Patents by Inventor Hirokiyo Mamyoda
Hirokiyo Mamyoda 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: 11128003Abstract: According to one embodiment, in a secondary battery, a first container member has an accommodating space defined by a bottom wall and side walls, and includes a flange, defining an edge of the opening of the accommodating space, at a portion opposite to the bottom wall. The electrode group is accommodated in the accommodating space, and the second container member is arranged to face the flange. A welding part, provided on an outer side relative to the edge of the opening, hermetically welds the flange and the second container member to seal the accommodating space. A projection, provided on one of the flange and the second container member between the welding part and the edge of the opening, projects toward another of the flange and the second container member.Type: GrantFiled: February 25, 2020Date of Patent: September 21, 2021Assignee: KABUSHIKI KAISHA TOSHIBAInventors: Hirokiyo Mamyoda, Tatsuya Hashimoto
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Publication number: 20200274114Abstract: A battery includes a casing, a terminal, an electrode assembly, a collector, and a joint. The terminal is supported by the casing. The electrode assembly is housed in the casing and includes an electrode pair of a sheet form having different polarities from each other and a separator located between the electrode pair, the electrode pair and the separator laminated and wound around an axis. The collector is located at an axial end of the electrode assembly, electrically connected to the terminal, and includes a plurality of collector tabs. The collector tabs are part of one of the electrodes and laminated on each other with no other electrode and the separator placed in-between. The joint joins fringes of the laminated collector tabs.Type: ApplicationFiled: October 29, 2018Publication date: August 27, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hirokiyo MAMYODA, Masahiro MURATA, Naoki IWAMURA, Nobuyasu NEGISHI, Takashi OBARA, Tetsuo SAKAI
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Publication number: 20200251787Abstract: A battery includes a casing, a terminal, an electrode assembly, a collector, and a joint. The joint joins laminated fringes of the electrode assembly. The collector includes a cut part including the fringes. The cut part includes the joint. The electrode assembly includes a turnback pair formed by folding back the electrodes from one of an extension pair to the other. The collector includes a connection electrically connected to the terminal, including part of the extension pair, and not including at least one of the turnback pair.Type: ApplicationFiled: October 29, 2018Publication date: August 6, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Tatsuya SHINODA, Masahiro MURATA, Hirokiyo MAMYODA, Nobuyasu NEGISHI
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Publication number: 20200194740Abstract: According to one embodiment, in a secondary battery, a first container member has an accommodating space defined by a bottom wall and side walls, and includes a flange, defining an edge of the opening of the accommodating space, at a portion opposite to the bottom wall. The electrode group is accommodated in the accommodating space, and the second container member is arranged to face the flange. A welding part, provided on an outer side relative to the edge of the opening, hermetically welds the flange and the second container member to seal the accommodating space. A projection, provided on one of the flange and the second container member between the welding part and the edge of the opening, projects toward another of the flange and the second container member.Type: ApplicationFiled: February 25, 2020Publication date: June 18, 2020Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Hirokiyo MAMYODA, Tatsuya HASHIMOTO
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Patent number: 10461369Abstract: According to one embodiment, a battery includes a flat-shaped electrode group, a package member and a terminal section. The package member includes a stainless steel-made first package having a flange at an opening and a stainless steel-made second package. The electrode group is stored in a space formed by welding the flange of the first package to the second package. The terminal section includes a through-hole that is open to the first package, a ring-shaped rising portion that extends from a periphery of the through-hole toward an inside of the package member, a ring-shaped member that is arranged on an outer surface of the rising portion, an insulation gasket, and an external terminal. The external terminal is fixed to the first package by caulking.Type: GrantFiled: December 14, 2017Date of Patent: October 29, 2019Assignees: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions CorporationInventors: Nobuyasu Negishi, Tatsuya Hashimoto, Koichi Kawamura, Tatsuya Shinoda, Naoki Iwamura, Koichi Takeshita, Hirokiyo Mamyoda
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Publication number: 20180108949Abstract: According to one embodiment, a battery includes a flat-shaped electrode group, a package member and a terminal section. The package member includes a stainless steel-made first package having a flange at an opening and a stainless steel-made second package. The electrode group is stored in a space formed by welding the flange of the first package to the second package. The terminal section includes a through-hole that is open to the first package, a ring-shaped rising portion that extends from a periphery of the through-hole toward an inside of the package member, a ring-shaped member that is arranged on an outer surface of the rising portion, an insulation gasket, and an external terminal. The external terminal is fixed to the first package by caulking.Type: ApplicationFiled: December 14, 2017Publication date: April 19, 2018Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions CorporationInventors: Nobuyasu Negishi, Tatsuya Hashimoto, Koichi Kawamura, Tatsuya Shinoda, Naoki Iwamura, Koichi Takeshita, Hirokiyo Mamyoda
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Patent number: 9537184Abstract: A lithium ion secondary battery of an embodiment includes: a battery can; an electrode assembly in the battery can formed by rolling up a positive electrode, a separator and a negative electrode; an organic electrolyte solution in the battery can; a positive electrode lead in the battery can connected to the positive electrode; a negative electrode lead in the battery can connected to the negative electrode; and an overcharge preventer in the battery can; a cap body sealing the battery can; a positive electrode terminal fixed to the cap body and connected to the positive electrode lead; and a negative electrode terminal fixed to the cap body and connected to the negative electrode lead.Type: GrantFiled: February 21, 2014Date of Patent: January 3, 2017Assignee: Kabushiki Kaisha ToshibaInventors: Kenichi Takahashi, Hirokiyo Mamyoda, Kiyoshi Senoue, Tatsuya Hashimoto
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Patent number: 9437904Abstract: A lithium ion secondary battery has a battery can, an electrode assembly in the battery can formed by rolling up a positive electrode, a separator, and a negative electrode, an organic electrolyte solution in the battery can, a positive electrode lead in the battery can connected to the positive electrode, a negative electrode lead in the battery can connected to the negative electrode, an overcharge preventer, a cap body sealing the battery can, a positive electrode terminal fixed to the cap body and connected to the positive electrode lead, and a negative electrode terminal fixed to the cap body and connected to the negative electrode lead.Type: GrantFiled: February 21, 2014Date of Patent: September 6, 2016Assignee: Kabushiki Kaisha ToshibaInventors: Kenichi Takahashi, Hirokiyo Mamyoda, Tatsuya Hashimoto
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Publication number: 20140170449Abstract: A lithium ion secondary battery has a battery can, an electrode assembly in the battery can formed by rolling up a positive electrode, a separator, and a negative electrode, an organic electrolyte solution in the battery can, a positive electrode lead in the battery can connected to the positive electrode, a negative electrode lead in the battery can connected to the negative electrode, an overcharge preventer, a cap body sealing the battery can, a positive electrode terminal fixed to the cap body and connected to the positive electrode lead, and a negative electrode terminal fixed to the cap body and connected to the negative electrode lead.Type: ApplicationFiled: February 21, 2014Publication date: June 19, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Kenichi TAKAHASHI, Hirokiyo Mamyoda, Tatsuya Hashimoto
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Publication number: 20140170450Abstract: A lithium ion secondary battery of an embodiment includes: a battery can; an electrode assembly in the battery can formed by rolling up a positive electrode, a separator and a negative electrode; an organic electrolyte solution in the battery can; a positive electrode lead in the battery can connected to the positive electrode; a negative electrode lead in the battery can connected to the negative electrode; and an overcharge preventer in the battery can; a cap body sealing the battery can; a positive electrode terminal fixed to the cap body and connected to the positive electrode lead; and a negative electrode terminal fixed to the cap body and connected to the negative electrode lead.Type: ApplicationFiled: February 21, 2014Publication date: June 19, 2014Applicant: Kabushiki Kaisha ToshibaInventors: Kenichi Takahashi, Hirokiyo Mamyoda, Kiyoshi Senoue, Tatsuya Hashimoto