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).
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Publication number: 20230085307Abstract: 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: ApplicationFiled: April 1, 2020Publication date: March 16, 2023Applicant: NISSAN CHEMICAL CORPORATIONInventors: Yuuki TANAKA, Motoyoshi IWASA, Masamitsu INABA, Daisuke TANIMA, Permana HADIAN, Yuto USUI, Takamasa FURUHASHI
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Patent number: 11496041Abstract: 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: GrantFiled: January 28, 2021Date of Patent: November 8, 2022Assignee: Hitachi Power Semiconductor Device, Ltd.Inventors: Daisuke Ikarashi, Toru Masuda, Seiichi Hayakawa, Yuji Takayanagi, Masamitsu Inaba
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Publication number: 20210296979Abstract: 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: ApplicationFiled: January 28, 2021Publication date: September 23, 2021Inventors: Daisuke IKARASHI, Toru MASUDA, Seiichi HAYAKAWA, Yuji TAKAYANAGI, Masamitsu INABA
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Patent number: 10374414Abstract: 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: GrantFiled: December 23, 2015Date of Patent: August 6, 2019Assignee: HITACHI POWER SEMICONDUCTOR DEVICE, LTD.Inventors: Keisuke Horiuchi, Daisuke Kawase, Masamitsu Inaba, Katsuaki Saito
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Patent number: 9738634Abstract: 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: GrantFiled: September 11, 2014Date of Patent: August 22, 2017Assignee: Syngenta Participations AGInventors: Yoshihiko Nakaya, Yoshihide Masuzawa, Takamasa Furuhashi, Yuuki Miyakado, Hiroyasu Hotta, Masamitsu Inaba
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Patent number: 9708314Abstract: 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: GrantFiled: May 30, 2014Date of Patent: July 18, 2017Assignee: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Yoshihiko Nakaya, Daisuke Tanima, Masamitsu Inaba, Yuuki Miyakado, Takamasa Furuhashi, Kazushige Maeda
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Publication number: 20160221998Abstract: 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: ApplicationFiled: September 11, 2014Publication date: August 4, 2016Applicant: SYNGENTA PARTICIPATIONS AGInventors: Yoshihiko NAKAYA, Yoshihide MASUZAWA, Takamasa FURUHASHI, Yuuki MIYAKADO, Hiroyasu HOTTA, Masamitsu INABA
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Publication number: 20160190915Abstract: 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: ApplicationFiled: December 23, 2015Publication date: June 30, 2016Inventors: Keisuke HORIUCHI, Daisuke KAWASE, Masamitsu INABA, Katsuaki SAITO
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Publication number: 20160108037Abstract: 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: ApplicationFiled: May 30, 2014Publication date: April 21, 2016Applicant: NISSAN CHEMICAL INDUSTRIES, LTD.Inventors: Yoshihiko NAKAYA, Daisuke TANIMA, Masamitsu INABA, Yuuki MIYAKADO, Takamasa FURUHASHI, Kazushige MAEDA
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Patent number: 8422244Abstract: 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: GrantFiled: March 3, 2011Date of Patent: April 16, 2013Assignee: Hitachi, Ltd.Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
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Patent number: 8411454Abstract: 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: GrantFiled: September 22, 2011Date of Patent: April 2, 2013Assignee: Hitachi, Ltd.Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
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Patent number: 8369100Abstract: 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: GrantFiled: March 1, 2011Date of Patent: February 5, 2013Assignee: Hitachi, Ltd.Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
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Patent number: 8243463Abstract: 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: GrantFiled: March 1, 2010Date of Patent: August 14, 2012Assignee: Hitachi, Ltd.Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
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Publication number: 20120153719Abstract: 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: ApplicationFiled: July 22, 2010Publication date: June 21, 2012Applicant: Hitachi Automotive Systems, Ltd.Inventors: Masamitsu Inaba, Naoki Sakurai
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Publication number: 20120008357Abstract: 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: ApplicationFiled: September 22, 2011Publication date: January 12, 2012Applicant: Hitachi, Ltd.Inventors: Katsunori AZUMA, Masamitsu INABA, Mutsuhiro MORI, Kenichiro NAKAJIMA
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Patent number: 7974101Abstract: 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: GrantFiled: November 16, 2006Date of Patent: July 5, 2011Assignee: Hitachi, Ltd.Inventors: Katsunori Azuma, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
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Publication number: 20110149625Abstract: 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: ApplicationFiled: March 1, 2011Publication date: June 23, 2011Applicant: Hitachi, Ltd.Inventors: Katsunori AZUMA, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
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Publication number: 20110149467Abstract: 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: ApplicationFiled: March 3, 2011Publication date: June 23, 2011Applicant: Hitachi, Ltd.Inventors: Katsunori AZUMA, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
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Publication number: 20100155158Abstract: 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: ApplicationFiled: March 1, 2010Publication date: June 24, 2010Applicant: Hitachi, Ltd.Inventors: Katsunori AZUMA, Masamitsu Inaba, Mutsuhiro Mori, Kenichiro Nakajima
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Patent number: 7570008Abstract: 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: GrantFiled: July 30, 2007Date of Patent: August 4, 2009Assignee: Hitachi, Ltd.Inventors: Masamitsu Inaba, Katsunori Azuma, Mutsuhiro Mori, Kinya Nakatsu