Patents Assigned to National University Corporation Toyohashi University of Technology
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Patent number: 10122288Abstract: A transformer includes a front stage circuit and a rear stage circuit. As a front stage circuit, a switch series unit, which is connected in parallel to a power supply, includes odd-numbered switches and even-numbered switches alternately turned ON. Mutual connection points of the respective switches and points at both ends of the switch series unit are regarded as m nodes in total. Capacitors are provided on at least one of a first electrical path combining odd nodes to lead them to a first output port, and a second electrical path combining even nodes to lead them to a second output port. The capacitors are present so as to correspond to at least (m?1) nodes. The rear stage circuit includes an element series unit, which is composed of a pair of semiconductor elements connected in series to each other for conducting operations of mutually opposite polarities, and necessary inductors.Type: GrantFiled: October 9, 2015Date of Patent: November 6, 2018Assignees: Sumitomo Electric Industries, Ltd., National University Corporation Toyohashi University of TechnologyInventors: Hideaki Nakahata, Kenichi Hirotsu, Takashi Ohira, Kyohei Yamada, Daiya Egashira
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Patent number: 10116197Abstract: A front stage circuit of a transformer includes a switch series unit, capacitors, and a ground electrical path. The switch series unit, connected in parallel to a power supply, includes odd-numbered/even-numbered switches configured to be alternately turned ON. Assuming that mutual connection points of the switches and points at both ends of the switch series unit are m nodes in total, and one of the points at the both ends is a ground node, the capacitors are provided on at least one of a first electrical path that combines odd nodes and leads them to a first output port, and a second electrical path that combines even nodes and leads them to a second output port, and the capacitors are present to correspond to (m?1) nodes excluding the ground node. The ground electrical path connects the ground node directly to the first output port without an interposed capacitor.Type: GrantFiled: October 9, 2015Date of Patent: October 30, 2018Assignees: Sumitomo Electric Industries, Ltd., National University Corporation Toyohashi University of TechnologyInventors: Hideaki Nakahata, Satoshi Hatsukawa, Kenichi Hirotsu, Takashi Ohira, Kyohei Yamada, Daiya Egashira
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Patent number: 10108147Abstract: An image photography play method which is suited to playing a stereoscopic video. The image photography method includes: a step of forming a hologram pattern from a reference light and a subject light; a step of digitally processing the obtained hologram pattern; a step of writing the digitized hologram pattern as a magnetized vector pattern to a spatial lighting modulator which is formed from a magneto-optical material; and a step of inputting linearly polarized light into the spatial lighting modulator and playing an image according to the digitized hologram pattern.Type: GrantFiled: May 31, 2012Date of Patent: October 23, 2018Assignee: NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Mitsuteru Inoue, Hiroyuki Takagi
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Patent number: 10082453Abstract: An airborne microbial measurement apparatus and a measurement method thereof are provided. An airborne microbial measurement apparatus according to an embodiment includes a discharge apparatus including a discharge electrode and a voltage supply unit applying a high voltage to the discharge electrode. A substrate is provided to a side of the discharge apparatus to collect an airborne microbe from air by a high voltage applied to the discharge electrode. A reagent injection apparatus supplies a dyeing reagent to the microbe collected on the substrate or a DNA of the microbe. A light emission measurement apparatus senses a quantity of light generated from the DNA to which the dyeing reagent is supplied. The discharge apparatus includes a controller controlling the voltage supply unit so that the voltage is applied to collect the airborne microbe or destroy an external wall of the collected airborne microbe.Type: GrantFiled: September 19, 2014Date of Patent: September 25, 2018Assignees: LG ELECTRONICS INC., NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Chulwoo Park, Sunghwa Lee, Akira Mizuno, Kazunori Takashima, Hirofumi Kurita, Hachiro Yasuda
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Patent number: 10066199Abstract: An exogenous substance transfer apparatus that introduces an exogenous substance into a small amount of cells by electrical action and a method for manufacturing exogenous substance-bearing cells at low cost are provided. In the introducing an exogenous substance like a gene into a cell, a cell suspension liquid that contains the cell and the exogenous substance is supplied to a container through an opening portion in an amount that is prepared such that a liquid droplet that is formed will not come into contact with a pair of electrodes simultaneously. The liquid droplet is formed in an oil stored in the container, without the cell suspension liquid mixing with the oil. When a direct current voltage is supplied to the electrodes from a power supply, the liquid droplet moves there-between, and the exogenous substance is introduced into the cell within the liquid droplet by electrical action.Type: GrantFiled: December 12, 2013Date of Patent: September 4, 2018Assignee: NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Akira Mizuno, Rika Numano, Hirofumi Kurita
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Publication number: 20180219220Abstract: A negative electrode for use in an iron-air secondary battery of the present invention comprises a three-dimensionally formed structure in which particles of metal powder comprising iron or an iron alloy as a principal component are coupled to each other through metallic bonding, wherein the negative electrode has a porosity of greater than or equal to 30% and less than or equal to 70%. A production method of a negative electrode for an iron-air secondary battery of the present invention comprises: mixing with a resin, metal powder comprising iron or an iron alloy as a principle component; molding a mixture obtained after the mixing; and sintering a molded body obtained after the molding.Type: ApplicationFiled: June 2, 2016Publication date: August 2, 2018Applicants: KABUSHIKI KAISHA KOBE SEIKO SHO (Kobe Steel, Ltd.), NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Kazushi HAYASHI, Hisatoshi SAKAMOTO, Atsunori MATSUDA, Yasutaka MAEDA, Tsubasa SUZUKI
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Patent number: 9975177Abstract: To enable a ladle-tilting automatic pouring device to take less time for identification of the parameters and the device to pour highly precisely by sequentially updating pouring model parameters according to the pouring situation, the present pouring control method is based on a mathematical model of a process from input of control parameters to pouring of molten metal, the method including: identifying, using an optimization technique, a flow rate coefficient, a liquid density, and a pouring start angle that is a tilting angle of the pouring ladle when the flowing of the molten metal starts, which are the control parameters in the mathematical model, based on weight of liquid that flows out of the pouring ladle and tilting angle of the ladle that are measured during pouring, and a command signal that controls the tilting of the pouring ladle; and updating the control parameters to the identified control parameters.Type: GrantFiled: March 27, 2014Date of Patent: May 22, 2018Assignees: National University Corporation University of Yamanashi, Sintokogio, Ltd., National University Corporation Toyohashi University of TechnologyInventors: Yoshiyuki Noda, Takaaki Tsuji, Makio Suzuki, Kazuhiko Terashima
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Patent number: 9976981Abstract: Provided is a charge-transfer-type sensor suitable for high integration while eliminating a potential barrier. A sensor provided with a semiconductor substrate 10 partitioned into a sensing region 5 in which a potential varies in corresponding fashion to a variation in the external environment, a charge input region 2 for supplying charges to the sensing region 5, an input charge control region 3 interposed between the sensing region 5 and the charge input region 2, and a charge accumulation region 7 for accumulating electric charges transported from the sensing region 5, the sensor for detecting the amount of electric charges accumulated in the charge accumulation region 7, wherein a diffusion layer 4 is formed between the input charge control region 3 and the sensing region 5 of the substrate 10, and dopants for producing charges having the same polarity as the charges supplied from the charge input region 2 are diffused in the diffusion layer 4.Type: GrantFiled: January 6, 2016Date of Patent: May 22, 2018Assignee: National University Corporation Toyohashi University of TechnologyInventors: Fumihiro Dasai, Kazuaki Sawada
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Patent number: 9950364Abstract: [Problem to Be Solved] A pouring control method for controlling an automatic pouring device with a tilting-type ladle is provided. By the method, a lip of a pouring ladle approaches a sprue of a mold without striking any object located within the range of its movement. Also, by the method, the molten metal that runs out of the ladle can accurately fill the mold.Type: GrantFiled: February 22, 2013Date of Patent: April 24, 2018Assignees: SINTOKOGIO, LTD., NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Makio Suzuki, Kazuhiko Terashima, Atsushi Ito, Yoshiyuki Noda
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Patent number: 9915629Abstract: The purpose of the present invention is to measure pH of a sample with high accuracy in a pH sensor array, without the use of a glass reference electrode. Each time that a sample is measured, the potential Vrm of the sample is identified, and the identified potential Vrm is used to calculate the pH. The outputs Voi1 and Voi2 of a first element and a second element located near one another in a sensor array are represented as follows. Voi1=Si1×pHi1+Gi1×Vrm+Ci1, Voi2=Si2×pHi2+Gi2×Vrm+Ci2. Voi is the output of the element, Si and Gi are sensitivity coefficients, and Ci is a constant, these values having been derived in advance. Here, where the potential Vrm is constant, and the elements located near one another are presumed to be at equal pH (pHi1=pHi2), the potential Vrm is identified by solving a linear equation with two unknowns.Type: GrantFiled: January 7, 2014Date of Patent: March 13, 2018Assignee: National University Corporation Toyohashi University of TechnologyInventors: Fumihiro Dasai, Kazuaki Sawada, Masato Futagawa
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Patent number: 9841619Abstract: Provided is an optical body capable of arbitrarily and quickly controlling the optical characteristics of incident light. A refractive index variable layer (8) formed of PLZT or other material and a magneto-optical material layer (9) formed of garnet or other material are provided side by side between a first reflective layer (3) and a second reflective layer (5). If linearly polarized light is made incident from the side of the first reflective layer (3), the incident light interacts with the magneto-optical material layer (9) and is converted into a right-circularly polarized light component and a left-circularly polarized light component. A very small retardation occurring between both the right- and left-circularly polarized light components is amplified through multiple reflections between the pair of reflective layers (3, 5) and is controlled according to a controlled refractive index of the refractive index variable layer (8).Type: GrantFiled: October 4, 2010Date of Patent: December 12, 2017Assignee: National University Corporation Toyohashi University of TechnologyInventors: Mitsuteru Inoue, Taichi Goto, Takashi Yamaguchi
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Publication number: 20170294829Abstract: A front stage circuit of a transformer includes a switch series unit, capacitors, and a ground electrical path. The switch series unit, connected in parallel to a power supply, includes odd-numbered/even-numbered switches configured to be alternately turned ON. Assuming that mutual connection points of the switches and points at both ends of the switch series unit are m nodes in total, and one of the points at the both ends is a ground node, the capacitors are provided on at least one of a first electrical path that combines odd nodes and leads them to a first output port, and a second electrical path that combines even nodes and leads them to a second output port, and the capacitors are present to correspond to (m?1) nodes excluding the ground node. The ground electrical path connects the ground node directly to the first output port without an interposed capacitor.Type: ApplicationFiled: October 9, 2015Publication date: October 12, 2017Applicants: Sumitomo Electric Industries, Ltd., NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY, NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Hideaki Nakahata, Satoshi Hatsukawa, Kenichi Hirotsu, Takashi Ohira, Kyohei Yamada, Daiya Egashira
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Publication number: 20170288559Abstract: A transformer includes a front stage circuit and a rear stage circuit. As a front stage circuit, a switch series unit, which is connected in parallel to a power supply, includes odd-numbered switches and even-numbered switches alternately turned ON. Mutual connection points of the respective switches and points at both ends of the switch series unit are regarded as m nodes in total. Capacitors are provided on at least one of a first electrical path combining odd nodes to lead them to a first output port, and a second electrical path combining even nodes to lead them to a second output port. The capacitors are present so as to correspond to at least (m?1) nodes. The rear stage circuit includes an element series unit, which is composed of a pair of semiconductor elements connected in series to each other for conducting operations of mutually opposite polarities, and necessary inductors.Type: ApplicationFiled: October 9, 2015Publication date: October 5, 2017Applicants: Sumitomo Electric Industries, Ltd., National University Corporation Toyohashi University of TechnologyInventors: Hideaki Nakahata, Kenichi Hirotsu, Takashi Ohira, Kyohei Yamada, Daiya Egashira
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Patent number: 9766202Abstract: Provided are a device for detecting chemical and physical phenomenon suitable for high integration, and a method therefor. Rather than using a TG section signal to select pixels that require charge measurement, the on-off timing (the timing for moving the charge from a sensing section to an FD section) of the TG section is harmonized for all pixels, and the release or injection of the charge to the sensing section is separately controlled, whereby the charge is held only in sensing sections of pixels that require charge measurement, and the charge is emptied in sensing sections of pixels that do not require charge measurement. In this state, the TG section of all pixels can be opened at the same time, whereby the charge is transferred to the FD section from only the sensing sections holding a charge, and the charge level of the pixel is detected.Type: GrantFiled: July 13, 2012Date of Patent: September 19, 2017Assignee: National University Corporation Toyohashi University of TechnologyInventors: Fumihiro Dasai, Kazuaki Sawada
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Patent number: 9712069Abstract: A transformer of distributed-constant type is provided between an AC power supply with a frequency f and a load with a resistance value R, and includes: a first converter connected to the AC power supply and having a length of ?/4; and a second converter provided between an end of the first converter and the load, and having a length of ?/4, where a wavelength at the frequency f is ?. Such a transformer has a small size and a light weight, and does not need a coil, an iron core, and the like as used in a conventional transformer.Type: GrantFiled: August 5, 2014Date of Patent: July 18, 2017Assignees: Sumitomo Electric Industries, Ltd., National University Corporation Toyohashi University of TechnologyInventors: Hideaki Nakahata, Nobuo Shiga, Kenichi Hirotsu, Takashi Ohira, Kyohei Yamada
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Patent number: 9689837Abstract: Provided is a small-sized device for measuring an oxidation-reduction potential, whereby an oxidation-reduction current and an oxidation-reduction potential can be measured by reducing noise even when a signal from a solution being measured is small. A device for measuring an oxidation-reduction potential is provided with a substrate (10), a working electrode (15) mounted on a surface of the substrate (10), and a bipolar transistor (21) for amplifying the output of the working electrode (15) also provided on the surface of the substrate (10), and the signal amplified by the bipolar transistor (21) is inputted to a processing circuit (18).Type: GrantFiled: August 9, 2013Date of Patent: June 27, 2017Assignee: National University Corporation Toyohashi University of TechnologyInventors: Masato Futagawa, Kazuaki Sawada, Sou Takahashi
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Patent number: 9685885Abstract: A power conversion apparatus 1 according to an embodiment of the present invention includes a high-voltage side input terminal TIH and a low-voltage side input terminal TIL, first and second output terminals TO1 and TO2, a power conversion circuit 10 that converts direct-current power input between the high-voltage side input terminal TIH and the low-voltage side input terminal TIL to generate alternating-current power between the first and second output terminals TO1 and TO2, and an inverted-voltage generation circuit 30 that generates an inverted voltage of a common mode voltage generated between the first and second output terminals TO1 and TO2 and inputs the inverted voltage to the low-voltage side input terminal TIL.Type: GrantFiled: May 28, 2014Date of Patent: June 20, 2017Assignees: Sumitomo Electric Industries, Ltd., National University Corporation Toyohashi University of TechnologyInventors: Kazuhiro Fujikawa, Takashi Ohira, Minoru Mizutani
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Patent number: 9516299Abstract: A three-dimensional image projector includes: a conversion optical system including a plate-shaped first optical member that has an incidence surface is incident, and an emission surface and that converts a traveling direction of the image light so as to form a predetermined angle between the emission surface and an emission direction of the image light on the emission surface; a rotary driving unit that drives the conversion optical system so as to rotate along the emission surface with a predetermined point on the emission surface as the center of rotation; and an image projection unit that is erected along a rotation axis, converts the traveling direction of the image light emitted from the conversion optical system into a first direction along a surface crossing the rotation axis, and diffuses the image light emitted from the conversion optical system in a second direction along the rotation axis.Type: GrantFiled: September 13, 2012Date of Patent: December 6, 2016Assignees: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY, HolyMine CorporationInventors: Hideyoshi Horimai, Mitsuteru Inoue, Pang Boey Lim
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Patent number: 9482641Abstract: Provided is a device adapted for detecting chemical and physical phenomena and suitable for high integration, and a method for controlling the detection device. When a plurality of pH-detecting devices are used, a variation in sensitivity occurs in each of the sensing units. The variation in sensitivity can be calibrated using a simple method. The amount of charge (output signal) delivered by each of the sensing units to a standard solution is determined, and the difference between the delivered charge amount and a standard charge amount (standard output signal) delivered by a standard sensing unit is determined. The capacity of the potential well of the sensing unit is changed, or the potential of a TG unit when a charge is delivered is changed, so as to cancel out the difference.Type: GrantFiled: August 9, 2012Date of Patent: November 1, 2016Assignee: National University Corporation Toyohashi University of TechnologyInventors: Fumihiro Dasai, Kazuaki Sawada, Hirokazu Nakazawa
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Patent number: 9444032Abstract: A piezoelectric element includes a substrate having a first surface with a predetermined orientation; a lower electrode layered on the first surface of the substrate; a piezoelectric thin film layered on the lower electrode and having a piezoelectric body; and an upper electrode layered on the piezoelectric thin film. A voltage is to be impressed between the lower electrode and the upper electrode to deform the piezoelectric thin film. The piezoelectric thin film is epitaxially grown on the lower electrode using a physical vapor deposition or a chemical vapor deposition.Type: GrantFiled: July 10, 2014Date of Patent: September 13, 2016Assignees: DENSO CORPORATION, National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGYInventors: Noriyuki Matsushita, Hiroyuki Wado, Makoto Ishida, Daisuke Akai