Patents by Inventor Kunihiro Ohta

Kunihiro Ohta 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: 11457938
    Abstract: A foreign substance removing device includes a tubular member and a retriever configured to be expandable to and contractible from a predetermined shape. The retriever includes main wires disposed to be centered around a tube axis of the tubular member, and sub wires each connecting adjacent ones of the main wires to each other. Each of the main wires is configured to curve when the retriever is expanded such that a space having a predetermined size is provided by the main wires. Each of the sub wires is configured to be foldable at at least one point between the adjacent ones of the main wires. When the retriever is expanded, the folding points of the sub wires are positioned inside the space such that the sub wires do not protrude out of the main wires.
    Type: Grant
    Filed: February 9, 2018
    Date of Patent: October 4, 2022
    Assignees: KAWASUMI LABORATORIES, INC.
    Inventors: Dai Yamanouchi, Kunihiro Ohta, Hiroki Ishida
  • Patent number: 11248232
    Abstract: A method of modifying the genome of an organism, wherein the modification method includes modifying the genome of the organism by using in a cell of the organism a protein having an optimal temperature for double-stranded DNA breakage activity in an ordinary temperature region.
    Type: Grant
    Filed: December 12, 2016
    Date of Patent: February 15, 2022
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, THE UNIVERSITY OF TOKYO, MEIJI UNIVERSITY
    Inventors: Hidenori Tanaka, Nobuhiko Muramoto, Hiroki Sugimoto, Norihiro Mitsukawa, Chikara Ohto, Satoshi Kondo, Kunihiro Ohta, Takahiro Nakamura, Shuichi Osato
  • Publication number: 20210244585
    Abstract: In a walking assist chair, a lifting seat is movable between a first position in which the lifting seat is arranged to form a part of a seat of a wheelchair and a second position that is away from the ground compared to the first position. A receding seat is movable between a third position in which the receding seat is arranged adjacent to the lifting seat arranged in the first position so as to form a part of the seat of the wheelchair and a fourth position in which the receding seat is separated from the lifting seat in the second position. The walking assist chair functions as a wheelchair with a seat on which a user can sit. The walking assist chair functions in a second form as a walking assist apparatus that can support the user in a standing posture.
    Type: Application
    Filed: May 15, 2019
    Publication date: August 12, 2021
    Inventors: Kunihiro OHTA, Kousei YOSHIDA
  • Publication number: 20200187966
    Abstract: A foreign substance removing device includes a tubular member and a retriever configured to be expandable to and contractible from a predetermined shape. The retriever includes main wires disposed to be centered around a tube axis of the tubular member, and sub wires each connecting adjacent ones of the main wires to each other. Each of the main wires is configured to curve when the retriever is expanded such that a space having a predetermined size is provided by the main wires. Each of the sub wires is configured to be foldable at at least one point between the adjacent ones of the main wires. When the retriever is expanded, the folding points of the sub wires are positioned inside the space such that the sub wires do not protrude out of the main wires.
    Type: Application
    Filed: February 9, 2018
    Publication date: June 18, 2020
    Applicants: KAWASUMI LABORATORIES, INC.
    Inventors: Dai YAMANOUCHI, Kunihiro OHTA, Hiroki ISHIDA
  • Publication number: 20180371477
    Abstract: A method of modifying the genome of an organism, wherein the modification method includes modifying the genome of the organism by using in a cell of the organism a protein having an optimal temperature for double-stranded DNA breakage activity in an ordinary temperature region.
    Type: Application
    Filed: December 12, 2016
    Publication date: December 27, 2018
    Applicants: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, The University of Tokyo, MEIJI UNIVERSITY
    Inventors: Hidenori TANAKA, Nobuhiko MURAMOTO, Hiroki SUGIMOTO, Norihiro MITSUKAWA, Chikara OHTO, Satoshi KONDO, Kunihiro OHTA, Takahiro NAKAMURA, Shuichi OSATO
  • Publication number: 20180098767
    Abstract: An anastomosis device 3 includes a corrugated circumference section (20;120;120?), a top-side slender member (10A-1;110A-1), and a bottom-side slender member (10B-1;110B-12). The top-side slender member (10A-1;110A-1) is connected to one top section (20A-1;30A-1;120A-1) of the corrugated circumference section (20; 120;120?). The bottom-side slender member (10B-1;110B-12) is connected to one (20B-1;30B-1;120B-12) at the corrugated circumference section (20;120;120?).
    Type: Application
    Filed: February 24, 2016
    Publication date: April 12, 2018
    Inventors: Shunji SARUKAWA, Hideaki KAMOCHI, Keita INOUE, Noriko SAEGUSA, Masahiro NAKAGAWA, Kunihiro OHTA
  • Patent number: 9902968
    Abstract: A method of increasing the biomass of a plant that includes planting a plant having plant cells carrying an exogenous gene that encodes a thermophilic restriction enzyme that promotes double-stranded DNA breakage, and growing the plant at least until after true leaf development, wherein the mean biomass of plants having the plant cells carrying the exogenous gene that are grown at least until after true leaf development is increased in comparison with the mean biomass of plants of the same species that do not carry the exogenous gene that are grown for the same amount of time.
    Type: Grant
    Filed: March 10, 2014
    Date of Patent: February 27, 2018
    Assignees: KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO, THE UNIVERSITY OF TOKYO
    Inventors: Nobuhiko Muramoto, Hiroki Sugimoto, Norihiro Mitsukawa, Kunihiro Ohta, Kazuto Kugou
  • Patent number: 9587251
    Abstract: The present invention provides a method for obtaining diverse novel genes by inducing somatic cell homologous recombination at genetic loci in somatic cells. By controlling transcription activity of a gene that exists at a genetic locus in a eukaryotic organism cell wherein DNA homologous recombination is occurring at an arbitrary genetic locus, somatic cell homologous recombination is induced between said gene and a gene having a DNA sequence similar to said gene that exists in a region upstream of a transcription promoter, whereby it is possible to obtain diverse novel genes having a plurality of genetic information.
    Type: Grant
    Filed: December 22, 2003
    Date of Patent: March 7, 2017
    Assignees: Riken, Chiome Bioscience, Inc.
    Inventors: Kunihiro Ohta, Hidetaka Seo, Takehiko Shibata
  • Patent number: 8901044
    Abstract: It is an object of the present invention to provide a method for stably and efficiently binding a compound to magnetic beads. The present invention relates to a method for producing compound-bound magnetic beads, which comprises: allowing a compound to come into contact with magnetic beads, on the surface of each of which a photoreactive compound has bound; extending the magnetic beads together with the compound on a support; and applying light to the magnetic beads to form a covalent bond between the photoreactive compound and the compound.
    Type: Grant
    Filed: May 11, 2010
    Date of Patent: December 2, 2014
    Assignee: Riken
    Inventors: Hiroyuki Osada, Kaori Honda, Kunihiro Ohta, Akiho Murayama
  • Patent number: 8865969
    Abstract: According to the present invention, a technique of increasing the frequency of genetic recombination in genomic DNA of a plant is established. Such technique comprises: introducing a restriction enzyme gene that can be expressed in a target plant cell into the plant cell and causing the restriction enzyme gene to be transiently expressed so as to induce genetic recombination of genomic DNA; or introducing a promoter and a restriction enzyme gene using the Agrobacterium method so as to induce genetic recombination of genomic DNA.
    Type: Grant
    Filed: January 18, 2011
    Date of Patent: October 21, 2014
    Assignees: Toyota Jidosha Kabushiki Kaisha, Riken
    Inventors: Satoshi Kondo, Chikara Ohto, Kunihiro Ohta, Shuichi Ohsato, Norihiro Mitsukawa, Nobuhiko Muramoto, Hiroki Sugimoto
  • Publication number: 20140273126
    Abstract: It is an object of the present invention to increase the biomass quantity of plants by causing an exogenous gene to be carried in plant cells. An exogenous gene that promotes double-stranded DNA breakage is introduced into the cells of a plant, and the plant is grown.
    Type: Application
    Filed: March 10, 2014
    Publication date: September 18, 2014
    Applicants: THE UNIVERSITY OF TOKYO, KABUSHIKI KAISHA TOYOTA CHUO KENKYUSHO
    Inventors: Nobuhiko MURAMOTO, Hiroki SUGIMOTO, Norihiro MITSUKAWA, Kunihiro OHTA, Kazuto KUGOU
  • Patent number: 8591902
    Abstract: In order to identify a factor demonstrating a repellent effect on axon extension of a neuron, lysophosphatidylglucoside (LPG) has been found to have an activity as a chemorepellent effect on axon guidance of a DRG sensory neuron specific to a neuron expressing TrkA, an NGF receptor. In addition, it has been found out that suppressing the function of LPG makes it possible to suppress a repellent effect of LPG on axon extension of a neuron expressing TrkA. A molecule capable of suppressing the function of LPG can be a composition promoting repairing of a neural circuit in neuronal damages and the like.
    Type: Grant
    Filed: July 7, 2011
    Date of Patent: November 26, 2013
    Assignee: Riken
    Inventors: Yoshio Hirabayashi, Hiroyuki Kamiguchi, Kunihiro Ohta, Akiho Nakamura
  • Publication number: 20130142813
    Abstract: In order to identify a factor demonstrating a repellent effect on axon extension of a neuron, lysophosphatidylglucoside (LPG) has been found to have an activity as a chemorepellent effect on axon guidance of a DRG sensory neuron specific to a neuron expressing TrkA, an NGF receptor. In addition, it has been found out that suppressing the function of LPG makes it possible to suppress a repellent effect of LPG on axon extension of a neuron expressing TrkA. A molecule capable of suppressing the function of LPG can be a composition promoting repairing of a neural circuit in neuronal damages and the like.
    Type: Application
    Filed: July 7, 2011
    Publication date: June 6, 2013
    Applicant: RIKEN
    Inventors: Yoshio Hirabayashi, Hiroyuki Kamiguchi, Kunihiro Ohta, Akiho Nakamura
  • Patent number: 8187884
    Abstract: The present invention provides a novel method for obtaining diverse antibodies as a result of markedly enhancing the somatic homologous recombination at an antibody locus in immunocytes. By putting immunocytes in which DNA homologous recombination is occurring at an antibody locus (for example, DT40 cells and the like) into contact and the like with histone acetylase inhibitor and the like (for example, trichostatin A and the like), thereby relaxing the chromatin structure at said antibody locus, somatic homologous recombination at an antibody locus is enhanced, and the production of diverse antibody molecules is made possible. The production of antibodies that bind specifically to antigens from cell populations in which the antibody molecules have been diversified by the enhancement of somatic homologous recombination is made possible by using an appropriate selection method (for example, beads coated with antigen and the like).
    Type: Grant
    Filed: June 10, 2010
    Date of Patent: May 29, 2012
    Assignees: Riken, Chiome Bioscience, Inc.
    Inventors: Kunihiro Ohta, Hidetaka Seo, Takehiko Shibata
  • Patent number: 8154150
    Abstract: A power line communication system which enables high quality communication utilizing a pair of power lines connected to a vehicle mounted battery, has a pair of communication lines connected to a pair of power lines, respectively, to communicate a high frequency signal of 1 MHz or more. This system has a balance filter which is interposed between each of the communication lines and a vehicle mounted communication apparatus, the filter, a circuit configuration of which is formed in balance type. The communication system also has a pair of electrically balanced lines which are connected between the balance filter and each of the communication apparatuses and are power-fed from the battery, for performing communication between the communication apparatuses.
    Type: Grant
    Filed: March 24, 2008
    Date of Patent: April 10, 2012
    Assignees: SMK Corporation, Toyota Jidosha Kabushiki Kaisha
    Inventors: Katsumi Sakai, Koki Goto, Hajime Takata, Kunihiro Ohta
  • Publication number: 20110277189
    Abstract: According to the present invention, a technique of increasing the frequency of genetic recombination in genomic DNA of a plant is established. Such technique comprises: introducing a restriction enzyme gene that can be expressed in a target plant cell into the plant cell and causing the restriction enzyme gene to be transiently expressed so as to induce genetic recombination of genomic DNA; or introducing a promoter and a restriction enzyme gene using the Agrobacterium method so as to induce genetic recombination of genomic DNA.
    Type: Application
    Filed: January 18, 2011
    Publication date: November 10, 2011
    Applicants: RIKEN, TOYOTA JIDOSHA KABUSHIKI KAISHA
    Inventors: Satoshi KONDO, Chikara OHTO, Kunihiro OHTA, Shuichi OHSATO, Norihiro MITSUKAWA, Nobuhiko MURAMOTO, Hiroki SUGIMOTO
  • Patent number: 7968339
    Abstract: The present invention relates to a method for increasing genetic recombination frequency in a genomic DNA and a method for inducing genome rearrangement. Specifically, according to the present invention there are provided: the method for increasing genetic recombination frequency in a cell in which genetic recombination takes place at any sites in the genome, comprising causing a restriction enzyme to be expressed in the cell, inducing transient activation of the restriction enzyme, and then introducing 2 or more double strand cleavages into any genomic DNA of the cell, so as to increase the genetic recombination frequency; the method for inducing genome rearrangement through the use of the above method; and cells each prepared through the use of the above 2 methods.
    Type: Grant
    Filed: November 22, 2005
    Date of Patent: June 28, 2011
    Assignee: Riken
    Inventors: Kunihiro Ohta, Hidetaka Seo, Kouji Hirota, Takehiko Shibata
  • Publication number: 20110070650
    Abstract: The present invention provides a novel method for obtaining diverse antibodies as a result of markedly enhancing the somatic homologous recombination at an antibody locus in immunocytes. By putting immunocytes in which DNA homologous recombination is occurring at an antibody locus (for example, DT40 cells and the like) into contact and the like with histone acetylase inhibitor and the like (for example, trichostatin A and the like), thereby relaxing the chromatin structure at said antibody locus, somatic homologous recombination at an antibody locus is enhanced, and the production of diverse antibody molecules is made possible.
    Type: Application
    Filed: June 10, 2010
    Publication date: March 24, 2011
    Inventors: Kunihiro Ohta, Hidetaka Seo, Takehiko Shibata
  • Publication number: 20100311608
    Abstract: It is an object of the present invention to provide a method for stably and efficiently binding a compound to magnetic beads. The present invention relates to a method for producing compound-bound magnetic beads, which comprises: allowing a compound to come into contact with magnetic beads, on the surface of each of which a photoreactive compound has bound; extending the magnetic beads together with the compound on a support; and applying light to the magnetic beads to form a covalent bond between the photoreactive compound and the compound.
    Type: Application
    Filed: May 11, 2010
    Publication date: December 9, 2010
    Applicants: RIKEN, THE UNIVERSITY OF TOKYO
    Inventors: Hiroyuki OSADA, Kaori HONDA, Kunihiro OHTA, Akiho MURAYAMA
  • Patent number: 7776599
    Abstract: The present invention provides a novel method for obtaining diverse antibodies as a result of markedly enhancing the somatic homologous recombination at an antibody locus in immunocytes. By putting immunocytes in which DNA homologous recombination is occurring at an antibody locus (for example, DT40 cells and the like) into contact and the like with histone acetylase inhibitor and the like (for example, trichostatin A and the like), thereby relaxing the chromatin structure at said antibody locus, somatic homologous recombination at an antibody locus is enhanced, and the production of diverse antibody molecules is made possible. The production of antibodies that bind specifically to antigens from cell populations in which the antibody molecules have been diversified by the enhancement of somatic homologous recombination is made possible by using an appropriate selection method (for example, beads coated with antigen and the like).
    Type: Grant
    Filed: July 28, 2003
    Date of Patent: August 17, 2010
    Assignees: Riken, Japan Science and Technology Agency
    Inventors: Kunihiro Ohta, Hidetaka Seo, Takehiko Shibata