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).

  • Publication number: 20210340372
    Abstract: 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: Application
    Filed: September 13, 2019
    Publication date: November 4, 2021
    Applicants: KANEKA CORPORATION, TOKYO UNIVERSITY OF AGRICULTURE
    Inventors: Shunsuke SATO, Tomoaki HASHIGUCHI, Seiichi TAGUCHI
  • Publication number: 20180163236
    Abstract: 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: Application
    Filed: May 26, 2016
    Publication date: June 14, 2018
    Applicant: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Seiichi TAGUCHI, Ryosuke KADOYA
  • Patent number: 9434965
    Abstract: 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: Grant
    Filed: October 10, 2012
    Date of Patent: September 6, 2016
    Assignees: SHOWA DENKO K.K., NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY
    Inventors: Ken'ichiro Matsumoto, Seiichi Taguchi, Hirobumi Aoki
  • Patent number: 9062291
    Abstract: 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: Grant
    Filed: August 14, 2009
    Date of Patent: June 23, 2015
    Assignee: AJINOMOTO CO., INC.
    Inventors: Keiichi Yokoyama, Mototaka Suzuki, Tatsuki Kashiwagi, Eiichiro Suzuki, Masayo Date, Seiichi Taguchi
  • Publication number: 20140234927
    Abstract: 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: Application
    Filed: October 10, 2012
    Publication date: August 21, 2014
    Applicant: SHOWA DENKO K.K.
    Inventors: Ken'ichiro Matsumoto, Seiichi Taguchi, Hirobumi Aoki
  • Patent number: 8748137
    Abstract: 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: Grant
    Filed: October 27, 2009
    Date of Patent: June 10, 2014
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Shusei Obata, Hiromi Kambe, Masakazu Ito, Takashi Shimamura, Katsunori Kohda, Seiichi Taguchi
  • Patent number: 8563281
    Abstract: 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: Grant
    Filed: April 23, 2009
    Date of Patent: October 22, 2013
    Assignee: Toyota Jidosha Kabushiki Kaisha
    Inventors: Seiichi Taguchi, Kenji Tajima, Yasuharu Satoh, Ken'ichiro Matsumoto, Miwa Yamada, Shusei Obata, Hiromi Kambe, Katsunori Kohda, Katsuhiro Ohno, Takashi Shimamura
  • Publication number: 20110212497
    Abstract: 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: Application
    Filed: October 27, 2009
    Publication date: September 1, 2011
    Applicants: National University Corporation Hokkaido University, Toyota Jidosha Kabushiki Kaisha
    Inventors: Shusei Obata, Hiromi Kambe, Masakazu Ito, Takashi Shimamura, Katsunori Kohda, Seiichi Taguchi
  • Publication number: 20110104768
    Abstract: 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: Application
    Filed: April 23, 2009
    Publication date: May 5, 2011
    Applicants: NATIONAL UNIVERSITY CORPORATION HOKKAIDO UNIVERSITY, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Seiichi Taguchi, Kenji Tajima, Yasuharu Satoh, Ken'ichiro Matsumoto, Miwa Yamada, Shusei Obata, Hiromi Kambe, Katsuhiro Kohda, Katsuhiro Ohno, Takashi Shimamura
  • Publication number: 20100143970
    Abstract: 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: Application
    Filed: August 14, 2009
    Publication date: June 10, 2010
    Inventors: Keiichi Yokoyama, Mototaka Suzuki, Tatsuki Kashiwagi, Eiichiro Suzuki, Masayo Date, Seiichi Taguchi
  • Publication number: 20090226988
    Abstract: 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: Application
    Filed: November 13, 2008
    Publication date: September 10, 2009
    Inventors: Kenji Tajima, Yasuharu Satou, Masanobu Munekata, Seiichi Taguchi, Tokuo Matsushima
  • Patent number: 7456002
    Abstract: 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: Grant
    Filed: May 9, 2003
    Date of Patent: November 25, 2008
    Assignee: Riken
    Inventors: Seiichi Taguchi, Kazuma Takase, Yoshiharu Doi
  • Publication number: 20070269872
    Abstract: 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: Application
    Filed: June 21, 2006
    Publication date: November 22, 2007
    Inventors: Seiichi Taguchi, Sung-Jin Jo
  • Patent number: 7276361
    Abstract: 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: Grant
    Filed: December 9, 2002
    Date of Patent: October 2, 2007
    Assignee: Riken
    Inventors: Yoshiharu Doi, Seiichi Taguchi, Tomoyasu Kichise
  • Publication number: 20070054386
    Abstract: 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: Application
    Filed: May 9, 2003
    Publication date: March 8, 2007
    Inventors: Seiichi Taguchi, Kazuma Takase, Yoshiharu Doi
  • Publication number: 20050009949
    Abstract: 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: Application
    Filed: December 9, 2002
    Publication date: January 13, 2005
    Inventors: Yoshiharu Doi, Seiichi Taguchi, Tomoyasu Kichise
  • Publication number: 20020187525
    Abstract: The present invention relates to a method of secretory production of transglutaminase by a microorganism.
    Type: Application
    Filed: April 18, 2002
    Publication date: December 12, 2002
    Applicant: AJINOMOTO CO., INC.
    Inventors: Seiichi Taguchi, Haruo Momose
  • Patent number: 5850580
    Abstract: 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: Grant
    Filed: June 5, 1997
    Date of Patent: December 15, 1998
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiichi Taguchi, Shunkichi Igarashi
  • Patent number: 5697006
    Abstract: 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: Grant
    Filed: June 6, 1995
    Date of Patent: December 9, 1997
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiichi Taguchi, Shunkichi Igarashi
  • Patent number: 5539487
    Abstract: 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: Grant
    Filed: March 2, 1993
    Date of Patent: July 23, 1996
    Assignee: Fuji Photo Film Co., Ltd.
    Inventors: Seiichi Taguchi, Shunkichi Igarashi