Patents by Inventor Satohiro Yanagisawa

Satohiro Yanagisawa 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: 10035974
    Abstract: The objective of the present invention is to provide a cleaning agent composition which can be used in the open air without any problems since the cleaning agent is environmentally friendly and which is effective for removing a low-molecular-weight and poorly-water-soluble cyclic silicone compound that causes a stain of a silicone sealing. The cleaning agent for washing out a silicone stain according to the present invention is characterized in comprising a cyclic lipopeptide biosurfactant, wherein the specific silicone stain compound such as D4 compound is the objective compound to be removed.
    Type: Grant
    Filed: March 25, 2014
    Date of Patent: July 31, 2018
    Assignees: KANEKA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Koji Noda, Masashi Izumida, Satohiro Yanagisawa, Tohru Nakashima, Takuto Nagano, Toshiaki Taira, Tomohiro Imura, Dai Kitamoto
  • Patent number: 9868097
    Abstract: The objective of the present invention is to provide a method for remarkably reducing a critical micelle concentration of an anionic surfactant, which is used in a large amount currently, to reduce the amount to be used. Also, the objective of the present invention is to provide a surfactant composition of which whole critical micelle concentration is remarkably reduced and in which an amount of an anionic surfactant is reduced in comparison with the case of using an anionic surfactant only as a surfactant. The method for reducing a critical micelle concentration of an anionic surfactant according to the present invention is characterized in using a cyclic lipopeptide biosurfactant in combination with the anionic surfactant.
    Type: Grant
    Filed: March 3, 2015
    Date of Patent: January 16, 2018
    Assignees: KANEKA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Satohiro Yanagisawa, Takuto Nagano, Masashi Izumida, Toshiaki Taira, Tomohiro Imura, Dai Kitamoto
  • Patent number: 9776029
    Abstract: The objective of the present invention is to provide an extinguishing agent which has excellent fire-extinguishing property and which exhibits high safety to the environment and human body. The fire extinguishing agent of the present invention is characterized in comprising a biosurfactant.
    Type: Grant
    Filed: July 23, 2012
    Date of Patent: October 3, 2017
    Assignee: KANEKA CORPORATION
    Inventors: Masashi Izumida, Satohiro Yanagisawa, Yasuyoshi Ueda
  • Publication number: 20160361698
    Abstract: The objective of the present invention is to provide a method for remarkably reducing a critical micelle concentration of an anionic surfactant, which is used in a large amount currently, to reduce the amount to be used. Also, the objective of the present invention is to provide a surfactant composition of which whole critical micelle concentration is remarkably reduced and in which an amount of an anionic surfactant is reduced in comparison with the case of using an anionic surfactant only as a surfactant. The method for reducing a critical micelle concentration of an anionic surfactant according to the present invention is characterized in using a cyclic lipopeptide biosurfactant in combination with the anionic surfactant.
    Type: Application
    Filed: March 3, 2015
    Publication date: December 15, 2016
    Applicants: KANEKA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Satohiro YANAGISAWA, Takuto NAGANO, Masashi IZUMIDA, Toshiaki TAIRA, Tomohiro IMURA, Dai KITAMOTO
  • Publication number: 20160251565
    Abstract: The objective of the present invention is to provide a method for efficiently producing a hydrocarbon fluid from a hydrocarbon fluid-rich shale even under high temperature without giving an excessive load to the environment. The method for producing a hydrocarbon fluid from hydrocarbon fluid-rich shale according to the present invention is characterized in comprising the steps of excavating a horizontal wellbore in a layer of the hydrocarbon fluid-rich shale, injecting a pressurized fracturing fluid into the horizontal wellbore to fracture the hydrocarbon fluid-rich shale, taking out the hydrocarbon fluid onto the ground from the fractured hydrocarbon fluid-rich shale, wherein a biosurfactant-containing solution is used as the fracturing fluid.
    Type: Application
    Filed: November 4, 2014
    Publication date: September 1, 2016
    Applicant: KANEKA CORPORATION
    Inventors: Satohiro YANAGISAWA, Masashi IZUMIDA
  • Publication number: 20160199280
    Abstract: An objective of the present invention is to provide a surfactant composition which hardly causes the formation of an insoluble salt and which contains a safe and extremely stable micelle or vesicle. Also, an objective of the present invention is to provide a hair cosmetic material which contains the surfactant composition. The surfactant composition according to the present invention is characterized in comprising a micelle or a vesicle which contain surfactin and a specific cationic surfactant.
    Type: Application
    Filed: August 11, 2014
    Publication date: July 14, 2016
    Applicants: Kaneka Corporation, National Institute of Advanced Industrial Science and Technology
    Inventors: Satohiro YANAGISAWA, Masashi IZUMIDA, Toshiaki TAIRA, Tomohiro IMURA, Dai KITAMOTO
  • Publication number: 20160193131
    Abstract: An objective of the present invention is to provide a method for reducing surface free energy of an organic solvent and of a mixed solution of water and a water-miscible organic solvent, a composition which has a reduced surface free energy of an organic solvent and of a mixed solution of water and a water-miscible organic solvent and which has high environmental suitability and safety to a living body, and a wet wiper and an antiseptic solution which contains the composition The method for reducing surface free energy of an organic solvent or a mixed solvent of water and a water-miscible solvent according to the present invention is characterized in comprising the step of adding surfactin or a salt thereof to the organic solvent or mixed solvent.
    Type: Application
    Filed: August 11, 2014
    Publication date: July 7, 2016
    Applicants: KANEKA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Satohiro YANAGISAWA, Masashi IZUMIDA, Toshiaki TAIRA, Tomohiro IMURA, Dai KITAMOTO
  • Patent number: 9376547
    Abstract: The objective of the present invention is to provide a method for producing a polymer of a monomer having a vinyl group while reducing a residual amount of a surfactant within the polymer as the target compound and waste water. The method for producing a polymer according to the present invention is characterized in comprising the step of polymerizing a monomer having a vinyl group in an aqueous medium in the presence of a surfactin salt, which is a natural peptide surfactant, and a polymerization initiator, wherein a ratio of the surfactin salt (I) to 100 parts by mass of the monomer is not less than 0.0005 parts by mass and less than 0.1 parts by mass.
    Type: Grant
    Filed: March 12, 2014
    Date of Patent: June 28, 2016
    Assignee: KANEKA CORPORATION
    Inventors: Koji Noda, Ryohei Ishimaru, Satohiro Yanagisawa, Masashi Izumida
  • Publication number: 20160046890
    Abstract: The objective of the present invention is to provide a cleaning agent composition which can be used in the open air without any problems since the cleaning agent is environmentally friendly and which is effective for removing a low-molecular-weight and poorly-water-soluble cyclic silicone compound that causes a stain of a silicone sealing. The cleaning agent for washing out a silicone stain according to the present invention is characterized in comprising a cyclic lipopeptide biosurfactant, wherein the specific silicone stain compound such as D4 compound is the objective compound to be removed.
    Type: Application
    Filed: March 25, 2014
    Publication date: February 18, 2016
    Applicants: KANEKA CORPORATION, NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY
    Inventors: Koji NODA, Masashi IZUMIDA, Satohiro YANAGISAWA, Tohru NAKASHIMA, Takuto NAGANO, Toshiaki TAIRA, Tomohiro IMURA, Dai KITAMOTO
  • Publication number: 20160024275
    Abstract: The objective of the present invention is to provide a method for producing a polymer of a monomer having a vinyl group while reducing a residual amount of a surfactant within the polymer as the target compound and waste water. The method for producing a polymer according to the present invention is characterized in comprising the step of polymerizing a monomer having a vinyl group in an aqueous medium in the presence of a surfactin salt, which is a natural peptide surfactant, and a polymerization initiator, wherein a ratio of the surfactin salt (I) to 100 parts by mass of the monomer is not less than 0.0005 parts by mass and less than 0.1 parts by mass.
    Type: Application
    Filed: March 12, 2014
    Publication date: January 28, 2016
    Applicant: KANEKA CORPORATION
    Inventors: Koji NODA, Ryohei ISHIMARU, Satohiro YANAGISAWA, Masashi IZUMIDA
  • Patent number: 8993800
    Abstract: The present invention provides a simple industrial process for producing an L- or D-optically active ?-methylcysteine derivative or its salt, which is a useful pharmaceutical intermediate, from readily available, inexpensive raw materials. In a process for producing an L- or D-optically active ?-methylcysteine derivative or its salt, a racemic N-carbamoyl-?-methylcysteine derivative or its salt is D-selectively cyclized with hydantoinase to produce a D-5-methyl-5-thiomethylhydantoin derivative or its salt and an N-carbamoyl-?-methyl-L-cysteine derivative or its salt, which are then subjected to deprotection of the amino group and the sulfur atom, and hydrolysis.
    Type: Grant
    Filed: May 17, 2013
    Date of Patent: March 31, 2015
    Assignee: Kaneka Corporation
    Inventors: Takahiro Ohishi, Hirokazu Nanba, Masanobu Sugawara, Masashi Izumida, Tatsuya Honda, Kohei Mori, Satohiro Yanagisawa, Nobuo Nagashima, Kenji Inoue
  • Publication number: 20140290970
    Abstract: The objective of the present invention is to provide an extinguishing agent which has excellent fire-extinguishing property and which exhibits high safety to the environment and human body. The fire extinguishing agent of the present invention is characterized in comprising a biosurfactant.
    Type: Application
    Filed: July 23, 2012
    Publication date: October 2, 2014
    Applicant: KANEKA CORPORATION
    Inventors: Masashi Izumida, Satohiro Yanagisawa, Yasuyoshi Ueda
  • Patent number: 8664373
    Abstract: The present invention provides a low-cost, efficient method for producing a glycolipid biosurfactant, in particular, lactonic sophorose lipids. This method is characterized by culturing a microorganism capable of producing the biosurfactant under limited oxygen supply. The present invention enables preferential production of lactonic sophorose lipids and facilitates recovery of the lactonic sophorose lipids in a solid form. Further, the present invention enables production of high purity acidic sophorose lipids by hydrolyzing high purity lactonic sophorose lipids produced by the above method. The present invention also provides lactonic sophorose lipids that possess strong antibacterial and antifungal activities, and an antibacterial and/or antifungal agent containing the sophorose lipids.
    Type: Grant
    Filed: October 23, 2009
    Date of Patent: March 4, 2014
    Assignee: Kaneka Corporation
    Inventors: Satohiro Yanagisawa, Shigeru Kawano, Yoshihiko Yasohara
  • Publication number: 20130261331
    Abstract: The present invention provides a simple industrial process for producing an L- or D-optically active ?-methylcysteine derivative or its salt, which is a useful pharmaceutical intermediate, from readily available, inexpensive raw materials. In a process for producing an L- or D-optically active ?-methylcysteine derivative or its salt, a racemic N-carbamoyl-?-methylcysteine derivative or its salt is D-selectively cyclized with hydantoinase to produce a D-5-methyl-5-thiomethylhydantoin derivative or its salt and an N-carbamoyl-?-methyl-L-cysteine derivative or its salt, which are then subjected to deprotection of the amino group and the sulfur atom, and hydrolysis.
    Type: Application
    Filed: May 17, 2013
    Publication date: October 3, 2013
    Inventors: Takahiro Ohishi, Hirokazu Nanba, Masanobu Sugawara, Masashi Izumida, Tatsuya Honda, Kohei Mori, Satohiro Yanagisawa, Nabuo Nagashima, Kenji Inoue
  • Publication number: 20110237531
    Abstract: The present invention provides a low-cost, efficient method for producing a glycolipid biosurfactant, in particular, lactonic sophorose lipids. This method is characterized by culturing a microorganism capable of producing the biosurfactant under limited oxygen supply. The present invention enables preferential production of lactonic sophorose lipids and facilitates recovery of the lactonic sophorose lipids in a solid form. Further, the present invention enables production of high purity acidic sophorose lipids by hydrolyzing high purity lactonic sophorose lipids produced by the above method. The present invention also provides lactonic sophorose lipids that possess strong antibacterial and antifungal activities, and an antibacterial and/or antifungal agent containing the sophorose lipids.
    Type: Application
    Filed: October 23, 2009
    Publication date: September 29, 2011
    Applicant: KANEKA CORPORATION
    Inventors: Satohiro Yanagisawa, Shigeru Kawano, Yoshihiko Yasohara
  • Publication number: 20100197934
    Abstract: The present invention provides a simple industrial process for producing an L- or D-optically active ?-methylcysteine derivative or its salt, which is a useful pharmaceutical intermediate, from readily available, inexpensive raw materials. In a process for producing an L- or D-optically active ?-methylcysteine derivative or its salt, a racemic N-carbamoyl-?-methylcysteine derivative or its salt is D-selectively cyclized with hydantoinase to produce a D-5-methyl-5-thiomethylhydantoin derivative or its salt and an N-carbamoyl-?-methyl-L-cysteine derivative or its salt, which are then subjected to deprotection of the amino group and the sulfur atom, and hydrolysis.
    Type: Application
    Filed: April 9, 2010
    Publication date: August 5, 2010
    Applicant: KANEKA CORPORATION
    Inventors: Takahiro Ohishi, Hirokazu Nanba, Masanobu Sugawara, Masashi Izumida, Tatsuya Honda, Kohei Mori, Satohiro Yanagisawa, Nobuo Nagashima, Kenji Inoue
  • Patent number: 7709235
    Abstract: Disclosed are a novel hydantoin racemase and a process for producing an optically active N-carbamylamino acid or an optically active amino acid using the hydantoin racemase. A novel hydantoin racemase isolated and purified from Bacillus sp. Strain KNK519HR; a gene encoding the hydantoin racemase; a recombinant plasmid having the gene introduced therein; a transformant having the hydantoin racemase gene introduced therein; and a process for producing an optically active N-carbamylamino acid or an optically active amino acid characterized in that a 5-substituted hydantoin compound is treated in the presence of hydantoinase and N-carbamylamino acid amidohydrolase as well as the hydantoin racemase.
    Type: Grant
    Filed: January 26, 2006
    Date of Patent: May 4, 2010
    Assignee: Kaneka Corporation
    Inventors: Kenichi Nishi, Satohiro Yanagisawa, Hirokazu Nanba, Makoto Ueda, Naoto Noro
  • Patent number: 7655450
    Abstract: It is an object of the present invention to provide a novel amidase that is useful for production of an optically active amino acid, and in particular, a D-amino acid, and a production method thereof. The present invention relates to a novel D-amidase isolated and purified from the Arthrobacter sp. KNK1101J, a gene encoding the above amidase, a recombinant plasmid comprising the above gene, and a transformant into which the above amidase gene has been introduced. In addition, the present invention also relates to a method for producing the amidase, comprising culturing the Arthrobacter sp. KNK1101J or the above transformant, and collecting the above amidase.
    Type: Grant
    Filed: January 26, 2005
    Date of Patent: February 2, 2010
    Assignee: Kaneka Corporation
    Inventors: Satohiro Yanagisawa, Makoto Ueda, Hirokazu Nanba
  • Publication number: 20090136994
    Abstract: It is an object of the present invention to provide a novel amidase that is useful for production of an optically active amino acid, and in particular, a D-amino acid, and a production method thereof. The present invention relates to a novel D-amidase isolated and purified from the Arthrobacter sp. KNK1101J, a gene encoding the above amidase, a recombinant plasmid comprising the above gene, and a transformant into which the above amidase gene has been introduced. In addition, the present invention also relates to a method for producing the amidase, comprising culturing the Arthrobacter sp. KNK1101J or the above transformant, and collecting the above amidase.
    Type: Application
    Filed: January 26, 2005
    Publication date: May 28, 2009
    Inventors: Satohiro Yanagisawa, Makoto Ueda, Hirokazu Nanba
  • Publication number: 20080261268
    Abstract: Disclosed are a novel hydantoin racemase and a process for producing an optically active N-carbamylamino acid or an optically active amino acid using the hydantoin racemase. A novel hydantoin racemase isolated and purified from Bacillus sp. Strain KNK519HR; a gene encoding the hydantoin racemase; a recombinant plasmid having the gene introduced therein; a transformant having the hydantoin racemase gene introduced therein; and a process for producing an optically active N-carbamylamino acid or an optically active amino acid characterized in that a 5-substituted hydantoin compound is treated in the presence of hydantoinase and N-carbamylamino acid amidohydrolase as well as the hydantoin racemase.
    Type: Application
    Filed: January 26, 2006
    Publication date: October 23, 2008
    Applicant: KANEKA CORPORATION
    Inventors: Kenichi Nishi, Satohiro Yanagisawa, Hirokazu Nanba, Makoto Ueda, Naoto Noro