Patents by Inventor Masamitsu Inaba

Masamitsu Inaba 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: 20230085307
    Abstract: There is provided an agricultural chemical (in particular, a herbicide). A pyridazinone compound of the following Formula (1): [wherein W1 and X are each independently an oxygen atom or a sulfur atom; R1 and R2 are each independently such as C1-6 alkyl; R3 is such as D-1 to D-8; Y1 is such as a halogen atom; G is such as a hydrogen atom; Z1 is such as C1-6 alkyl; n is an integer of 0, 1, 2, 3, or 4; p5 is an integer of 0, 1, 2, 3, 4, or 5; p4 is an integer of 0, 1, 2, 3, or 4; and p3 is an integer of 0, 1, 2, or 3] and a herbicide including the same.
    Type: Application
    Filed: April 1, 2020
    Publication date: March 16, 2023
    Applicant: NISSAN CHEMICAL CORPORATION
    Inventors: Yuuki TANAKA, Motoyoshi IWASA, Masamitsu INABA, Daisuke TANIMA, Permana HADIAN, Yuto USUI, Takamasa FURUHASHI
  • Patent number: 11496041
    Abstract: The invention provides a gate drive device, a gate drive method, a power semiconductor module, and an electric power conversion device capable of reducing a negative gate surge voltage. The gate drive device drives a semiconductor device constituting an arm in an electric power conversion device. Before a turn-off start of a drive arm, in a counter arm, a voltage between one main terminal of the semiconductor device and a gate terminal of the semiconductor device is charged to a voltage value that is larger, in a positive direction, than a negative voltage of a negative gate power supply and smaller than a gate threshold voltage of the semiconductor device.
    Type: Grant
    Filed: January 28, 2021
    Date of Patent: November 8, 2022
    Assignee: Hitachi Power Semiconductor Device, Ltd.
    Inventors: Daisuke Ikarashi, Toru Masuda, Seiichi Hayakawa, Yuji Takayanagi, Masamitsu Inaba
  • Publication number: 20210296979
    Abstract: The invention provides a gate drive device, a gate drive method, a power semiconductor module, and an electric power conversion device capable of reducing a negative gate surge voltage. The gate drive device drives a semiconductor device constituting an arm in an electric power conversion device. Before a turn-off start of a drive arm, in a counter arm, a voltage between one main terminal of the semiconductor device and a gate terminal of the semiconductor device is charged to a voltage value that is larger, in a positive direction, than a negative voltage of a negative gate power supply and smaller than a gate threshold voltage of the semiconductor device.
    Type: Application
    Filed: January 28, 2021
    Publication date: September 23, 2021
    Inventors: Daisuke IKARASHI, Toru MASUDA, Seiichi HAYAKAWA, Yuji TAKAYANAGI, Masamitsu INABA
  • Patent number: 10374414
    Abstract: A semiconductor power module with which it is possible to suppress the influence of noise given from a main terminal to a control terminal is provided. At least any one of main terminals (positive electrode terminal, negative electrode terminal, alternating current terminal) is so configured that the main terminal includes two parts extended in a common direction. The two parts are, for example, formed of a single component having such as a shape that the component is bifurcated from the outside toward the inside of the semiconductor power module or two different components. The two parts are so structured that the parts are extended in a common direction. Control terminals (gate signal terminal and emitter signal terminal) are so arranged that a laminated portion of the control terminals is sandwiched between one and the other of the two parts to configure the semiconductor power module.
    Type: Grant
    Filed: December 23, 2015
    Date of Patent: August 6, 2019
    Assignee: HITACHI POWER SEMICONDUCTOR DEVICE, LTD.
    Inventors: Keisuke Horiuchi, Daisuke Kawase, Masamitsu Inaba, Katsuaki Saito
  • Patent number: 9738634
    Abstract: Provided are: a heterocyclic amide compound represented by formula (1); and a herbicide containing the heterocyclic amide compound. In the formula, G represents a group represented by formula (G-1) or (G-2); each of W and W1 independently represents an oxygen atom or the like; each of Z1 and Za1 represents a phenyl group or the like; Z2 represents an aromatic heterocycle; each of R1 and R2 independently represents a C1-C6 alkyl group or the like; R3 represents a hydrogen atom, a C1-C6 alkyl group or the like; and each of R4, Ra4, R5, Ra5, R6, Ra6 and R7 independently represents a hydrogen atom or the like.
    Type: Grant
    Filed: September 11, 2014
    Date of Patent: August 22, 2017
    Assignee: Syngenta Participations AG
    Inventors: Yoshihiko Nakaya, Yoshihide Masuzawa, Takamasa Furuhashi, Yuuki Miyakado, Hiroyasu Hotta, Masamitsu Inaba
  • Patent number: 9708314
    Abstract: The present invention provides a heterocyclic amide compound of Formula (1), and an agricultural chemical containing it, particularly a herbicide: in which Q is an aromatic heterocycle of any one of Q-1 to Q-5, W is an aromatic heterocycle of W-1, W-2, or W-3, X is an oxygen atom, etc., R1a is a hydrogen atom, a halogen atom, or C1-6 alkyl, etc., R1b is a hydrogen atom, R1c is C1-6 alkyl, R2a is a halogen atom, or C1-6 alkyl, etc., R2c is C1-6 haloalkyl, R3 is a hydrogen atom, etc., R4a, R4b, R4c and R4d are each independently a hydrogen atom, or C1-6 alkyl, etc., R5a, R5b and R5c are each independently a hydrogen atom, or C1-6 alkyl, etc., and n is an integer of 0, 1, 2 or 3.
    Type: Grant
    Filed: May 30, 2014
    Date of Patent: July 18, 2017
    Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Yoshihiko Nakaya, Daisuke Tanima, Masamitsu Inaba, Yuuki Miyakado, Takamasa Furuhashi, Kazushige Maeda
  • Publication number: 20160221998
    Abstract: Provided are: a heterocyclic amide compound represented by formula (1); and a herbicide containing the heterocyclic amide compound. In the formula, G represents a group represented by formula (G-1) or (G-2); each of W and W1 independently represents an oxygen atom or the like; each of Z1 and Za1 represents a phenyl group or the like; Z2 represents an aromatic heterocycle; each of R1 and R2 independently represents a C1-C6 alkyl group or the like; R3 represents a hydrogen atom, a C1-C6 alkyl group or the like; and each of R4, Ra4, R5, Ra5, R6, Ra6 and R7 independently represents a hydrogen atom or the like.
    Type: Application
    Filed: September 11, 2014
    Publication date: August 4, 2016
    Applicant: SYNGENTA PARTICIPATIONS AG
    Inventors: Yoshihiko NAKAYA, Yoshihide MASUZAWA, Takamasa FURUHASHI, Yuuki MIYAKADO, Hiroyasu HOTTA, Masamitsu INABA
  • Publication number: 20160190915
    Abstract: A semiconductor power module with which it is possible to suppress the influence of noise given from a main terminal to a control terminal is provided. At least any one of main terminals (positive electrode terminal, negative electrode terminal, alternating current terminal) is so configured that the main terminal includes two parts extended in a common direction. The two parts are, for example, formed of a single component having such as a shape that the component is bifurcated from the outside toward the inside of the semiconductor power module or two different components. The two parts are so structured that the parts are extended in a common direction. Control terminals (gate signal terminal and emitter signal terminal) are so arranged that a laminated portion of the control terminals is sandwiched between one and the other of the two parts to configure the semiconductor power module.
    Type: Application
    Filed: December 23, 2015
    Publication date: June 30, 2016
    Inventors: Keisuke HORIUCHI, Daisuke KAWASE, Masamitsu INABA, Katsuaki SAITO
  • Publication number: 20160108037
    Abstract: The present invention provides a heterocyclic amide compound of Formula (1), and an agricultural chemical containing it, particularly a herbicide: in which Q is an aromatic heterocycle of any one of Q-1 to Q-5, W is an aromatic heterocycle of W-1, W-2, or W-3, X is an oxygen atom, etc., R1a is a hydrogen atom, a halogen atom, or C1-6 alkyl, etc., R1b is a hydrogen atom, R1c is C1-6 alkyl, R2a is a halogen atom, or C1-6 alkyl, etc., R2c is C1-6 haloalkyl, R3 is a hydrogen atom, etc., R4a, R4b, R4c and R4d are each independently a hydrogen atom, or C1-6 alkyl, etc., R5a, R5b and R5c are each independently a hydrogen atom, or C1-6 alkyl, etc., and n is an integer of 0, 1, 2 or 3.
    Type: Application
    Filed: May 30, 2014
    Publication date: April 21, 2016
    Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.
    Inventors: Yoshihiko NAKAYA, Daisuke TANIMA, Masamitsu INABA, Yuuki MIYAKADO, Takamasa FURUHASHI, Kazushige MAEDA
  • Patent number: 8422244
    Abstract: A power converter structure in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The power converter structure includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Grant
    Filed: March 3, 2011
    Date of Patent: April 16, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
  • Patent number: 8411454
    Abstract: A capacitor module in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The capacitor module includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: April 2, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
  • Patent number: 8369100
    Abstract: A power converter is disclosed in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The power converter includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors, which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Grant
    Filed: March 1, 2011
    Date of Patent: February 5, 2013
    Assignee: Hitachi, Ltd.
    Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
  • Patent number: 8243463
    Abstract: A capacitor module in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The capacitor module includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Grant
    Filed: March 1, 2010
    Date of Patent: August 14, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
  • Publication number: 20120153719
    Abstract: A semiconductor element control device that controls a semiconductor element that performs switching operation for converting DC power into AC power, or AC power into DC power, includes: a drive unit that outputs a drive signal for controlling the switching operation of the semiconductor element to a terminal of the semiconductor element; a short-circuit detection unit that detects short-circuit of the semiconductor element on the basis of the voltage at the terminal, and outputs a short-circuit detection signal; and a drive interruption unit that interrupts current flowing in the semiconductor element on the basis of the short-circuit detection signal output from the short-circuit detection unit.
    Type: Application
    Filed: July 22, 2010
    Publication date: June 21, 2012
    Applicant: Hitachi Automotive Systems, Ltd.
    Inventors: Masamitsu Inaba, Naoki Sakurai
  • Publication number: 20120008357
    Abstract: A capacitor module in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The capacitor module includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Application
    Filed: September 22, 2011
    Publication date: January 12, 2012
    Applicant: Hitachi, Ltd.
    Inventors: Katsunori AZUMA, Masamitsu INABA, Mutsuhiro MORI, Kenichiro NAKAJIMA
  • Patent number: 7974101
    Abstract: A power converter in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The power converter includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Grant
    Filed: November 16, 2006
    Date of Patent: July 5, 2011
    Assignee: Hitachi, Ltd.
    Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
  • Publication number: 20110149467
    Abstract: A capacitor module in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The capacitor module includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Application
    Filed: March 3, 2011
    Publication date: June 23, 2011
    Applicant: Hitachi, Ltd.
    Inventors: Katsunori AZUMA, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
  • Publication number: 20110149625
    Abstract: A capacitor module in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The capacitor module includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Application
    Filed: March 1, 2011
    Publication date: June 23, 2011
    Applicant: Hitachi, Ltd.
    Inventors: Katsunori AZUMA, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
  • Publication number: 20100155158
    Abstract: A capacitor module in which the structure of a connecting portion is highly resistant against vibration and has a low inductance. The capacitor module includes a plurality of capacitors and a laminate made up of a first wide conductor and a second wide conductor joined in a layered form with an insulation sheet interposed between the first and second wide conductors. The laminate comprises a first flat portion including the plurality of capacitors which are supported thereon and electrically connected thereto, a second flat portion continuously extending from the first flat portion while being bent, and connecting portions formed at ends of the first flat portion and the second flat portion and electrically connected to the exterior.
    Type: Application
    Filed: March 1, 2010
    Publication date: June 24, 2010
    Applicant: Hitachi, Ltd.
    Inventors: Katsunori AZUMA, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
  • Patent number: 7570008
    Abstract: The present invention provides a power module, power converter, and vehicular electric machine system capable of reducing inductance of a peripheral section of an output terminal in a power module, and additionally, reducing a surge voltage. A positive emitter conductor 3 connected to an emitter electrode of a positive power semiconductor element Mpu and an output terminal U are electrically interconnected by using a plurality of aluminum wires 7, a negative collector conductor 4 connected to a collector electrode of a negative power semiconductor element Mnu and the output terminal U are electrically interconnected by using a plurality of aluminum wires 9, and the positive emitter conductor 3 connected to the emitter electrode of the positive power semiconductor element Mpu and the negative collector conductor 4 connected to the collector electrode of the negative power semiconductor element Mnu are further electrically interconnected by using a plurality of aluminum wires 8.
    Type: Grant
    Filed: July 30, 2007
    Date of Patent: August 4, 2009
    Assignee: Hitachi, Ltd.
    Inventors: Masamitsu Inaba, Katsunori Azuma, Mutsuhiro Mori, Kinya Nakatsu