Patents by Inventor Seiichi Taguchi
Seiichi Taguchi 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: 20210340372Abstract: Provided is a resin composition containing polylactic acid and a polyester copolymer of lactic acid and another hydroxycarboxylic acid. The other hydroxycarboxylic acid may be 3-hydroxybutanoic acid, 3-hydroxypentanoic acid, 3-hydroxyhexanoic acid, 3-hydroxyheptanoic acid, 3-hydroxyoctanoic acid, 3-hydroxynonanoic acid, 3-hydroxydecanoic acid 3-hydroxydodecanoic acid, 3-hydroxytetradecanoic acid, 3-hydroxypentadecanoic acid, or 3-hydroxyhexadecanoic acid.Type: ApplicationFiled: September 13, 2019Publication date: November 4, 2021Applicants: KANEKA CORPORATION, TOKYO UNIVERSITY OF AGRICULTUREInventors: Shunsuke SATO, Tomoaki HASHIGUCHI, Seiichi TAGUCHI
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Publication number: 20180163236Abstract: Provided is a bacterial strain having a mutation in the gene that codes for monofunctional peptidoglycan transglycosylase (MtgA), wherein the mutation inactivates MtgA or reduces the activity of MtgA in comparison to a control strain lacking the mutation.Type: ApplicationFiled: May 26, 2016Publication date: June 14, 2018Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Seiichi TAGUCHI, Ryosuke KADOYA
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Patent number: 9434965Abstract: The present invention relates to a method of producing organic acids, comprising biochemical synthesis of organic acid-CoA using acetyl-CoA as a substrate and conducting CoA elimination reaction of the organic acid-CoA using CoA transferase in the presence of acetic acid, in which organic acid is obtained by culturing transformed microorganisms which have an enzyme gene cluster for the synthesis of organic acid-CoA using acetyl-CoA as a substrate and a CoA transferase gene.Type: GrantFiled: October 10, 2012Date of Patent: September 6, 2016Assignees: SHOWA DENKO K.K., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITYInventors: Ken'ichiro Matsumoto, Seiichi Taguchi, Hirobumi Aoki
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Patent number: 9062291Abstract: A transglutaminase protein which is mutated to have improved heat resistance and/or pH stability. A mutation is introduced into WT transglutaminase at a cysteine residue capable of forming a disulfide bond (SS bond).Type: GrantFiled: August 14, 2009Date of Patent: June 23, 2015Assignee: AJINOMOTO CO., INC.Inventors: Keiichi Yokoyama, Mototaka Suzuki, Tatsuki Kashiwagi, Eiichiro Suzuki, Masayo Date, Seiichi Taguchi
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Publication number: 20140234927Abstract: The present invention relates to a method of producing organic acids, comprising biochemical synthesis of organic acid-CoA using acetyl-CoA as a substrate and conducting CoA elimination reaction of the organic acid-CoA using CoA transferase in the presence of acetic acid, in which organic acid is obtained by culturing transformed microorganisms which have an enzyme gene cluster for the synthesis of organic acid-CoA using acetyl-CoA as a substrate and a CoA transferase gene.Type: ApplicationFiled: October 10, 2012Publication date: August 21, 2014Applicant: SHOWA DENKO K.K.Inventors: Ken'ichiro Matsumoto, Seiichi Taguchi, Hirobumi Aoki
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Patent number: 8748137Abstract: It is an object of the present invention to provide a method for efficiently producing a polylactate via microbial fermentation with the use of a sugar as a starting material.Type: GrantFiled: October 27, 2009Date of Patent: June 10, 2014Assignee: Toyota Jidosha Kabushiki KaishaInventors: Shusei Obata, Hiromi Kambe, Masakazu Ito, Takashi Shimamura, Katsunori Kohda, Seiichi Taguchi
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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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Publication number: 20110212497Abstract: It is an object of the present invention to provide a method for efficiently producing a polylactate via microbial fermentation with the use of a sugar as a starting material.Type: ApplicationFiled: October 27, 2009Publication date: September 1, 2011Applicants: National University Corporation Hokkaido University, Toyota Jidosha Kabushiki KaishaInventors: Shusei Obata, Hiromi Kambe, Masakazu Ito, Takashi Shimamura, Katsunori Kohda, Seiichi Taguchi
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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: 20100143970Abstract: A transglutaminase protein which is mutated to have improved heat resistance and/or pH stability. A mutation is introduced into WT transglutaminase at a cysteine residue capable of forming a disulfide bond (SS bond).Type: ApplicationFiled: August 14, 2009Publication date: June 10, 2010Inventors: Keiichi Yokoyama, Mototaka Suzuki, Tatsuki Kashiwagi, Eiichiro Suzuki, Masayo Date, Seiichi Taguchi
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Publication number: 20090226988Abstract: A method for producing a polymer including a chemical thioester exchange reaction for forming an acetyl-CoA by reacting an acetyl-thioester with CoA, a monomer-producing reaction for forming a (monomer precursor)-CoA derivative by reacting at least one monomer precursor compound with the acetyl-CoA and a polymerization reaction for forming the polymer comprising units of the monomer by polymerizing the (monomer precursor)-CoA derivative.Type: ApplicationFiled: November 13, 2008Publication date: September 10, 2009Inventors: Kenji Tajima, Yasuharu Satou, Masanobu Munekata, Seiichi Taguchi, Tokuo Matsushima
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Patent number: 7456002Abstract: Biodegradable polyester with desired physical properties. A mutant poly(3-hydroxyalkanoic acid) synthase comprising an amino acid sequence of (a) or (b) below. (a) A mutant amino acid sequence derived from SEQ ID No. 1, wherein at least one amino acid selected from the group consisting of glutamic acid at position 130, serine at position 325, serine at position 477 and glutamine at position 481 is substituted by another amino acid. (b) A mutant amino acid sequence derived from SEQ ID No. 1 wherein at least one amino acid selected from the group consisting of glutamic acid at position 130, serine at position 325, serine at position 477 and glutamine at position 481 is substituted by another amino acid, wherein at least one amino acid other than the amino acids at positions 130, 325, 477 and 481 is deleted, substituted and/or added, wherein the mutant amino acid sequence has the activity to biosynthesize biodegradable polyester.Type: GrantFiled: May 9, 2003Date of Patent: November 25, 2008Assignee: RikenInventors: Seiichi Taguchi, Kazuma Takase, Yoshiharu Doi
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Publication number: 20070269872Abstract: A recombinant coryneform bacterium obtained by providing a coryneform bacterium, which is known as a safe substance originally having no hazardous endotoxin, includes membrane structures different from E. coli and can be cultured in high density, with a biodegradable polyester producing ability, and a method for efficiently producing a biodegradable polyester to be contacted with a living organism for use in the medical and food industries formulated thereby. Specifically, the recombinant coryneform bacterium is obtained by modifying the coryneform bacterium so as to have the biodegradable polyester producing ability by introducing a biodegradable polyester synthetic enzyme gene group and a cell surface protein gene promoter from the coryneform bacterium into the coryneform bacterium.Type: ApplicationFiled: June 21, 2006Publication date: November 22, 2007Inventors: Seiichi Taguchi, Sung-Jin Jo
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Patent number: 7276361Abstract: There is provided a method for producing a biodegradable polyester capable of controlling various physical properties of the biodegradable polyester. A poly(3-hydroxyalkanoate) biosynthetic enzyme is altered by an evolutionary-engineering technique, and the poly(3-hydroxyalkanoate) biosynthetic enzyme is expressed in a host to synthesize various copolymers in the host.Type: GrantFiled: December 9, 2002Date of Patent: October 2, 2007Assignee: RikenInventors: Yoshiharu Doi, Seiichi Taguchi, Tomoyasu Kichise
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Publication number: 20070054386Abstract: A mutant poly(3-hydroxyalkanoic acid) synthase comprising an amino acid sequence of (a) or (b) below. (a) A mutant amino acid sequence derived from SEQ ID No. 1, wherein at least one amino acid selected from the group consisting of glutamic acid at position 130, serine at position 325, serine at position 477 and glutamine at position 481 is substituted by another amino acid. (b) A mutant amino acid sequence derived from SEQ ID No. 1 wherein at least one amino acid selected from the group consisting of glutamic acid at position 130, serine at position 325, serine at position 477 and glutamine at position 481 is substituted by another amino acid, wherein at least one amino acid other than the amino acids at positions 130, 325, 477 and 481 is deleted, substituted and/or added, wherein the mutant amino acid sequence has the activity to biosynthesize biodegradable polyester.Type: ApplicationFiled: May 9, 2003Publication date: March 8, 2007Inventors: Seiichi Taguchi, Kazuma Takase, Yoshiharu Doi
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Publication number: 20050009949Abstract: There is provided a method for producing a biodegradable polyester capable of controlling various physical properties of the biodegradable polyester. A poly(3-hydroxyalkanoate) biosynthetic enzyme is altered by an evolutionary-engineering technique, and the poly(3-hydroxyalkanoate) biosynthetic enzyme is expressed in a host to synthesize various copolymers in the host.Type: ApplicationFiled: December 9, 2002Publication date: January 13, 2005Inventors: Yoshiharu Doi, Seiichi Taguchi, Tomoyasu Kichise
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Publication number: 20020187525Abstract: The present invention relates to a method of secretory production of transglutaminase by a microorganism.Type: ApplicationFiled: April 18, 2002Publication date: December 12, 2002Applicant: AJINOMOTO CO., INC.Inventors: Seiichi Taguchi, Haruo Momose
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Patent number: 5850580Abstract: The improved method and apparatus for recording a stereoscopic image read a plurality of original images photoelectrically, split each original image into linear images of a desired pitch, perform any necessary image processing operations such as arranging the linear images in the recording order, and record the linear images by scan exposure on a lenticular light-sensitive material having a lenticular sheet and a recording layer. The method and apparatus permit the lenticular light-sensitive material to be scan exposed from the rear side and they also enable the linear images to be recorded with increased line width and a stereoscopic image to be formed with satisfactory registration between the principal objects of the original images. The improved lenticular light-sensitive material has an anti-halation layer provided between the lenticular sheet and the recording layer, thus permitting scan exposure to be effected from the rear side.Type: GrantFiled: June 5, 1997Date of Patent: December 15, 1998Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiichi Taguchi, Shunkichi Igarashi
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Patent number: 5697006Abstract: The improved method and apparatus for recording a stereoscopic image read a plurality of original images photoelectrically, split each original image into linear images of a desired pitch, perform any necessary image processing operations such as arranging the linear images in the recording order, and record the linear images by scan exposure on a lenticular light-sensitive material having a lenticular sheet and a recording layer. The method and apparatus permit the lenticular light-sensitive material to be scan exposed from the rear side and they also enable the linear images to be recorded with increased line width and a stereoscopic image to be formed with satisfactory registration between the principal objects of the original images. The improved lenticular light-sensitive material has an anti-halation layer provided between the lenticular sheet and the recording layer, thus permitting scan exposure to be effected from the rear side.Type: GrantFiled: June 6, 1995Date of Patent: December 9, 1997Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiichi Taguchi, Shunkichi Igarashi
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Patent number: 5539487Abstract: The improved method and apparatus for recording a stereoscopic image read a plurality of original images photoelectrically, split each original image into linear images of a desired pitch, perform any necessary image processing operations such as arranging the linear images in the recording order, and record the linear images by scan exposure on a lenticular light-sensitive material having a lenticular sheet and a recording layer. The method and apparatus permit the lenticular light-sensitive material to be scan exposed from the rear side and they also enable the linear images to be recorded with increased line width and a stereoscopic image to be formed with satisfactory registration between the principal objects of the original images. The improved lenticular light-sensitive material has an anti-halation layer provided between the lenticular sheet and the recording layer, thus permitting scan exposure to be effected from the rear side.Type: GrantFiled: March 2, 1993Date of Patent: July 23, 1996Assignee: Fuji Photo Film Co., Ltd.Inventors: Seiichi Taguchi, Shunkichi Igarashi