Patents by Inventor Noriaki Izumi

Noriaki Izumi 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: 8562747
    Abstract: A method and system for hydrolyzing cellulose and/or hemicellulose contained in a biomass into monosaccharides and oligosaccharides by using high-temperature and high-pressure water in a subcritical condition is provided. In hydrolyzing cellulose or hemicellulose into saccharides by using high-temperature and high-pressure water in a subcritical condition, a large amount of slurry is cooled into a condition below the subcritical condition by subjecting the slurry contained in a pressure vessel under a high-temperature and high-pressure condition to flash evaporation in a pressure vessel charged with a slurry of a cellulosic biomass and heated halfway. It is possible to prevent saccharides from degrading into organic acids and to save energy by recovery of thermal energy. The cellulosic biomass is charged into a water-permeable vessel and then the water-permeable vessel is encapsulated into the pressure vessel together with water.
    Type: Grant
    Filed: April 20, 2012
    Date of Patent: October 22, 2013
    Assignee: Kawasaki Plant Systems Kabushiki Kaisha
    Inventors: Takeshi Nagahama, Noriaki Izumi
  • Publication number: 20130171709
    Abstract: A method for producing ethanol by alcohol fermentation of a saccharide obtained by hydrolyzing cellulosic biomass in a supercritical or subcritical state, wherein excessive decomposition and caramelization of the saccharide are inhibited to prevent a reduction in yield of the saccharide, and flash steam is effectively used. The method for producing ethanol of the present invention is characterized in that in a saccharification/decomposition step, a slurry after saccharification/decomposition, is flash-evaporated in a first flash tank so as to have a temperature of 150° C. to 200° C.; the slurry after saccharification/decomposition, which is taken from the first flash tank, is further flash-evaporated in a second flash tank so as to have a temperature of 100° C. to 120° C.; and first flash steam generated from the first flash tank is used as a heat source in the saccharification/decomposition step or a distillation step.
    Type: Application
    Filed: September 27, 2011
    Publication date: July 4, 2013
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hiromasa Kusuda, Noriaki Izumi, Hironori Tajiri, Shoji Tsujita, Takashi Nishino
  • Publication number: 20130125877
    Abstract: The hydrolytic saccharification method and hydrolytic saccharification apparatus according to the present invention use a hydraulic cylinder-type pressurized reactor as a reactor for causing cellulosic biomass to be in a supercritical or subcritical state, and use a hydraulic cylinder-type steam compressor as a source of superheated steam, such that the reactor and the compressor are operated in conjunction with each other. Surplus hydraulic pressure that is generated when hydrolysis of the cellulosic biomass is completed is recovered as compression power of the hydraulic cylinder-type steam compressor. Moreover, flash steam generated from slurry containing a hydrolysate is supplied to the hydraulic cylinder-type steam compressor for cyclic use of the flash steam.
    Type: Application
    Filed: September 27, 2011
    Publication date: May 23, 2013
    Applicant: KAWASAKI JUKOGYO KABUSHIKI KAISHA
    Inventors: Hiromasa Kusuda, Noriaki Izumi, Hironori Tajiri, Shoji Tsujita, Takeshi Nishino, Kunihiko Tanaka
  • Publication number: 20120260912
    Abstract: A method and system for hydrolyzing cellulose and/or hemicellulose contained in a biomass into monosaccharides and oligosaccharides by using high-temperature and high-pressure water in a subcritical condition is provided. In hydrolyzing cellulose or hemicellulose into saccharides by using high-temperature and high-pressure water in a subcritical condition, a large amount of slurry is cooled into a condition below the subcritical condition by subjecting the slurry contained in a pressure vessel under a high-temperature and high-pressure condition to flash evaporation in a pressure vessel charged with a slurry of a cellulosic biomass and heated halfway. It is possible to prevent saccharides from degrading into organic acids and to save energy by recovery of thermal energy. The cellulosic biomass is charged into a water-permeable vessel and then the water-permeable vessel is encapsulated into the pressure vessel together with water.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 18, 2012
    Inventors: Takeshi Nagahama, Noriaki Izumi
  • Publication number: 20120255543
    Abstract: A method and system for hydrolyzing cellulose and/or hemicellulose contained in a biomass into monosaccharides and oligosaccharides by using high-temperature and high-pressure water in a subcritical condition is provided. In hydrolyzing cellulose or hemicellulose into saccharides by using high-temperature and high-pressure water in a subcritical condition, a large amount of slurry is cooled into a condition below the subcritical condition by subjecting the slurry contained in a pressure vessel under a high-temperature and high-pressure condition to flash evaporation in a pressure vessel charged with a slurry of a cellulosic biomass and heated halfway. It is possible to prevent saccharides from degrading into organic acids and to save energy by recovery of thermal energy. The cellulosic biomass is charged into a water-permeable vessel and then the water-permeable vessel is encapsulated into the pressure vessel together with water.
    Type: Application
    Filed: April 20, 2012
    Publication date: October 11, 2012
    Inventors: Takeshi Nagahama, Noriaki Izumi
  • Publication number: 20100175690
    Abstract: A method and system for hydrolyzing cellulose and/or hemicellulose contained in a biomass into monosaccharides and oligosaccharides by using high-temperature and high-pressure water in a subcritical condition is provided. In hydrolyzing cellulose or hemicellulose into saccharides by using high-temperature and high-pressure water in a subcritical condition, a large amount of slurry is cooled into a condition below the subcritical condition by subjecting the slurry contained in a pressure vessel under a high-temperature and high-pressure condition to flash evaporation in a pressure vessel charged with a slurry of a cellulosic biomass and heated halfway. It is possible to prevent saccharides from degrading into organic acids and to save energy by recovery of thermal energy. The cellulosic biomass is charged into a water-permeable vessel and then the water-permeable vessel is encapsulated into the pressure vessel together with water.
    Type: Application
    Filed: October 23, 2007
    Publication date: July 15, 2010
    Applicant: KAWASAKI PLANT SYSTEMS KABUSHIKI KAISHA
    Inventors: Takeshi Nagahama, Noriaki Izumi
  • Publication number: 20070035745
    Abstract: A user interface unit (30) that specifies a copy area including plural objects from copy source information displayed on a display unit (20) at copy timing, and that specifies a past area from past target information at past timing, a semantic analysis performing unit (42) that performs a semantic analysis of each of the plural objects, a paste target selecting unit (72) that selects paste targets which match with results of the semantic analysis, and a pasting unit (73) that pastes the plural objects to the paste targets.
    Type: Application
    Filed: December 7, 2004
    Publication date: February 15, 2007
    Applicant: National Institute Of Advanced Industrial Science And Technology
    Inventors: Noriaki Izumi, Akira Takagi