Patents by Inventor Katsushige Yamada

Katsushige Yamada 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: 20220090148
    Abstract: Efficient production of a carboxylic acid is provided by a method of producing a carboxylic acid, which includes the following steps (A) and (B): (A) filtering a carboxylic acid-containing fermentation broth by passing said fermentation broth through a nanofiltration membrane, to obtain a carboxylic acid-containing filtrate from the permeate side of the membrane; and (B) extracting the carboxylic acid from the carboxylic acid-containing filtrate obtained in the step (A) using an extraction solvent which undergoes phase separation with the filtrate, and collecting a carboxylic acid extract phase-separated from the aqueous phase.
    Type: Application
    Filed: March 24, 2020
    Publication date: March 24, 2022
    Inventors: Daijiro Tsukamoto, Jenji Kawamura, Katsushige Yamada
  • Patent number: 11279960
    Abstract: A method produces xylo-oligosaccharides from a biomass containing xylan and cellulose, which method is convenient and has a high yield of xylo-oligosaccharides because of inhibition of degradation of xylo-oligosaccharides into xylose. In the method of producing xylo-oligosaccharides, a biomass containing xylan and cellulose is hydrolyzed with a cellulase composition having at least activities of xylanase, cellobiohydrolase and ?-glucosidase and substantially free of ?-xylosidase activity during hydrolysis.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 22, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Takuya Kasahara, Chiaki Yamada, Hiroyuki Kurihara, Katsushige Yamada
  • Patent number: 11253818
    Abstract: A method of producing cellulase includes steps (1) to (3): (1) subjecting an aqueous solution of cellulase derived from filamentous fungi to filtration through an ultrafiltration membrane with a molecular weight cut off of 100,000 to 200,000 to obtain a filtrate and concurrently obtain a concentrated enzyme liquid as a retentate; (2) further subjecting the filtrate obtained in step (1) to filtration through a second ultrafiltration membrane with a molecular weight cut off of 5,000 to 50,000 to obtain a second concentrated enzyme liquid as a retentate; and (3) mixing the concentrated enzyme liquid obtained in steps (1) and (2) to obtain cellulase derived from filamentous fungi.
    Type: Grant
    Filed: November 21, 2012
    Date of Patent: February 22, 2022
    Assignee: Toray Industries, Inc.
    Inventors: Hiroyuki Kurihara, Katsushige Yamada
  • Patent number: 11248207
    Abstract: Provided is a method of producing ?-hydromuconic acid, the method including the step of culturing a microorganism belonging to the genus Serratia capable of producing ?-hydromuconic acid.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: February 15, 2022
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kyohei Isobe, Kenji Kawamura, Masateru Ito, Katsushige Yamada
  • Publication number: 20210388410
    Abstract: A mutant strain of Trichoderma reesei has a mutation that eliminates or reduces a function of a polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 8, in which the mutation may be a mutation in which an aspartic acid residue at the 1,790 residue from the N-terminal side in the polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 8 is changed to a residue of an amino acid other than aspartic acid.
    Type: Application
    Filed: October 10, 2019
    Publication date: December 16, 2021
    Inventors: Yusuke KAGAWA, Shingo HIRAMATSU, Katsushige YAMADA
  • Patent number: 11162087
    Abstract: The object of the present invention is to separate and provide a ?-glucosidase gene having the effect of efficiently promoting saccharification in hydrolysis of cellulose-containing biomass from a hardly culturable symbiotic protist community of Coptotermes formosanus, and the present invention specifically relates to ?-glucosidase derived from a protist of the genus Pseudotrichonympha consisting of the amino acid sequence represented by SEQ ID NO: 1.
    Type: Grant
    Filed: August 29, 2018
    Date of Patent: November 2, 2021
    Assignees: RIKEN, TORAY INDUSTRIES, INC.
    Inventors: Masato Otagiri, Shigeharu Moriya, Masahiro Yuki, Moriya Ohkuma, Haruka Saito, Shingo Hiramatsu, Chiaki Yamada, Katsushige Yamada
  • Patent number: 11155848
    Abstract: A method of producing a sugar liquid from cellulose-containing biomass includes step (1) of hydrolyzing cellulose-containing biomass by a filamentous fungus-derived cellulase; and step (2) of filtering a hydrolysate obtained in step (1) through an ultrafiltration membrane to recover the filamentous fungus-derived cellulase as a non-permeate and to obtain a sugar liquid as a permeate, wherein the cellulose-containing biomass is treated with one or more enzymes selected from the group consisting of pectinase, glucoamylase, and lipase at a stage previous to step (1) or in step (1).
    Type: Grant
    Filed: December 26, 2014
    Date of Patent: October 26, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Shigeyuki Funada, Hiroyuki Kurihara, Katsushige Yamada
  • Publication number: 20210324437
    Abstract: A mutant strain of Trichoderma reesei has a mutation that eliminates or reduces a function of a polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 2. A method produces a protein, the method including a step of cultivating the mutant strain.
    Type: Application
    Filed: August 28, 2019
    Publication date: October 21, 2021
    Inventors: Yusuke Kagawa, Shingo Hiramatsu, Katsushige Yamada
  • Publication number: 20210324018
    Abstract: A mutant strain of Trichoderma reesei, the mutant strain having a mutation that eliminates or reduces a function of a polypeptide consisting of the amino acid sequence represented by any of SEQ ID Nos: 4 to 6. A method produces a cellulast, the method including a step of cultivating the mutant strain of Trichoderma reesei, the mutant strain having a mutation that eliminates or reduces a function of a polypeptide consisting of the amino acid sequence represented by any of SEQ ID Nos: 4 to 6.
    Type: Application
    Filed: August 28, 2019
    Publication date: October 21, 2021
    Inventors: Yusuke Kagawa, Haruka Saito, Shingo Hiramatsu, Katsushige Yamada
  • Patent number: 11149001
    Abstract: A method produces ?-caprolactam through adipamide as an intermediate, and characteristically includes a lactamization step of reacting adipamide, formed from a material compound, with hydrogen and ammonia in the presence of a catalyst containing: a metal oxide mainly containing an oxide(s) of one or more metallic elements selected from the group consisting of metallic elements of group 5 and groups 7 to 14 in the 4th to 6th periods of the periodic table; and a metal and/or a metal compound having a hydrogenation ability.
    Type: Grant
    Filed: December 5, 2017
    Date of Patent: October 19, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Daijiro Tsukamoto, Masateru Ito, Katsushige Yamada, Masato Akahira, Daisuke Yamamoto, Koji Yamauchi
  • Patent number: 11124811
    Abstract: A method of producing ?-hydromuconic acid using a metabolic pathway of a microorganism is disclosed. The method of producing ?-hydromuconic acid includes the step of culturing at least one type of microorganism having a capacity to produce ?-hydromuconic acid, selected from the group consisting of microorganisms belonging to the genus Escherichia, microorganisms belonging to the genus Pseudomonas, microorganisms belonging to the genus Hafnia, microorganisms belonging to the genus Bacillus, microorganisms belonging to the genus Cupriavidus, microorganisms belonging to the genus Acinetobacter, microorganisms belonging to the genus Alcaligenes, microorganisms belonging to the genus Delftia, and microorganisms belonging to the genus Shimwellia.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: September 21, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kyohei Isobe, Kenji Kawamura, Masateru Ito, Katsushige Yamada
  • Patent number: 11096395
    Abstract: A food discoloration inhibitor contains, as an effective ingredient, a low molecular weight lignin having a molecular weight peak in a molecular weight range of 4,000 to 9,500 and/or a high molecular weight lignin having a molecular weight peak in a molecular weight range of 10,000 to 40,000, wherein the molecular weight peak is measured at a wavelength of 254 nm by GPC molecular weight analysis using an UV detector.
    Type: Grant
    Filed: October 26, 2017
    Date of Patent: August 24, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Shigeyuki Funada, Hiroyuki Kurihara, Katsushige Yamada
  • Patent number: 11091698
    Abstract: An anti-caking agent for soil includes, as effective ingredients: a lignin having a molecular weight peak, as measured by GPC molecular weight analysis using a UV detector at a wavelength of 254 nm, within the molecular weight range of 10,000 to 40,000; and a diatomaceous earth. A method of improving the growth of a plant uses the above described anti-caking agent for soil. The anti-caking agent for soil has the effect of reducing the caking of soil and improving the poor growth of a plant.
    Type: Grant
    Filed: September 25, 2018
    Date of Patent: August 17, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Shigeyuki Funada, Takahiro Arai, Hiroyuki Kurihara, Katsushige Yamada
  • Patent number: 11078503
    Abstract: Provided is a method of producing 3-hydroxyadipic acid, the method including the step of culturing a microorganism belonging to the genus Serratia capable of producing 3-hydroxyadipic acid.
    Type: Grant
    Filed: May 30, 2017
    Date of Patent: August 3, 2021
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kyohei Isobe, Kenji Kawamura, Masateru Ito, Katsushige Yamada
  • Publication number: 20210222221
    Abstract: A mutant of a trichoderma filamentous fungus has a mutation that results in lost or lowered function of a beta-adaptin large subunit, or a mutation in an amino acid sequence that forms the beta-adaptin large subunit. A method produces a protein while maintaining a low viscosity in a culture solution during culturing by using the mutant.
    Type: Application
    Filed: July 29, 2019
    Publication date: July 22, 2021
    Inventors: Yusuke Kagawa, Shingo Hiramatsu, Katsushige Yamada
  • Publication number: 20210214403
    Abstract: A mutant strain of a filamentous fungus of the genus Trichoderma having a reduced function of a polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 2; and a method of producing a sugar from a cellulose-containing biomass, the method including: step a of producing a cellulase by cultivating a Trichoderma reesei mutant strain having a reduced function of a polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 2, and step b of saccharifying the biomass by using the cellulase obtained in the step a.
    Type: Application
    Filed: May 30, 2019
    Publication date: July 15, 2021
    Inventors: Yusuke Kagawa, Shingo Hiramatsu, Katsushige Yamada
  • Patent number: 11053516
    Abstract: A glucose composition contains, as equivalents in an aqueous solution of the composition having a glucose concentration of 100 g/L, 0-25 g/L of xylose, 0.1-10 g/L of acetic acid, 0.15-2.0 g/L of coumaric acid, and 0.007-0.28 g/L of ferulic acid. By using this glucose composition as a raw material in a method for producing a chemical product by microbial fermentation, the yield of the chemical product can be raised.
    Type: Grant
    Filed: March 8, 2017
    Date of Patent: July 6, 2021
    Assignee: Toray Industries, Inc.
    Inventors: Shigeyuki Funada, Hiroyuki Kurihara, Katsushige Yamada
  • Publication number: 20210115487
    Abstract: A Trichoderma reesei mutant strain has a function of a polypeptide consisting of the amino acid sequence represented by SEQ ID NO: 2 is reduced. A method of producing a protein includes a step of cultivating the Tricho-derma reesei mutant strain, and a method of producing a cellulase includes a step of cultivating the Trichoderma reesei mutant strain.
    Type: Application
    Filed: March 25, 2019
    Publication date: April 22, 2021
    Inventors: Yusuke Kagawa, Haruka Saito, Shingo Hiramatsu, Katsushige Yamada
  • Publication number: 20210079435
    Abstract: The object of the present invention is to separate and provide a ?-glucosidase gene having the effect of efficiently promoting saccharification in hydrolysis of cellulose-containing biomass from a hardly culturable symbiotic protist community of Coptotermes formosanus, and the present invention specifically relates to ?-glucosidase derived from a protist of the genus Pseudotrichonympha consisting of the amino acid sequence represented by SEQ ID NO: 1.
    Type: Application
    Filed: August 29, 2018
    Publication date: March 18, 2021
    Applicants: RIKEN, TORAY INDUSTRIES, INC.
    Inventors: Masato OTAGIRI, Shigeharu MORIYA, Masahiro YUKI, Moriya OHKUMA, Haruka SAITO, Shingo HIRAMATSU, Chiaki YAMADA, Katsushige YAMADA
  • Publication number: 20210069647
    Abstract: A filtration device includes a continuous first unit including a first membrane that separates a liquid into first permeated and non-permeated liquids, a first adjuster that adjusts a flow rate of the first permeated liquid to be substantially constant, and a first liquid scale that detects a liquid amount, a second unit including a second membrane that separates another liquid into second permeated and non-permeated liquids, a second adjuster that adjusts a flow rate of the second permeated liquid to be substantially constant, and a second liquid scale that detects another liquid amount, a first controller that controls the liquid amount in the first storage tank based on measurement values from continuous two first units or from the continuous first and second units, and a second controller that controls the another liquid amount based on a measurement value from the second unit.
    Type: Application
    Filed: November 29, 2018
    Publication date: March 11, 2021
    Inventors: Yuka Asahi, Atsushi Minamino, Hiroyuki Kurihara, Katsushige Yamada