Patents by Inventor Fusanori Nishikimi
Fusanori Nishikimi 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: 20150022974Abstract: The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at the inner periphery of the side wall and the lower case, the metal base plate dividing the first area between the cooling jacket and the upper case into a lower side second area and an upper side third area, first and second power modules being fastened to a top surface and a capacitor module being provided in the first area, driving circuits that drive inverter circuits of the power modules respectively being provided in the second area, and a control circuit that controls the driver circuits being provided in the third area.Type: ApplicationFiled: October 2, 2014Publication date: January 22, 2015Inventors: Kinya NAKATSU, Hideyo SUZUKI, Fusanori NISHIKIMI, Takeshi MATSUO, Toshiya SATOU
-
Patent number: 8902623Abstract: In a power inverter, a coolant passage is fixed to a chassis to cool the chassis; the chassis is divided into a first region and a second region by providing the coolant passage in the chassis; a power module is provided in the first region as fixed to the coolant passage; a capacitor module is provided in the second region; and the DC terminal of the capacitor module is directly connected to the DC terminal of the power module.Type: GrantFiled: September 5, 2013Date of Patent: December 2, 2014Assignee: Hitachi, Ltd.Inventors: Fusanori Nishikimi, Kinya Nakatsu
-
Patent number: 8863869Abstract: The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at the inner periphery of the side wall and the lower case, the metal base plate dividing the first area between the cooling jacket and the upper case into a lower side second area and an upper side third area, first and second power modules being fastened to a top surface and a capacitor module being provided in the first area, driving circuits that drive inverter circuits of the power modules respectively being provided in the second area, and a control circuit that controls the driver circuits being provided in the third area.Type: GrantFiled: January 17, 2013Date of Patent: October 21, 2014Assignee: Hitachi, Ltd.Inventors: Kinya Nakatsu, Hideyo Suzuki, Fusanori Nishikimi, Takeshi Matsuo, Toshiya Satou
-
Patent number: 8699254Abstract: In a power inverter, a coolant passage is fixed to a chassis to cool the chassis; the chassis is divided into a first region and a second region by providing the coolant passage in the chassis; a power module is provided in the first region as fixed to the coolant passage; a capacitor module is provided in the second region; and the DC terminal of the capacitor module is directly connected to the DC terminal of the power module.Type: GrantFiled: August 8, 2008Date of Patent: April 15, 2014Assignee: Hitachi, Ltd.Inventors: Fusanori Nishikimi, Kinya Nakatsu
-
Publication number: 20140016387Abstract: In a power inverter, a coolant passage is fixed to a chassis to cool the chassis; the chassis is divided into a first region and a second region by providing the coolant passage in the chassis; a power module is provided in the first region as fixed to the coolant passage; a capacitor module is provided in the second region; and the DC terminal of the capacitor module is directly connected to the DC terminal of the power module.Type: ApplicationFiled: September 5, 2013Publication date: January 16, 2014Applicant: Hitachi, Ltd.Inventors: Fusanori NISHIKIMI, Kinya NAKATSU
-
Patent number: 8587977Abstract: In a power inverter, a coolant passage is fixed to a chassis to cool the chassis; the chassis is divided into a first region and a second region by providing the coolant passage in the chassis; a power module is provided in the first region as fixed to the coolant passage; a capacitor module is provided in the second region; and the DC terminal of the capacitor module is directly connected to the DC terminal of the power module.Type: GrantFiled: March 14, 2012Date of Patent: November 19, 2013Assignee: Hitachi, Ltd.Inventors: Fusanori Nishikimi, Kinya Nakatsu
-
Publication number: 20130279114Abstract: A first power semiconductor module and a second power semiconductor module are fixed in parallel to a first channel along a flow direction of a cooling refrigerant flowing through the first channel, a third power semiconductor module is fixed to a second channel such that the first power semiconductor module and the third power semiconductor module face each other via a capacitor circuit unit, and an electric circuit element electrically connected in series or in parallel with regard to the capacitor circuit unit and a DC terminal is arranged in such a position that the second power semiconductor module and the electric circuit element face each other via the capacitor circuit unit.Type: ApplicationFiled: December 7, 2011Publication date: October 24, 2013Applicant: Hitachi Automotive Systems, Ltd.Inventors: Fusanori Nishikimi, Masato Kumagai, Akira Ishii
-
Patent number: 8462531Abstract: In a power inverter, a coolant passage is fixed to a chassis to cool the chassis; the chassis is divided into a first region and a second region by providing the coolant passage in the chassis; a power module is provided in the first region as fixed to the coolant passage; a capacitor module is provided in the second region; and the DC terminal of the capacitor module is directly connected to the DC terminal of the power module.Type: GrantFiled: October 5, 2011Date of Patent: June 11, 2013Assignee: Hitachi, Ltd.Inventors: Fusanori Nishikimi, Kinya Nakatsu
-
Patent number: 8422235Abstract: The present invention provides a vehicle power module and a power converter including a power semiconductor element (328), a plurality of connecting conductors (371U, 372U, 373U) for transmitting current to the power semiconductor element (328), and a metallic base (304) upon which the power semiconductor element (328) and the plurality of connecting conductors (371U, 372U, and 373U) are mounted; and the power semiconductor element (328) and the plurality of connecting conductors (371U, 372U, and 373U) are mounted upon the metallic base (304) so as to form a looped current path. Desirably, the power semiconductor element (328) and the plurality of connecting conductors (371U, 372U, 373U) are arranged so as to form two or more looped current paths.Type: GrantFiled: July 30, 2009Date of Patent: April 16, 2013Assignee: Hitachi Automotive Systems, Ltd.Inventors: Katsunori Azuma, Mutsuhiro Mori, Kinya Nakatsu, Seiichi Hayakawa, Fusanori Nishikimi
-
Patent number: 8376069Abstract: The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at the inner periphery of the side wall and the lower case, the metal base plate dividing the first area between the cooling jacket and the upper case into a lower side second area and an upper side third area, first and second power modules being fastened to a top surface and a capacitor module being provided in the first area, driving circuits that drive inverter circuits of the power modules respectively being provided in the second area, and a control circuit that controls the driver circuits being provided in the third area.Type: GrantFiled: July 11, 2012Date of Patent: February 19, 2013Assignee: Hitachi, Ltd.Inventors: Kinya Nakatsu, Hideyo Suzuki, Fusanori Nishikimi, Takeshi Matsuo, Toshiya Satou
-
Patent number: 8373300Abstract: A power conversion apparatus capable of improving the impedance characteristics between each of two power modules and each of a plurality of capacitor cells, the power conversion apparatus including: plural capacitor cells connected in parallel between a three-layer laminated wiring board consisting of a positive polarity conductor board and a negative polarity conductor board formed widely in the direction of the parallel disposition of the power modules and laminated with an insulation sheet therebetween; a three-layer laminated conductor board consisting of a positive polarity conductor board and a negative polarity conductor board formed widely in the direction of the parallel direction of the power modules and laminated with an insulation sheet therebetween and used to connect the positive and negative polarity sides of each of the two power modules to the laminated wiring board respectively.Type: GrantFiled: April 12, 2012Date of Patent: February 12, 2013Assignee: Hitachi, Ltd.Inventors: Kinya Nakatsu, Hideyo Suzuki, Fusanori Nishikimi, Takeshi Matsuo, Atsushi Yukita
-
Publication number: 20120275205Abstract: The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at the inner periphery of the side wall and the lower case, the metal base plate dividing the first area between the cooling jacket and the upper case into a lower side second area and an upper side third area, first and second power modules being fastened to a top surface and a capacitor module being provided in the first area, driving circuits that drive inverter circuits of the power modules respectively being provided in the second area, and a control circuit that controls the driver circuits being provided in the third area.Type: ApplicationFiled: July 11, 2012Publication date: November 1, 2012Applicant: Hitachi, Ltd.Inventors: Kinya NAKATSU, Hideyo Suzuki, Fusanori Nishikimi, Takeshi Matsuo, Toshiya Satou
-
Patent number: 8240411Abstract: The metallic case of a power conversion apparatus includes a casing having a side wall, as well as an upper case and a lower case, a first area being formed between a cooling jacket provided at the inner periphery of the side wall and the lower case, the metal base plate dividing the first area between the cooling jacket and the upper case into a lower side second area and an upper side third area, first and second power modules being fastened to a top surface and a capacitor module being provided in the first area, driving circuits that drive inverter circuits of the power modules respectively being provided in the second area, and a control circuit that controls the driver circuits being provided in the third area.Type: GrantFiled: May 29, 2009Date of Patent: August 14, 2012Assignee: Hitachi, Ltd.Inventors: Kinya Nakatsu, Hideyo Suzuki, Fusanori Nishikimi, Takeshi Matsuo, Toshiya Satou
-
Publication number: 20120200164Abstract: A power conversion apparatus capable of improving the impedance characteristics between each of two power modules and each of a plurality of capacitor cells, the power conversion apparatus including: plural capacitor cells connected in parallel between a three-layer laminated wiring board consisting of a positive polarity conductor board and a negative polarity conductor board formed widely in the direction of the parallel disposition of the power modules and laminated with an insulation sheet therebetween; a three-layer laminated conductor board consisting of a positive polarity conductor board and a negative polarity conductor board formed widely in the direction of the parallel direction of the power modules and laminated with an insulation sheet therebetween and used to connect the positive and negative polarity sides of each of the two power modules to the laminated wiring board respectively.Type: ApplicationFiled: April 12, 2012Publication date: August 9, 2012Applicant: Hitachi, Ltd.Inventors: Kinya NAKATSU, Hideyo Suzuki, Fusanori Nishikimi, Takeshi Matsuo, Atsushi Yukita
-
Publication number: 20120170217Abstract: In a power inverter, a coolant passage is fixed to a chassis to cool the chassis; the chassis is divided into a first region and a second region by providing the coolant passage in the chassis; a power module is provided in the first region as fixed to the coolant passage; a capacitor module is provided in the second region; and the DC terminal of the capacitor module is directly connected to the DC terminal of the power module.Type: ApplicationFiled: March 14, 2012Publication date: July 5, 2012Applicant: Hitachi, Ltd.Inventors: Fusanori Nishikimi, Kinya Nakatsu
-
Patent number: 8212382Abstract: A power conversion apparatus capable of improving the impedance characteristics between each of two power modules and each of a plurality of capacitor cells, the power conversion apparatus including: plural capacitor cells connected in parallel between a three-layer laminated wiring board consisting of a positive polarity conductor board and a negative polarity conductor board formed widely in the direction of the parallel disposition of the power modules and laminated with an insulation sheet therebetween; a three-layer laminated conductor board consisting of a positive polarity conductor board and a negative polarity conductor board formed widely in the direction of the parallel direction of the power modules and laminated with an insulation sheet therebetween and used to connect the positive and negative polarity sides of each of the two power modules to the laminated wiring board respectively.Type: GrantFiled: May 26, 2009Date of Patent: July 3, 2012Assignee: Hitachi, Ltd.Inventors: Kinya Nakatsu, Hideyo Suzuki, Fusanori Nishikimi, Takeshi Matsuo, Atsushi Yukita
-
Publication number: 20120039039Abstract: In a power inverter, a coolant passage is fixed to a chassis to cool the chassis; the chassis is divided into a first region and a second region by providing the coolant passage in the chassis; a power module is provided in the first region as fixed to the coolant passage; a capacitor module is provided in the second region; and the DC terminal of the capacitor module is directly connected to the DC terminal of the power module.Type: ApplicationFiled: October 5, 2011Publication date: February 16, 2012Applicant: Hitachi, Ltd.Inventors: Fusanori NISHIKIMI, Kinya Nakatsu
-
Patent number: 7965510Abstract: A power conversion apparatus includes a power module, four corners of which are fastened to a cooling jacket from its front surface by a front surface side fastening apparatus that includes nuts which are screwed with bolts projecting from the rear face of the cooling jacket to fasten the power module. An AC terminal of the power module, a DC positive electrode terminal connection portion, and a DC negative electrode terminal are arranged on the top surface of the cooling jacket facing the bolts.Type: GrantFiled: May 28, 2009Date of Patent: June 21, 2011Assignee: Hitachi, Ltd.Inventors: Hideyo Suzuki, Keisuke Horiuchi, Fusanori Nishikimi, Atsushi Yukita
-
Publication number: 20110051371Abstract: The present invention provides a vehicle power module and a power converter including a power semiconductor element (328), a plurality of connecting conductors (371U, 372U, 373U) for transmitting current to the power semiconductor element (328), and a metallic base (304) upon which the power semiconductor element (328) and the plurality of connecting conductors (371U, 372U, and 373U) are mounted; and the power semiconductor element (328) and the plurality of connecting conductors (371U, 372U, and 373U) are mounted upon the metallic base (304) so as to form a looped current path. Desirably, the power semiconductor element (328) and the plurality of connecting conductors (371U, 372U, 373U) are arranged so as to form two or more looped current paths.Type: ApplicationFiled: July 30, 2009Publication date: March 3, 2011Applicant: Hitachi Automotive Systems, LtdInventors: Katsunori Azuma, Mutsuhiro Mori, Kinya Nakatsu, Seiichi Hayakawa, Fusanori Nishikimi
-
Publication number: 20100097765Abstract: Disclosed are a power conversion apparatus and a power module that can be downsized. Four corners of a power module are fastened to a cooling jacket from its front surface by a front surface side fastening apparatus. Thereafter, a top and a bottom of the housing are reversed, and nuts are screwed with bolts projecting from the rear face of the cooling jacket to fasten the power module. That is, on the top surface of the cooling jacket facing the bolts are arranged an AC terminal of the power module, a DC positive electrode terminal connection portion, and a DC negative electrode terminal. Accordingly, the power module can be downsized.Type: ApplicationFiled: May 28, 2009Publication date: April 22, 2010Applicant: Hitachi, Ltd.Inventors: Hideyo Suzuki, Keisuke Horiuchi, Fusanori Nishikimi, Atsushi Yukita