Patents by Inventor Shigeaki Harayama

Shigeaki Harayama 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: 10597631
    Abstract: While green algae are expected to serve as raw materials of biomass fuels, they are damaged by high-intensity light when subjected to mass-culture outdoors in summer, and biomass productivity is deteriorated as a consequence. In order to overcome such a drawback, the present invention provides a high-intensity light resistant green algae mutant that can be subjected to outdoor culture in summer. Specifically, the present invention relates to such green algae mutant, wherein functions or expression levels of a protein having a response regulatory domain at the N-terminus and a WD40 domain at the C-terminus are lower than those in a wild-type strain, and wherein said green algae mutant grows faster than a wild-type strain when cultured at a light intensity of 1,000, 1,500, or 2,000 ?mol photons m?2 s?1 measured as photosynthetically active radiation (PAR).
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: March 24, 2020
    Assignee: DENSO CORPORATION
    Inventors: Shigeaki Harayama, Jumpei Hayakawa, Yoko Ide, Yuki Tanaka, Satoko Komatsu, Minoru Kurata
  • Patent number: 10370687
    Abstract: It is an object of the present invention to provide the eukaryotic microalgae, which have been genetically modified such that larger amounts of assimilation products produced by photosynthesis are directed to the synthesis of triglyceride (=triacylglycerol; TAG), and specifically, the present invention relates to a genetically modified strain of eukaryotic microalgae, in which a gene encoding an AGL1 protein is highly expressed, or a gene encoding an FAT1 protein and/or a gene encoding a DGAT2 protein are further highly expressed, as well as the gene encoding an AGL1 protein, wherein TAG productivity is improved in comparison to the parent strain thereof.
    Type: Grant
    Filed: September 2, 2016
    Date of Patent: August 6, 2019
    Assignees: CHUO UNIVERSITY, DENSO CORPORATION
    Inventors: Shigeaki Harayama, Yoko Ide, Jun Abe, Yuki Kasai, Norihide Kurano
  • Publication number: 20180371401
    Abstract: While green algae are expected to serve as raw materials of biomass fuels, they are damaged by high-intensity light when subjected to mass-culture outdoors in summer, and biomass productivity is deteriorated as a consequence. In order to overcome such a drawback, the present invention provides a high-intensity light resistant green algae mutant that can be subjected to outdoor culture in summer. Specifically, the present invention relates to such green algae mutant, wherein functions or expression levels of a protein having a response regulatory domain at the N-terminus and a WD40 domain at the C-terminus are lower than those in a wild-type strain, and wherein said green algae mutant grows faster than a wild-type strain when cultured at a light intensity of 1,000, 1,500, or 2,000 ?mol photons m?2 s?1 measured as photosynthetically active radiation (PAR).
    Type: Application
    Filed: November 30, 2016
    Publication date: December 27, 2018
    Inventors: Shigeaki HARAYAMA, Jumpei HAYAKAWA, Yoko IDE, Yuki TANAKA, Satoko KOMATSU, Minoru KURATA
  • Patent number: 10087496
    Abstract: A green alga variant having a dual-specificity tyrosine-phosphorylation regulated protein kinase activity that is reduced compared to a dual-specificity tyrosine-phosphorylation regulated protein kinase activity of a parental strain is provided. The green alga variant increases a total amount of a lipid production per unit time and per unit culture area compared to a total amount of a lipid production of the parental strain. A dual-specificity tyrosine-phosphorylation regulated protein kinase of the parental strain is a protein having an amino acid sequence with at least 50% sequence identity with the amino acid sequence of an active site and a substrate recognition site of SEQ ID NO: 4 and having the dual-specificity tyrosine-phosphorylation regulated protein kinase activity.
    Type: Grant
    Filed: November 7, 2014
    Date of Patent: October 2, 2018
    Assignee: DENSO CORPORATION
    Inventors: Jumpei Hayakawa, Yoko Ide, Shigeaki Harayama, Hidehiko Yasui
  • Publication number: 20180245112
    Abstract: It is an object of the present invention to provide the eukaryotic microalgae, which have been genetically modified such that larger amounts of assimilation products produced by photosynthesis are directed to the synthesis oftriglyceride (=triacylglycerol; TAG), and specifically, the present invention relates to a genetically modified strain of eukaryotic microalgae, in which a gene encoding an AGL1 protein is highly expressed, or a gene encoding an FAT1 protein and/or a gene encoding a DGAT2 protein are further highly expressed, as well as the gene encoding an AGL1 protein, wherein TAG productivity is improved in comparison to the parent strain thereof.
    Type: Application
    Filed: September 2, 2016
    Publication date: August 30, 2018
    Inventors: Shigeaki HARAYAMA, Yoko IDE, Jun ABE, Yuki KASAI, Norihide KURANO
  • Patent number: 9790461
    Abstract: A culture method for microalgae that cultures unicellular green microalgae belonging to the genus Coccomyxa and groups of organisms closely related thereto, or the Watanabea clade, in an open outdoor culture system using broth having a pH of 4 or lower. A culture method for microalgae that cultures microalgae of the genus Coccomyxa and groups of organisms closely related thereto, or Pseudococcomyxa, in an open outdoor culture system using broth having a pH of 4 or lower containing ammonia nitrogen.
    Type: Grant
    Filed: December 4, 2013
    Date of Patent: October 17, 2017
    Assignees: DENSO CORPORATION, Kyoto University, Chuo University
    Inventors: Minoru Kurata, Hiroaki Fukuda, Norihide Kurano, Hideaki Miyashita, Shigeaki Harayama
  • Publication number: 20160273061
    Abstract: A green alga variant having a dual-specificity tyrosine-phosphorylation regulated protein kinase activity that is reduced compared to a dual-specificity tyrosine-phosphorylation regulated protein kinase activity of a parental strain is provided. The green alga variant increases a total amount of a lipid production per unit time and per unit culture area compared to a total amount of a lipid production of the parental strain. A dual-specificity tyrosine-phosphorylation regulated protein kinase of the parental strain is a protein having an amino acid sequence with at least 50% sequence identity with the amino acid sequence of an active site and a substrate recognition site of SEQ ID NO: 4 and having the dual-specificity tyrosine-phosphorylation regulated protein kinase activity.
    Type: Application
    Filed: November 7, 2014
    Publication date: September 22, 2016
    Inventors: Jumpei HAYAKAWA, Yoko IDE, Shigeaki HARAYAMA, Hidehiko YASUI
  • Publication number: 20150337255
    Abstract: A culture method for microalgae that cultures unicellular green microalgae belonging to the genus Coccomyxa and groups of organisms closely related thereto, or the Watanabea clade, in an open outdoor culture system using broth having a pH of 4 or lower. A culture method for microalgae that cultures microalgae of the genus Coccomyxa and groups of organisms closely related thereto, or Pseudococcomyxa, in an open outdoor culture system using broth having a pH of 4 or lower containing ammonia nitrogen.
    Type: Application
    Filed: December 4, 2013
    Publication date: November 26, 2015
    Applicant: DENSO CORPORATION
    Inventors: Minoru KURATA, Hiroaki FUKUDA, Norihide KURANO, Hideaki MIYASHITA, Shigeaki HARAYAMA
  • Patent number: 8071289
    Abstract: A method to make libraries of hybrid polynucleotide molecules of two parental polynucleotide molecules utilizing single-stranded DNA was invented. Example of the method comprises several steps: (i) preparation of two single-stranded polynucleotide molecules comprising sequences containing one or more parts of homology and one or more parts of heterology, (ii) random or non-random fragmentation of said polynucleotides, (iii) hybridization of the fragmented molecules followed by de novo polynucleotide synthesis (i.e. polynucleotide chain elongation) on the hybridized molecules, (iv) separation of the chain elongation products (i.e. double-stranded polynucleotide molecules) into single-stranded polynucleotide molecules (denaturation) (v) hybridization of the resultant single-stranded polynucleotide molecules followed by de novo polynucleotide synthesis on the hybridized molecules, and (vi) repeating at least two further cycles of steps (iv) and (v).
    Type: Grant
    Filed: February 25, 2008
    Date of Patent: December 6, 2011
    Assignee: Alligator Bioscience AB
    Inventors: Shigeaki Harayama, Kouhei Ohnishi, Miho Kikuchi
  • Patent number: 7662551
    Abstract: A method to make libraries of hybrid polynucleotide molecules of two parental polynucleotide molecules utilizing single-stranded DNA was invented. Example of the method comprises several steps: (i) preparation of two single-stranded polynucleotide molecules comprising sequences containing one or more parts of homology and one or more parts of heterology, (ii) random or non-random fragmentation of said polynucleotides, (iii) hybridization of the fragmented molecules followed by de novo polynucleotide synthesis (i.e. polynucleotide chain elongation) on the hybridized molecules, (iv) separation of the chain elongation products (i.e. double-stranded polynucleotide molecules) into single-stranded polynucleotide molecules (denaturation) (v) hybridization of the resultant single-stranded polynucleotide molecules followed by de novo polynucleotide synthesis on the hybridized molecules, and (vi) repeating at least two further cycles of steps (iv) and (v).
    Type: Grant
    Filed: November 18, 2002
    Date of Patent: February 16, 2010
    Assignee: Alligator Bioscience AB
    Inventors: Shigeaki Harayama, Kouhei Ohnishi, Miho Kikuchi
  • Patent number: 7531330
    Abstract: This invention relates to S-hydroxynitrile lyase having excellent tolerance to heat, organic solvents, and the like, which is obtained by modifying at least one amino acid in the helix D3, helix A, and ?-sheet 2 domains in the amino acid sequence of wild-type S-hydroxynitrile lyase.
    Type: Grant
    Filed: March 30, 2005
    Date of Patent: May 12, 2009
    Assignee: Nippon Shokubai Co., Ltd.
    Inventors: Eita Ichige, Hisashi Semba, Toshiaki Shijuku, Shigeaki Harayama
  • Publication number: 20080146461
    Abstract: A method to make libraries of hybrid polynucleotide molecules of two parental polynucleotide molecules utilizing single-stranded DNA was invented. Example of the method comprises several steps: (i) preparation of two single-stranded polynucleotide molecules comprising sequences containing one or more parts of homology and one or more parts of heterology, (ii) random or non-random fragmentation of said polynucleotides, (iii) hybridization of the fragmented molecules followed by de novo polynucleotide synthesis (i.e. polynucleotide chain elongation) on the hybridized molecules, (iv) separation of the chain elongation products (i.e. double-stranded polynucleotide molecules) into single-stranded polynucleotide molecules (denaturation) (v) hybridization of the resultant single-stranded polynucleotide molecules followed by de novo polynucleotide synthesis on the hybridized molecules, and (vi) repeating at least two further cycles of steps (iv) and (v).
    Type: Application
    Filed: February 25, 2008
    Publication date: June 19, 2008
    Inventors: Shigeaki Harayama, Kouhei Ohnishi, Miho Kikuchi
  • Publication number: 20080124784
    Abstract: This invention relates to S-hydroxynitrile lyase having excellent tolerance to heat, organic solvents, and the like, which is obtained by modifying at least one amino acid in the helix D3?, helix A, and ?-sheet 2 domains in the amino acid sequence of wild-type S-hydroxynitrile lyase.
    Type: Application
    Filed: March 30, 2005
    Publication date: May 29, 2008
    Inventors: Eita Ichige, Hisashi Semba, Toshiaki Shijuku, Shigeaki Harayama
  • Publication number: 20030138825
    Abstract: A method to make libraries of hybrid polynucleotide molecules of two parental polynucleotide molecules utilizing single-stranded DNA was invented. Example of the method comprises several steps: (i) preparation of two single-stranded polynucleotide molecules comprising sequences containing one or more parts of homology and one or more parts of heterology, (ii) random or non-random fragmentation of said polynucleotides, (iii) hybridization of the fragmented molecules followed by de novo polynucleotide synthesis (i.e. polynucleotide chain elongation) on the hybridized molecules, (iv) separation of the chain elongation products (i.e. double-stranded polynucleotide molecules) into single-stranded polynucleotide molecules (denaturation) (v) hybridization of the resultant single-stranded polynucleotide molecules followed by de novo polynucleotide synthesis on the hybridized molecules, and (vi) repeating at least two further cycles of steps (iv) and (v).
    Type: Application
    Filed: November 18, 2002
    Publication date: July 24, 2003
    Inventors: Shigeaki Harayama, Kouhei Ohnishi, Miho Kikuchi
  • Publication number: 20020086292
    Abstract: A method to make libraries of hybrid polynucleotide molecules of two parental polynucleotide molecules utilizing single-stranded DNA was invented. Example of the method comprises several steps: (i) preparation of two single-stranded polynucleotide molecules comprising sequences containing one or more parts of homology and one or more parts of heterology, (ii) random or non-random fragmentation of said polynucleotides, (iii) hybridization of the fragmented molecules followed by de novo polynucleotide synthesis (i.e. polynucleotide chain elongation) on the hybridized molecules, (iv) separation of the chain elongation products (i.e. double-stranded polynucleotide molecules) into single-stranded polynucleotide molecules (denaturation) (v) hybridization of the resultant single-stranded polynucleotide molecules followed by de novo polynucleotide synthesis on the hybridized molecules, and (vi) repeating at least two further cycles of steps (iv) and (v).
    Type: Application
    Filed: December 22, 2000
    Publication date: July 4, 2002
    Inventors: Shigeaki Harayama, Kouhei Ohnishi, Miho Kikuchi
  • Patent number: 5217884
    Abstract: A process using microorganisms which contain genes, which form an active xylene monooxygenase, which form no effective, chromosomally or plasmid-coded alcohol hydrogenase, and which are, thus, capable of hydroxylating methyl groups on aromatic 5- or 6-atom heterocycles to the corresponding hydroxymethyl derivatives, for the production of hydroxymethylated 5- or 6-atom heterocycles.
    Type: Grant
    Filed: September 23, 1991
    Date of Patent: June 8, 1993
    Assignee: Lonza Ltd.
    Inventors: Thomas Zimmermann, Andreas Kiener, Shigeaki Harayama