Patents by Inventor YOSHIHIRO SHIOTSU
YOSHIHIRO SHIOTSU 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: 10879572Abstract: In order to provide a power supply device having a high rigidity and a light weight, power supply device includes: one or more cell stacked bodies each formed by stacking secondary battery cells; a circuit board including a control circuit electrically connected to the cell stacked bodies; resin-made battery case for storing the cell stacked bodies and circuit board; metal-made lower frame for covering the bottom surface of battery case; and metal-made upper frame for covering the upper surface of battery case. Battery case has a waterproof structure. Battery case is grasped by connecting upper frame to lower frame.Type: GrantFiled: November 6, 2015Date of Patent: December 29, 2020Assignee: SANYO ELECTRIC CO., LTD.Inventors: Wataru Okada, Yoshiaki Ueta, Shuichi Sugawara, Yoshihiro Shiotsu
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Patent number: 10644287Abstract: A battery module includes: a plurality of battery cells and a case for housing the plurality of battery cells. The case has a plurality of through-holes which are provided to a wall part forming an outer face of the battery module and via which gas ejected from at least one of the plurality of battery cells is discharged in a dispersed manner.Type: GrantFiled: May 18, 2018Date of Patent: May 5, 2020Assignee: Panasonic Intellectual Property Management Co., Ltd.Inventors: Keisuke Shimizu, Yoshihiro Shiotsu, Hiroshi Takasaki
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Patent number: 10601014Abstract: A plurality of battery cells are connected by a busbar. Electrode terminals of the battery cells each include a protruding portion and a welding surface around the protruding portion. The busbar includes a welding plate portion being in surface-contact with the welding surface and having a cut-away portion for guiding the protruding portion, and an exposure gap that exposes the welding surface between the inner side of the cut-away portion and the protruding portion. The busbar is welded to the welding surface in a predetermined welding width (H) by both of a fillet weld part and a penetration welding portion such that the inner edge of the cut-away portion as the fillet weld part is welded to the welding surface, and the boundary between the busbar and the welding surface is welded by the penetration welding portion.Type: GrantFiled: November 6, 2015Date of Patent: March 24, 2020Assignee: SANYO ELECTRIC CO., LTD.Inventors: Wataru Okada, Yoshihiro Shiotsu, Tomomi Tanaka, Seiji Kumazawa
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Publication number: 20180269448Abstract: A battery module includes: a plurality of battery cells and a case for housing the plurality of battery cells. The case has a plurality of through-holes which are provided to a wall part forming an outer face of the battery module and via which gas ejected from at least one of the plurality of battery cells is discharged in a dispersed manner.Type: ApplicationFiled: May 18, 2018Publication date: September 20, 2018Inventors: Keisuke SHIMIZU, Yoshihiro SHIOTSU, Hiroshi TAKASAKI
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Patent number: 10003055Abstract: A battery module includes: a plurality of battery cells and a case for housing the plurality of battery cells. The case has a plurality of through-holes which are provided to a wall part forming an outer face of the battery module and via which gas ejected from at least one of the plurality of battery cells is discharged in a dispersed manner.Type: GrantFiled: October 29, 2014Date of Patent: June 19, 2018Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Keisuke Shimizu, Yoshihiro Shiotsu, Hiroshi Takasaki
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Publication number: 20180019454Abstract: The power supply device includes a plurality of battery cells each having a rectangular outer shape; separators each interposed between the battery cells and insulating mutually adjacent battery cells; and fastening members for fastening a battery cell stack including the alternately stacked battery cells and the separators. The separator includes a sandwiching plate portion disposed between the facing principal surfaces of the mutually adjacent battery cells, and a plate-like bottom-surface cover portion provided to both surfaces of the sandwiching plate portion, at a lower end of the sandwiching plate portion, and protruding in a stacked direction of the battery cells to cover bottom surfaces of the battery cells. The bottom-surface cover portions of the separators stacked on both surfaces of the battery cells are stacked on each other at the bottom surfaces of the battery cells.Type: ApplicationFiled: December 9, 2015Publication date: January 18, 2018Inventors: WATARU OKADA, YOSHIAKI UETA, SHUICHI SUGAWARA, YOSHIHIRO SHIOTSU
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Publication number: 20170365897Abstract: In order to provide a power supply device having a high rigidity and a light weight, power supply device includes: one or more cell stacked bodies each formed by stacking secondary battery cells; a circuit board including a control circuit electrically connected to the cell stacked bodies; resin-made battery case for storing the cell stacked bodies and circuit board; metal-made lower frame for covering the bottom surface of battery case; and metal-made upper frame for covering the upper surface of battery case. Battery case has a waterproof structure. Battery case is grasped by connecting upper frame to lower frame.Type: ApplicationFiled: November 6, 2015Publication date: December 21, 2017Inventors: WATARU OKADA, YOSHIAKI UETA, SHUICHI SUGAWARA, YOSHIHIRO SHIOTSU
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Publication number: 20170365838Abstract: A plurality of battery cells are connected by a busbar. Electrode terminals of the battery cells each include a protruding portion and a welding surface around the protruding portion. The busbar includes a welding plate portion being in surface-contact with the welding surface and having a cut-away portion for guiding the protruding portion, and an exposure gap that exposes the welding surface between the inner side of the cut-away portion and the protruding portion. The busbar is welded to the welding surface in a predetermined welding width (H) by both of a fillet weld part and a penetration welding portion such that the inner edge of the cut-away portion as the fillet weld part is welded to the welding surface, and the boundary between the busbar and the welding surface is welded by the penetration welding portion.Type: ApplicationFiled: November 6, 2015Publication date: December 21, 2017Inventors: WATARU OKADA, YOSHIHIRO SHIOTSU, TOMOMI TANAKA, SEIJI KUMAZAWA
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Publication number: 20170365827Abstract: A battery system includes a plurality of battery cells; a busbar that is laser-welded to electrode terminals of the adjacent battery cells and electrically connects the battery cells; and a plastic insulating wall disposed between the adjacent electrode terminals. The surface color of the insulating wall is a heat-ray reflecting color having far-infrared reflectance of 50% or more.Type: ApplicationFiled: December 9, 2015Publication date: December 21, 2017Inventors: WATARU OKADA, YOSHIHIRO SHIOTSU, TOMOMI TANAKA, SEIJI KUMAZAWA
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Patent number: 9761917Abstract: A battery unit includes the following elements: a battery module that includes a plurality of battery cells and a gas discharge opening for discharging gas jetted from each of the battery cells; and a gas discharge duct in communication with the gas discharge opening and discharging the gas to the outside of the battery module. The gas discharge duct includes at least one duct outlet of which cross-sectional area of the channel in the duct outlet or the sum of cross-sectional areas of the channel in the respective duct outlets is larger than a cross-sectional area of the channel on the upstream side in the flow direction of the gas. The gas discharge duct also includes a temperature reducing member that is fixed to the periphery of the duct outlet so as to block part of the channel and reduces the temperature of the gas going through gaps.Type: GrantFiled: September 26, 2014Date of Patent: September 12, 2017Assignee: PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD.Inventors: Yoshihiro Shiotsu, Hiroshi Takasaki, Keisuke Shimizu
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Publication number: 20160204404Abstract: A battery module includes: a plurality of battery cells and a case for housing the plurality of battery cells. The case has a plurality of through-holes which are provided to a wall part forming an outer face of the battery module and via which gas ejected from at least one of the plurality of battery cells is discharged in a dispersed manner.Type: ApplicationFiled: October 29, 2014Publication date: July 14, 2016Inventors: KEISUKE SHIMIZU, YOSHIHIRO SHIOTSU, HIROSHI TAKASAKI
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Publication number: 20160104923Abstract: A battery unit includes the following elements: a battery module that includes a plurality of battery cells and a gas discharge opening for discharging gas jetted from each of the battery cells; and a gas discharge duct in communication with the gas discharge opening and discharging the gas to the outside of the battery module. The gas discharge duct includes at least one duct outlet of which cross-sectional area of the channel in the duct outlet or the sum of cross-sectional areas of the channel in the respective duct outlets is larger than a cross-sectional area of the channel on the upstream side in the flow direction of the gas. The gas discharge duct also includes a temperature reducing member that is fixed to the periphery of the duct outlet so as to block part of the channel and reduces the temperature of the gas going through gaps.Type: ApplicationFiled: September 26, 2014Publication date: April 14, 2016Inventors: YOSHIHIRO SHIOTSU, HIROSHI TAKASAKI, KEISUKE SHIMIZU