Patents Assigned to National University Corporation Toyohashi University of Technology
  • Patent number: 8536930
    Abstract: A switching circuit according to one embodiment includes: a switching element that has a first terminal and a second terminal, and is driven by a pulse signal to switch a conduction state between the first and second terminals; a power source section that supplies a voltage to the first terminal; a load circuit that is connected in parallel with the power source section; a passive circuit section that is connected between a connection point between the power source section and the load circuit, and the first terminal, and suppresses a current flowing from the connection point to the switching element at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse signal; and a resonant circuit section that is connected between the passive circuit section and the connection point, and resonates at the frequency of N times.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: September 17, 2013
    Assignees: Sumitomo Electric Industries, Ltd., National University Corporation Toyohashi University of Technology
    Inventors: Satoshi Hatsukawa, Nobuo Shiga, Kazuhiro Fujikawa, Takashi Ohira, Kazuyuki Wada, Tuya Wuren, Kazushi Sawada, Hiroshi Ishioka
  • Patent number: 8494310
    Abstract: A novel search method having an advantage over the DSR 472 method the search accuracy of which is currently said to be the highest level is proposed. At the feature value computation stage, the two-dimensional image used in computation of the three-dimensional model feature value (excluding a contour feature value) is corrected so that the gray scales of the pixels are emphasized more as the distance from the center of the two-dimensional image increases.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: July 23, 2013
    Assignee: National University Corporation Toyohashi University of Technology
    Inventors: Masaki Aono, Yohei Seki, Atsushi Tatsuma
  • Patent number: 8486722
    Abstract: A sensing method for biopolymers by detecting the magnetic signal generated from a labeled biopolymer under AC magnetic field with thermo-responsive magnetic nano particles as label having a critical solution temperature across which the particles have the ability to aggregate or disperse with cooling or heating.
    Type: Grant
    Filed: December 13, 2012
    Date of Patent: July 16, 2013
    Assignees: National University Corporation Toyohashi University of Technology, JNC Corporation
    Inventors: Saburo Tanaka, Shinji Katsura, Noriyuki Ohnishi, Kageaki Matsui
  • Publication number: 20130177835
    Abstract: By using a composite material that is produced from an acid salt of an oxo acid compound and an azole compound, a proton conductor with good proton conductivity properties under medium temperature, non-humidified conditions may be achieved. The composite material may be produced by mechanical milling of the acid salt of the oxo acid compound and the azole compound using a planetary ball mill The structure of the composite material obtained by the mixing processing may be different from that of a mixture of the acid salt of the oxo acid compound and the azole compound. Therefore, it may be possible to produce the proton conductor that has good proton conductivity properties under medium temperature, non-humidified conditions with a simple method of mechanical mixing.
    Type: Application
    Filed: July 22, 2011
    Publication date: July 11, 2013
    Applicant: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Song-Yul Oh, Toshihiro Yoshida, Go Kawamura, Atsunori Matsuda, Hiroyuki Muto, Daisuke Uchihori
  • Publication number: 20130134994
    Abstract: Contacting a pair of electrodes with soil, applying an alternate current input electric signal to one of the pair of electrodes, comparing a phase of an output electric signal from the other of the pair electrodes with a phase of the input electric signal; and determining the concentration of the ionic solute included in the solvent according to a difference of the phases. The difference of the phases is not dependent on the water content. An electrical conductivity is proportional to a water content and ion concentration, thereby, the water content of soil is available according to the measured electrical conductivity, while determining the ion concentration.
    Type: Application
    Filed: June 14, 2011
    Publication date: May 30, 2013
    Applicant: NATIONAL UNIVERSITY CORPORATION, TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Masato Futagawa, Kazuaki Sawada
  • Publication number: 20130135046
    Abstract: A switching circuit 33 comprises a connection circuit cascade-connecting control terminals for controlling switching of n number of transistors M1-Mn via n?1 number of coils L1 respectively (n is an integer equal to or more than 2; and coils L3 respectively connected between one end of each of the transistors M1-Mn and other end of a coil L2, one end of the coil L2 being electrically connected to a DC power source. The transistors M1-Mn is sequentially switched with PWM signals inputted to an input terminal of the connection circuit. The switching circuit 33 further comprises a transistor M0 inserted at the one end or the other end of the coil L2 in cascade-connection.
    Type: Application
    Filed: October 26, 2012
    Publication date: May 30, 2013
    Applicants: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY, Sumitomo Electric Industries, Ltd.
    Inventors: Sumitomo Electric Industries, Ltd., National University Corporation Toyohashi Univers
  • Publication number: 20130120890
    Abstract: Provided is a transistor protection circuit capable of appropriately protecting a transistor even when a switching frequency is high. A transistor protection circuit according to an embodiment of the present invention is a transistor protection circuit for protecting a voltage-driven transistor that is switch-controlled by the application of a high-potential-side voltage or low-potential-side voltage of a power supply to a gate terminal of the transistor by a drive circuit. The transistor protection circuit has a power supply controller that gradually lowers the high-potential-side voltage of the power supply upon receiving a protection command for executing protection of the transistor.
    Type: Application
    Filed: October 31, 2012
    Publication date: May 16, 2013
    Applicants: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY, SUMITOMO ELECTRIC INDUSTRIES, LTD.
    Inventors: SUMITOMO ELECTRIC INDUSTRIES, LTD., National University Corporation TOYOHASHI UNIV
  • Patent number: 8388893
    Abstract: A combined detector capable of simultaneously detecting both a value indicating a physical/chemical phenomenon such as a pH value and the intensity of an energy beam such as light. The combined detector comprises a physical/chemical phenomenon detecting system (10) and an energy beam detecting system. The physical/chemical phenomenon detecting system (10) has a sensing section (21) whose potential varies with a physical/chemical phenomenon, a charge supply section (22) for supplying first charge to the sensing section, a charge supply control section (23) provided between the sensing section (21) and the charge supply section (22), a first charge storage section (26) for storing the first charge transferred from the sensing section (21), and a charge transfer control section (27) provided between the sensing section (21) and the first charge storage section (26).
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: March 5, 2013
    Assignee: National University Corporation Toyohashi University of Technology
    Inventors: Kazuaki Sawada, Junichi Matsuo, Hirokazu Nakazawa
  • Publication number: 20130049862
    Abstract: A switching circuit according to one embodiment has: N switching elements; a connection circuit including N?1 first inductance elements that are connected in series; a second inductance element; and N third inductance elements. Control terminals of the N switching elements are connected to ends of the connection circuit and connection contacts, respectively. One end of the second inductance element is connected to a power supply. The N third inductance elements electrically connects one ends of the N switching elements and the other end of the second inductance element with each other, respectively.
    Type: Application
    Filed: March 28, 2011
    Publication date: February 28, 2013
    Applicants: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY, Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Ohira, Kazuyuki Wada, Mitsutoshi Nakata, Kazushi Sawada, Satoshi Hatsukawa, Nobuo Shiga, Kazuhiro Fujikawa
  • Patent number: 8383295
    Abstract: A composition for holographic recording medium, which can be coated in a uniform thickness and enables to simply produce a high definition holographic recording medium is provided. And a holographic medium having a low error rate, high storage capacity, high-performance, high-density, which is produced using the composition for the holographic recording medium, is also provided. The composition comprises a (meth)acrylic acid ester group-containing polymerizable substance, an alicyclic epoxy group-containing cationical polymerizable substance of which is ring-opening polymerized by heat, and a hydroxyl group-containing substance which is reactive with the alicyclic epoxy group-containing cationical polymerizable substance. The holographic recording medium is produced by forming a holographic recording layer on a substrate by applying the composition on the base material and polymerizing the alicyclic epoxy group-containing cationical polymerizable substance and the hydroxyl group-containing substance.
    Type: Grant
    Filed: July 23, 2008
    Date of Patent: February 26, 2013
    Assignees: Kyoeisha Chemical Co., Ltd., National University Corporation Toyohashi University of Technology
    Inventors: Junichi Ikeda, Nobuya Morishita, Ryo Arai, Chisato Katahira, Yoshihiro Takatani, Kouzaburo Yokouchi, Mitsuteru Inoue, Pang Boey Lim
  • Patent number: 8372659
    Abstract: The present invention provides a highly sensitive sensing device for biopolymers which detects the magnetic signal generated from a labeled biopolymer under AC magnetic field using thermo-responsive magnetic nano particles as a probe.
    Type: Grant
    Filed: March 14, 2007
    Date of Patent: February 12, 2013
    Assignees: National University Corporation Toyohashi University of Technology, JNC Corporation
    Inventors: Saburo Tanaka, Shinji Katsura, Noriyuki Ohnishi, Kageaki Matsui
  • Publication number: 20120326774
    Abstract: A switching circuit according to one embodiment includes: a switching element that has a first terminal and a second terminal, and is driven by a pulse signal to switch a conduction state between the first and second terminals; a power source section that supplies a voltage to the first terminal; a load circuit that is connected in parallel with the power source section; a passive circuit section that is connected between a connection point between the power source section and the load circuit, and the first terminal, and suppresses a current flowing from the connection point to the switching element at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse signal; and a resonant circuit section that is connected between the passive circuit section and the connection point, and resonates at the frequency of N times.
    Type: Application
    Filed: June 27, 2012
    Publication date: December 27, 2012
    Applicants: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY, Sumitomo Electric Industries, Ltd.
    Inventors: Satoshi HATSUKAWA, Nobuo SHIGA, Kazuhiro FUJIKAWA, Takashi OHIRA, Kazuyuki WADA, Tuya WUREN, Kazuya ISHIOKA, Kazushi SAWADA, Hiroshi Ishioka
  • Patent number: 8330458
    Abstract: There is provided a nondestructive inspection apparatus using a SQUID magnetic sensor which allows nondestructive and accurate detection of magnetic particles in an insulator such as an electronic device or in a magnetizable member. The nondestructive inspection apparatus using the SQUID magnetic sensor comprises: a magnet for horizontal magnetization 4, the magnet applying a magnetic field to a specimen in the longitudinal direction of the specimen 3?; an inspection unit on which a specimen 3 is set, the specimen 3 being horizontally magnetized in the longitudinal direction by the magnet for horizontal magnetization 4; and belt conveyers 2, 5 for conveying the horizontally magnetized specimen 3; and a gradiometer 8 for detecting a particle horizontally magnetized along with a magnetizable member as the horizontally magnetized specimen 3.
    Type: Grant
    Filed: March 5, 2009
    Date of Patent: December 11, 2012
    Assignee: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Saburo Tanaka, Yoshimi Hatsukade
  • Publication number: 20120306288
    Abstract: A switching circuit according to one embodiment includes first to fourth semiconductor switch elements. A pulse-like signal is applied to each input terminal of the switch elements such that when the first and fourth switch elements are in an ON (OFF) state, the remaining switch elements are in an OFF (ON) state. The switching circuit includes first and second capacitance elements. The first capacitance elements connected between an output terminal of the second semiconductor switch element and the second capacitance elements connected between an input terminal of the second semiconductor switch element and an output terminal of the fourth semiconductor switch element has a capacitance to reduce a parasitic capacitance between the input and output terminals of each of the fourth and second switch elements at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse-like signal.
    Type: Application
    Filed: June 6, 2012
    Publication date: December 6, 2012
    Applicants: National University Corporation Toyohashi University Of Technology, Sumitomo Electric Industries, Ltd.
    Inventors: Kazuhiro Fujikawa, Nobuo Shiga, Takashi Ohira, Kazuyuki Wada, Kazuya Ishioka, Hiroshi Ishioka
  • Publication number: 20120306563
    Abstract: A switching circuit according to one embodiment is a switching circuit including at least one semiconductor switch element having an input, output, and a common terminals, a pulse-like signal being applied between the input and common terminals to switch a current between the output and common terminals. The switching circuit further includes a capacitance suppression element section connected at least one of between the input and output terminals, between the input terminal common terminals, and between the output and common terminals. The capacitance suppression element section reduces a parasitic capacitance between the terminals of the semiconductor switch element where the capacitance suppression element section is connected to less than that obtained when the capacitance suppression element section is not connected at a frequency N times (N is an integer of 1 or more) as high as a clock frequency of the pulse-like signal.
    Type: Application
    Filed: June 6, 2012
    Publication date: December 6, 2012
    Applicants: National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY, Sumitomo Electric Industries, Ltd.
    Inventors: Kazuhiro FUJIKAWA, Nobuo Shiga, Takashi Ohira, Kazuyuki Wada, Kazuya Ishioka, Hiroshi Ishioka
  • Publication number: 20120231354
    Abstract: A composite membrane that can be used as an electrolyte membrane of a fuel cell is produced from a resin material that contains at least polybenzimidazole and from a composite material that is produced from of hydrogen sulfate and heteropoly acid. The composite membrane has a basic structure of an aromatic hydrocarbon that does not contain fluorine and has good efficiency, even at a low doping level, so it can be used for the electrolyte membrane of a medium temperature dry fuel cell. Phosphoric acid is doped into the composite membrane. Characteristics of the relationship between output current density and output voltage for an electrolyte membrane that is made from the created composite membrane (a specimen 4) are better than for a specimen 8, in which the amount of phosphoric acid doping is equivalent.
    Type: Application
    Filed: May 24, 2012
    Publication date: September 13, 2012
    Applicant: NATIONAL UNIVERSITY CORPORATION TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Atsunori MATSUDA, Song-Yul OH, Toshihiro Yoshida, Go Kawamura, Junichi Hamagami, Mototsugu Sakai
  • Patent number: 8202472
    Abstract: A method for controlling a ladle to pour molten metal into a mold. The method comprises producing a mathematical model describing a relationship between a measured electrical voltage supplied to a servomotor for tilting the ladle and a flow rate of the molten metal flowing out of the ladle when the ladle is tilted; solving an inverse problem of the mathematical model; estimating the flow rate of the molten metal using a state observer having an exponential damping that uses an extended Kalman filter, based on the measured electrical voltage and a weight of the molten metal poured into the mold; processing the flow rate of the molten metal and a target flow rate of the molten metal with a gain-scheduled PI controller; obtaining a target electrical voltage to be supplied to the servomotor; and controlling the servomotor based on the target electrical voltage.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: June 19, 2012
    Assignees: Sintokogio, Ltd., National University Corporation Toyohashi University of Technology
    Inventors: Yoshiyuki Noda, Kazuhiko Terashima, Takanori Miyoshi, Kazuhiro Ota, Makio Suzuki
  • Patent number: 8193500
    Abstract: A discrimination filtering device includes a filter and a filter having different pass bands, a detection unit, a processing unit, and a result output unit. The detection unit detects an electromagnetic wave from an object that is the target of identification through the filters. The pass band of the filters is designed to be suitable for object discrimination. The processing unit substitutes the output from the detection unit into a discrimination function determined based on the pass band of the filters and the teaching spectrum obtained in advance to infer the group which the object belongs to based on the substituted result.
    Type: Grant
    Filed: March 27, 2009
    Date of Patent: June 5, 2012
    Assignees: National University Corporation Toyohashi University of Technology, Sumitomo Electric Industries, Ltd.
    Inventors: Takashi Iwasaki, Masaharu Mogi, Shigeki Nakauchi
  • Patent number: 8183594
    Abstract: An object of the present invention is to provide a ferroelectric element having excellent properties, which includes a monocrystalline film of ?-Al2O3 formed as a buffer layer on a silicon substrate. The monocrystalline ?-Al2O film is formed on the silicon substrate which is the lowermost layer of an MFMIS structure. On the monocrystalline ?-Al2O3 film, there is formed an electrically conductive oxide in the form of a LaNiO3 film as a lower electrode. On the LaNiO3 film, there is formed a PZT thin film which is a ferroelectric material. On the PZT thin film, there is formed a Pt film as an upper electrode.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: May 22, 2012
    Assignee: National University Corporation Toyohashi University of Technology
    Inventors: Makoto Ishida, Kazuaki Sawada, Daisuke Akai, Yiping Guo
  • Publication number: 20120062968
    Abstract: Provided is a three-dimensional image projector capable of displaying a highly reproducible three-dimensional image in response to changes in a viewer's position and easily accomplishing system downsizing.
    Type: Application
    Filed: March 1, 2010
    Publication date: March 15, 2012
    Applicants: HolyMine Corporation, National University Corporation TOYOHASHI UNIVERSITY OF TECHNOLOGY
    Inventors: Mitsuteru Inoue, Pang Boey Lim, Hideyoshi Horimai