Patents by Inventor Katsuya Ozaki

Katsuya Ozaki 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: 20140170703
    Abstract: A recombinant microorganism obtained by transferring, into a host microorganism capable of producing protein or polypeptide with increased productivity, a gene encoding a protein or polypeptide, and a method for producing a protein or polypeptide by use of the recombinant microorganism. The recombinant microorganism is prepared by transferring, to a mutant strain of microorganism from which any of Bacillus subtilis genes comA, yopO, treR, yvbA, cspB, yvaN, yttP, yurK, yozA, licR, sigL, mntR, glcT, yvdE, ykvE, slr, rocR, ccpA, yaaT, yyaA, yycH, yacP, hprK, rsiX, yhdK, and ylbO, or one or more genes functionally equivalent to any of these genes have been deleted or knocked out, a gene encoding a heterologous protein or polypeptide.
    Type: Application
    Filed: November 25, 2013
    Publication date: June 19, 2014
    Applicant: KAO CORPORATION
    Inventors: MASATOSHI TOHATA, KAZUHISA SAWADA, KATSUYA OZAKI, KAZUO KOBAYASHI, NAOTAKE OGASAWARA
  • Patent number: 8623631
    Abstract: The present invention provides a modified promoter DNA capable of enhancing transcription of genes encoding proteins or polypeptides, and a method for producing proteins or polypeptides efficiently by use of the modified promoter DNA. A promoter DNA recognized by SigA and SigE, which is produced by modifying a nucleotide sequence including a promoter recognized by SigA and bases in the vicinity thereof; an expression vector harboring the promoter DNA; a recombinant microorganism containing the expression vector; and a method for producing proteins or polypeptides characterized by culturing the recombinant microorganism.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: January 7, 2014
    Assignee: Kao Corporation
    Inventors: Keiji Endo, Katsuya Ozaki
  • Patent number: 7855065
    Abstract: The present invention provides a mutant Bacillus bacterium capable of enhancing productivity of proteins or polypeptides, a recombinant microorganism produced by introducing genes encoding heterologous proteins or polypeptides into the mutant Bacillus bacterium, and a method for producing proteins or polypeptides by use of the recombinant microorganism. A mutant Bacillus bacterium which has, on the genome or plasmid thereof, DNA having a promoter sequence which is recognized and transcribed specifically during the sporulation stage and which is ligated to an upstream end of a sigA gene or a gene equivalent thereto, a recombinant microorganism produced by introducing genes encoding heterologous proteins or polypeptides into the mutant Bacillus bacterium, and a method for producing proteins or polypeptides by use of the recombinant microorganism.
    Type: Grant
    Filed: March 4, 2005
    Date of Patent: December 21, 2010
    Assignee: Kao Corporation
    Inventors: Keiji Endo, Katsuya Ozaki
  • Patent number: 7829322
    Abstract: A host microorganism capable of increasing productivity of a protein or polypeptide, a recombinant microorganism obtained by introducing a gene encoding a protein or polypeptide into the host microorganism, and a method for producing a protein or polypeptide using the recombinant microorganism are provided. Also provided is a recombinant microorganism obtained by introducing into a host microorganism a gene encoding a heterologous protein or polypeptide, wherein in said host microorganism the Bacillus subtilis aprX gene or a gene corresponding to the aprX gene has been deleted or knocked out, and a method for producing a protein or polypeptide using the recombinant microorganism.
    Type: Grant
    Filed: December 20, 2005
    Date of Patent: November 9, 2010
    Assignees: Kao Corporation, Shinshu University
    Inventors: Takeko Kodama, Keiji Endo, Katsuya Ozaki, Junichi Sekiguchi
  • Publication number: 20090226961
    Abstract: The invention relates to a mutant ?-amylase obtained by making replacement or deletion of at least one of amino acid residues such as the 167th Gln, 169th Tyr and 178th Ala in the amino acid sequence set forth in SEQ ID NO:1 in an ?-amylase having said amino acid sequence, or an ?-amylase having a homology of at least 70% to said amino acid sequence, a gene encoding the mutant ?-amylase, a vector, transformed cells, a process for producing a mutant ?-amylase, comprising culturing the transformed cells, and a detergent composition comprising the mutant ?-amylase. The mutant ?-amylase of the invention has excellent properties of high resistance to chelating agents, high specific activity in an alkaline region and excellent stability to heat, and is hence useful for detergents for automatic dish washer, laundry detergents and the like.
    Type: Application
    Filed: September 28, 2007
    Publication date: September 10, 2009
    Inventors: Keiji Endo, Kazuaki Igarashi, Yasuhiro Hayashi, Hiroshi Hagihara, Katsuya Ozaki
  • Patent number: 7585674
    Abstract: A microorganism wherein one or more genes selected from the group of genes participating in sporulation in the middle to late stages of sporulation have been deleted or inactivated; and a process for producing a target product (a protein) by use the microorganism. No spore is formed when this microorganism is employed, thereby enabling production of a target product (a protein) while decreasing energy loss, production of a by-product and specific production speed to decrease unnecessary consumption of a medium. Moreover, the production period can be prolonged, whereby the target product (the protein) can be produced efficiently.
    Type: Grant
    Filed: May 28, 2002
    Date of Patent: September 8, 2009
    Assignee: Kao Corporation
    Inventors: Kazuhisa Sawada, Keiji Endo, Tadahiro Ozawa, Masatoshi Tohata, Katsuya Ozaki
  • Patent number: 7563611
    Abstract: The present invention provides a recombinant microorganism obtained by transferring, into a host microorganism which is capable of producing protein or polypeptide with increased productivity and which was identified by the present inventors, a gene encoding a protein or polypeptide, and a method for producing a protein or polypeptide by use of the recombinant microorganism.
    Type: Grant
    Filed: November 5, 2004
    Date of Patent: July 21, 2009
    Assignee: Kao Corporation
    Inventors: Masatoshi Tohata, Kazuhisa Sawada, Katsuya Ozaki, Junichi Sekiguchi
  • Publication number: 20090170154
    Abstract: The present invention provides a mutant Bacillus bacterium capable of enhancing productivity of proteins or polypeptides, a recombinant microorganism produced by introducing genes encoding heterologous proteins or polypeptides into the mutant Bacillus bacterium, and a method for producing proteins or polypeptides by use of the recombinant microorganism. A mutant Bacillus bacterium which has, on the genome or plasmid thereof, DNA having a promoter sequence which is recognized and transcribed specifically during the sporulation stage and which is ligated to an upstream end of a sigA gene or a gene equivalent thereto, a recombinant microorganism produced by introducing genes encoding heterologous proteins or polypeptides into the mutant Bacillus bacterium, and a method for producing proteins or polypeptides by use of the recombinant microorganism.
    Type: Application
    Filed: March 4, 2005
    Publication date: July 2, 2009
    Applicant: KAO CORPORATION
    Inventors: Keiji Endo, Katsuya Ozaki
  • Publication number: 20090081726
    Abstract: A host microorganism capable of increasing productivity of a protein or polypeptide, a recombinant microorganism obtained by introducing a gene encoding a protein or polypeptide into the host microorganism, and a method for producing a protein or polypeptide using the recombinant microorganism are provided. Also provided is a recombinant microorganism obtained by introducing into a host microorganism a gene encoding a heterologous protein or polypeptide, wherein in said host microorganism the Bacillus subtilis aprX gene or a gene corresponding to the aprX gene has been deleted or knocked out, and a method for producing a protein or polypeptide using the recombinant microorganism.
    Type: Application
    Filed: December 20, 2005
    Publication date: March 26, 2009
    Inventors: Takeko Kodama, Keiji Endo, Katsuya Ozaki, Junichi Sekiguchi
  • Publication number: 20080081352
    Abstract: The present invention provides a recombinant microorganism obtained by transferring, into a host microorganism which is capable of producing protein or polypeptide with increased productivity and which was identified by the present inventors, a gene encoding a protein or polypeptide, and a method for producing a protein or polypeptide by use of the recombinant microorganism. The recombinant microorganism is prepared by transferring, to a mutant strain of microorganism from which any of at least one gene participating in membrane permeation of maltose has been deleted or knocked out, a gene encoding a heterologous protein or polypeptide.
    Type: Application
    Filed: November 5, 2004
    Publication date: April 3, 2008
    Applicant: Kao Corporation
    Inventors: Masatoshi Tohata, Kazuhisa Sawada, Katsuya Ozaki, Junichi Sekiguchi
  • Publication number: 20080050807
    Abstract: The present invention provides a DNA fragment encoding alkaline liquefying ?-amylase, recombinant DNA containing the DNA fragment, a transformed microorganism harboring the recombinant DNA, as well as a method for producing alkaline liquefying ?-amylase using the transformant. The method of the present invention enables mass production of alkaline liquefying ?-amylase useful as a detergent component. The present invention is directed to a liquefying alkaline alph?-amylase, and a DNA encoding for the same and functional fragments thereof.
    Type: Application
    Filed: April 22, 2004
    Publication date: February 28, 2008
    Inventors: Yuji Hatada, Katsuya Ozaki, Katsutoshi Ara, Shuji Kawai, Susumu Ito
  • Publication number: 20080026976
    Abstract: The invention relates to mutant ?-amylases that may be produced at high yield from recombinant microorganisms.
    Type: Application
    Filed: November 1, 2006
    Publication date: January 31, 2008
    Applicant: Kao Corporation
    Inventors: Hiroyuki Araki, Keiji Endo, Hiroshi Hagihara, Kazuaki Igarashi, Yasuhiro Hayashi, Katsuya Ozaki
  • Publication number: 20080014608
    Abstract: The present invention provides a modified promoter DNA capable of enhancing transcription of genes encoding proteins or polypeptides, and a method for producing proteins or polypeptides efficiently by use of the modified promoter DNA. A promoter DNA recognized by SigA and SigE, which is produced by modifying a nucleotide sequence including a promoter recognized by SigA and bases in the vicinity thereof; an expression vector harboring the promoter DNA; a recombinant microorganism containing the expression vector; and a method for producing proteins or polypeptides characterized by culturing the recombinant microorganism.
    Type: Application
    Filed: March 4, 2005
    Publication date: January 17, 2008
    Applicant: KAO CORPORATION
    Inventors: Keiji Endo, Katsuya Ozaki
  • Publication number: 20080009039
    Abstract: A recombinant microorganism obtained by transferring, into a host microorganism capable of producing protein or polypeptide with increased productivity, a gene encoding a protein or polypeptide, and a method for producing a protein or polypeptide by use of the recombinant microorganism. The recombinant microorganism is prepared by transferring, to a mutant strain of microorganism from which any of Bacillus subtilis genes comA, yopO, treR, yvbA, cspB, yvaN, yttP, yurK, yozA, licR, sigL, mntR, glcT, yvdE, ykvE, sir, rocR, ccpA, yaaT, yyaA, yycH, yacP, hprK, rsiX, yhdK, and yibO, or one or more genes functionally equivalent to any of these genes have been deleted or knocked out, a gene encoding a heterologous protein or polypeptide.
    Type: Application
    Filed: November 5, 2004
    Publication date: January 10, 2008
    Applicant: Kao Corporation
    Inventors: Masatoshi Tohata, Kazuhisa Sawada, Katsuya Ozaki, Kazuo Kobayashi, Naotake Ogasawara
  • Patent number: 7297527
    Abstract: The invention relates to mutant ?-amylases that may be produced at high yield from recombinant microorganisms.
    Type: Grant
    Filed: March 12, 2004
    Date of Patent: November 20, 2007
    Assignee: Kao Corporation
    Inventors: Hiroyuki Araki, Keiji Endo, Hiroshi Hagihara, Kazuaki Igarashi, Yasuhiro Hayashi, Katsuya Ozaki
  • Patent number: 7078212
    Abstract: The invention relates to a mutant ?-amylase obtained by making replacement or deletion of at least one of amino acid residues such as the 167th Gln, 169th Tyr and 178th Ala in the amino acid sequence set forth in SEQ ID NO:1 in an ?-amylase having said amino acid sequence, or an ?-amylase having a homology of at least 70% to said amino acid sequence, a gene encoding the mutant ?-amylase, a vector, transformed cells, a process for producing a mutant ?-amylase, comprising culturing the transformed cells, and a detergent composition comprising the mutant ?-amylase. The mutant ?-amylase of the invention has excellent properties of high resistance to chelating agents, high specific activity in an alkaline region and excellent stability to heat, and is hence useful for detergents for automatic dish washer, laundry detergents and the like.
    Type: Grant
    Filed: June 9, 2000
    Date of Patent: July 18, 2006
    Assignee: Kao Corporation
    Inventors: Keiji Endo, Kazuaki Igarashi, Yasuhiro Hayashi, Hiroshi Hagihara, Katsuya Ozaki
  • Patent number: 6979731
    Abstract: The present invention is directed to a liquefying alkaline alpha-amylase, and a DNA encoding for the same and functional fragments thereof.
    Type: Grant
    Filed: June 14, 1996
    Date of Patent: December 27, 2005
    Assignee: Kao Corporation
    Inventors: Yuji Hatada, Katsuya Ozaki, Katsutoshi Ara, Shuji Kawai, Susumu Ito
  • Publication number: 20050181493
    Abstract: The invention relates to a mutant ?-amylase obtained by making replacement or deletion of at least one of amino acid residues such as the 167th Gln, 169th Tyr and 178th Ala in the amino acid sequence set forth in SEQ ID NO:1 in an ?-amylase having said amino acid sequence, or an ?-amylase having a homology of at least 70% to said amino acid sequence, a gene encoding the mutant ?-amylase, a vector, transformed cells, a process for producing a mutant ?-amylase, comprising culturing the transformed cells, and a detergent composition comprising the mutant ?-amylase. The mutant ?-amylase of the invention has excellent properties of high resistance to chelating agents, high specific activity in an alkaline region and excellent stability to heat, and is hence useful for detergents for automatic dish washer, laundry detergents and the like.
    Type: Application
    Filed: November 16, 2004
    Publication date: August 18, 2005
    Inventors: Keiji Endo, Kazuaki Igarashi, Yasuhiro Hayashi, Hiroshi Hagihara, Katsuya Ozaki
  • Patent number: 6916645
    Abstract: Liquefying alkaline amylases, each having residual activity not less than 70% when treated at pH 10 and 45° C. for 30 minutes in the presence of 1 to 100 mM of EDTA or EGTA, are described. Also described are detergents comprising these amylases. In comparison with conventional amylases for detergents, the liquefying alkaline amylases of this invention have a high chelating-agent resisting performance.
    Type: Grant
    Filed: May 2, 2002
    Date of Patent: July 12, 2005
    Assignee: Kao Corporation
    Inventors: Hiroshi Hagihara, Kaori Kitayama, Yasuhiro Hayashi, Kazuaki Igarashi, Keiji Endo, Katsuya Ozaki
  • Publication number: 20040265959
    Abstract: The invention relates to mutant &agr;-amylases that may be produced at high yield from recombinant microorganisms.
    Type: Application
    Filed: March 12, 2004
    Publication date: December 30, 2004
    Applicant: Kao Corporation
    Inventors: Hiroyuki Araki, Keiji Endo, Hiroshi Hagihara, Kazuaki Igarashi, Yasuhiro Hayashi, Katsuya Ozaki