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).

  • Patent number: 10858677
    Abstract: A novel method of producing 3-hydroxyadipic acid using a metabolic pathway of a microorganism is disclosed.
    Type: Grant
    Filed: June 9, 2016
    Date of Patent: December 8, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kyohei Isobe, Kenji Kawamura, Masateru Ito, Katsushige Yamada
  • Patent number: 10858678
    Abstract: A method of producing 3-oxoadipic acid from an aliphatic compound easily utilizable by a microorganism, such as a saccharide, by utilization of a metabolic pathway of the microorganism is disclosed.
    Type: Grant
    Filed: December 9, 2016
    Date of Patent: December 8, 2020
    Assignee: TORAY INDUSTRIES, INC.
    Inventors: Kyohei Isobe, Kenji Kawamura, Masateru Ito, Katsushige Yamada
  • Patent number: 10844444
    Abstract: A method of producing a sugar liquid derived from a cellulose-containing biomass includes (a) saccharifying a pretreated product having alignin content of not more than 8.5% obtained by pretreatment of a cellulose-containing biomass, to obtain a saccharified liquid; (b) filtering the saccharified liquid obtained in Step (a) through a microfiltration membrane to allow formation of a cake on a membrane surface in a feed side while obtaining a sugar liquid from a permeate side; and (c) collecting the cake formed on the membrane surface in Step (b) by peeling from the membrane.
    Type: Grant
    Filed: March 23, 2016
    Date of Patent: November 24, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Yuka Asahi, Atsushi Minamino, Hiroyuki Kurihara, Masashi Higasa, Katsushige Yamada
  • Patent number: 10815501
    Abstract: A sugar liquid or solid sugar is derived from cellulose-containing biomass or blackstrap molasses, wherein content of one or more free amino acids selected from the group consisting of serine, threonine, asparagine, aspartic acid, glutamine, glutamic acid, proline, phenyl alanine, lysine, and histidine, which are impurities, is below the limit of detection.
    Type: Grant
    Filed: April 17, 2018
    Date of Patent: October 27, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Hiroyuki Kurihara, Hiroko Ishizuka, Katsushige Yamada
  • Publication number: 20200325097
    Abstract: Lactic acid is obtained by a method including (A) a step of continuous fermentation wherein a fermentation culture medium of a microorganism having an ability of lactic acid fermentation is filtered through a porous membrane having an average pore size of not less than 0.01 ?m and less than 1 ?m with a transmembrane pressure difference within the range of 0.1 to 20 kPa, and the permeate is collected, while retaining the non-permeated liquid in or returning the non-permeated liquid to the culture, and adding a fermentation feedstock to the culture; (B) a step of filtering the permeate obtained in Step (A) through a nanofiltration membrane; and (C) a step of distilling the permeate obtained in Step (B) under a pressure of not less than 1 Pa and not more than atmospheric pressure, at 25° C. to 200° C. to recover lactic acid.
    Type: Application
    Filed: May 14, 2020
    Publication date: October 15, 2020
    Inventors: Kenji Sawai, Hideki Sawai, Takashi Mimitsuka, Masateru Ito, Katsushige Yamada, Kenji Kawamura, Shin-ichi Minegishi, Izumi Na kagawa, Tatsuya Nagano
  • Patent number: 10781466
    Abstract: A method of producing a sugar liquid includes: (A) reacting mannanase with a liquid component obtained by hydrolysis treatment of woody biomass to obtain a saccharified liquid; and (B) filtering the saccharified liquid in Step (A) through a microfiltration membrane and/or ultrafiltration membrane to collect a sugar liquid from a permeate side.
    Type: Grant
    Filed: September 4, 2015
    Date of Patent: September 22, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Atsushi Minamino, Yuka Asahi, Hiroyuki Kurihara, Jumpei Kishimoto, Masashi Higasa, Katsushige Yamada
  • Publication number: 20200291177
    Abstract: A diol composition includes 1) 95% by weight or more of a diol, the diol being selected from the group consisting of ethylene glycol, 1,3-propanediol, 1,2-propanediol, 1,3-butanediol, 1,4-butanediol and 2,3-butanediol, and 2) impurities derived from biomass in an amount sufficient to cause the diol composition to have an electrical conductivity of 0.6 to 30 mS/m as determined by measuring electrical conductivity as an aqueous diol composition solution at 23° C. with a diol composition concentration of 16.67% and multiplying the measure conductivity by 6.
    Type: Application
    Filed: May 28, 2020
    Publication date: September 17, 2020
    Inventors: Masateru Ito, Izumi Morita, Kenji Kawamura, Tetsuya Yamada, Sadanori Kumazzwa, Katsushige Yamada
  • Publication number: 20200291435
    Abstract: Disclosed is a genetically modified microorganism into which a nucleic acid encoding an enzyme that catalyzes a reaction to reduce 3-oxoadipyl-CoA to 3-hydroxyadipyl-CoA is introduced. In the genetically modified microorganism, a nucleic acid encoding any one of the polypeptides described in (a) to (c) below is introduced or expression of the polypeptide is enhanced: (a) a polypeptide composed of an amino acid sequence represented by any one of SEQ ID NOs: 1 to 6 and 213, (b) a polypeptide composed of the same amino acid sequence as any one of the amino acid sequences, except that one or several amino acids are substituted, deleted, inserted, and/or added, and having enzymatic activity that catalyzes a reaction to reduce 3-oxoadipyl-CoA to 3-hydroxyadipyl-CoA, and (c) a polypeptide composed of an amino acid sequence with a sequence identity of not less than 70% to any one of the amino acid sequences and having activity to reduce 3-oxoadipyl-CoA to 3-hydroxyadipyl-CoA.
    Type: Application
    Filed: November 29, 2018
    Publication date: September 17, 2020
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kyohei ISOBE, Kenji KAWAMURA, Katsushige YAMADA
  • Publication number: 20200283682
    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: Application
    Filed: September 25, 2018
    Publication date: September 10, 2020
    Inventors: Shigeyuki Funada, Takahiro Arai, Hiroyuki Kurihara, Katsushige Yamada
  • Publication number: 20200247835
    Abstract: A method of producing lignin includes obtaining an alkali-treated product by an alkali treatment in which a lignin-containing biomass is brought into contact with an alkaline aqueous solution; and keeping a temperature of the alkali-treated product at 35° C. or higher, and adjusting a pH of the alkali-treated product to pH 7 or lower to precipitate lignin, and recovering the lignin.
    Type: Application
    Filed: July 30, 2018
    Publication date: August 6, 2020
    Inventors: Takahiro Arai, Hiroyuki Kurihara, Shigeyuki Funada, Katsushige Yamada
  • Publication number: 20200232052
    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: Application
    Filed: May 30, 2017
    Publication date: July 23, 2020
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Kyohei ISOBE, Kenji KAWAMURA, Masateru ITO, Katsushige YAMADA
  • Publication number: 20200216869
    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: Application
    Filed: March 30, 2017
    Publication date: July 9, 2020
    Inventors: Takuya Kasahara, Chiaki Yamada, Hiroyuki Kurihara, Katsushige Yamada
  • Patent number: 10696785
    Abstract: A diol composition includes a diol as a major component and has an electrical conductivity of 0.6 to 30 mS/m.
    Type: Grant
    Filed: February 21, 2012
    Date of Patent: June 30, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Masateru Ito, Izumi Morita, Kenji Kawamura, Tetsuya Yamada, Sadanori Kumazawa, Katsushige Yamada
  • Patent number: 10683254
    Abstract: Lactic acid is obtained by a method including (A) a step of continuous fermentation wherein a fermentation culture medium of a microorganism having an ability of lactic acid fermentation is filtered through a porous membrane having an average pore size of not less than 0.01 ?m and less than 1 ?m with a transmembrane pressure difference within the range of 0.1 to 20 kPa, and the permeate is collected, while retaining the non-permeated liquid in or returning the non-permeated liquid to the culture, and adding a fermentation feedstock to the culture; (B) a step of filtering the permeate obtained in Step (A) through a nanofiltration membrane; and (C) a step of distilling the permeate obtained in Step (B) under a pressure of not less than 1 Pa and not more than atmospheric pressure, at 25° C. to 200° C. to recover lactic acid.
    Type: Grant
    Filed: December 25, 2009
    Date of Patent: June 16, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Kenji Sawai, Hideki Sawai, Takashi Mimitsuka, Ito Masateru, Katsushige Yamada, Kenji Kawamura, Shin-ichi Minegishi, Izumi Nakagawa, Tatsuya Nagano
  • Publication number: 20200165647
    Abstract: A method produces a protein using a filamentous fungus, in which decrease in dissolved oxygen saturation during culture of the filamentous fungus can be suppressed even when the culture is scaled up. The method of producing a protein includes culturing a fungus belonging to the genus Trichoderma whose BXL1 gene was disrupted, using a biomass containing cellulose and xylan as an inducer. The use of the BXL1 gene-disrupted fungus belonging to the genus Trichoderma enables suppression of the decrease in dissolved oxygen saturation even when xylose and cellulose are used as inducers.
    Type: Application
    Filed: March 30, 2017
    Publication date: May 28, 2020
    Inventors: Koji Kobayashi, Shingo Hiramatsu, Katsushige Yamada
  • Patent number: 10640445
    Abstract: A method of producing lactic acid includes filtering a lactic acid-containing aqueous solution through a nanofiltration membrane to recover an aqueous lactic acid solution from the permeate side (Step A); distilling the aqueous lactic acid solution to recover lactic acid from the vapor side (Step B); and crystallizing the lactic acid obtain in Step B, and performing solid-liquid separation to recover a lactic acid crystal(s) (Step C).
    Type: Grant
    Filed: September 5, 2014
    Date of Patent: May 5, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Kenji Kawamura, Miyuki Horiguchi, Satoshi Sakami, Katsushige Yamada
  • Patent number: 10590497
    Abstract: A novel fungus belongs to the genus Trichoderma whose cellulase can be used to hydrolyze cellulose-based biomass without degradation of xylan contained in the biomass into xylose, and a method produces glucose and xylo-oligosaccharides from a cellulose containing biomass using it. The fungus belonging to the genus Trichoderma includes N- and C-terminal domains of the ?-xylosidase 1 (BXL1) gene, but lacks the Fn3-like domain of the gene due to its disruption. The use of this fungus belonging to the genus Trichoderma results in deletion of ?-xylosidase activity and increase in ?-glucosidase activity. Thus, in hydrolysis of cellulose contained in biomass, xylan contained in the biomass is not degraded into xylose, which enables efficient production of glucose and xylo-oligosaccharides.
    Type: Grant
    Filed: March 30, 2017
    Date of Patent: March 17, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Koji Kobayashi, Shingo Hiramatsu, Katsushige Yamada
  • Patent number: 10584084
    Abstract: A method of producing 2,3-butanediol includes subjecting a 2,3-butanediol culture liquid produced by microbial fermentation to nanofiltration membrane treatment and ion-exchange treatment (Step A), and then adding an alkaline substance and performing distillation (Step B).
    Type: Grant
    Filed: October 12, 2012
    Date of Patent: March 10, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Kenji Kawamura, Izumi Morita, Masateru Ito, Kyohei Isobe, Satoshi Sakami, Katsushige Yamada
  • Publication number: 20200062704
    Abstract: The present invention is a method of producing ?-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. The method can increase the selectivity of ?-caprolactam.
    Type: Application
    Filed: December 5, 2017
    Publication date: February 27, 2020
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Daijiro TSUKAMOTO, Masateru ITO, Katsushige YAMADA, Masato AKAHIRA, Daisuke YAMAMOTO, Koji YAMAUCHI
  • Patent number: 10563238
    Abstract: A method of producing a sugar liquid includes steps (1) providing a pretreatment product of a first cellulose-containing biomass; (2) adding a second cellulose-containing biomass or a pretreatment product thereof in an amount ranging from 1 to 50% based on the solid content weight of the first cellulose-containing biomass pretreatment product of step (1), and carrying out hydrolysis by a filamentous fungus-derived cellulase; and (3) subjecting a hydrolysate of step (2) to solid-liquid separation to obtain a solution component and a hydrolysis residue, and filtering the solution component through an ultrafiltration membrane to recover the filamentous fungus-derived cellulase as a retentate and recover a sugar liquid as a permeate.
    Type: Grant
    Filed: August 21, 2014
    Date of Patent: February 18, 2020
    Assignee: Toray Industries, Inc.
    Inventors: Chiaki Yamada, Hiroyuki Kurihara, Katsushige Yamada