Patents by Inventor Tunemi Aiba
Tunemi Aiba 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: 8207704Abstract: A cell controller having excellent productivity is provided. A cell-con 80 has 12 ICs IC-1 to IC-12 mounted on a substrate, and these ICs detect voltages of respective cells constituting a cell pack, perform capacity adjustment on the respective cells, and are mounted two by two on rectangular longer sides of a rectangular continuous straight line L-L? defined on a substrate from the IC-1 on a highest potential side to the IC-12 on a lowest potential side continuously in order of potential differences of the corresponding cell packs. Distances between the rectangular shorter sides of the rectangular continuous straight line L-L? are the same. On the cell-con 80, between the IC-1 to IC-12 having different ground voltages, each of the ICs has signal output terminals connected to signal input terminals of a lower order IC respectively in an electrically non-insulated state.Type: GrantFiled: October 6, 2011Date of Patent: June 26, 2012Assignee: Hitachi Vehicle Energy, LtdInventors: Tsuyoshi Kai, Tunemi Aiba, Akihiko Kudo, Yoshinori Aoshima, Akihiko Emori
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Publication number: 20120052345Abstract: A cell controller having excellent productivity is provided. A cell-con 80 has 12 ICs IC-1 to IC-2 mounted on a substrate, and these ICs detect voltages of respective cells constituting a cell pack, perform capacity adjustment on the respective cells, and are mounted two by two on rectangular longer sides of a rectangular continuous straight line L-L? defined on a substrate from the IC-1 on a highest potential side to the IC-12 on a lowest potential side continuously in order of potential differences of the corresponding cell packs. Distances between the rectangular shorter sides of the rectangular continuous straight line L-L? are the same. On the cell-con 80, between the IC-1 to IC-12 having different ground voltages, each of the ICs has signal output terminals connected to signal input terminals of a lower order IC respectively in an electrically non-insulated state.Type: ApplicationFiled: October 6, 2011Publication date: March 1, 2012Applicant: HITACHI VEHICLE ENERGY, LTD.Inventors: Tsuyoshi KAI, Tunemi AIBA, Akihiko KUDO, Yoshinori AOSHIMA, Akihiko EMORI
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Patent number: 8076020Abstract: The present invention provides to a battery module which is excellent in cooling performance of a battery and is improved in assembling easiness at low cast. A battery module 3 accommodates assembled battery blocks 20 arranged in series in an exterior case formed in an approximately hexahedral shape in parallel, each assembled battery block 20 including six assembled battery units electrically connected in series and each assembled battery unit including four cylindrical unit cells arrange such that their polarities are alternating. An exterior case is formed by connecting a lower lid 22 having a front face, a bottom face, and a back face and an upper lid 41 having a left side face, an upper face, and a right side face. End portions of the left side face, the upper face, and the right side face of the upper lid are drawn at the sides of the front face and the back face of the lower lid.Type: GrantFiled: December 13, 2006Date of Patent: December 13, 2011Assignee: Hitachi Vehicle Energy, Ltd.Inventors: Takeyuki Goto, Toshiaki Onuki, Tunemi Aiba, Koutarou Ikeda
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Patent number: 8058842Abstract: A cell controller having excellent productivity is provided. A cell-con 80 has 12 ICs IC-1 to IC-12 mounted on a substrate, and these ICs detect voltages of respective cells constituting a cell pack, perform capacity adjustment on the respective cells, and are mounted two by two on rectangular longer sides of a rectangular continuous straight line L-L? defined on a substrate from the IC-1 on a highest potential side to the IC-12 on a lowest potential side continuously in order of potential differences of the corresponding cell packs. Distances between the rectangular shorter sides of the rectangular continuous straight line L-L? are the same. On the cell-con 80, between the IC-1 to IC-12 having different ground voltages, each of the ICs has signal output terminals connected to signal input terminals of a lower order IC respectively in an electrically non-insulated state.Type: GrantFiled: July 30, 2007Date of Patent: November 15, 2011Assignee: Hitachi Vehicle Energy, LtdInventors: Tsuyoshi Kai, Tunemi Aiba, Akihiko Kudo, Yoshinori Aoshima, Akihiko Emori
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Publication number: 20110269001Abstract: The present invention provides an assembled battery with reduced weight and high reliability that can achieve improvement of assembling easiness at low cost. An assembled battery is provided with a frame holding a plurality of unit cells 14 having positive polarity at one end and negative polarity at the other end. The frame is composed of two outer frames 2 having the same shape and an inner frame 3. The unit cells 14 constituting an assembled battery 1 are disposed on both sides of the inner frame 3, and one outer frame 2 and the other outer frame 2 are disposed such that the unit cells are sandwiched between the former outer frame 2 and the inner frame 3 and between the latter outer frame 2 and the inner frame 3. The two outer frames 2 are joined to the inner frame 3 through side face coupling portions 23 and vertical coupling portions 24.Type: ApplicationFiled: May 9, 2011Publication date: November 3, 2011Applicant: HITACHI VEHICLE ENERGY, LTD.Inventors: Toshiaki Onuki, Takeyuki Goto, Koutarou Ikeda, Tunemi Aiba
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Patent number: 7955729Abstract: The present invention provides a secondary battery module which is excellent in vibration resistance. A battery module 20 has assembled battery blocks 11 each constituted by screw-fixing the assembled batteries 2 to the block bases 3, 4 supporting a lower portion thereof and the two block reinforcing plates 5 supporting an upper portion thereof, the six assembled batteries 2 are sandwiched by and fixed firmly to the block bases 3, 4 and the block reinforcing plates 5. The assembled batteries 2 do not move freely even if vibration is added to the battery module 20. Because the elastic sheet 9 is laid between the block bases 3, 4 and the assembled batteries 2, since a space derived due to variance in size accuracy of frames 12 which hold and fix the unit cells 11 and derived due to variance in size accuracy of the block bases 3, 4 can be removed, and vibration resistance can be enhanced.Type: GrantFiled: April 4, 2007Date of Patent: June 7, 2011Assignee: Hitachi Vehicle Energy, Ltd.Inventors: Toshiaki Onuki, Tunemi Aiba, Takeyuki Goto, Tatsuo Ono
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Patent number: 7951483Abstract: The present invention provides an assembled battery with reduced weight and high reliability that can achieve improvement of assembling easiness at low cost. An assembled battery is provided with a frame holding a plurality of unit cells 14 having positive polarity at one end and negative polarity at the other end. The frame is composed of two outer frames 2 having the same shape and an inner frame 3. The unit cells 14 constituting an assembled battery 1 are disposed on both sides of the inner frame 3, and one outer frame 2 and the other outer frame 2 are disposed such that the unit cells are sandwiched between the former outer frame 2 and the inner frame 3 and between the latter outer frame 2 and the inner frame 3. The two outer frames 2 are joined to the inner frame 3 through side face coupling portions 23 and vertical coupling portions 24.Type: GrantFiled: December 12, 2006Date of Patent: May 31, 2011Assignee: Hitachi Vehicle Energy, Ltd.Inventors: Toshiaki Onuki, Takeyuki Goto, Koutarou Ikeda, Tunemi Aiba
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Publication number: 20080057393Abstract: The present invention provides a secondary battery module which is excellent in vibration resistance. A battery module 20 has assembled battery blocks 11 each constituted by screw-fixing the assembled batteries 2 to the block bases 3, 4 supporting a lower portion thereof and the two block reinforcing plates 5 supporting an upper portion thereof, the six assembled batteries 2 are sandwiched by and fixed firmly to the block bases 3, 4 and the block reinforcing plates 5. The assembled batteries 2 do not move freely even if vibration is added to the battery module 20. Because the elastic sheet 9 is laid between the block bases 3, 4 and the assembled batteries 2, since a space derived due to variance in size accuracy of frames 12 which hold and fix the unit cells 11 and derived due to variance in size accuracy of the block bases 3, 4 can be removed, and vibration resistance can be enhanced.Type: ApplicationFiled: April 4, 2007Publication date: March 6, 2008Applicant: HITACHI VEHICLE ENERGY, LTD.Inventors: Toshiaki ONUKI, Tunemi AIBA, Takeyuki GOTO, Tatsuo ONO
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Publication number: 20080050645Abstract: A cell controller having excellent productivity is provided. A cell-con 80 has 12 ICs IC-1 to IC-2 mounted on a substrate, and these ICs detect voltages of respective cells constituting a cell pack, perform capacity adjustment on the respective cells, and are mounted two by two on rectangular longer sides of a rectangular continuous straight line L-L? defined on a substrate from the IC-1 on a highest potential side to the IC-12 on a lowest potential side continuously in order of potential differences of the corresponding cell packs. Distances between the rectangular shorter sides of the rectangular continuous straight line L-L? are the same. On the cell-con 80, between the IC-1 to IC-12 having different ground voltages, each of the ICs has signal output terminals connected to signal input terminals of a lower order IC respectively in an electrically non-insulated state.Type: ApplicationFiled: July 30, 2007Publication date: February 28, 2008Applicant: HITACHI VEHICLE ENERGY, LTD.Inventors: Tsuyoshi KAI, Tunemi AIBA, Akihiko KUDO, Yoshinori AOSHIMA, Akihiko EMORI
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Publication number: 20070141459Abstract: The present invention provides to a battery module which is excellent in cooling performance of a battery and is improved in assembling easiness at low cast. A battery module 3 accommodates assembled battery blocks 20 arranged in series in an exterior case formed in an approximately hexahedral shape in parallel, each assembled battery block 20 including six assembled battery units electrically connected in series and each assembled battery unit including four cylindrical unit cells arrange such that their polarities are alternating. An exterior case is formed by connecting a lower lid 22 having a front face, a bottom face, and a back face and an upper lid 41 having a left side face, an upper face, and a right side face. End portions of the left side face, the upper face, and the right side face of the upper lid are drawn at the sides of the front face and the back face of the lower lid.Type: ApplicationFiled: December 13, 2006Publication date: June 21, 2007Applicant: Hitachi Vehicle Energy, Ltd.Inventors: Takeyuki Goto, Toshiaki Onuki, Tunemi Aiba, Koutarou Ikeda
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Publication number: 20070132429Abstract: The present invention provides an assembled battery with reduced weight and high reliability that can achieve improvement of assembling easiness at low cost. An assembled battery is provided with a frame holding a plurality of unit cells 14 having positive polarity at one end and negative polarity at the other end. The frame is composed of two outer frames 2 having the same shape and an inner frame 3. The unit cells 14 constituting an assembled battery 1 are disposed on both sides of the inner frame 3, and one outer frame 2 and the other outer frame 2 are disposed such that the unit cells are sandwiched between the former outer frame 2 and the inner frame 3 and between the latter outer frame 2 and the inner frame 3. The two outer frames 2 are joined to the inner frame 3 through side face coupling portions 23 and vertical coupling portions 24.Type: ApplicationFiled: December 12, 2006Publication date: June 14, 2007Applicant: HITACHI VEHICLE ENERGY, LTD.Inventors: Toshiaki Onuki, Takeyuki Goto, Koutarou Ikeda, Tunemi Aiba