Patents by Inventor Akitoshi Fujisawa

Akitoshi Fujisawa 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: 9914089
    Abstract: An absorption method includes: a step for preparing a minute passage; a main circulation step for circulating, in the minute passage, a gas as a first fluid containing a component to be absorbed and an absorbing liquid as a second fluid so that the component to be absorbed is absorbed from the gas into the absorbing liquid; and a sub-circulation step for circulating, while the gas and the absorbing liquid are circulated in the minute passage, a third fluid in the minute passage in order to raise the pressure inside the minute passage.
    Type: Grant
    Filed: June 20, 2014
    Date of Patent: March 13, 2018
    Assignee: Kobe Steel, Ltd.
    Inventors: Akira Matsuoka, Koji Noishiki, Akitoshi Fujisawa
  • Publication number: 20170328519
    Abstract: [Object] To enable a gas supply system to be easily transported and to increase a degree of freedom when the gas supply system is installed. [Solution] A hydrogen station includes: a filling facility for filling a tank-mounted device with a gas; and a gas supply system for supplying the gas to the filling facility. The gas supply system includes: a compressor for compressing the gas; a compressor accommodating body for accommodating the compressor; a refrigerator for cooling the gas flowed into the filling facility or the gas just before being flowed into the filling facility, the refrigerator including an evaporation part, an expansion part, and a compression part; and a cooler accommodating body for accommodating the evaporation part, the expansion part, and the compression part. The compressor accommodating body and the cooler accommodating body are detachable from each other.
    Type: Application
    Filed: September 16, 2015
    Publication date: November 16, 2017
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Takashi OKUNO, Hitoshi TAKAGI, Kenji NAGURA, Daisuke WADA, Takuro UBA, Akitoshi FUJISAWA
  • Patent number: 9776862
    Abstract: Provided is a hydrogen production apparatus enabling reduction of energy needed for separation and collection of CO2 in the hydrogen production. The hydrogen production apparatus includes a reformer, a heating device heating the reformer, a transformer, a hydrogen separation device separating and taking out hydrogen from transformed gas, a CO2 separation device separating and taking out CO2 from off-gas from which hydrogen was separated by the hydrogen separation device, a heat collecting device collecting heat of the reformed gas, heat of the transformed gas, and waste heat from the heating device, and a heat medium supply device supplying the heat medium having absorbed heat collected by the heat collecting device to the CO2 separation device. The absorption liquid having absorbed CO2 in off-gas is heated by the heat medium heated with collected heat, thereby releasing CO2.
    Type: Grant
    Filed: February 24, 2016
    Date of Patent: October 3, 2017
    Assignee: Kobe Steel, Ltd.
    Inventors: Akitoshi Fujisawa, Akira Matsuoka, Hiroo Hangai, Koji Noishiki
  • Publication number: 20170209827
    Abstract: A gas transfer processing method includes: transferring gas to an inside or an outside of an absorption liquid within respective processing flow paths while circulating the absorption liquid through the respective processing flow paths; after the gas transferring, separating a mixed fluid including the absorption liquid discharged from outlets of the respective processing flow paths and gas by respective separation headers into the absorption liquid and the gas; and circulating the absorption liquid separated in the separating by returning the separated absorption liquid from the separation headers to inlets of the respective processing flow paths through respective recirculation lines, thus introducing the absorption liquid to the respective processing flow paths. The process promotes transfer of a target component to an absorption liquid, while enabling execution of a component transfer process by compact equipment.
    Type: Application
    Filed: July 17, 2015
    Publication date: July 27, 2017
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Akitoshi FUJISAWA, Koji NOISHIKI, Akira MATSUOKA
  • Publication number: 20160348840
    Abstract: A gas supply system—includes a compressor unit, an accumulator unit, a pre-cooling system and a housing. In the gas supply system, the compressor unit is vertically arranged and the pre-cooling system is arranged above the accumulator unit in the housing. The compressor unit and the accumulator unit are covered by one rectangular parallelepiped housing.
    Type: Application
    Filed: January 29, 2015
    Publication date: December 1, 2016
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Kenji NAGURA, Tetsuya KAKIUCHI, Takashi OKUNO, Koji NOISHIKI, Akitoshi FUJISAWA, Shinichi MIURA
  • Patent number: 9468898
    Abstract: A reactor and a reaction method are provided with which temperature changes due to a large amount of reaction heat generated immediately after confluence of raw material fluids can be suppressed. A reactor (2) includes reaction passages (22) and temperature control passages (42). Each reaction passage (22) includes first and second supply passage parts (24, 26), a confluence part (30), and a reaction passage part (28) connected in this order from upstream to downstream. Each temperature control passage (42) includes: first temperature control passage parts (44) extending at least along a particular range of the corresponding reaction passage part (28); and a second temperature control passage part (46) connected thereto, which is fewer in number than the first temperature control passage parts (44). Each second temperature control passage part (46) has a cross section area larger than that of each first temperature control passage part (44).
    Type: Grant
    Filed: April 29, 2015
    Date of Patent: October 18, 2016
    Assignee: Kobe Steel, Ltd.
    Inventors: Akira Matsuoka, Akitoshi Fujisawa, Koji Noishiki
  • Publication number: 20160251217
    Abstract: Provided is a hydrogen production apparatus enabling reduction of energy needed for separation and collection of CO2 in the hydrogen production. The hydrogen production apparatus includes a reformer, a heating device heating the reformer, a transformer, a hydrogen separation device separating and taking out hydrogen from transformed gas, a CO2 separation device separating and taking out CO2 from off-gas from which hydrogen was separated by the hydrogen separation device, a heat collecting device collecting heat of the reformed gas, heat of the transformed gas, and waste heat from the heating device, and a heat medium supply device supplying the heat medium having absorbed heat collected by the heat collecting device to the CO2 separation device. The absorption liquid having absorbed CO2 in off-gas is heated by the heat medium heated with collected heat, thereby releasing CO2.
    Type: Application
    Filed: February 24, 2016
    Publication date: September 1, 2016
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Akitoshi FUJISAWA, Akira MATSUOKA, Hiroo HANGAI, Koji NOISHIKI
  • Publication number: 20160121263
    Abstract: A separation method including: preparing a separation device including an absorption processor absorbing into an absorption liquid a target component in a fluid to be processed, by an absorption microduct and a cooling medium microduct positioned for heat exchange; causing the fluid to be processed and the absorption liquid to pass through the absorption microduct in mutual contact, thus causing the target component to be absorbed into the absorption liquid from the fluid to be processed; cooling the fluid to be processed and the absorption liquid by flowing a cooling medium through the cooling medium microduct, and causing heat exchange between the fluid to be processed and absorption liquid flowing through the absorption microduct and the cooling medium; and separating, into the fluid to be processed and the absorption liquid, the mixed fluid of the fluid to be processed after the target component has been absorbed by the absorption liquid.
    Type: Application
    Filed: June 25, 2014
    Publication date: May 5, 2016
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Akitoshi FUJISAWA, Koji NOISHIKI, Akira MATSUOKA
  • Publication number: 20160114282
    Abstract: A separation method including: an absorption process absorbing a desired component in a starting material gas into an absorption liquid by bringing the starting material gas and the absorption liquid into contact with each other inside an absorption unit; a regeneration process releasing the desired component from the absorption liquid and regenerating the absorption liquid by heating the absorption liquid, which absorbed the desired component in the absorption process, in a regeneration unit; a post-regeneration separation process separating the mixed fluid, which is the gas of the desired component released in the regeneration process and the regenerated absorption liquid, into the desired component gas and the absorption liquid; and a compression process compressing the starting material gas prior to the absorption process and the regeneration process.
    Type: Application
    Filed: July 14, 2014
    Publication date: April 28, 2016
    Applicant: Kabushiki Kaisha Kobe-Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Akira MATSUOKA, Akitoshi FUJISAWA, Koji NOISHIKI
  • Publication number: 20160107115
    Abstract: An absorption method includes: a step for preparing a minute passage; a main circulation step for circulating, in the minute passage, a gas as a first fluid containing a component to be absorbed and an absorbing liquid as a second fluid so that the component to be absorbed is absorbed from the gas into the absorbing liquid; and a sub-circulation step for circulating, while the gas and the absorbing liquid are circulated in the minute passage, a third fluid in the minute passage in order to raise the pressure inside the minute passage.
    Type: Application
    Filed: June 20, 2014
    Publication date: April 21, 2016
    Applicant: KABUSHIKI KAISHA KOBE SEIKO SHO (KOBE STEEL, LTD.)
    Inventors: Akira MATSUOKA, Koji NOISHIKI, Akitoshi FUJISAWA
  • Publication number: 20150314258
    Abstract: A reactor and a reaction method are provided with which temperature changes due to a large amount of reaction heat generated immediately after confluence of raw material fluids can be suppressed. A reactor (2) includes reaction passages (22) and temperature control passages (42). Each reaction passage (22) includes first and second supply passage parts (24, 26), a confluence part (30), and a reaction passage part (28) connected in this order from upstream to downstream. Each temperature control passage (42) includes: first temperature control passage parts (44) extending at least along a particular range of the corresponding reaction passage part (28); and a second temperature control passage part (46) connected thereto, which is fewer in number than the first temperature control passage parts (44). Each second temperature control passage part (46) has a cross section area larger than that of each first temperature control passage part (44).
    Type: Application
    Filed: April 29, 2015
    Publication date: November 5, 2015
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Akira MATSUOKA, Akitoshi FUJISAWA, Koji NOISHIKI
  • Patent number: 8372375
    Abstract: For recovering hydrogen with a high recovery from a reformed gas and contributing to downsizing and cost reduction of facilities, a high-purity hydrogen E is obtained by reforming a reformable raw material A through a reforming unit 1 to yield a hydrogen-rich reformed gas B, compressing the hydrogen-rich reformed gas B with a compressor 2, allowing the compressed gas to pass through a PSA unit 3 to remove unnecessary gases other than carbon monoxide by adsorption, and allowing the resulting gas to pass through a carbon monoxide remover 4 packed with a carbon monoxide adsorbent supporting a copper halide to remove carbon monoxide by adsorption.
    Type: Grant
    Filed: April 25, 2006
    Date of Patent: February 12, 2013
    Assignee: Kobe Steel, Ltd.
    Inventors: Noboru Nakao, Takeshi Yamashita, Akitoshi Fujisawa, Keita Yura
  • Patent number: 7892328
    Abstract: A PSA apparatus for high-purity hydrogen gas production is provided which can recover high purity hydrogen gas at a high recovery rate from a reformed gas (hydrogen-containing gas) produced by a reforming process, for example an autothermal reforming process, and containing, as impurity components, at least CO, CO2, N2 and/or Ar, and can contribute to reducing the equipment size, hence reducing the equipment cost. The PSA apparatus for high-purity hydrogen gas B production by removing CO, CO2 and N2 by adsorption from a hydrogen containing gas A, comprises an adsorption tower 1; and an adsorbent bed 2 in the adsorption tower, wherein, on the occasion of regeneration of the adsorbent bed 2, a purge gas C is passed through in the direction opposite to the direction of passage of the hydrogen-containing gas A.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: February 22, 2011
    Assignee: Kobe Steel, Ltd.
    Inventors: Noboru Nakao, Shinichi Miura, Takeshi Yamashita, Akitoshi Fujisawa
  • Patent number: 7587815
    Abstract: A resin-coated metal plate used as a protective plate in drilling a printed wiring board has a metal plate and a resin film including a thermoplastic resin coated on at least one surface of the metal plate. A melting peak temperature of the thermoplastic resin is in a range of 60-120° C., and in a TMA curve, a temperature difference exhibited by the thermoplastic resin is within a range of 5° C. to 30° C. in a period while penetration of the probe is changed from 10% to 100% of the resin thickness in a temperature range of 20° C. to 200° C.
    Type: Grant
    Filed: July 25, 2007
    Date of Patent: September 15, 2009
    Assignee: Kabushiki Kaisha Kobe Seiko Sho
    Inventors: Eiichiro Yoshikawa, Akitoshi Fujisawa
  • Publication number: 20090223371
    Abstract: A PSA apparatus for high-purity hydrogen gas production is provided which can recover high-purity hydrogen gas at a high recovery rate from a reformed gas (hydrogen-containing gas) produced by a reforming process, for example an autothermal reforming process, and containing, as impurity components, at least CO, CO2, N2 and/or Ar, and can contribute to reducing the equipment size, hence reducing the equipment cost.
    Type: Application
    Filed: January 30, 2009
    Publication date: September 10, 2009
    Inventors: Noboru Nakao, Shinichi Miura, Takeshi Yamashita, Akitoshi Fujisawa
  • Publication number: 20090117030
    Abstract: For recovering hydrogen with a high recovery from a reformed gas and contributing to downsizing and cost reduction of facilities, a high-purity hydrogen E is obtained by reforming a reformable raw material A through a reforming unit 1 to yield a hydrogen-rich reformed gas B, compressing the hydrogen-rich reformed gas B with a compressor 2, allowing the compressed gas to pass through a PSA unit 3 to remove unnecessary gases other than carbon monoxide by adsorption, and allowing the resulting gas to pass through a carbon monoxide remover 4 packed with a carbon monoxide adsorbent supporting a copper halide to remove carbon monoxide by adsorption.
    Type: Application
    Filed: April 25, 2006
    Publication date: May 7, 2009
    Applicant: Kabushiki Kaisha Kobe Seiko Sho (Kobe Steel, Ltd.)
    Inventors: Noboru Nakao, Takeshi Yamashita, Akitoshi Fujisawa, Keita Yura
  • Publication number: 20080058230
    Abstract: A resin-coated metal plate used for drilling a printed wiring board is provided, by which a drilled hole excellent in smoothness of an inner wall can be provided at an accurate position with high quality and high efficiency under a high-density drilling condition in which drill entering speed is high, production volume is large, and a distance between adjacent drilled holes (pitch) is short, and breakability is reduced with respect to a drill; and a method of drilling the printed wiring board using the metal plate is provided. A resin-coated metal plate used as a protective back plate in drilling a printed wiring board has a metal plate, and a resin film including a thermoplastic resin coated on at least one surface of the metal plate; wherein in the thermoplastic resin, melting peak temperature is in a range of 60° C. to 120° C., and in a TMA curve, temperature difference is within a range of 5° C. to 30° C.
    Type: Application
    Filed: July 25, 2007
    Publication date: March 6, 2008
    Inventors: Eiichiro Yoshikawa, Akitoshi Fujisawa