Patents by Inventor Masateru Taniguchi

Masateru Taniguchi 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: 9535033
    Abstract: The analysis method allows analysis of samples with high sensitivity, irrespective of interelectrode distance. The method includes: a step of applying a voltage between a first electrode pair such that an electric field is formed in a direction intersecting a migration direction of a sample; a step of placing a solution, including an electrochemically active molecule that produces a redox reaction at the electrode pair, between the first electrode pair; a step of causing the sample to migrate; and a step of measuring an amount of change in current flow between the first electrode pair.
    Type: Grant
    Filed: August 2, 2013
    Date of Patent: January 3, 2017
    Assignee: QUANTUM BIOSYSTEMS INC.
    Inventors: Tomoji Kawai, Takahito Ohshiro, Masateru Taniguchi
  • Publication number: 20160377591
    Abstract: The present disclosure provides a biomolecule sequencing device that includes at least one set of nano-gap electrodes arranged so that a current flows when a biomolecule contained in a sample passes in proximity to the set of nano-gap electrodes, an electrophoresis electrode pair for forming an electric field for moving the biomolecule between the electrodes of the set of nano-gap electrodes, a flow path for flowing the sample in a direction towards the nano-gap electrode pair, a flow path for flowing the sample in a direction away from the nano-gap electrode pair, a measurement unit configured to measure a tunnel current generated when the biomolecule passes between the electrodes of the nano-gap electrode pair with an electric field being formed, and an identification unit configured to sequence the biomolecule.
    Type: Application
    Filed: July 22, 2016
    Publication date: December 29, 2016
    Inventors: Tomoji Kawai, Masateru Taniguchi, Takahito Ohshiro, Mark Floyd Oldham, Eric Scott Nordman
  • Patent number: 9506894
    Abstract: The present invention provides a method and apparatus for controlling the moving speed of a substance, both of which can adjust the moving speed of a substance to a desired speed. The control method and control apparatus cause a substance to pass through an internal space, in which an electro-osmotic flow is generated, of a surround electrode formed so as to surround part of the moving path of the substance, whereby the control method and control apparatus change the moving speed of the substance.
    Type: Grant
    Filed: August 26, 2013
    Date of Patent: November 29, 2016
    Assignee: QUANTUM BIOSYSTEMS INC.
    Inventors: Tomoji Kawai, Soh Ryuzaki, Masateru Taniguchi
  • Publication number: 20160319342
    Abstract: Devices, systems and methods for sequencing protein samples are provided. In some examples, currents generated when a monomer passes through between electrodes of a nanogap electrode pair are measured for each of several different distances, so that monomers are identified when compared to a reference physical quantity of a known monomer, which may be obtained from a current measured with a similar inter-electrode distance(s) at which each of plural kinds of monomers are identifiable and ordered with predetermined accuracy and based on a detected physical quantity obtained from a tunneling current, which may be further normalized by the use of one or more reference substances.
    Type: Application
    Filed: March 4, 2016
    Publication date: November 3, 2016
    Inventors: Tomoji Kawai, Masateru Taniguchi, Takahito Ohshiro, Mark Oldham, Eric Nordman
  • Publication number: 20160138101
    Abstract: The present invention provides technology that uses current measurements to identify nucleotides and determine a nucleotide sequence in polynucleotides. The present invention calculates a modal value of a tunnel current that arises when a nucleotide or polynucleotide for analysis passes through between electrodes, and then employs the calculated modal value. The present invention accordingly enables direct rapid implementation to identify nucleotides and to determine a nucleotide sequence in a polynucleotide without marking.
    Type: Application
    Filed: October 14, 2015
    Publication date: May 19, 2016
    Inventors: Masateru Taniguchi, Makusu Tsutsui, Kazumichi Yokota, Tomoji Kawai
  • Patent number: 9194838
    Abstract: The present invention provides technology that uses current measurements to identify nucleotides and determine a nucleotide sequence in polynucleotides. The present invention calculates a modal value of a tunnel current that arises when a nucleotide or polynucleotide for analysis passes through between electrodes, and then employs the calculated modal value. The present invention accordingly enables direct rapid implementation to identify nucleotides and to determine a nucleotide sequence in a polynucleotide without marking.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: November 24, 2015
    Assignee: OSAKA UNIVERSITY
    Inventors: Masateru Taniguchi, Makusu Tsutsui, Kazumichi Yokota, Tomoji Kawai
  • Publication number: 20150219593
    Abstract: The analysis method allows analysis of samples with high sensitivity, irrespective of interelectrode distance. The method includes: a step of applying a voltage between a first electrode pair such that an electric field is formed in a direction intersecting a migration direction of a sample; a step of placing a solution, including an electrochemically active molecule that produces a redox reaction at the electrode pair, between the first electrode pair; a step of causing the sample to migrate; and a step of measuring an amount of change in current flow between the first electrode pair.
    Type: Application
    Filed: August 2, 2013
    Publication date: August 6, 2015
    Inventors: Tomoji Kawai, Takahito Ohshiro, Masateru Taniguchi
  • Publication number: 20140374255
    Abstract: According to one embodiment, provided is a single particle analyzing device including a measuring vessel, first and second chambers in the vessel defined by an insulating membrane, a pore opening in the membrane to connect the chambers, and first and second electrodes in the chambers. Electric current flows between the electrodes through the pore. Electrical characteristics are measured during migration of the target from the first chamber to the second chamber to measure the size and shape of the target. (a) t<a <d?100a or (b) s<L, s<d?100s, t<L and t<d, wherein a, L and s are the diameter, length and width of the target, d is the diameter of the pore, and t is the thickness of the membrane in the proximity to the pore.
    Type: Application
    Filed: September 12, 2014
    Publication date: December 25, 2014
    Applicants: KABUSHIKI KAISHA TOSHIBA, OSAKA UNIVERSITY
    Inventors: Sadato HONGO, Tomoji KAWAI, Makusu TSUTSUI, Masateru TANIGUCHI, Soh RYUZAKI
  • Publication number: 20140300339
    Abstract: The present invention provides technology that uses current measurements to identify nucleotides and determine a nucleotide sequence in polynucleotides. The present invention calculates a modal value of a tunnel current that arises when a nucleotide or polynucleotide for analysis passes through between electrodes, and then employs the calculated modal value. The present invention accordingly enables direct rapid implementation to identify nucleotides and to determine a nucleotide sequence in a polynucleotide without marking.
    Type: Application
    Filed: March 1, 2011
    Publication date: October 9, 2014
    Applicant: OSAKA UNIVERSITY
    Inventors: Masateru Taniguchi, Makusu Tsutsui, Kazumichi Yokota, Tomoji Kawai
  • Publication number: 20140183040
    Abstract: The present invention provides a method and apparatus for controlling the moving speed of a substance, both of which can adjust the moving speed of a substance to a desired speed. The control method and control apparatus cause a substance to pass through an internal space, in which an electro-osmotic flow is generated, of a surround electrode formed so as to surround part of the moving path of the substance, whereby the control method and control apparatus change the moving speed of the substance.
    Type: Application
    Filed: August 26, 2013
    Publication date: July 3, 2014
    Inventors: Tomoji Kawai, Soh Ryuzaki, Masateru Taniguchi
  • Publication number: 20140055150
    Abstract: A maximum current value and pulse continuation duration are measured for each of plural pulses of tunnel current arising as a polynucleotide passes through between an electrode pair, and the polynucleotide base sequence is determined based on the maximum current value and the pulse continuation duration.
    Type: Application
    Filed: March 29, 2013
    Publication date: February 27, 2014
    Applicant: OSAKA UNIVERSITY
    Inventors: Tomoji Kawai, Takahito Ohshiro, Kazuki Matsubara, Masayuki Furuhashi, Makusu Tsutsui, Masateru Taniguchi
  • Publication number: 20140031995
    Abstract: Provided are: a control method and control device for the movement speed of a substance which are capable of controlling the movement speed of the substance with good precision, and of raising the durability of the device; and a use therefor. An substance with charge is caused to move by a movement path formed by a first electrical field and a second electrical field that are formed in directions that intersect with each other.
    Type: Application
    Filed: January 29, 2013
    Publication date: January 30, 2014
    Applicant: OSAKA UNIVERSITY
    Inventors: Tomoji Kawai, Makusu Tsutsui, Masateru Taniguchi
  • Patent number: 8304761
    Abstract: In an organic field effect transistor with an electrical conductor-insulator-semiconductor structure, the semiconductor layer is made of an organic compound, and the insulator layer is made of a polymer obtained through polymerization or copolymerization of 2-cyanoethyl acrylate and/or 2-cyanoethyl methacrylate.
    Type: Grant
    Filed: March 25, 2008
    Date of Patent: November 6, 2012
    Assignees: Osaka University, Shin-Etsu Chemical Co., Ltd.
    Inventors: Masateru Taniguchi, Tomoji Kawai, Hideyuki Kawaguchi, Ikuo Fukui
  • Patent number: 8288762
    Abstract: An organic field effect transistor (OFET) having a structure of a conductor layer/an insulator layer/a semiconductor layer is provided. This OFET comprises an insulator layer formed by mixing a polymer compound produced by polymerizing or copolymerizing a monomer represented by the formula (1): CH2?CHCOO—(CH2)2—CN??(1) and/or a monomer represented by the formula (2): CH2?C(CH3)COO—(CH2)2—CN??(2) with a polymerizable and/or crosslinkable organic compound other than the monomer represented by the formula (1) or (2); and a semiconductor layer comprising an organic compound.
    Type: Grant
    Filed: August 31, 2009
    Date of Patent: October 16, 2012
    Assignees: Osaka University, Shin-Etsu Chemical Co., Ltd.
    Inventors: Masateru Taniguchi, Tomoji Kawai, Hideyuki Kawaguchi, Ikuo Fukui
  • Patent number: 8203112
    Abstract: A device includes an electron emission source array including a plurality of electron emission sources, a photoelectric conversion film disposed to face the electron emission source array, and an intermediate electrode provided between the electron emission source array and the photoelectric conversion film, and an intermediate electrode current detector that applies a positive potential, relative to a potential of the electron emission source array, to the intermediate electrode and detects a current flowing in the intermediate electrode.
    Type: Grant
    Filed: July 16, 2009
    Date of Patent: June 19, 2012
    Assignees: Pioneer Corporation, Nippon Hoso Kyokai, Hamamatsu Photonics K.K, Futaba Corporation
    Inventors: Yoshiyuki Okuda, Masakazu Nanba, Norifumi Egami, Akira Kobayashi, Hideyuki Suzuki, Sigeo Itoh, Masateru Taniguchi
  • Patent number: 8203611
    Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film, wherein the control and drive circuit is further configured to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film in any one or more blanking periods excluding both a blanking period immediately following the given video signal output period and a blanking period immediately preceding a next video signal output period in which the one or more horizontal scan lines will be selected next time.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: June 19, 2012
    Assignees: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, Pioneer Corporation
    Inventors: Yuki Honda, Masakazu Namba, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Yoshiyuki Okuda, Kazuto Sakemura
  • Patent number: 8044596
    Abstract: Electron-emissive drive units of electron-emissive elements capable of being arranged with a smaller pitch. FET and emitter array units exist in matrix element areas partitioned by a control wiring and data wiring. An exemplary unit is composed of four emitter arrays. The control wiring and data wiring are driven by first and second drive circuits, respectively. Corresponding arrays between units are connected by selection wiring and driven by a third drive circuit. The third drive circuit drives each unit of data wiring every time the drive circuit sequentially drives the four units of control wiring, and the emitter array drive circuit drives each emitter array selection wiring every time the drive circuit sequentially drives the three units of data wiring. Electrons can be emitted in units of arrays smaller than the unit.
    Type: Grant
    Filed: October 15, 2008
    Date of Patent: October 25, 2011
    Assignees: Futaba Corporation, NHK Science & Technical Research Laboratories
    Inventors: Masateru Taniguchi, Takahiro Niiyama, Shigeo Itoh, Kazuhito Nakamura, Kenta Miya, Masakazu Namba, Yuki Honda, Toshihisa Watabe, Norifumi Egami
  • Patent number: 7834308
    Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form and having a plurality of horizontal scan lines, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more of the horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film to produce a video signal, wherein the control and drive circuit is configured to cause the electron sources included in unselected one or more horizontal scan lines not selected in the given video signal output period to emit electrons toward the photoelectric conversion film in a blanking period immediately preceding the given video signal output period.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: November 16, 2010
    Assignees: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, Pioneer Corporation
    Inventors: Masakazu Namba, Yuki Honda, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Yoshiyuki Okuda, Nobuyasu Negishi
  • Patent number: 7723664
    Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form and having a plurality of horizontal scan lines, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more of the horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film to produce a video signal, wherein the control and drive circuit is configured to control electron emission of the electron emission array in a blanking period in response to a signal level of the video signal produced in the given video signal output period.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: May 25, 2010
    Assignees: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, Pioneer Corporation
    Inventors: Yuki Honda, Masakazu Namba, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Takahiro Niiyama, Yoshiyuki Okuda
  • Publication number: 20100051927
    Abstract: An organic field effect transistor (OFET) having a structure of a conductor layer/an insulator layer/a semiconductor layer is provided. This OFET comprises an insulator layer formed by mixing a polymer compound produced by polymerizing or copolymerizing a monomer represented by the formula (1): CH2?CHCOO—(CH2)2—CN ??(1) and/or a monomer represented by the formula (2): CH2?C(CH3)COO—(CH2)2—CN ??(2) with a polymerizable and/or crosslinkable organic compound other than the monomer represented by the formula (1) or (2); and a semiconductor layer comprising an organic compound.
    Type: Application
    Filed: August 31, 2009
    Publication date: March 4, 2010
    Inventors: Masateru TANIGUCHI, Tomoji Kawai, Hideyuki Kawaguchi, Ikuo Fukui