Patents by Inventor Toru Matsumoto

Toru Matsumoto 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).

  • Publication number: 20100315107
    Abstract: An object of this invention is to provide an inexpensive and highly durable electrode which is capable of causing hydrogen peroxide to generate a current output in the same manner as those of platinum or iridium. A working electrode (9) (electrode for electrochemical measurement apparatus (1)) for use in an electrochemical measurement apparatus 3 according to the invention is made of an alloy containing iridium and niobium, and the alloy has such a composition as to enable measurement of the concentration of hydrogen peroxide.
    Type: Application
    Filed: February 9, 2009
    Publication date: December 16, 2010
    Applicants: NEC CORPORATION, NATIONAL INSTITUTE FOR MATERIALS SCIENCE
    Inventors: Toru Matsumoto, Naoaki Sata, Yoko Mitarai
  • Publication number: 20100258452
    Abstract: An object of the present invention is to provide an electrode for an electrochemical measurement apparatus that is less susceptible to influence from interference substances as compared to conventional technology and an electrochemical measurement apparatus using such an electrode. A working electrode 9 (an electrode 1 for an electrochemical measurement apparatus) used in an electrochemical measurement apparatus 3 of the present invention uses an alloy containing iridium and rhenium with such a composition that selectivity for hydrogen peroxide can be obtained.
    Type: Application
    Filed: October 29, 2008
    Publication date: October 14, 2010
    Inventors: Toru Matsumoto, Naoaki Sata, Yoko Mitarai
  • Publication number: 20100187108
    Abstract: A gas-component measurement device includes a housing having an suction port that introduces a measurement-targeted gas, and an exhaust port that discharges the measurement-targeted gas, and a water-absorbing member that is disposed in the housing and impregnated with a solvent that dissolves a gas component, and an electrochemical sensor that detects the gas component trapped by the solvent in the water-absorbing member. The exhaust port and suction port are disposed to oppose each other while sandwiching therebetween the electrochemical sensor.
    Type: Application
    Filed: June 18, 2008
    Publication date: July 29, 2010
    Inventors: Toru Matsumoto, Hidehiko Kuroda, Hideyuki Sato
  • Publication number: 20100083735
    Abstract: The measuring device 1 includes a measurement vessel 13 contained a liquid 12 filled therein, and a sensor 11 provided in the measuring vessel 13 and for detecting components of a gaseous sample dissolved in the liquid 12. The measuring device 1 also includes a bubble-generating unit 14, which is supplied with a gaseous sample and has an aperture 141 for discharging the gaseous sample in form of bubbles into the liquid. The aperture 141 faces the sensor 11 and the bubble-generating unit 14 is disposed to have a predetermined clearance with the sensor 11. A relation of 1/2Y?X?3/2Y is satisfied, where X represents a distance of a clearance between the bubble-generating unit 14 and the sensor 11 and Y represents a diameter of the aperture 141 of the bubble-generating unit 14.
    Type: Application
    Filed: March 19, 2008
    Publication date: April 8, 2010
    Applicant: NEC CORPORATION
    Inventors: Toru Matsumoto, Hideyuki Sato
  • Publication number: 20100046078
    Abstract: It is an object to provide a filter for display comprising only one piece of plastic film as a substrate for price-reduction, using a laminated body having a conductive layer and a functional layer on the substrate and having an electrode capable of electric conduction to a display housing in the peripheral part of the laminate body, and a production method thereof. Provided is a filter for display, which is a laminated body including a conductive layer having a conductive mesh, one plastic film disposed only in one side of said conductive layer, and a functional layer disposed at the viewing side relative to said conductive layer and plastic film and having at least one function selected from antireflection function, hard coat function and antiglare function, which has a cavity reaching at least conductive layer, while penetrating through the functional layer from the surface of the functional layer side, in at least one part of the peripheral part of the laminated body.
    Type: Application
    Filed: August 30, 2007
    Publication date: February 25, 2010
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Takayoshi Kirimoto, Yuko Mikami, Toru Matsumoto
  • Publication number: 20090231049
    Abstract: An oscillation circuit of the present invention includes: an oscillation section for which an output frequency is controlled based on a control signal depending on an ambient temperature; a temperature compensation circuit for supplying the control signal to this oscillation section; and a switching switch circuit consisting of an output buffer and a temperature sensor output switch for which ON and OFF are controlled so that any one of an oscillation output from the oscillation section and a temperature sensor output from the temperature compensation circuit is outputted. The temperature sensor output switch is structured so that transfer gate switches are connected in a two-stage serial manner and a third switch connected to a fixed potential is sandwiched between these connection points. When an oscillation output is outputted, the transfer gate switches are OFF and the third switch is ON and, when a temperature sensor output is outputted, the transfer gate switches are ON and the third switch is OFF.
    Type: Application
    Filed: March 13, 2009
    Publication date: September 17, 2009
    Inventors: Jun Kikuchi, Toru Matsumoto, Kaoru Kanehachi
  • Publication number: 20090190078
    Abstract: The present invention relates to a flat-panel display member, including at least an anti-reflection layer, an electrically conductive layer and a transparent resin layer, having the anti-reflection layer disposed on a first face of the electrically conductive layer, and having the transparent resin layer disposed on a second face on the other side of the first face of the electrically conductive layer, wherein a peripheral portion of the above flat-panel display member has an electrode reaching the above electrically conductive layer or the above transparent resin layer from the outermost surface of said first face side. The present invention provides a flat-panel display member capable of being produced with good production efficiency and excellent in electromagnetic wave shielding performance and visibility, and its manufacturing method.
    Type: Application
    Filed: August 23, 2006
    Publication date: July 30, 2009
    Applicant: TORAY INDUSTRIES, INC.
    Inventors: Yuko Mikami, Takayoshi Kirimoto, Keiji Iwanaga, Toru Matsumoto, Junichi Suga
  • Publication number: 20090076300
    Abstract: It is intended to provide a method for immobilizing, onto a column carrier, a compound having a sulfo group or a compound to which a sulfo group can be added. The method comprises immobilizing the compound onto the column carrier using a linker comprising: a sulfo group-binding group capable of forming a bond with the sulfo group in the compound; and a carrier-binding group capable of forming a bond with a group present on the surface of the column carrier.
    Type: Application
    Filed: September 12, 2008
    Publication date: March 19, 2009
    Applicant: NEC CORPORATION
    Inventors: Minoru ASOGAWA, Toru MATSUMOTO
  • Publication number: 20040185568
    Abstract: An objective of this invention is to prevent deterioration with time of a storage or calibration solution due to, for example, growth of microorganisms or bacteria. Another objective of this invention is to prevent deterioration of, for example, an enzyme or organic layer in an electrode coating of a sensor caused by a storage or calibration solution. Another objective of this invention is to prevent detachment of an organic layer in an electrode coating from an adjacent layer or electrode, caused by a storage or calibration solution. For achieving these objectives, a storage solution 23 and a calibration solution in a sensor comprising an enzyme electrode 18 comprise an electrolyte, a pH buffering agent and a compound containing a heterocycle having nitrogen and sulfur heteroatoms.
    Type: Application
    Filed: January 29, 2004
    Publication date: September 23, 2004
    Applicant: TANITA CORPORATION
    Inventor: Toru Matsumoto
  • Patent number: 6788159
    Abstract: A temperature compensated oscillator keeping the area of a capacitor array and the bit number of a memory from increasing and allowing for high precision is provided. A adjusting method of such a resonator and an integrated circuit for temperature compensated oscillation are also provided. A capacitor array and a variable capacitance diode are connected and used as a load capacitance in an oscillation circuit, and the capacitance value of the former is digital-controlled and that of the latter is analog-controlled, so that the amount of compensation data necessary for the digital control is reduced and highly precise temperature compensation is permitted.
    Type: Grant
    Filed: September 23, 2002
    Date of Patent: September 7, 2004
    Assignee: Nippon Precision Circuits Inc.
    Inventors: Masayuki Takahashi, Toru Matsumoto
  • Patent number: 6780297
    Abstract: A measuring apparatus for a biochemical compound has a channel structure having an inlet port and an outlet port. A passageway extends between the inlet and outlet ports for passing a liquid sample therethrough. The passageway has its inside walls lined with a layer of hydrophilic material. A biosensor is provided in the passageway to detect a biochemical compound contained in the liquid sample. Preferably, the hydrophilic material comprises a metal oxide having a photocatalytic characteristic, which is illuminated with ultraviolet rays.
    Type: Grant
    Filed: December 7, 2001
    Date of Patent: August 24, 2004
    Assignee: NEC Corporation
    Inventors: Toru Matsumoto, Akinobu Nakamura
  • Patent number: 6773563
    Abstract: An electrochemical sensor based on a three-electrode method containing a reference electrode, comprising: A working electrode 2, a counter electrode 3 and a reference electrode 4 formed on an insulating substrate 1; an examining electrode 8 provided to examine an electric potential of the reference electrode 4; a combining layer 20, an immobilized enzyme layer 21 and a diffusion-limiting layer 22 made of a fluororesin provided on voltmeter is provided on these electrodes, between the examining electrode 8 and the reference electrode 4 so that the electric potential of the reference electrode can be examined; to detect an abnormality in the reference electrode immediately after its occurrence, recover a high reliability of measured value by removing the abnormality quickly, make it possible to conduct a continuous measurement for a long time and furthermore try to reduce a running cost.
    Type: Grant
    Filed: August 8, 2001
    Date of Patent: August 10, 2004
    Assignee: NEC Corporation
    Inventor: Toru Matsumoto
  • Publication number: 20040106166
    Abstract: The present invention provides an enzyme electrode exhibiting good measurement performance under wide ranges of the application conditions, being excellent in durability during long-term use and further being producible with a higher yield, as well as a process for manufacturing the enzyme electrode employing a wafer process particularly suitable to mass production.
    Type: Application
    Filed: November 24, 2003
    Publication date: June 3, 2004
    Applicant: NEC CORPORATION
    Inventor: Toru Matsumoto
  • Patent number: 6733643
    Abstract: A measurement apparatus, including a biosensor for carrying out measurement of a specified component in a liquid sample using an enzymatic reaction, a computation processing part for obtaining the computed value by computing an output signal of the biosensor, and a container for storing a calibration liquid for calibrating the biosensor, equipped with temperature control means (a heater 40, a thermostat 41) for keeping the calibration liquid at a constant temperature, saves an installation space by miniaturizing an apparatus, suppresses the running cost, and improves the measurement precision.
    Type: Grant
    Filed: July 30, 2001
    Date of Patent: May 11, 2004
    Assignee: NEC Corporation
    Inventors: Toru Matsumoto, Toru Murakami
  • Patent number: 6733174
    Abstract: A semiconductor temperature detecting circuit use semiconductor temperature sensors each comprising bipolar transistors connected in a Darlington connection to provide a semiconductor temperature detecting circuit capable of automatically compensating for variations in fabrication of a reference voltage for comparing outputs of temperature sensors. The semiconductor temperature detecting circuit includes a first and a second semiconductor temperature sensor each having bipolar transistors connected in Darlington connection and respectively receiving different constant currents (I and nxI). Temperature detected is based on a corresponding relationship between a ratio of output voltages of the first and the second semiconductor temperature sensors and the temperature.
    Type: Grant
    Filed: July 31, 2001
    Date of Patent: May 11, 2004
    Assignee: Nippon Precision Circuits Inc.
    Inventors: Toru Matsumoto, Yasuhiro Mori
  • Patent number: 6709856
    Abstract: A device and method are provided using a sensor containing an electrode with an enzyme layer to determine a component in a liquid sample. Inlet and outlet channels feed liquid sample to and from the sensor surface. The inlet channel is placed an angle of preferably 1 to 80 degrees to the sensor surface, and an inlet channel end opening is at a distance from the sensor surface of preferably two fold or less of an inlet channel inner diameter. The angle and distance provide good measurement accuracy, stable measurement sensitivity and rapid response. The sensor may be vertically sandwiched between upper and lower parts, and be removable from the upper part. Liquid sample is continuously moved from the inlet channel over the sensor surface and discharged through the outlet channel. Liquid sample speed over the sensor surface is adjusted to provide sensor output in proportion to concentration of the liquid.
    Type: Grant
    Filed: March 27, 2001
    Date of Patent: March 23, 2004
    Assignee: NEC Corporation
    Inventors: Toru Matsumoto, Hiroshi Kohashi, Yasuyoshi Matsumoto
  • Patent number: 6688172
    Abstract: In a portable measuring apparatus, a sensor holder for holding a sensor is fixed at an end of a main body, and a fitting member is fixed at the end of the main body. The fitting member has a groove formed on its outer periphery. A cap for encapsulating preserving liquid is provided and has a protrusion corresponding to the groove.
    Type: Grant
    Filed: August 16, 2001
    Date of Patent: February 10, 2004
    Assignee: NEC Corporation
    Inventors: Akio Ohashi, Toru Matsumoto, Hiroshi Kohashi, Akiyoshi Fujitani
  • Publication number: 20030067361
    Abstract: A temperature compensated oscillator keeping the area of a capacitor array and the bit number of a memory from increasing and allowing for high precision is provided. A adjusting method of such a resonator and an integrated circuit for temperature compensated oscillation are also provided. A capacitor array and a variable capacitance diode are connected and used as a load capacitance in an oscillation circuit, and the capacitance value of the former is digital-controlled and that of the latter is analog-controlled, so that the amount of compensation data necessary for the digital control is reduced and highly precise temperature compensation is permitted.
    Type: Application
    Filed: September 23, 2002
    Publication date: April 10, 2003
    Inventors: Masayuki Takahashi, Toru Matsumoto
  • Patent number: 6515548
    Abstract: A temperature compensated oscillator has a frequency comparing circuit for comparing a frequency of an oscillating output signal of an oscillator circuit and a frequency of an external reference frequency signal externally inputted, and also has a sequential comparing register for determining each bit of a compensation datum based on this comparison. A digital signal from the sequential comparing register is applied to an input of a D/A converter for generating a control voltage of a varicap diode. The temperature compensated oscillator performs a self compensating operation for sequentially determining each bit of the sequential comparing register every frequency comparison, and conforming the frequency of the oscillating output signal to that of, the external reference frequency signal. The digital signal from the sequential comparing register is stored as compensating data corresponding to a detecting temperature of a temperature detector at that time.
    Type: Grant
    Filed: May 21, 2001
    Date of Patent: February 4, 2003
    Assignee: Nippon Precision Circuits Inc.
    Inventors: Toru Matsumoto, Masayuki Takahashi
  • Patent number: D525930
    Type: Grant
    Filed: May 10, 2004
    Date of Patent: August 1, 2006
    Assignee: Matsumoto Jidosha Co., Ltd.
    Inventor: Toru Matsumoto