Patents by Inventor Kazuyoshi Yajima

Kazuyoshi Yajima 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: 20180271930
    Abstract: A method for raising poultry includes feeding poultry with a feed comprising oxidized glutathione during a period between hatching and 24 to 168 hours after the hatching.
    Type: Application
    Filed: June 8, 2018
    Publication date: September 27, 2018
    Applicant: Kaneka Corporation
    Inventors: Kazuyoshi Yajima, Kan Sato
  • Patent number: 9926580
    Abstract: A process for producing on an industrial scale the oxidized coenzyme Q10, includes culturing a reduced coenzyme Q10-producing microorganism selected from the group consisting of the genus Rhodobacter, the genus Saitoella, the genus Schizosaccharomyces and the genus Trichosporon, to obtain microbial cells containing reduced coenzyme Q10 at a ratio of not less than 70 mole % among the entire coenzymes Q10; and one of: (a) oxidizing thus-obtained reduced coenzyme Q10 to oxidized coenzyme Q10 and then extracting the oxidized coenzyme Q10 by an organic solvent; or (b) extracting reduced coenzyme Q10 by an organic solvent and oxidizing the extracted reduced coenzyme Q10 to oxidized coenzyme Q10.
    Type: Grant
    Filed: March 21, 2016
    Date of Patent: March 27, 2018
    Assignee: KANEKA CORPORATION
    Inventors: Kazuyoshi Yajima, Takahisa Kato, Akihisa Kanda, Shiro Kitamura, Yasuyoshi Ueda
  • Publication number: 20160304915
    Abstract: A process for producing on an industrial scale the oxidized coenzyme Q10, includes culturing a reduced coenzyme Q10-producing microorganism selected from the group consisting of the genus Rhodobacter, the genus Saitoella, the genus Schizosaccharomyces and the genus Trichosporon, to obtain microbial cells containing reduced coenzyme Q10 at a ratio of not less than 70 mole % among the entire coenzymes Q10; and one of: (a) oxidizing thus-obtained reduced coenzyme Q10 to oxidized coenzyme Q10 and then extracting the oxidized coenzyme Q10 by an organic solvent; or (b) extracting reduced coenzyme Q10 by an organic solvent and oxidizing the extracted reduced coenzyme Q10 to oxidized coenzyme Q10.
    Type: Application
    Filed: March 21, 2016
    Publication date: October 20, 2016
    Inventors: Kazuyoshi Yajima, Takahisa Kato, Akihisa Kanda, Shiro Kitamura, Yasuyoshi Ueda
  • Patent number: 9315839
    Abstract: The present invention relates to a process for producing reduced coenzyme Q10 which comprises obtaining microbial cells containing reduced coenzyme Q10 at a ratio of not less than 70 mole % among the entire coenzymes Q10, optionally disrupting the cells and recovering thus produced reduced coenzyme Q10. The present invention also relates to a process for producing oxidized coenzyme Q10 which comprises either recovering oxidized coenzyme Q10 after oxidizing the above-mentioned microbial cells or disrupted product thereof, or recovering reduced coenzyme Q10 from the above-mentioned microbial cells or disrupted product thereof to oxidize thus-obtained reduced coenzyme Q10 thereafter. According to the processes of the present invention, reduced coenzyme Q10 and oxidized coenzyme Q10 can be produced simply on the industrial scale.
    Type: Grant
    Filed: February 3, 2011
    Date of Patent: April 19, 2016
    Assignee: KANEKA CORPORATION
    Inventors: Kazuyoshi Yajima, Takahisa Kato, Akihisa Kanda, Shiro Kitamura, Yasuyoshi Ueda
  • Patent number: 8889389
    Abstract: The present invention relates to an efficient and economical process for producing a protein A-like protein. Hosts such as Escherichia coli and Bacillus subtilis have been used in the production of a protein A-like protein using a genetic recombination technique and however, their low productivity has been a big cause of high cost. Thus, it has been desired strongly to immediately establish a technique enabling the inexpensive, large-scale production of a protein A-like protein using recombinant DNA techniques other than Escherichia coli and Bacillus subtilis. The present invention provides a process for producing a protein A-like protein in large amounts, for example, a process comprising allowing a recombinant Brevibacillus genus bacterium to express and secrete the protein in large amounts into a culture solution and separating and collecting the accumulated protein A-like protein from the culture solution.
    Type: Grant
    Filed: October 29, 2013
    Date of Patent: November 18, 2014
    Assignee: Kaneka Corporation
    Inventors: Akihiko Kosugi, Kazuyoshi Yajima
  • Publication number: 20140080179
    Abstract: The present invention relates to an efficient and economical process for producing a protein A-like protein. Hosts such as Escherichia coli and Bacillus subtilis have been used in the production of a protein A-like protein using a genetic recombination technique and however, their low productivity has been a big cause of high cost. Thus, it has been desired strongly to immediately establish a technique enabling the inexpensive, large-scale production of a protein A-like protein using recombinant DNA techniques other than Escherichia coli and Bacillus subtilis. The present invention provides a process for producing a protein A-like protein in large amounts, for example, a process comprising allowing a recombinant Brevibacillus genus bacterium to express and secrete the protein in large amounts into a culture solution and separating and collecting the accumulated protein A-like protein from the culture solution.
    Type: Application
    Filed: October 29, 2013
    Publication date: March 20, 2014
    Applicant: Kaneka Corporation
    Inventors: Akihiko KOSUGI, Kazuyoshi YAJIMA
  • Patent number: 8597908
    Abstract: The present invention relates to an efficient and economical process for producing a protein A-like protein. Hosts such as Escherichia coli and Bacillus subtilis have been used in the production of a protein A-like protein using a genetic recombination technique and however, their low productivity has been a big cause of high cost. Thus, it has been desired strongly to immediately establish a technique enabling the inexpensive, large-scale production of a protein A-like protein using recombinant DNA techniques other than Escherichia coli and Bacillus subtilis. The present invention provides a process for producing a protein A-like protein in large amounts, for example, a process comprising allowing a recombinant Brevibacillus genus bacterium to express and secrete the protein in large amounts into a culture solution and separating and collecting the accumulated protein A-like protein from the culture solution.
    Type: Grant
    Filed: July 1, 2005
    Date of Patent: December 3, 2013
    Assignee: Kaneka Corporation
    Inventors: Akihiko Kosugi, Kazuyoshi Yajima
  • Patent number: 8163525
    Abstract: The present disclosure describes a method of producing a long-chain prenyl diphosphate synthase (in particular decaprenyl diphosphate synthase and solanesyl diphosphate synthase) using a gene and a protein which are required for enabling or enhancing the activity expression of a eukaryote-derived long-chain prenyl diphosphate synthase as well as a method of efficiently producing a coenzyme Q having a long-chain isoprenoid in its side chain (in particular coenzyme Q9 or coenzyme Q10) using a microorganism. The present disclosure also describes a DNA having a base sequence shown under SEQ ID NO:1, 3 or 5 and a DNA sequence derived from the above base sequence by deletion, addition, insertion and/or substitution of one to several bases thereof, and coding for a protein enabling (functioning) or enhancing the activity expression of a eukaryote-derived long-chain prenyl diphosphate synthase in a cell of a host organism.
    Type: Grant
    Filed: June 13, 2008
    Date of Patent: April 24, 2012
    Assignee: Kaneka Corporation
    Inventors: Hideyuki Matsuda, Makoto Kawamukai, Kazuyoshi Yajima
  • Publication number: 20110136191
    Abstract: The present invention relates to a process for producing reduced coenzyme Q10 which comprises obtaining microbial cells containing reduced coenzyme Q10 at a ratio of not less than 70 mole % among the entire coenzymes Q10, optionally disrupting the cells and recovering thus produced reduced coenzyme Q10. The present invention also relates to a process for producing oxidized coenzyme Q10 which comprises either recovering oxidized coenzyme Q10 after oxidizing the above-mentioned microbial cells or disrupted product thereof, or recovering reduced coenzyme Q10 from the above-mentioned microbial cells or disrupted product thereof to oxidize thus-obtained reduced coenzyme Q10 thereafter. According to the processes of the present invention, reduced coenzyme Q10 and oxidized coenzyme Q10 can be produced simply on the industrial scale.
    Type: Application
    Filed: February 3, 2011
    Publication date: June 9, 2011
    Applicant: KANEKA CORPORATION
    Inventors: Kazuyoshi YAJIMA, Takahisa KATO, Akihisa KANDA, Shiro KITAMURA, Yasuyoshi UEDA
  • Patent number: 7910340
    Abstract: The present invention relates to a process for producing reduced coenzyme Q10 which comprises obtaining microbial cells containing reduced coenzyme Q10 at a ratio of not less than 70 mole % among the entire coenzymes Q10, optionally disrupting the cells and recovering thus-produced reduced coenzyme Q10. The present invention also relates to a process for producing oxidized coenzyme Q10 which comprises either recovering oxidized coenzyme Q10 after oxidizing the above-mentioned microbial cells or disrupted product thereof, or recovering reduced coenzyme Q10 from the above-mentioned microbial cells or disrupted product thereof to oxidize thus-obtained reduced coenzyme Q10 thereafter. According to the processes of the present invention, reduced coenzyme Q10 and oxidized coenzyme Q10 can be produced simply on the industrial scale.
    Type: Grant
    Filed: October 31, 2007
    Date of Patent: March 22, 2011
    Assignee: Kaneka Corporation
    Inventors: Kazuyoshi Yajima, Takahisa Kato, Akihisa Kanda, Shiro Kitamura, Yasuyoshi Ueda
  • Publication number: 20090130727
    Abstract: The present invention provides a method of producing a long-chain prenyl diphosphate synthase (in particular decaprenyl diphosphate synthase and solanesyl diphosphate synthase) using a gene and a protein which are required for enabling or enhancing the activity expression of a eukaryote-derived long-chain prenyl diphosphate synthase as well as a method of efficiently producing a coenzyme Q having a long-chain isoprenoid in its side chain (in particular coenzyme Q9 or coenzyme Q10) using a microorganism. The present invention also relates to a DNA having a base sequence shown under SEQ ID NO:1, 3 or 5 and a DNA sequence derived from the above base sequence by deletion, addition, insertion and/or substitution of one to several bases thereof, and coding for a protein enabling (functioning) or enhancing the activity expression of a eukaryote-derived long-chain prenyl diphosphate synthase in a host microorganism.
    Type: Application
    Filed: June 13, 2008
    Publication date: May 21, 2009
    Inventors: Hideyuki MATSUDA, Makoto KAWAMUKAI, Kazuyoshi YAJIMA
  • Patent number: 7402413
    Abstract: The present invention provides a method of producing a long-chain prenyl diphosphate synthase (in particular decaprenyl diphosphate synthase and solanesyl diphosphate synthase) using a gene and a protein which are required for enabling or enhancing the activity expression of a eukaryote-derived long-chain prenyl diphosphate synthase as well as a method of efficiently producing a coenzyme Q having a long-chain isoprenoid in its side chain (in particular coenzyme Q9 or coenzyme Q10) using a microorganism. The present invention relates to a DNA having a base sequence shown under SEQ ID NO:1, 3 or 5 and a DNA sequence derived from the above base sequence by deletion, addition, insertion and/or substitution of one to several bases thereof, and coding for a protein enabling (functioning) or enhancing the activity expression of a eukaryote-derived long-chain prenyl diphosphate synthase in a host microorganism.
    Type: Grant
    Filed: May 10, 2002
    Date of Patent: July 22, 2008
    Assignee: Kaneka Corporation
    Inventors: Hideyuki Matsuda, Makoto Kawamukai, Kazuyoshi Yajima
  • Publication number: 20080171373
    Abstract: The present invention relates to a process for producing reduced coenzyme Q10 which comprises obtaining microbial cells containing reduced coenzyme Q10 at a ratio of not less than 70 mole % among the entire coenzymes Q10, optionally disrupting the cells and recovering thus-produced reduced coenzyme Q10. The present invention also relates to a process for producing oxidized coenzyme Q10 which comprises either recovering oxidized coenzyme Q10 after oxidizing the above-mentioned microbial cells or disrupted product thereof, or recovering reduced coenzyme Q10 from the above-mentioned microbial cells or disrupted product thereof to oxidize thus-obtained reduced coenzyme Q10 thereafter. According to the processes of the present invention, reduced coenzyme Q10 and oxidized coenzyme Q10 can be produced simply on the industrial scale.
    Type: Application
    Filed: October 31, 2007
    Publication date: July 17, 2008
    Inventors: Kazuyoshi Yajima, Takahisa Kato, Akihisa Kanda, Shiro Kitamura, Yasuyoshi Ueda
  • Publication number: 20080064074
    Abstract: The invention aims at providing a process for producing coenzyme Q10 efficiently in microorganisms by utilizing a coenzyme Q10 side chain synthesis gene derived from a fungal species belonging to the genus Rhodotorula. The present invention relates to a DNA having a DNA sequence described under SEQ ID NO:1, 3 or 5 or derived from the above sequence by deletion, addition, insertion and/or substitution of one or several bases and encoding a protein having decaprenyl diphosphate synthase activity.
    Type: Application
    Filed: August 10, 2007
    Publication date: March 13, 2008
    Applicant: KANEKA CORPORATION
    Inventors: Hideyuki MATSUDA, Makoto KAWAMUKAI, Kazuyoshi YAJIMA, Yasuhiro IKENAKA
  • Patent number: 7320883
    Abstract: The invention aims at providing a process for producing coenzyme Q10 efficiently in microorganisms by utilizing a coenzyme Q10 side chain synthesis gene derived from a fungal species belonging to the genus Aspergillus and genus Leucosporidium. The present invention relates to a DNA having a DNA sequence described under SEQ ID NO:1 and 2 or derived from the above sequence by deletion, addition, insertion and/or substitution of one or several bases and encoding a protein having decaprenyl diphosphate synthase activity.
    Type: Grant
    Filed: December 27, 2001
    Date of Patent: January 22, 2008
    Assignee: Kaneka Corporation
    Inventors: Hideyuki Matsuda, Makoto Kawamukai, Kazuyoshi Yajima, Yasuhiro Ikenaka
  • Publication number: 20070243582
    Abstract: The present invention relates to an efficient and economical process for producing a protein A-like protein. Hosts such as Escherichia coli and Bacillus subtilis have been used in the production of a protein A-like protein using a genetic recombination technique and however, their low productivity has been a big cause of high cost. Thus, it has been desired strongly to immediately establish a technique enabling the inexpensive, large-scale production of a protein A-like protein using recombinant DNA techniques other than Escherichia coli and Bacillus subtilis. The present invention provides a process for producing a protein A-like protein in large amounts, for example, a process comprising allowing a recombinant Brevibacillus genus bacterium to express and secrete the protein in large amounts into a culture solution and separating and collecting the accumulated protein A-like protein from the culture solution.
    Type: Application
    Filed: July 1, 2005
    Publication date: October 18, 2007
    Applicant: KANEKA CORPORATION
    Inventors: Akihiko Kosugi, Kazuyoshi Yajima
  • Patent number: 7195892
    Abstract: The subject of the present invention is to provide a ?-lactam acylase protein having high activity, a gene coding for said ?-lactam acylase protein, a recombinant vector having said gene, a transformant containing said recombinant vector, and a method of producing a ?-lactam antibiotic such as amoxycillin using said ?-lactam acylase. A ?-lactam acylase gene of Stenotrophomonas maltophilia was cloned, the DNA base sequence and the amino acid sequence expected therefrom was determined, and a Stenotrophomonas ?-lactam acylase gene was obtained. This gene was found to code for a protein with a molecular weight of about 70 kDa and having ?-lactam acylase activity, and could efficiently produce amoxycillin without being inhibited by phenylacetic acid, etc. Furthermore, by modification of the amino acid sequence, a protein which can more efficiently produce amoxycillin could be obtained.
    Type: Grant
    Filed: May 30, 2003
    Date of Patent: March 27, 2007
    Assignee: Kaneka Corporation
    Inventors: Akiko Nishi, Takumi Mano, Shinichi Yokota, Masayuki Takano, Kazuyoshi Yajima
  • Publication number: 20060035363
    Abstract: The subject of the present invention is to provide a ?-lactam acylase protein having high activity, a gene coding for said ?-lactam acylase protein, a recombinant vector having said gene, a transformant containing said recombinant vector, and a method of producing a ?-lactam antibiotic such as amoxycillin using said ?-lactam acylase. A ?-lactam acylase gene of Stenotrophomonas maltophilia was cloned, the DNA base sequence and the amino acid sequence expected therefrom was determined, and a Stenotrophomonas ?-lactam acylase gene was obtained. This gene was found to code for a protein with a molecular weight of about 70 kDa and having ?-lactam acylase activity, and could efficiently produce amoxycillin without being inhibited by phenylacetic acid, etc. Furthermore, by modification of the amino acid sequence, a protein which can more efficiently produce amoxycillin could be obtained.
    Type: Application
    Filed: May 30, 2003
    Publication date: February 16, 2006
    Inventors: Akiko Nishi, Takumi Mano, Shinichi Yokota, Masayuki Takano, Kazuyoshi Yajima
  • Publication number: 20050069996
    Abstract: The present invention relates to a process for producing reduced coenzyme Q10 which comprises obtaining microbial cells containing reduced coenzyme Q10 at a ratio of not less than 70 mole % among the entire coenzymes Q10, optionally disrupting the cells and recovering thus-produced reduced coenzyme Q10. The present invention also relates to a process for producing oxidized coenzyme Q10 which comprises either recovering oxidized coenzyme Q10 after oxidizing the above-mentioned microbial cells or disrupted product thereof, or recovering reduced coenzyme Q10 from the above-mentioned microbial cells or disrupted product thereof to oxidize thus-obtained reduced coenzyme Q10 thereafter. According to the processes of the present invention, reduced coenzyme Q10 and oxidized coenzyme Q10 can be produced simply on the industrial scale.
    Type: Application
    Filed: December 27, 2002
    Publication date: March 31, 2005
    Inventors: Kazuyoshi Yajima, Takahisa Kato, Akihisa Kanda, Shiro Kitamura, Yasuyoshi Ueda
  • Publication number: 20040234975
    Abstract: The present invention provides a process for producing coenzymes Q10 efficiently in microorganisms by utilizing a coenzymes Q10 side chain synthesis gene from a fungal species belonging to the genus Bulleromyces. The present invention relates to a DNA comprising a base sequence shown under SEQ ID NO:1, a DNA having a base sequence derived from the base sequence shown under SEQ ID NO:1 by deletion, addition, insertion and/or substitution of one or several bases and encoding a protein having decaprenyl diphosphate synthase activity, or a DNA capable of hybridizing with a DNA comprising the base sequence shown under SEQ ID NO:1 under a stringent condition and encoding a protein having decaprenyl diphosphate synthase activity.
    Type: Application
    Filed: April 6, 2004
    Publication date: November 25, 2004
    Inventors: Hideyuki Matsuda, Makoto Kawamukai, Kazuyoshi Yajima