Patents by Inventor Tetsuji Omura
Tetsuji Omura 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: 10727549Abstract: In order to enable the suppression of a decrease in screw fastening force due to a difference in linear expansion, a power supply device includes: a battery stacked body (11) including a plurality of stacked secondary battery cells (1); a fixing part configured to fix the battery stacked body (11); a fastening assistance plate (50) having the same linear expansion coefficient as the fixing part; a fixing plate (30) disposed between the fixing part and the fastening assistance plate (50), and having one surface on which the battery stack body (11) is disposed; and a plurality of screw connected members (40) passing through the fixing part, the fixing plate (30), and the fastening assistance plate (50). Each of the plurality of screw connected members (40) has a seating surface on which a frictional force operates, caused by an axial force, and the seating surface of each of the plurality of screw connected members (40) is in contact with the fixing plate (30) or the fastening assistance plate (50).Type: GrantFiled: April 21, 2016Date of Patent: July 28, 2020Assignee: SANYO ELECTRIC CO., LTD.Inventor: Tetsuji Omura
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Publication number: 20200212404Abstract: A battery module includes: a plurality of batteries stacked together; and a busbar that electrically connects the plurality of batteries with each other. The busbar has: a main body that extends along axis X along which the batteries are stacked together; and a plurality of connectors that protrude from the main body along an axis that intersects with the axis along which the batteries are stacked together, and are electrically connected with terminals of the batteries, respectively. The plurality of batteries are divided into a plurality of battery units. Each of the plurality of battery units includes at least two of the plurality of batteries. The busbar connects the at least two of the plurality of batteries of each of the battery units with each other in parallel. The busbar connects the battery units with each other in series.Type: ApplicationFiled: December 7, 2018Publication date: July 2, 2020Inventors: TETSUJI OMURA, MASAYA UGAJI
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Publication number: 20200168883Abstract: A battery module includes a plurality of batteries stacked together, and a busbar. Each of the plurality of batteries includes a battery-side first structure and a battery-side second structure that regulate the connection of the battery and the busbar. The busbar has a busbar-side first structure and a busbar-side second structure that regulate the connection of the busbar and each of the batteries. If the battery-side first structures of the plurality of batteries are combined with the busbar-side first structure, and the battery-side second structures of the plurality of batteries are combined with the busbar-side second structure, each of the batteries is connected with the busbar. Alternatively, if the battery-side first structure of any one of the batteries is combined with the busbar-side second structure, the one of the batteries or another one of the batteries is not connected with the busbar.Type: ApplicationFiled: December 7, 2018Publication date: May 28, 2020Inventors: TETSUJI OMURA, MASAYA UGAJI
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Publication number: 20200075988Abstract: A separator includes an intervening portion that is disposed between two adjacent batteries and insulates the two batteries, an input part that receives external force input during assembly of a battery module and is deformable by the external force, and a battery pressing part that is in contact with a first surface of one of batteries, the first surface extending in a stack direction X of the batteries, and use the external force input into the input part to press the first surface.Type: ApplicationFiled: February 21, 2018Publication date: March 5, 2020Inventors: TETSUJI OMURA, MOMOKO HIRANUMA
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Publication number: 20200058912Abstract: The battery module includes a plurality of batteries that are stacked and a heat transfer suppression member disposed between adjacent two batteries.Type: ApplicationFiled: September 20, 2017Publication date: February 20, 2020Inventors: KAZUKI KURAMITSU, KAZUNARI HIRAIDE, TETSUJI OMURA, AKIRA TAKANO, SHIGEAKI SAKATANI
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Publication number: 20200044297Abstract: A battery module includes a battery stack having a plurality of stacked batteries, a first heat radiator facing first surface of battery stack, a first heat transfer component that is in contact with the first heat radiator and first surface to transfer heat from the battery stack to the first heat radiator, and a second heat radiator facing a second surface of the battery stack. The second surface extends in a direction intersecting with the first surface. The second heat radiator is thermally connected to the second surface directly or through the second heat transfer component. A positional relationship between the first heat transfer component and the battery stack is formed such that the center of the first heat transfer component (84) is more away from the second heat radiator than the center of the battery stack is in a direction along the first surface.Type: ApplicationFiled: September 12, 2017Publication date: February 6, 2020Inventors: TETSUJI OMURA, KAZUNARI HIRAIDE
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Publication number: 20190334145Abstract: A battery module includes a battery and a covering put over a surface of the battery. The surface of the battery is provided with a valve to release gas produced inside the battery. The covering includes a thin-walled part and a thick-walled part disposed in a region contiguous to the thin-walled part. The thin-walled part is formed thinner in thickness than the thick-walled part.Type: ApplicationFiled: June 21, 2017Publication date: October 31, 2019Inventors: TETSUJI OMURA, AKIRA TAKANO
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Patent number: 10333132Abstract: Power source device includes a battery block, a plate, terminal fixing part, and buffer portion. The battery block includes a battery cell having electrode terminals. The battery block has a terminal surface on which electrode terminals are positioned. The plate is disposed on the terminal surface. The plate includes output terminal portion provided with general terminal bus-bar connected to one of electrode terminals. Output terminal portion has wall portion standing along general terminal bus-bar. Terminal fixing part connects the output line (OL) having a connection terminal (CT) at a tip thereof to general terminal bus-bar. Terminal fixing part fixes the connection terminal (CT) and the general terminal bus-bar to each other by a screwing structure. Buffer portion is formed so as to be deformable between the connection terminal (CT) and wall portion.Type: GrantFiled: October 2, 2015Date of Patent: June 25, 2019Assignee: SANYO ELECTRIC CO., LTD.Inventors: Tetsuji Omura, Shinichi Mitsubori
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Patent number: 10186738Abstract: A cell module comprises: a cell stack comprising multiple cells which are electrically connected to each other; a plate-shaped heat dissipating member arranged such that it extends along a direction in which the multiple cells are arranged, and such that it is thermally connected to the multiple cells; and an intervening layer arranged between the cell stack and the heat dissipating member, and configured to allow heat to propagate from the cell stack to the heat dissipating member, and to suppress a relative displacement between the cell stack and the heat dissipating member.Type: GrantFiled: July 21, 2016Date of Patent: January 22, 2019Assignee: Sanyo Electric Co., Ltd.Inventors: Tetsuji Omura, Mayumi Nakasato, Fusanori Watanabe
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Publication number: 20180145305Abstract: Power source device includes a battery block, a plate, terminal fixing part, and buffer portion. The battery block includes a battery cell having electrode terminals. The battery block has a terminal surface on which electrode terminals are positioned. The plate is disposed on the terminal surface. The plate includes output terminal portion provided with general terminal bus-bar connected to one of electrode terminals. Output terminal portion has wall portion standing along general terminal bus-bar. Terminal fixing part connects the output line (OL) having a connection terminal (CT) at a tip thereof to general terminal bus-bar. Terminal fixing part fixes the connection terminal (CT) and the general terminal bus-bar to each other by a screwing structure. Buffer portion is formed so as to be deformable between the connection terminal (CT) and wall portion.Type: ApplicationFiled: October 2, 2015Publication date: May 24, 2018Inventors: TETSUJI OMURA, SHINICHI MITSUBORI
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Publication number: 20180138559Abstract: In order to enable the suppression of a decrease in screw fastening force due to a difference in linear expansion, a power supply device includes: a battery stacked body (11) including a plurality of stacked secondary battery cells (1); a fixing part configured to fix the battery stacked body (11); a fastening assistance plate (50) having the same linear expansion coefficient as the fixing part; a fixing plate (30) disposed between the fixing part and the fastening assistance plate (50), and having one surface on which the battery stack body (11) is disposed; and a plurality of screw connected members (40) passing through the fixing part, the fixing plate (30), and the fastening assistance plate (50). Each of the plurality of screw connected members (40) has a seating surface on which a frictional force operates, caused by an axial force, and the seating surface of each of the plurality of screw connected members (40) is in contact with the fixing plate (30) or the fastening assistance plate (50).Type: ApplicationFiled: April 21, 2016Publication date: May 17, 2018Inventor: Tetsuji OMURA
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Patent number: 9786965Abstract: A power source device comprises: a battery module having a rectangular parallelepiped shape including a battery stacked body having a plurality of battery cells stacked in one direction, a pair of end plates respectively disposed on a first end surface and a second end surface located at two ends of the battery stacked body, and a constraining member coupled to the pair of the end plates. Further, the power source device comprises: a frame having a fastening surface; fastening members for fastening the battery module in such a state that one surface of the battery module adjacent to the first end face and the second end face faces the fastening surface. The constraining member is formed such that a hardness of the constraining member becomes stronger against an external force applied to a stacked direction of the plurality of battery cells as the constraining member goes away from the fastening surface.Type: GrantFiled: June 26, 2015Date of Patent: October 10, 2017Assignee: SANYO ELECTRIC CO., LTD.Inventor: Tetsuji Omura
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Publication number: 20170194676Abstract: A power source device comprises: a battery module having a rectangular parallelepiped shape including a battery stacked body having a plurality of battery cells stacked in one direction, a pair of end plates respectively disposed on a first end surface and a second end surface located at two ends of the battery stacked body, and a constraining member coupled to the pair of the end plates. Further, the power source device comprises: a frame having a fastening surface; fastening members for fastening the battery module in such a state that one surface of the battery module adjacent to the first end face and the second end face faces the fastening surface. The constraining member is formed such that a hardness of the constraining member becomes stronger against an external force applied to a stacked direction of the plurality of battery cells as the constraining member goes away from the fastening surface.Type: ApplicationFiled: June 26, 2015Publication date: July 6, 2017Inventor: Tetsuji OMURA
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Publication number: 20160329617Abstract: A cell module comprises: a cell stack comprising multiple cells which are electrically connected to each other; a plate-shaped heat dissipating member arranged such that it extends along a direction in which the multiple cells are arranged, and such that it is thermally connected to the multiple cells; and an intervening layer arranged between the cell stack and the heat dissipating member, and configured to allow heat to propagate from the cell stack to the heat dissipating member, and to suppress a relative displacement between the cell stack and the heat dissipating member.Type: ApplicationFiled: July 21, 2016Publication date: November 10, 2016Inventors: Tetsuji OMURA, Mayumi NAKASATO, Fusanori WATANABE
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Patent number: 9431686Abstract: A cell module comprises: a cell stack comprising multiple cells which are electrically connected to each other; a plate-shaped heat dissipating member arranged such that it extends along a direction in which the multiple cells are arranged, and such that it is thermally connected to the multiple cells ; and an intervening layer arranged between the cell stack and the heat dissipating member, and configured to allow heat to propagate from the cell stack to the heat dissipating member, and to suppress a relative displacement between the cell stack and the heat dissipating member.Type: GrantFiled: February 16, 2012Date of Patent: August 30, 2016Assignee: SANYO ELECTRIC CO., LTD.Inventors: Tetsuji Omura, Mayumi Nakasato, Fusanori Watanabe
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Publication number: 20150125720Abstract: In a power supply device, the gas exhaust valve is integrally coupled to the outer can at the time of opening the gas exhaust valve, and the connecting portion between the outer can and the gas exhaust valve is partially broken at the time of opening the gas exhaust valve by an internal pressure of the outer can, and the gas duct further comprises a joining aperture being connected airtight to the gas exhaust valve, and a duct exhaust portion being connected to the external gas exhaust duct, and the inner diameter d inside the gas duct is at least partially smaller than the outer diameter a of the gas exhaust valve between the joining aperture and the duct exhaust portion.Type: ApplicationFiled: August 1, 2013Publication date: May 7, 2015Inventors: Kazuhiro Fujii, Tetsuji Omura
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Publication number: 20130337310Abstract: A cell module 10 comprises: a cell stack 20 comprising multiple cells 30 which are electrically connected to each other; a plate-shaped heat dissipating member 70 arranged such that it extends along a direction in which the multiple cells 30 are arranged, and such that it is thermally connected to the multiple cells 30; and an intervening layer 80 arranged between the cell stack 20 and the heat dissipating member 70, and configured to allow heat to propagate from the cell stack 20 to the heat dissipating member 70, and to suppress a relative displacement between the cell stack 20 and the heat dissipating member 70.Type: ApplicationFiled: February 16, 2012Publication date: December 19, 2013Applicant: SANYO ELECTRIC CO., LTD.Inventors: Tetsuji Omura, Mayumi Nakasato, Fusanori Watanabe
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Publication number: 20120112234Abstract: Each pixel includes a region where a lower reflection film is not present. In each pixel, there is a region where a microcavity structure is formed between a counter electrode and a lower reflection film and another region where the microcavity structure is not formed. The regions differentiated in cavity length can differently enhance the peak wavelength so as to improve the viewing angle dependence. Furthermore, in each of R, G, and B light emitting pixels, the area ratio of a region where the microcavity structure is present and another region where the microcavity structure is not present can be adjusted so as to eliminate the differences caused by the microcavity structure.Type: ApplicationFiled: January 20, 2012Publication date: May 10, 2012Applicant: SANYO ELECTRIC CO., LTD.Inventors: Ryuji NISHIKAWA, Tetsuji OMURA, Masaya NAKAI
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Patent number: 8129712Abstract: Each pixel includes a region where a lower reflection film is not present. In each pixel, there is a region where a microcavity structure is formed between a counter electrode and a lower reflection film and another region where the microcavity structure is not formed. The regions differentiated in cavity length can differently enhance the peak wavelength so as to improve the viewing angle dependence. Furthermore, in each of R, G, and B light emitting pixels, the area ratio of a region where the microcavity structure is present and another region where the microcavity structure is not present can be adjusted so as to eliminate the differences caused by the microcavity structure.Type: GrantFiled: February 27, 2006Date of Patent: March 6, 2012Assignee: Sanyo Electric Co., Ltd.Inventors: Ryuji Nishikawa, Tetsuji Omura, Masaya Nakai
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Patent number: 7903055Abstract: Disclosed is a light-emitting display having a plurality of pixels wherein each pixel comprises a light-emitting device (100) having a light-emitting element layer which is formed between a first electrode and a second electrode and contains at least a light-emitting layer. An insulating layer (30) is formed between the light-emitting device (100) and a surface of a first or second substrate on the viewing side of the display, and the insulating layer (30) is provided with recesses and projections in at least one or more pixel regions, thereby forming an optical path length adjusting portion (32). By forming such an optical path length adjusting portion (32) in a pixel region, there is an increase in the interference conditions for the light emitted from the light-emitting device (100) to the outside, thereby averaging the interference.Type: GrantFiled: April 27, 2005Date of Patent: March 8, 2011Assignee: Sanyo Electric Co., Ltd.Inventors: Ryuji Nishikawa, Tetsuji Omura