Patents by Inventor Shinsuke Idenoue
Shinsuke Idenoue 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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Patent number: 10455734Abstract: A liquid coolant supplying header is configured on a central portion in the width direction between an upper portion heatsink and a partitioning plate, a liquid coolant discharging header is configured on a central portion in the width direction between a lower portion heatsink and the partitioning plate so as to be parallel to the liquid coolant supplying header, vertical flow channels are formed so as to pass through the partitioning plate vertically on two sides in the width direction so as to be parallel to the liquid coolant supplying header, a liquid coolant distributing structural body is disposed inside the liquid coolant supplying header, and an external shape of the liquid coolant distributing structural body is formed such that flow channel cross-sectional area of the liquid coolant supplying header becomes gradually smaller from an upstream end toward a downstream end.Type: GrantFiled: June 14, 2017Date of Patent: October 22, 2019Assignee: Mitsubishi Electric CorporationInventors: Shigenobu Tochiyama, Seiji Haga, Masayoshi Tamura, Satoshi Ishibashi, Shinsuke Idenoue
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Patent number: 10014776Abstract: A power conversion device provided with a DC power source, a voltage boost converter, an inverter, a primary smoothing capacitor, a secondary smoothing capacitor, an intermediate capacitor provided in the voltage boost converter and three voltage sensors which measure the voltages of the capacitors, further including an abnormality diagnosis controller which makes a diagnosis of the presence/absence of an abnormality in the detection characteristics of the voltage sensors, on the basis of the state of transition of the detection results of the voltage sensors which are monitored during a discharge operation by the respective capacitors.Type: GrantFiled: March 3, 2017Date of Patent: July 3, 2018Assignee: Mitsubishi Electric CorporationInventors: Masaru Kobayashi, Shinsuke Idenoue, Satoshi Ishii, Kazuhiko Otsuka, Junichi Abe
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Publication number: 20180026539Abstract: A power conversion device provided with a DC power source, a voltage boost converter, an inverter, a primary smoothing capacitor, a secondary smoothing capacitor, an intermediate capacitor provided in the voltage boost converter and three voltage sensors which measure the voltages of the capacitors, further including an abnormality diagnosis controller which makes a diagnosis of the presence/absence of an abnormality in the detection characteristics of the voltage sensors, on the basis of the state of transition of the detection results of the voltage sensors which are monitored during a discharge operation by the respective capacitors.Type: ApplicationFiled: March 3, 2017Publication date: January 25, 2018Applicant: Mitsubishi Electric CorporationInventors: Masaru KOBAYASHI, Shinsuke IDENOUE, Satoshi ISHII, Kazuhiko OTSUKA, Junichi ABE
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Publication number: 20170280589Abstract: A liquid coolant supplying header is configured on a central portion in the width direction between an upper portion heatsink and a partitioning plate, a liquid coolant discharging header is configured on a central portion in the width direction between a lower portion heatsink and the partitioning plate so as to be parallel to the liquid coolant supplying header, vertical flow channels are formed so as to pass through the partitioning plate vertically on two sides in the width direction so as to be parallel to the liquid coolant supplying header, a liquid coolant distributing structural body is disposed inside the liquid coolant supplying header, and an external shape of the liquid coolant distributing structural body is formed such that flow channel cross-sectional area of the liquid coolant supplying header becomes gradually smaller from an upstream end toward a downstream end.Type: ApplicationFiled: June 14, 2017Publication date: September 28, 2017Applicant: Mitsubishi Electric CorporationInventors: Shigenobu TOCHIYAMA, Seiji HAGA, Masayoshi TAMURA, Satoshi ISHIBASHI, Shinsuke IDENOUE
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Patent number: 9112429Abstract: A power converter has one set of two semiconductor switches performing switching actions, each of which is formed of an FET and a free wheel diode connected in anti-parallel to the FET, and a smoothing capacitor, and convers power by complementary switching actions of the FETs in the semiconductor switches. The power converter is provided with a current sensor that detects a direction of a current flowing through the semiconductor switches and a gate generation portion that skips ON signals of PWM gate signals of the semiconductor switches when the direction of the current flowing through the semiconductor switches is negative.Type: GrantFiled: February 3, 2012Date of Patent: August 18, 2015Assignee: Mitsubishi Electric CorporationInventors: Matahiko Ikeda, Masaru Kobayashi, Naoki Moritake, Takao Mitsui, Hirotoshi Maekawa, Satoshi Ishibashi, Shinsuke Idenoue
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Publication number: 20140158324Abstract: A liquid coolant supplying header is configured on a central portion in the width direction between an upper portion heatsink and a partitioning plate, a liquid coolant discharging header is configured on a central portion in the width direction between a lower portion heatsink and the partitioning plate so as to be parallel to the liquid coolant supplying header, vertical flow channels are formed so as to pass through the partitioning plate vertically on two sides in the width direction so as to be parallel to the liquid coolant supplying header, a liquid coolant distributing structural body is disposed inside the liquid coolant supplying header, and an external shape of the liquid coolant distributing structural body is formed such that flow channel cross-sectional area of the liquid coolant supplying header becomes gradually smaller from an upstream end toward a downstream end.Type: ApplicationFiled: November 21, 2013Publication date: June 12, 2014Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Shigenobu TOCHIYAMA, Seiji HAGA, Masayoshi TAMURA, Satoshi ISHIBASHI, Shinsuke IDENOUE
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Patent number: 8693193Abstract: In a power converter in which semiconductor modules are arranged on both surfaces of a cooler for downsizing, an excellent connection between control boards and a low inductance connection between smoothing capacitors and the semiconductor modules are performed at the same time. The semiconductor modules are disposed on both surfaces of the cooler, and control boards that control the semiconductor modules are arranged opposite to the respective semiconductor modules. The semiconductor modules and the cooler are held between the control boards. A current detector or a terminal block is disposed at a position perpendicular to a surface on which the cooler and the semiconductor modules contact each other, opposite to the cooler. The respective control boards disposed on both surfaces of the cooler are electrically connected by using wirings provided in the current detector or the terminal block.Type: GrantFiled: July 29, 2011Date of Patent: April 8, 2014Assignee: Mitsubishi Electric CorporationInventors: Satoshi Ishibashi, Toshio Watanabe, Shinsuke Idenoue
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Publication number: 20130002227Abstract: A power converter has one set of two semiconductor switches performing switching actions, each of which is formed of an FET and a free wheel diode connected in anti-parallel to the FET, and a smoothing capacitor, and convers power by complementary switching actions of the FETs in the semiconductor switches. The power converter is provided with a current sensor that detects a direction of a current flowing through the semiconductor switches and a gate generation portion that skips ON signals of PWM gate signals of the semiconductor switches when the direction of the current flowing through the semiconductor switches is negative.Type: ApplicationFiled: February 3, 2012Publication date: January 3, 2013Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Matahiko IKEDA, Masaru KOBAYASHI, Naoki MORITAKE, Takao MITSUI, Hirotoshi MAEKAWA, Satoshi ISHIBASHI, Shinsuke IDENOUE
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Publication number: 20120188712Abstract: In a power converter in which semiconductor modules are arranged on both surfaces of a cooler for downsizing, an excellent connection between control boards and a low inductance connection between smoothing capacitors and the semiconductor modules are performed at the same time. The semiconductor modules are disposed on both surfaces of the cooler, and control boards that control the semiconductor modules are arranged opposite to the respective semiconductor modules. The semiconductor modules and the cooler are held between the control boards. A current detector or a terminal block is disposed at a position perpendicular to a surface on which the cooler and the semiconductor modules contact each other, opposite to the cooler. The respective control boards disposed on both surfaces of the cooler are electrically connected by using wirings provided in the current detector or the terminal block.Type: ApplicationFiled: July 29, 2011Publication date: July 26, 2012Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Satoshi ISHIBASHI, Toshio Watanabe, Shinsuke Idenoue
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Patent number: 7948277Abstract: A drive circuit wherein any abnormality of a semiconductor element is prevented from being erroneously sensed in a case where a gate “ON” command has entered in a state in which a gate voltage of the semiconductor element has not lowered fully. A detection process for a controlled variable of the semiconductor element is permitted only within a period which corresponds to a controlled variable of the semiconductor element at the time when an “ON” signal has been inputted to a control circuit, and a detected controlled variable which is detected within the period and a comparison controlled variable which is set in correspondence with the controlled variable are compared so as to output an abnormality signal, whereby the semiconductor element is turn-off at a speed lower than in normal turn-off.Type: GrantFiled: April 4, 2007Date of Patent: May 24, 2011Assignee: Mitsubishi Electric CorporationInventors: Hiroshi Nakatake, Satoshi Ishibashi, Shinsuke Idenoue, Takeshi Oi, Shinichi Kinouchi, Takeshi Horiguchi
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Publication number: 20100231269Abstract: A drive circuit wherein any abnormality of a semiconductor element is prevented from being erroneously sensed in a case where a gate “ON” command has entered in a state in which a gate voltage of the semiconductor element has not lowered fully. A detection process for a controlled variable of the semiconductor element is permitted only within a period which corresponds to a controlled variable of the semiconductor element at the time when an “ON” signal has been inputted to a control circuit, and a detected controlled variable which is detected within the period and a comparison controlled variable which is set in correspondence with the controlled variable are compared so as to output an abnormality signal, whereby the semiconductor element is turn-off at a speed lower than in normal turn-off.Type: ApplicationFiled: April 4, 2007Publication date: September 16, 2010Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Hiroshi Nakatake, Satoshi Ishibashi, Shinsuke Idenoue, Takeshi Oi, Shinichi Kinouchi, Takeshi Horiguchi