Patents by Inventor Masahiro Kinoshita

Masahiro Kinoshita 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: 20170310152
    Abstract: An uninterruptible power supply apparatus includes a converter (5) configured to convert AC power into DC power, and an inverter (10) configured to convert DC power into AC power and supply the converted power to a load (24). The load (24) is configured to receive an AC voltage within a range of allowable input voltage to consume constant AC power. The uninterruptible power supply apparatus has maximum efficiency ? when a ratio of load capacity to rated capacity of the uninterruptible power supply apparatus is a predetermined value ?. The uninterruptible power supply apparatus further includes a control device (18) configured to control an output voltage of the inverter (10) within the range of allowable input voltage so as to increase the efficiency ?, when the ratio of the load capacity to the rated capacity is different from the predetermined value ?.
    Type: Application
    Filed: November 27, 2014
    Publication date: October 26, 2017
    Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Masaru TOYODA, Masahiro KINOSHITA
  • Publication number: 20170302105
    Abstract: The present uninterruptible power supply apparatus includes a converter (5) configured to convert AC power into DC power; an inverter (10) configured to convert DC power into AC power and supply the converted AC power to a load (24); and a control device (18) configured to control the converter (5) and the inverter (10). The control device (18) is configured to execute a mode selected from a sinusoidal wave output mode and a waveform distortion generation mode. In the sinusoidal wave output mode, an AC voltage (VO) with a sinusoidal waveform and with no waveform distortion is supplied to the load (24). In the waveform distortion generation mode, an AC voltage (VO) with waveform distortion within an allowable range for the load (24) is supplied to the load (24).
    Type: Application
    Filed: December 8, 2014
    Publication date: October 19, 2017
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Masaru TOYODA, Masahiro KINOSHITA
  • Patent number: 9780681
    Abstract: An uninterruptible power supply system includes a plurality of uninterruptible power supply devices, and each uninterruptible power supply device includes a conversion circuit, an inversion circuit, a DC positive bus, a DC negative bus, and a capacitor. The uninterruptible power supply system includes a first wiring connected between DC positive buses of two uninterruptible power supply devices, and a second wiring connected between DC negative buses of the two uninterruptible power supply devices. The operation of all uninterruptible power supply devices is stopped in response to an absolute value of a current flowing through a bundle of the first and second wirings exceeding an upper limit value.
    Type: Grant
    Filed: January 19, 2016
    Date of Patent: October 3, 2017
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Shoichi Abe, Masahiro Kinoshita
  • Patent number: 9775266
    Abstract: An uninterruptible power supply apparatus includes a cooler cooling a converter/chopper circuit and a cooler cooling a PWM inverter. The converter/chopper circuit and the cooler make up one integrated unit. Accordingly, a smaller apparatus can be achieved, compared with a conventional apparatus in which a cooler is provided for each of a converter and a chopper.
    Type: Grant
    Filed: November 30, 2016
    Date of Patent: September 26, 2017
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Eduardo Kazuhide Sato, Masahiro Kinoshita, Yushin Yamamoto, Tatsuaki Amboh
  • Publication number: 20170244334
    Abstract: A converter includes: a first transistor (Q1) connected between a first output terminal (T1) and an input terminal (T0); a second transistor (Q2) connected between the input terminal (T0) and a second output terminal (T2); first and second diodes (D1, D2) connected in anti-parallel to the first and second transistors (Q1, Q2), respectively; and a bidirectional switch that is connected between the input terminal (T0) and a third output terminal (T3) and that includes third and fourth transistors (Q3, Q4) and third and fourth diodes (D3, D4). The first and second diodes (D1, D2) and the third and fourth transistors (Q3, Q4) each are formed of a wide band gap semiconductor. The third and fourth diodes (D3, D4) and the first and second transistors (Q1, Q2) each are formed of a semiconductor other than the wide band gap semiconductor.
    Type: Application
    Filed: August 29, 2014
    Publication date: August 24, 2017
    Applicants: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, Mitsubishi Electric Corporation
    Inventors: Keisuke OHNISHI, Masahiro KINOSHITA, Kimiyuki KOYANAGI
  • Publication number: 20170237359
    Abstract: An inverter includes: a first transistor (Q1) connected between a first input terminal (T1) and an output terminal (T4); a second transistor (Q2) connected between the output terminal (T4) and a second input terminal (T2); first and second diodes (D1, D2) connected in anti-parallel to the first and second transistors (Q1, Q2), respectively; and a bidirectional switch that is connected between a third input terminal (T3) and the output terminal (T4) and that includes third and fourth transistors (Q3, Q4) and third and fourth diodes (D3, D4). The first and second transistors (Q1, Q2) and the third and fourth diodes (D3, D4) are each formed of a wide band gap semiconductor. The third and fourth transistors (Q3, Q4) and the first and second diodes (D1, D2) are each formed of a semiconductor other than the wide band gap semiconductor.
    Type: Application
    Filed: August 29, 2014
    Publication date: August 17, 2017
    Applicants: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION, Mitsubishi Electric Corporation
    Inventors: Keisuke OHNISHI, Masahiro KINOSHITA, Kimiyuki KOYANAGI
  • Publication number: 20170212982
    Abstract: The present disclosure includes predicting a three-dimensional structure of one residue mutant of a membrane protein where respective amino acid residues have been substituted by all amino acids, calculating a solvation entropy change in formation of a tertiary structure from a primary structure or formation of the tertiary structure from secondary-structure units within a transmembrane segment, and extracting a candidate of an amino acid mutant to be thermostabilized based on a difference between a solvation entropy change in the membrane protein and a solvation entropy change in the amino acid mutant.
    Type: Application
    Filed: June 24, 2015
    Publication date: July 27, 2017
    Applicant: JAPAN SCIENCE AND TECHNOLOGY AGENCY
    Inventors: Takeshi Murata, Masahiro KINOSHITA, Satoshi YASUDA, Yuuki TAKAMUKU, Kenji MIZUTANI, Nanao SUZUKI, Yuta KAJIWARA
  • Publication number: 20170086329
    Abstract: An uninterruptible power supply apparatus includes a cooler cooling a converter/chopper circuit and a cooler cooling a PWM inverter. The converter/chopper circuit and the cooler make up one integrated unit. Accordingly, a smaller apparatus can be achieved, compared with a conventional apparatus in which a cooler is provided for each of a converter and a chopper.
    Type: Application
    Filed: November 30, 2016
    Publication date: March 23, 2017
    Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Eduardo Kazuhide SATO, Masahiro Kinoshita, Yushin Yamamoto, Tatsuaki Amboh
  • Publication number: 20170076893
    Abstract: An electronic-device seal structure includes a base, a case which covers an upper surface of the base and has an opening at a surface thereof, and a pair of terminals attached to the base. A first clearance sealed with a sealing material is provided between the base and the case, and a second clearance is provided between the pair of terminals attached to an end surface of the base to face each other.
    Type: Application
    Filed: November 21, 2014
    Publication date: March 16, 2017
    Applicant: OMRON Corporation
    Inventors: Kazuhiro TSUTSUI, Masahiro KINOSHITA, Ayaka MIYAKE, Jun SASAKI, Keisuke TSUJI
  • Patent number: 9559612
    Abstract: Four bus bars, which are two positive-electrode-side bus bars connecting a positive electrode of a capacitor series circuit and a positive electrode of a power conversion section, a negative-electrode-side bus bar connecting a negative electrode of the capacitor series circuit and a negative electrode of the power conversion section, and an intermediate connection bus bar connecting in series two smoothing capacitors in the capacitor series circuit, are stacked in close contact with one another via insulating layers, to form a 4-layer bus bar. The two positive-electrode-side bus bars are not adjacent to each other and are connected in parallel to each other. The positive-electrode-side bus bar which is one of them and the negative-electrode-side bus bar are disposed adjacent to each other, thereby to reduce DC wiring inductances of the wiring structure in which the capacitor series circuit and the power conversion section are connected.
    Type: Grant
    Filed: March 14, 2014
    Date of Patent: January 31, 2017
    Assignees: Mitsubishi Electric Corporation, TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Kimiyuki Koyanagi, Masahiro Kinoshita
  • Patent number: 9548630
    Abstract: An uninterruptible power supply apparatus includes a cooler cooling a converter/chopper circuit and a cooler cooling a PWM inverter. The converter/chopper circuit and the cooler make up one integrated unit. Accordingly, a smaller apparatus can be achieved, compared with a conventional apparatus in which a cooler is provided for each of a converter and a chopper.
    Type: Grant
    Filed: March 18, 2009
    Date of Patent: January 17, 2017
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Eduardo Kazuhide Sato, Masahiro Kinoshita, Yushin Yamamoto, Tatsuaki Amboh
  • Publication number: 20170012549
    Abstract: An uninterruptible power supply system includes a plurality of uninterruptible power supply devices, and each uninterruptible power supply device includes a conversion circuit, an inversion circuit, a DC positive bus, a DC negative bus, and a capacitor. The uninterruptible power supply system includes a first fuse connected between DC positive buses of two uninterruptible power supply devices, and a second fuse connected between DC negative buses of the two uninterruptible power supply devices. DC voltages between the plurality of DC positive buses and between the plurality of DC negative buses can be made uniform and a cross current can be suppressed. Even when one uninterruptible power supply device fails and an overcurrent flows between the two DC positive buses and between the two DC negative buses, the failure range can be narrowly limited by the first and second fuses.
    Type: Application
    Filed: January 19, 2016
    Publication date: January 12, 2017
    Applicant: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Shoichi Abe, Masahiro Kinoshita
  • Publication number: 20170012550
    Abstract: An uninterruptible power supply system includes a plurality of uninterruptible power supply devices, and each uninterruptible power supply device includes a conversion circuit, an inversion circuit, a DC positive bus, a DC negative bus, and a capacitor. The uninterruptible power supply system includes a first wiring connected between DC positive buses of two uninterruptible power supply devices, and a second wiring connected between DC negative buses of the two uninterruptible power supply devices. The operation of all uninterruptible power supply devices is stopped in response to an absolute value of a current flowing through a bundle of the first and second wirings exceeding an upper limit value.
    Type: Application
    Filed: January 19, 2016
    Publication date: January 12, 2017
    Applicant: Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Shoichi ABE, Masahiro KINOSHITA
  • Patent number: 9509229
    Abstract: A power conversion circuit connected to a three phase alternating current line is controlled in a PWM system. To control an arm corresponding to each phase, first to third carrier wave signals are generated. The first to third carrier wave signals include two signals having phases, respectively, offset by 180 degrees from each other. This allows a zero phase component to less frequently reach a peak value and be accordingly reduced as time averaged. This can reduce a zero phase harmonic component generated from a power supply apparatus.
    Type: Grant
    Filed: March 30, 2012
    Date of Patent: November 29, 2016
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Tingan Lee, Masahiro Kinoshita, Nobuyuki Nagai, Kazunori Sanada
  • Patent number: 9438135
    Abstract: An electric power converter includes a DC stabilization circuit configured to stabilize a DC voltage from DC power supply, and an inverter configured to convert the DC voltage stabilized by the DC stabilization circuit to an AC voltage. The DC stabilization circuit includes an aluminum electrolytic capacitor configured to smooth the DC voltage, a saturable reactor configured to prevent the DC stabilization circuit from oscillating, and a film capacitor configured to supply a ripple current to the inverter.
    Type: Grant
    Filed: January 7, 2011
    Date of Patent: September 6, 2016
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventor: Masahiro Kinoshita
  • Publication number: 20160111976
    Abstract: Four bus bars, which are two positive-electrode-side bus bars connecting a positive electrode of a capacitor series circuit and a positive electrode of a power conversion section, a negative-electrode-side bus bar connecting a negative electrode of the capacitor series circuit and a negative electrode of the power conversion section, and an intermediate connection bus bar connecting in series two smoothing capacitors in the capacitor series circuit, are stacked in close contact with one another via insulating layers, to form a 4-layer bus bar. The two positive-electrode-side bus bars are not adjacent to each other and are connected in parallel to each other. The positive-electrode-side bus bar which is one of them and the negative-electrode-side bus bar are disposed adjacent to each other, thereby to reduce DC wiring inductances of the wiring structure in which the capacitor series circuit and the power conversion section are connected.
    Type: Application
    Filed: March 14, 2014
    Publication date: April 21, 2016
    Applicants: Mitsubishi Electric Corporation, Toshiba Mitsubishi-Electric Industrial Systems Corporation
    Inventors: Kimiyuki KOYANAGI, Masahiro KINOSHITA
  • Patent number: 9310438
    Abstract: A deposition detection circuit (3) provided in a deposition detection device (1) includes a determination circuit (4) determines whether the movable contact (9) is deposited based on a step input signal and a transient response signal when a drive signal is in an off state. The transient response signal is generated so as to correspond to voltage less than or equal to operating voltage of the electromagnetic relay switch (5) according to an excitation coil (6) and a fixed resistor (R1).
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: April 12, 2016
    Assignee: OMRON CORPORATION
    Inventors: Masahiro Kinoshita, Hiroyuki Iwasaka, Wataru Nakamura
  • Publication number: 20160056460
    Abstract: This positive electrode active material for a nonaqueous electrolyte secondary cell includes a lithium-containing transition metal oxide having a layered structure, the principal arrangement of a transition metal, oxygen, and lithium in the positive electrode active material being represented by an O2 structure. The lithium-containing transition metal oxide: has Li, Mn, Co, and element M in the lithium-containing transition metal layer in the layered structure; and is represented by the general compositional formula Lix[Li?(MnaCobMc)1-?]O2, where 0.5<x<1.1, 0.1<?<0.33, 0.17<a<0.93, 0.03<b<0.50, and 0.04<c<0.33, the element M including one or more elements selected from the group consisting of Ni, Mg, Ti, Fe, Sn, Zr, Nb, Mo, W, and Bi.
    Type: Application
    Filed: March 6, 2014
    Publication date: February 25, 2016
    Applicant: SANYO ELECTRIC CO., LTD.
    Inventors: Hiroshi Kawada, Masahiro Kinoshita
  • Patent number: 9236769
    Abstract: A control unit of an uninterruptible power supply device includes a PWM circuit generating a plurality of PWM signals controlling a plurality of IGBT elements of a power conversion unit; a plurality of output terminals for supplying the plurality of PWM signals to the plurality of IGBTs; and a switching circuit arranging the plurality of PWM signals in order in accordance with the type of the uninterruptible power supply device and supplying the PWM signals to the plurality of output terminals. Accordingly, the control unit can be shared among a plurality of types of uninterruptible power supply devices.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: January 12, 2016
    Assignee: TOSHIBA MITSUBISHI-ELECTRIC INDUSTRIAL SYSTEMS CORPORATION
    Inventors: Eduardo Kazuhide Sato, Masahiro Kinoshita, Yushin Yamamoto, Tatsuaki Amboh, Katsumi Ikeda
  • Patent number: 9202651
    Abstract: A unit for controlling one or more electromagnetic relays, each having a contact point and an exciting coil to which rated power is supplied so as to open and close the contact point, has a control circuit which carries out PWM control so as to keep an electromagnetic relay turned on, after turning on the electromagnetic relay by causing rated power to be supplied to an exciting coil of the electromagnetic relay, and a temperature detecting circuit that detects a resistance value of the exciting coil so as to allow the control circuit to calculate a temperature of the electromagnetic relay. The control circuit changes, depending on external information, a controlling value in accordance with which the PWM control is carried out with respect to the electromagnetic relay. The control circuit detects, from the temperature detecting circuit, a voltage corresponding to the resistance value of the exciting coil.
    Type: Grant
    Filed: July 8, 2013
    Date of Patent: December 1, 2015
    Assignee: OMRON Corporation
    Inventors: Masahiro Kinoshita, Hiroyuki Iwasaka, Wataru Nakamura