Patents by Inventor Keietsu Abe

Keietsu Abe 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: 11946086
    Abstract: This invention is intended to identify a gene cluster involved in biosynthesis of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species and to establish a system for synthesizing such cyclic peptide compound. The gene is composed of a first module to a tenth module and encodes a protein having activity of synthesizing a nonribosomal peptide constituting a basic peptide backbone of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species.
    Type: Grant
    Filed: December 13, 2021
    Date of Patent: April 2, 2024
    Assignees: TOHOKU UNIVERSITY, KUMIAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Takashi Kubo, Masayuki Machida, Maiko Umemura, Keietsu Abe, Akira Yoshimi, Tomonori Fujioka, Shigenari Yamaguchi, Kiyoshi Kawai
  • Publication number: 20220259634
    Abstract: This invention is intended to identify a gene cluster involved in biosynthesis of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species and to establish a system for synthesizing such cyclic peptide compound. The gene is composed of a first module to a tenth module and encodes a protein having activity of synthesizing a nonribosomal peptide constituting a basic peptide backbone of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species.
    Type: Application
    Filed: December 13, 2021
    Publication date: August 18, 2022
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOHOKU UNIVERSITY, KUMIAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Takashi KUBO, Masayuki MACHIDA, Maiko UMEMURA, Keietsu ABE, Akira YOSHIMI, Tomonori FUJIOKA, Shigenari YAMAGUCHI, Kiyoshi KAWAI
  • Patent number: 11230726
    Abstract: This invention is intended to identify a gene cluster involved in biosynthesis of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species and to establish a system for synthesizing such cyclic peptide compound. The gene is composed of a first module to a tenth module and encodes a protein having activity of synthesizing a nonribosomal peptide constituting a basic peptide backbone of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species.
    Type: Grant
    Filed: December 27, 2017
    Date of Patent: January 25, 2022
    Assignees: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOHOKU UNIVERSITY, KUMIAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Takashi Kubo, Masayuki Machida, Maiko Umemura, Keietsu Abe, Akira Yoshimi, Tomonori Fujioka, Shigenari Yamaguchi, Kiyoshi Kawai
  • Patent number: 11021725
    Abstract: Provided is a mutant filamentous fungus, which lacks expression of ?-1,3-glucan, and is deficient in at least part of a GAG biosynthetic cluster. Also provided is a method of producing a substance, including the steps of: culturing the filamentous fungus to allow the filamentous fungus to produce a substance; and collecting the resulting substance.
    Type: Grant
    Filed: May 1, 2018
    Date of Patent: June 1, 2021
    Assignees: TOHOKU UNIVERSITY, KANAZAWA INSTITUTE OF TECHNOLOGY
    Inventors: Keietsu Abe, Akira Yoshimi, Ken Miyazawa, Fuka Tabata, Katsuya Gomi, Motoaki Sano
  • Patent number: 11015175
    Abstract: An object to be achieved by the present invention is to culture a filamentous fungus at a high density, thereby enabling mass production of a useful substance. The present invention provides a method of producing a substance, including the steps of: culturing a mutant filamentous fungus with no expression of ?-1,3-glucan to allow the filamentous fungus to produce a substance; and collecting the resulting substance.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: May 25, 2021
    Assignee: TOHOKU UNIVERSITY
    Inventors: Keietsu Abe, Katsuya Gomi, Kei Yoshimi
  • Publication number: 20200115726
    Abstract: Provided is a mutant filamentous fungus, which lacks expression of ?-1,3-glucan, and is deficient in at least part of a GAG biosynthetic cluster. Also provided is a method of producing a substance, including the steps of: culturing the filamentous fungus to allow the filamentous fungus to produce a substance; and collecting the resulting substance.
    Type: Application
    Filed: May 1, 2018
    Publication date: April 16, 2020
    Applicants: TOHOKU UNIVERSITY, KANAZAWA INSTITUTE OF TECHNOLOGY
    Inventors: Keietsu ABE, Akira YOSHIMI, Ken MIYAZAWA, Fuka TABATA, Katsuya GOMI, Motoaki SANO
  • Publication number: 20190316164
    Abstract: This invention is intended to identify a gene cluster involved in biosynthesis of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species and to establish a system for synthesizing such cyclic peptide compound. The gene is composed of a first module to a tenth module and encodes a protein having activity of synthesizing a nonribosomal peptide constituting a basic peptide backbone of a cyclic peptide compound produced by a filamentous fungus of the Curvularia species.
    Type: Application
    Filed: December 27, 2017
    Publication date: October 17, 2019
    Applicants: NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGY, TOHOKU UNIVERSITY, KUMIAI CHEMICAL INDUSTRY CO., LTD.
    Inventors: Takashi KUBO, Masayuki MACHIDA, Maiko UMEMURA, Keietsu ABE, Akira YOSHIMI, Tomonori FUJIOKA, Shigenari YAMAGUCHI, Kiyoshi KAWAI
  • Patent number: 9387175
    Abstract: It has been found that modification of surfaces of nanoparticles with a RolA protein decreases an immunostimulation activity of the nanoparticles on myeloid dendritic cells and also decreases phagocytosis of the nanoparticles by macrophages. The present invention provides nanoparticles being modified with a biological molecule and having an immune-response evasion function.
    Type: Grant
    Filed: August 3, 2012
    Date of Patent: July 12, 2016
    Assignee: TOHOKU UNIVERSITY
    Inventors: Keietsu Abe, Kazuyoshi Kawakami, Tadafumi Ajiri, Manabu Fukumoto, Seiichi Takami, Takanari Togashi, Kimihide Muragaki, Toru Takahashi
  • Publication number: 20150307852
    Abstract: An object to be achieved by the present invention is to culture a filamentous fungus at a high density, thereby enabling mass production of a useful substance. The present invention provides a method of producing a substance, including the steps of: culturing a mutant filamentous fungus with no expression of ?-1,3-glucan to allow the filamentous fungus to produce a substance; and collecting the resulting substance.
    Type: Application
    Filed: November 8, 2013
    Publication date: October 29, 2015
    Applicant: TOHOKU UNIVERSITY
    Inventors: Keietsu ABE, Katsuya GOMI, Kei YOSHIMI
  • Publication number: 20140314859
    Abstract: It has been found that modification of surfaces of nanoparticles with a RolA protein decreases an immunostimulation activity of the nanoparticles on myeloid dendritic cells and also decreases phagocytosis of the nanoparticles by macrophages. The present invention provides nanoparticles being modified with a biological molecule and having an immune-response evasion function.
    Type: Application
    Filed: August 3, 2012
    Publication date: October 23, 2014
    Applicant: TOHOKU UNIVERSITY
    Inventors: Keietsu Abe, Kazuyoshi Kawakami, Tadafumi Ajiri, Manabu Fukumoto, Seiichi Takami, Takanari Togashi, Kimihide Muragaki, Toru Takahashi
  • Publication number: 20120023616
    Abstract: This invention provides a method for preventing or inhibiting infection with a plant-infecting microorganism and imparting resistivity to plants, a method for preparing plants having resistance to diseases caused by microorganisms such as plant pathogenic filamentous fungi, and a microbial pesticide formulation. The method for preventing or inhibiting infection of a host plant with plant-infecting microorganisms comprises degrading ?-1,3-glucan on cell walls of the microorganisms by ?-1,3-glucanase.
    Type: Application
    Filed: March 16, 2010
    Publication date: January 26, 2012
    Applicant: NATIONAL INSTITUTE OF AGROBIOLOGICAL SCIENCES
    Inventors: Marie Nishimura, Yoko Nishizawa, Takashi Fujikawa, Ichiro Mitsuhara, Eiichi Minami, Keietsu Abe, Takashi Tachiki, Shigekazu Yano
  • Patent number: 7763444
    Abstract: It is intended to provide koji mold-origin phospholipase A2 and a DNA encoding it. Namely, phospholipase A2 comprising the following protein (a) or (b): (a) a protein having an amino acid sequence represented by SEQ ID NO: 1 or 2; and (b) a protein having an amino acid sequence derived from an amino acid sequence represented by SEQ ID NO: 1 or 2 by a partial modification and serving as phospholipase A2.
    Type: Grant
    Filed: June 23, 2009
    Date of Patent: July 27, 2010
    Assignees: National Institute of Technology and Evaluation, National Institute of Advanced Industrial Science and Technology, National Research Institute of Brewing
    Inventors: Katsuhiko Kitamoto, Manabu Arioka, Shotaro Yamaguchi, Masayuki Machida, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Motoaki Sano, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Kuhara
  • Publication number: 20090263888
    Abstract: It is intended to provide koji mold-origin phospholipase A2 and a DNA encoding it. Namely, phospholipase A2 comprising the following protein (a) or (b): (a) a protein having an amino acid sequence represented by SEQ ID NO: 1 or 2; and (b) a protein having an amino acid sequence derived from an amino acid sequence represented by SEQ ID NO: 1 or 2 by a partial modification and serving as phospholipase A2.
    Type: Application
    Filed: June 23, 2009
    Publication date: October 22, 2009
    Applicants: National Institute of Technology and Evaluation, Natinal Institute of Advanced Industrial Science and Technology, National Research Institute of Brewing
    Inventors: Katsuhiko Kitamoto, Manabu Arioka, Shotaro Yamaguchi, Masayuki Machida, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Motoaki Sano, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Kuhara
  • Patent number: 7348170
    Abstract: Lysyl oxidase derived from filamentous fungi and a DNA encoding thereof are provided. Lysyl oxidase including a protein described in of the following (a) or (b): (a) a protein having an amino acid sequence set forth in SEQ ID NO: 2; or (b) a protein having an amino acid sequence obtained by modifying a part of the amino acid sequence set forth in SEQ ID NO: 2, and functioning as lysyl oxidase.
    Type: Grant
    Filed: December 25, 2002
    Date of Patent: March 25, 2008
    Assignees: Amano Enzyme Inc., National Institute of Advanced Industrial Science and Technology, National Institute of Technology and Evaluation, National Research Institute of Brewing
    Inventors: Kensuke Yuuki, Atsuki Toumoto, Masayuki Machida, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Motoaki Sano, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Hisahara
  • Patent number: 7285407
    Abstract: The purpose of the present invention is to isolate a gene encoding novel exo-, or endo-?-1,3-glucanase, to obtain a microorganism having an enhanced expression of said gene and to degrade ?-1,3-glucan to its low molecular weight form by means of said enzymes. The present invention relates to a gene or DNA encoding novel enzymes having ?-1,3-glucanase activity (exo-, or endo-?-1,3-glucanase), a recombinant expression vector comprising them, a microorganism having the recombinant expression vector, the novel enzymes having ?-1,3-glucanase activity, and a method for the production of said enzymes.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: October 23, 2007
    Assignees: National Institute of Advanced Industrial Science and Technology, National Institute of Technology and Evaluation
    Inventors: Masayuki Machida, Motoaki Sano, Misao Sunagawa, Tasuku Nakajima, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Kuhara
  • Patent number: 7186540
    Abstract: A completely novel glutaminase is provided: (a) a protein consisting of an amino acid sequence represented by SEQ ID NO: 2, or (b) a protein consisting of an amino acid sequence derived from the amino acid sequence represented by SEQ ID NO: 2 by deletion, substitution or addition of one or more amino acids, and possessing glutaminase activity. This protein is a novel glutaminase possessing excellent thermostability and the like.
    Type: Grant
    Filed: December 24, 2002
    Date of Patent: March 6, 2007
    Assignees: National Institute of Advanced Indusrtial Science and Technology, National Institute of Technology and Evaluation, National Research Institute of Brewing
    Inventors: Masayuki Machida, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Motoaki Sano, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Kuhara, Kotaro Ito, Kenichiro Matsushima, Yasuji Koyama
  • Publication number: 20060234320
    Abstract: The present invention provides DNA encoding novel pyroglutamyl peptidase derived from Aspergillus oryzae, pyroglutamyl peptidase which is produced by using the DNA, and a method for producing a protein lysate with a good flavor at a high hydrolysis rate.
    Type: Application
    Filed: December 26, 2002
    Publication date: October 19, 2006
    Inventors: Masayuki Machida, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Motoaki Sano, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Kuhara, Chikara Tokunaga, Itaru Toda, Chiaki Saitoh, Akihiro Senoh
  • Publication number: 20060106120
    Abstract: A method of degrading a plastic in the presence of a biosurfactant; a method of degrading a plastic by contacting the plastic with a microorganism; a process for producing a useful substance from a plastic which comprises degrading the plastic by contacting the plastic with a microorganism and further converting the components of the thus degraded plastic with the use of a microorganism; a method of degrading a plastic by contacting the plastic with a microorganism in the coexistence of a biosurfactant and/or a plastic-degrading enzyme and thus degrading the plastic under the action of the microorganism; a transformant microorganism having been recombined with at least one DNA selected from among a DNA containing a gene encoding a surface active substance, a DNA containing a gene encoding a plastic-degrading enzyme and a DNA containing a gene encoding a useful substance; novel genes as described above; and proteins encoded thereby.
    Type: Application
    Filed: September 17, 2003
    Publication date: May 18, 2006
    Applicants: TOHOPKU TECHNO ARCH CO., LTD., National Institute of Advanced Industrial Science and Technology
    Inventors: Keietsu Abe, Katsuya Gomi, Yohei Yamagata, Fumihiko Hasegawa, Hiroshi Maeda, Tasuku Nakajima, Masayuki Machida
  • Publication number: 20050287634
    Abstract: The purpose of the present invention is to isolate a gene encoding novel exo-, or endo-?-1,3-glucanase, to obtain a microorganism having an enhanced expression of said gene and to degrade ?-1,3-glucan to its low molecular weight form by means of said enzymes. The present invention relates to a gene or DNA encoding novel enzymes having ?-1,3-glucanase activity (exo-, or endo-?-1,3-glucanase), a recombinant expression vector comprising them, a microorganism having the recombinant expression vector, the novel enzymes having ?-1,3-glucanase activity, and a method for the production of said enzymes.
    Type: Application
    Filed: March 22, 2005
    Publication date: December 29, 2005
    Applicants: National Institute of advanced Industrial Science and Technology, National Institute of Technology and Evaluation, National Research Institute of Brewing
    Inventors: Masayuki Machida, Motoaki Sano, Misao Sunagawa, Tasuku Nakajima, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Kuhara
  • Publication number: 20040082053
    Abstract: A completely novel glutaminase is provided: (a) a protein consisting of an amino acid sequence represented by SEQ ID NO: 2, or (b) a protein consisting of an amino acid sequence derived from the amino acid sequence represented by SEQ ID NO: 2 by deletion, substitution or addition of one or more amino acids, and possessing glutaminase activity. This protein is a novel glutaminase possessing excellent thermostability and the like.
    Type: Application
    Filed: December 24, 2002
    Publication date: April 29, 2004
    Inventors: Masayuki Machida, Keietsu Abe, Katsuya Gomi, Kiyoshi Asai, Motoaki Sano, Taishin Kin, Hideki Nagasaki, Akira Hosoyama, Osamu Akita, Naotake Ogasawara, Satoru Kuhara, Kotaro Ito, Kenichiro Matsushima, Yasuji Koyama