to equipment for each process of energy distribution, an amount of product produced from each equipment for each process, and a type and an amount of utility supplied to the equipment for each process when producing the product; a storage means for storing input data; a storage means for storing a basic unit for an amount of environmentally affecting matter emission per unit amount of an environmental emission matter in the raw material, utility and product; an environmental emission calculation section for calculating an amount of environmentally affecting matter emission from data of amounts of the raw material, utility and product, and the basic unit for the amount of environmentally affecting matter emission; and a means for storing a calculation result from the environmental emission calculation
    Type: Application
    Filed: August 19, 2008
    Publication date: April 2, 2009
    Inventors: MASAFUMI NOUJIMA, AKIYOSHI KOMURA, TAKAO ISHIKAWA
  • Publication number: 20090037123
    Abstract: The present invention provides an energy supply system evaluation device evaluating a lifecycle of energy conversion processes to be implemented in a pre-determined order by an energy supply system, an energy supply system evaluation method and an energy supply system evaluation program. According to the present invention, it can reduce a work load on an evaluator when the evaluator performs many-sided evaluations on energy supply systems by using a variety of analytical methods, and enable the evaluator to gain actualized output of the evaluation results desired thereof.
    Type: Application
    Filed: August 1, 2008
    Publication date: February 5, 2009
    Inventors: Masafumi Noujima, Akiyoshi Komura, Yoji Uchiyama
  • Publication number: 20090025824
    Abstract: Recovery of dehydrogenation product must be done separately from supply of hydrogen fuel. However, there is a problem that it takes much time when dehydrogenation product recovery and fuel filling are done separately. A fuel filling/waste solution recovery apparatus includes measuring means to measure a volume of supplied fuel and a volume of recovered waste solution by measuring flow rates of solutions passing through a fuel filling nozzle and a recovery nozzle or piping, and a display which shows the volume of supplied fuel and the volume of recovered waste solution which are measured by the measuring means.
    Type: Application
    Filed: August 20, 2008
    Publication date: January 29, 2009
    Inventors: Masafumi Noujima, Takeyuki Itabashi, Takao Ishikawa, Hiroshi Kanemoto, Shinji Yamada
  • Patent number: 7398193
    Abstract: A wall-thickness thinning rate at a not-measured position is estimated using information having a small number of measured points. Simulation of behavior of fluid flowing inside a pipe line is performed based on wall-thickness data of pips and three-dimensional layout data of the pipe line including the pips using a computer, and simulated wall-thickness thinned data of the pipes composing the pipe line is calculated from change of the simulated behavior of fluid.
    Type: Grant
    Filed: June 13, 2006
    Date of Patent: July 8, 2008
    Assignee: Hitachi-GE Nuclear Energy, Ltd.
    Inventors: Kenji Araki, Masatoshi Takada, Masakazu Hisatsune, Satoru Aoike, Kenji Utaka, Masafumi Noujima, Chikara Takeuchi
  • Publication number: 20060229855
    Abstract: A wall-thickness thinning rate at a not-measured position is estimated using information having a small number of measured points. Simulation of behavior of fluid flowing inside a pipe line is performed based on wall-thickness data of pips and three-dimensional layout data of the pipe line including the pips using a computer, and simulated wall-thickness thinned data of the pipes composing the pipe line is calculated from change of the simulated behavior of fluid.
    Type: Application
    Filed: June 13, 2006
    Publication date: October 12, 2006
    Inventors: Kenji Araki, Masatoshi Takada, Masakazu Hisatsune, Satoru Aoike, Kenji Utaka, Masafumi Noujima, Chikara Takeuchi
  • Publication number: 20060204799
    Abstract: A hydrogen supply device which generates hydrogen from hydrogen storing material which chemically stores hydrogen by a catalyst, wherein said device comprises valves on the fuel supply port and the exhaust port, and a valve controller which controls timing to opening and close the valves Fuel supply pressure is 2 to 20 atm. Hydrogen generation pressure is 5 to 300 atm. Exhaust pressure is atmospheric pressure to 0.01 atm.
    Type: Application
    Filed: February 16, 2006
    Publication date: September 14, 2006
    Inventors: Takao Ishikawa, Hiroshi Kanemoto, Masafumi Noujima, Takeyuki Itabashi
  • Patent number: 7089165
    Abstract: A wall-thickness thinning rate at a not-measured position is estimated using information having a small number of measured points. Simulation of behavior of fluid flowing inside a pipe line is performed based on wall-thickness data of pips and three-dimensional layout data of the pipe line including the pips using a computer, and simulated wall-thickness thinned data of the pipes composing the pipe line is calculated from change of the simulated behavior of fluid.
    Type: Grant
    Filed: March 2, 2005
    Date of Patent: August 8, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Araki, Masatoshi Takada, Masakazu Hisatsune, Satoru Aoike, Kenji Utaka, Masafumi Noujima, Chikara Takeuchi
  • Patent number: 7035777
    Abstract: A wall-thickness thinning rate at a not-measured position is estimated using information having a small number of measured points. Simulation of behavior of fluid flowing inside a pipe line is performed based on wall-thickness data of pipes and three-dimensional layout data of the pipe line including the pipes using a computer, and simulated wall-thickness thinned data of the pipes composing the pipe line is calculated from change of the simulated behavior of fluid.
    Type: Grant
    Filed: March 22, 2001
    Date of Patent: April 25, 2006
    Assignee: Hitachi, Ltd.
    Inventors: Kenji Araki, Masatoshi Takada, Masakazu Hisatsune, Satoru Aoike, Kenji Utaka, Masafumi Noujima, Chikara Takeuchi