Patents by Inventor Yasuharu Satoh
Yasuharu Satoh 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).
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Publication number: 20230235271Abstract: An object of the present invention is to provide a microorganism that efficiently produces EPA and a method for producing EPA using the microorganism. The present invention relates to a microorganism having an ability to produce docosahexaenoic acid (DHA), wherein the microorganism contains a protein composed of an amino acid sequence in which at least one of the amino acid residues at positions 6, 65, 230, 231, and 275 in the amino acid sequence represented by SEQ ID NO: 2 has been substituted with another amino acid residue (mutated OrfB), and is capable of producing eicosapentaenoic acid (EPA), and the like.Type: ApplicationFiled: February 15, 2023Publication date: July 27, 2023Applicant: KYOWA HAKKO BIO CO., LTD.Inventors: Tohru DAIRI, Yasuharu SATOH, Shohei HAYASHI, Mai NAKA, Tetsuro UJIHARA
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Patent number: 11613728Abstract: An object of the present invention is to provide a microorganism that efficiently produces EPA and a method for producing EPA using the microorganism. The present invention relates to a microorganism having an ability to produce docosahexaenoic acid (DHA), wherein the microorganism contains a protein composed of an amino acid sequence in which at least one of the amino acid residues at positions 6, 65, 230, 231, and 275 in the amino acid sequence represented by SEQ ID NO: 2 has been substituted with another amino acid residue (mutated OrfB), and is capable of producing eicosapentaenoic acid (EPA), and the like.Type: GrantFiled: August 9, 2019Date of Patent: March 28, 2023Assignee: KYOWA HAKKO BIO CO., LTD.Inventors: Tohru Dairi, Yasuharu Satoh, Shohei Hayashi, Mai Naka, Tetsuro Ujihara
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Publication number: 20210309987Abstract: An object of the present invention is to provide a microorganism that efficiently produces a PUFA and a method for producing a PUFA using the microorganism. The present invention relates to a microorganism capable of producing a polyunsaturated fatty acid (PUFA), in which a gene encoding an exogenous polyketide synthase dehydratase (PS-DH) domain having a higher activity against 3-hydroxyhexanoyl acyl carrier protein (3-hydroxyhexanoyl ACP) than an endogenous FabA-like ?-hydroxyacyl-ACP dehydratase (FabA-DH) domain has been introduced into a microorganism having a PUFA metabolic pathway, and the like.Type: ApplicationFiled: August 9, 2019Publication date: October 7, 2021Applicant: KYOWA HAKKO BIO CO., LTD.Inventors: Tohru DAIRI, Yasuharu SATOH, Shohei HAYASHI, Yasushi OGASAWARA, Tetsuro UJIHARA
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Publication number: 20210309960Abstract: An object of the present invention is to provide a microorganism that efficiently produces EPA and a method for producing EPA using the microorganism. The present invention relates to a microorganism having an ability to produce docosahexaenoic acid (DHA), wherein the microorganism contains a protein composed of an amino acid sequence in which at least one of the amino acid residues at positions 6, 65, 230, 231, and 275 in the amino acid sequence represented by SEQ ID NO: 2 has been substituted with another amino acid residue (mutated OrfB), and is capable of producing eicosapentaenoic acid (EPA), and the like.Type: ApplicationFiled: August 9, 2019Publication date: October 7, 2021Applicant: KYOWA HAKKO BIO CO., LTD.Inventors: Tohru DAIRI, Yasuharu SATOH, Shohei HAYASHI, Mai NAKA, Tetsuro UJIHARA
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Patent number: 10597685Abstract: The present invention provides for a method of producing an oxidation product of an aromatic amino acid in a genetically modified host cell. The method comprises culturing the genetically modified host cell under a suitable condition such that the culturing results in the genetically modified host cell producing oxidation product of an aromatic amino acid. The host cell comprises an enzyme capable of catalyzing the oxidation of aromatic amino acid. In some embodiments, the host cell is capable of biosynthesizing BH4 or MH4 from GTP.Type: GrantFiled: September 30, 2013Date of Patent: March 24, 2020Assignee: The Regents of the University of CaliforniaInventors: Taek Soon Lee, Yasuharu Satoh, Jay D. Keasling
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Publication number: 20140134689Abstract: The present invention provides for a method of producing an oxidation product of an aromatic amino acid in a genetically modified host cell. The method comprises culturing the genetically modified host cell under a suitable condition such that the culturing results in the genetically modified host cell producing oxidation product of an aromatic amino acid. The host cell comprises an enzyme capable of catalyzing the oxidation of aromatic amino acid. In some embodiments, the host cell is capable of biosynthesizing BH4 or MH4 from GTP.Type: ApplicationFiled: September 30, 2013Publication date: May 15, 2014Applicant: The Regents of the University of CaliforniaInventors: Taek Soon Lee, Yasuharu Satoh, Jay D. Keasling
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Patent number: 8563281Abstract: The object of the present invention is to provide a method for efficiently producing a polyester copolymer consisting of 3-hydroxybutyrate and lactate via microbial fermentation with the use of a sugar as a starting material. The method may comprise culturing a recombinant microorganism expressing: a protein capable of catalyzing the transfer of CoA to propionic acid and/or lactate; a protein capable of catalyzing the formation of acetoacetyl-CoA from two acetyl-CoA molecules; a protein capable of catalyzing acetoacetyl-CoA reduction; and a protein capable of catalyzing polyhydroxyalkanoate synthesis. According to the production method, a polyester copolymer consisting of 3-hydroxybutyrate and lactate can be efficiently produced using an inexpensive carbon source as a starting material, and thus the production cost of a biodegradable plastic can be reduced.Type: GrantFiled: April 23, 2009Date of Patent: October 22, 2013Assignee: Toyota Jidosha Kabushiki KaishaInventors: Seiichi Taguchi, Kenji Tajima, Yasuharu Satoh, Ken'ichiro Matsumoto, Miwa Yamada, Shusei Obata, Hiromi Kambe, Katsunori Kohda, Katsuhiro Ohno, Takashi Shimamura
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Patent number: 8445628Abstract: Disclosed is a copolymer resin composition including a lactic acid copolymer, the lactic acid copolymer containing monomer units represented by the following chemical formulas [1], [2], and [3], wherein a content of a monomer unit represented by the chemical formula [3] is 50 mol % or more and 95 mol % or less, a weight-average molecular weight of the lactic acid copolymer is 20,000 or more and 1,000,000 or less, and a deflection temperature of the lactic acid copolymer under load is 65° C. or higher and 100° C. or lower at a bending stress of 1.80 MPa.Type: GrantFiled: June 30, 2010Date of Patent: May 21, 2013Assignee: Ricoh Company, Ltd.Inventors: Yasuo Yamanaka, Tadakatsu Harada, Hidekazu Yaginuma, Masanobu Munekata, Kenji Tajima, Yasuharu Satoh, Tokuo Matsushima
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Publication number: 20110104768Abstract: The object of the present invention is to provide a method for efficiently producing a polyester copolymer consisting of 3HB and LA via microbial fermentation with the use of a sugar as a starting material.Type: ApplicationFiled: April 23, 2009Publication date: May 5, 2011Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Seiichi Taguchi, Kenji Tajima, Yasuharu Satoh, Ken'ichiro Matsumoto, Miwa Yamada, Shusei Obata, Hiromi Kambe, Katsuhiro Kohda, Katsuhiro Ohno, Takashi Shimamura
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Publication number: 20110003919Abstract: Disclosed is a copolymer resin composition including a lactic acid copolymer, the lactic acid copolymer containing monomer units represented by the following chemical formulas [1], [2], and [3], wherein a content of a monomer unit represented by the chemical formula [3] is 50 mol % or more and 95 mol % or less, a weight-average molecular weight of the lactic acid copolymer is 20,000 or more and 1,000,000 or less, and a deflection temperature of the lactic acid copolymer under load is 65° C. or higher and 100° C. or lower at a bending stress of 1.80 MPa.Type: ApplicationFiled: June 30, 2010Publication date: January 6, 2011Applicants: RICOH COMPANY, LTD., AGRI BIO INDUSTRY INCORPORATED, NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Yasuo YAMANAKA, Tadakatsu Harada, Hidekazu Yaginuma, Masanobu Munekata, Kenji Tajima, Yasuharu Satoh, Tokuo Matsushima
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Patent number: 6097658Abstract: A DRAM (Dynamic Random Access Memory) having a plurality of memory cells includes a data read/write circuit reading or writing data for the memory cells, a self-refresh circuit refreshing data stored in the memory cells, and a power supply unit for supplying electric power to the data read/write circuit and the self-refresh circuit, the electric power having a first voltage level in a normal operation mode and a second voltage level in a self-refresh mode, wherein the second voltage level is lower than the first voltage level.Type: GrantFiled: November 10, 1998Date of Patent: August 1, 2000Assignees: Fujitsu Limited, Fujitsu VLSI LimitedInventors: Yasuharu Satoh, Yoshihiro Takemae, Takaaki Furuyama, Mitsuhiro Nagao, Masahiro Niimi
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Patent number: 5867438Abstract: A DRAM (dynamic Random Access Memory) having a plurality of memory cells includes a data read/write circuit reading or writing data for the memory cells, a self-refresh circuit refreshing data stored in the memory cells, and a power supply unit for supplying electric power to the data read/write circuit and the self-refresh circuit, the electric power having a first voltage level in a normal operation mode and a second voltage level in a self-refresh mode, wherein the second voltage level is lower than the first voltage level.Type: GrantFiled: October 4, 1996Date of Patent: February 2, 1999Assignees: Fujitsu Limited, Fujitsu VLSI LimitedInventors: Yukihiro Nomura, Yasuharu Satoh, Yoshihiro Takemae, Takaaki Furuyama, Mitsuhiro Nagao, Masahiro Niimi
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Patent number: 5594699Abstract: A DRAM (Dynamic Random Access Memory) having a plurality of memory cells includes a data read/write circuit reading or writing data for the memory cells, a self-refresh circuit refreshing data stored in the memory cells, and a power supply unit for supplying electric power to the data read/write circuit and the self-refresh circuit, the electric power having a first voltage level in a normal operation mode and a second voltage level in a self-refresh mode, wherein the second voltage level is lower than the first voltage level.Type: GrantFiled: September 16, 1994Date of Patent: January 14, 1997Assignees: Fujitsu Limited, Fujitsu Vlsi LimitedInventors: Yukihiro Nomura, Yasuharu Satoh, Yoshihiro Takemae, Takaaki Furuyama, Mitsuhiro Nagao, Masahiro Niimi