Patents by Inventor Atsushi Minamino

Atsushi Minamino 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: 20140308712
    Abstract: A method produces a concentrated aqueous sugar solution using a cellulose-containing biomass as a raw material, including: (1) hydrolyzing a cellulose-containing biomass to produce an aqueous sugar solution; (2) filtering the aqueous sugar solution obtained in (1) through a microfiltration membrane and/or an ultrafiltration membrane, and recovering an aqueous sugar solution from the permeate side; and (3) filtering the aqueous sugar solution obtained in (2) through a nanofiltration membrane and/or a reverse osmosis membrane, recovering a permeate from the permeate side and recovering a concentrated aqueous sugar solution from the feed side; wherein at least a part of the permeate from the nanofiltration membrane and/or the reverse osmosis membrane is used as a washing liquid in (1) and/or (2).
    Type: Application
    Filed: December 7, 2011
    Publication date: October 16, 2014
    Applicant: Toray Industries, Inc.
    Inventors: Masayuki Hanakawa, Satoko Kanamori, Hiroyuki Kurihara, Norihiro Takeuchi, Atsushi Minamino
  • Publication number: 20140287461
    Abstract: A method of producing a sugar liquid using a cellulose-containing biomass as a raw material includes (a) hydrolyzing a cellulose-containing biomass to produce an aqueous sugar solution and (b) filtering the obtained aqueous sugar solution through a reverse osmosis membrane to collect a purified sugar liquid from a feed side, while removing fermentation-inhibiting substances from a permeate side.
    Type: Application
    Filed: May 28, 2014
    Publication date: September 25, 2014
    Applicant: Toray Industries, Inc.
    Inventors: Hiroyuki Kurihara, Atsushi Minamino, Masateru Ito, Hideki Sawai, Masayuki Hanakawa, Shin-ichi Minegishi, Katsushige Yamada
  • Patent number: 8765405
    Abstract: A sugar liquid containing only very small amounts of fermentation-inhibiting substances is produced by a method for producing a sugar liquid using a cellulose-containing biomass as a raw material, the method including: (1) a step of hydrolyzing a cellulose-containing biomass to produce an aqueous sugar solution; and (2) a step of filtering the obtained aqueous sugar solution through a nanofiltration membrane and/or reverse osmosis membrane to collect a purified sugar liquid from the feed side, while removing fermentation-inhibiting substances from the permeate side.
    Type: Grant
    Filed: December 8, 2009
    Date of Patent: July 1, 2014
    Assignee: Toray Industries, Inc.
    Inventors: Hiroyuki Kurihara, Atsushi Minamino, Masateru Ito, Hideki Sawai, Masayuki Hanakawa, Shin-ichi Minegishi, Katsushige Yamada
  • Publication number: 20140178937
    Abstract: A method of producing a sugar liquid with a cellulose-containing biomass as a raw material includes (1) hydrolyzing a cellulose-containing biomass to produce an aqueous sugar solution, and (2) filtering the aqueous sugar solution obtain in (1) through an ultrafiltration membrane having a molecular weight cutoff of 600 to 2,000 to remove a fermentation inhibitor(s) into the permeate side and collect a sugar liquid from the feed side.
    Type: Application
    Filed: July 27, 2012
    Publication date: June 26, 2014
    Applicant: Toray Industries, Inc.
    Inventors: Atsushi Minamino, Hiroyuki Kurihara, Katsushige Yamada
  • Publication number: 20140158642
    Abstract: A method of producing a filter aid includes: (A) obtaining a pretreated biomass by pulverization treatment and/or thermochemical treatment of a cellulose-containing biomass; (B) treating the pretreated biomass obtained in (A) with cellulase to obtain a cellulase-treated product; and (C) obtaining a solid content of the cellulase-treated product of (B).
    Type: Application
    Filed: July 27, 2012
    Publication date: June 12, 2014
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Atsushi Minamino, Hiroyuki Kurihara, Katsushige Yamada, Junpei Kishimoto
  • Publication number: 20140017729
    Abstract: A method of producing a sugar liquid includes concentrating an aqueous cellulose-derived sugar solution with a nanofiltration membrane and/or reverse osmosis membrane, wherein the concentration is carried out after adding a water-soluble anionic polymer to the aqueous cellulose-derived sugar solution to remove a fermentation inhibitor(s) into a permeate side of the nanofiltration membrane and/or reverse osmosis membrane.
    Type: Application
    Filed: March 28, 2012
    Publication date: January 16, 2014
    Applicant: Toray Industries, Inc.
    Inventors: Atsushi Minamino, Hiroyuki Kurihara, Katsushige Yamada
  • Publication number: 20130337552
    Abstract: There is provided an apparatus for treating a biomass feedstock at a high temperature, including: a cooling means for cooling a biomass liquid treated at a high temperature; an enzymatic saccharification tank for subjecting a cooled treated liquid to saccharification with an enzyme; a solid-liquid separation apparatus for removing water-slightly soluble fermentation inhibitory substances contained in the saccharide solution taken out from the enzymatic saccharification tank and a foreign substance removing unit provided with a microfiltlation (MF) membrane 113a; a dilution tank, disposed downstream of the foreign substance removing unit, for adding water thereto so as to dilute the saccharide solution; a water separation unit, provided with a reverse osmosis (RO) membrane, for removing water from the diluted saccharide solution to obtain concentrated saccharide solution; and a fermentation tank for fermenting the concentrated saccharide solution.
    Type: Application
    Filed: March 23, 2012
    Publication date: December 19, 2013
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Akira Nishimura, Takahiro Yamauchi, Kentaro Ogura, Haruka Nishimoto, Hiroyuki Kurihara, Atsushi Minamino, Hideo Suzuki, Gaku Kondo
  • Publication number: 20130312738
    Abstract: A method of producing a sugar liquid, includes filtering a cellulose-derived sugar liquid through one or more separation membranes selected from the group consisting of ultrafiltration membranes, nanofiltration membranes and reverse osmosis membranes, and washing the separation membrane(s) after filtration with warm water at a temperature of not less than 50° C.
    Type: Application
    Filed: February 17, 2012
    Publication date: November 28, 2013
    Applicant: Toray Industries, Inc.
    Inventors: Junpei Kishimoto, Hiroyuki Kurihara, Atsushi Minamino, Katsushige Yamada
  • Publication number: 20130309761
    Abstract: There is provided an apparatus for treating a biomass feedstock at a high temperature, including a cooling means for cooling a biomass treated liquid at a high temperature; an enzymatic saccharification tank for saccharifying a cooled treated liquid with an enzyme; a solid-liquid separation apparatus for removing water-slightly soluble substances contained in a saccharide solution taken out from the enzymatic saccharification tank and a foreign substance removing unit provided with a microfiltlation (MF) membrane; a dilution tank, disposed downstream of the foreign substance removing unit, for diluting the saccharide solution from which the water-slightly soluble substances are removed by adding water thereto; a water separation unit, provided with a reverse osmosis (RO) membrane, for removing water from the diluted saccharide solution so as to obtain concentrated saccharide solution.
    Type: Application
    Filed: March 23, 2012
    Publication date: November 21, 2013
    Applicants: MITSUBISHI HEAVY INDUSTRIES MECHATRONICS SYSTEMS, LTD., TORAY INDUSTRIES, INC.
    Inventors: Akira Nishimura, Takahiro Yamauchi, Kentaro Ogura, Haruka Nishimoto, Hiroyuki Kurihara, Atsushi Minamino, Hideo Suzuki, Gaku Kondo
  • Publication number: 20130266991
    Abstract: A method produces a concentrated aqueous sugar solution using a cellulose-containing biomass as a raw material, including: (1) hydrolyzing a cellulose-containing biomass to produce an aqueous sugar solution; (2) filtering the aqueous sugar solution obtained in (1) through a microfiltration membrane and/or an ultrafiltration membrane, and recovering an aqueous sugar solution from the permeate side; and (3) filtering the aqueous sugar solution obtained in (2) through a reverse osmosis membrane, recovering a permeate from the permeate side and recovering a concentrated aqueous sugar solution from the feed side; wherein at least a part of the permeate from the reverse osmosis membrane is used as a hydrothermal treatment liquid, biomass-suspending, liquid, enzyme-diluting liquid, acid-diluting liquid and/or alkali-diluting liquid in (1).
    Type: Application
    Filed: December 7, 2011
    Publication date: October 10, 2013
    Applicant: TORAY Industries, Inc.
    Inventors: Satoko Kanamori, Masayuki Hanakawa, Hiroyuki Kurihara, Norihiro Takeuchi, Atsushi Minamino
  • Publication number: 20130203117
    Abstract: A method produces a sugar liquid by repeating a sugar liquid production process including (1) to (3): (1) adding a filamentous fungus-derived cellulase to cellulose to perform primary hydrolysis; (2) adding a fresh filamentous fungus-derived cellulase to the hydrolysate in Step (1) to perform secondary hydrolysis; and (3) subjecting the hydrolysate in Step (2) to solid-liquid separation to obtain a sugar liquid, from which a recovered enzyme is obtained; wherein the recovered enzyme obtained in Step (3) is used for Step (1) of the next and later sugar liquid production processes.
    Type: Application
    Filed: March 14, 2011
    Publication date: August 8, 2013
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hiroyuki Kurihara, Atsushi Minamino, Yuki Yamamoto, Katsushige Yamada
  • Publication number: 20130059345
    Abstract: A method of hydrolysis of cellulose uses a filamentous fungus-derived cellulase as a carbohydrase and includes adding the carbohydrase to cellulose to perform primary hydrolysis and then subjecting the primary hydrolysate to solid-liquid separation into a primary sugar liquid and solids; adding water to the solids and performing secondary hydrolysis, followed by subjecting the secondary hydrolysate to solid-liquid separation into a secondary sugar liquid and a residue; and filtering the primary sugar liquid and/or secondary sugar liquid through an ultrafiltration membrane, and recovering the carbohydrase from the feed side and recovering a sugar solution from the permeate side.
    Type: Application
    Filed: March 14, 2011
    Publication date: March 7, 2013
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hiroyuki Kurihara, Atsushi Minamino, Yuki Yamamoto, Katsushige Yamada
  • Publication number: 20130004994
    Abstract: The invention provides a method that allows fermentation impeding substances that occur during production of a sugar from cellulose-containing biomass to be removed in an aqueous sugar solution production step, and also provides a method for long-term stable production of an aqueous refined sugar solution that is nearly free from fermentation impeding substances.
    Type: Application
    Filed: February 7, 2011
    Publication date: January 3, 2013
    Inventors: Masayuki Hanakawa, Hiroho Hirozawa, Hiroyuki Kurihara, Atsushi Minamino
  • Publication number: 20110250637
    Abstract: A sugar liquid containing only very small amounts of fermentation-inhibiting substances is produced by a method for producing a sugar liquid using a cellulose-containing biomass as a raw material, the method including: (1) a step of hydrolyzing a cellulose-containing biomass to produce an aqueous sugar solution; and (2) a step of filtering the obtained aqueous sugar solution through a nanofiltration membrane and/or reverse osmosis membrane to collect a purified sugar liquid from the feed side, while removing fermentation-inhibiting substances from the permeate side.
    Type: Application
    Filed: December 8, 2009
    Publication date: October 13, 2011
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Hiroyuki Kurihara, Atsushi Minamino, Masateru Ito, Hideki Sawai, Masayuki Hanakawa, Shin-ichi Minegishi, Katsushige Yamada