Patents by Inventor Hirokuni Akiyama
Hirokuni Akiyama 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: 11960578Abstract: A method is provided for determining command-to-process correspondence. The method includes identifying, by the hardware processor, initial processes resulting from executions of container immutability change events for each of multiple initially mutable containers in a cluster, based on an execution time, a process identifier and a process group identifier for each of the container immutability change events. The method also includes designating, by the hardware processor, a particular external command, from among external container commands stored in a database, as having a correspondence to an initial process, responsive to the initial process matching at least one respective process resulting from executing the particular external command.Type: GrantFiled: November 3, 2022Date of Patent: April 16, 2024Assignee: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Hirokuni Kitahara, Yuji Watanabe, Fumiko Akiyama
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Publication number: 20230268572Abstract: A power storage device includes power storage cells that are stacked in a stacking direction, and a temperature sensor configured to measure a temperature of at least one power storage cell to be measured among the power storage cells. Each of the power storage cells includes a positive electrode that includes a first current collector, and a positive electrode active material layer, a negative electrode that includes a second current collector, and a negative electrode active material layer, a separator that is arranged between the positive electrode and the negative electrode, and a sealing portion—that surrounds and seals the positive electrode active material layer and the negative electrode active material layer.Type: ApplicationFiled: August 30, 2021Publication date: August 24, 2023Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI,Inventors: Hirokuni AKIYAMA, Ryusuke HASE, Satoshi YAMAMOTO, Tomoyuki ITO, Yuki OKAMOTO
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Publication number: 20230170582Abstract: A power storage cell is provided with a positive electrode, a negative electrode, a separator, and a spacer. The positive electrode has: a first current collector; and a positive electrode active material layer provided on a one surface of the first current collector. The negative electrode has: a second current collector; and a negative electrode active material layer provided on a one surface of the second current collector. The separator has a base material layer, a first adhesive layer, and a second adhesive layer. The one surface of the first current collector is adhered to the first adhesive layer in an edge portion of the separator. The spacer is adhered to the second adhesive layer in the edge portion of the separator.Type: ApplicationFiled: April 23, 2021Publication date: June 1, 2023Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Hirokuni AKIYAMA, Shinji SUZUKI, Nobukiyo ITO, Yusuke YAMASHITA, Eiji MIZUTANI
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Publication number: 20230029819Abstract: A power storage device includes: a module stacked body including at least one power storage module including a plurality of stacked electrodes; and a housing constituting a first sealed space for accommodating the module stacked body, wherein the housing has a housing body including a cylindrical side wall extending along a stacking direction in the module stacked body and a plate-shaped bottom wall closing one end of the side wall and a lid being joined to the other end of the side wall and constrains the module stacked body in the stacking direction of the electrode inside the first sealed space by deforming at least a portion of the bottom wall and the lid so as to come close to each other due to an air pressure difference between the inside and outside of the first sealed space.Type: ApplicationFiled: December 7, 2020Publication date: February 2, 2023Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Hirokuni AKIYAMA
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Publication number: 20220407119Abstract: A power storage device includes a positive electrode and a negative electrode facing each other, a separator disposed between the positive electrode and the negative electrode, the separator being porous, and a sealing member made of a resin and sealing a space between the positive electrode and the negative electrode. The separator includes a material having a melting temperature higher than a melting temperature of a resin material of the sealing member. The separator has an edge portion sandwiched and held in the sealing member in a state where the edge portion is joined to a melted-then-solidified portion of the resin material of the sealing member.Type: ApplicationFiled: November 12, 2020Publication date: December 22, 2022Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Toshio OTAGIRI, Hirokuni AKIYAMA
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Publication number: 20220393265Abstract: A power storage device includes: a modular structure including at least one power storage module, the power storage module having an electrode stacked body and a sealing member, the electrode stacked body having bipolar electrodes, and the sealing member sealing a side surface of the electrode stacked body; a pair of restraint members disposed at both ends of the modular structure in the first direction to apply a restraint load to the modular structure; and a first intermediate member interposed between the restraint member and the modular structure to transmit the restraint load from the restraint member to the modular structure, wherein the first intermediate member includes a first package that is deformable according to the restraint load and a fluid that is enclosed in the first package.Type: ApplicationFiled: October 29, 2020Publication date: December 8, 2022Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventor: Hirokuni AKIYAMA
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Patent number: 10943745Abstract: The electric storage device includes an electrode assembly having a positive electrode and a negative electrode, a case for housing the electrode assembly, a pressure relief valve, and positive and negative electrode conductive members that are electrically connected to the respective corresponding electrodes. The case has a wall in which the pressure relief valve is disposed. At least one of the positive and negative electrode conductive members includes an interposing portion located between the inner surface of the wall and an end face of the electrode assembly facing the inner surface, and a shielding portion located closer to the end face of the electrode assembly than the interposing portion. The shielding portion covers the pressure release valve from a side of the wall where the electrode assembly is located.Type: GrantFiled: March 31, 2017Date of Patent: March 9, 2021Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yusuke Yamashita, Takayuki Hirose, Shinji Suzuki, Yasuaki Takenaka, Masato Ogasawara, Atsushi Minagata, Hirokuni Akiyama, Motoaki Okuda
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Patent number: 10910644Abstract: A nickel-hydrogen battery includes a plurality of electrodes each including a current collector made of a metal, and disposed in a manner stacked in a first direction; a separator disposed between adjacent electrodes of the plurality of electrodes; a plurality of resin members disposed on peripheral portions of the plurality of electrodes to ensure a clearance between the adjacent electrodes; and a surface treatment layer covering one surface of the current collector at least in the peripheral portion of the plurality of electrode. The surface treatment layer includes a plurality of protrusions from the one surface. Widest parts of the protrusions are located above base ends thereof, and parts of the resin members are interposed between adjacent protrusions, across a range from tip ends to the base ends thereof.Type: GrantFiled: January 24, 2018Date of Patent: February 2, 2021Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tomohiro Nakamura, Takayuki Hirose, Kojiro Tamaru, Yuki Sugimoto, Hirokuni Akiyama, Motoyoshi Okumura, Takuro Kikuchi, Hidenori Takahashi, Nobuyasu Haga
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Patent number: 10862098Abstract: A power storage device includes an electrode assembly, a case, first and second electrode terminals, and a current interrupting mechanism. The current interrupting mechanism interrupts a current through an electrical current-carrying path when the internal pressure of the case reaches a preset pressure. The current interrupting mechanism includes a mechanism insulating portion, which insulates the first electrode terminal including the current interrupting mechanism from an end face of the electrode assembly, and a terminal insulating portion, which insulates the second electrode terminal from the end face of the electrode assembly. The projecting dimension from a wall portion to the mechanism insulating portion including the first electrode terminal is equal to the projecting dimension from the wall portion to the terminal insulating portion including the second electrode terminal.Type: GrantFiled: December 12, 2016Date of Patent: December 8, 2020Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tomohiro Nakamura, Takayuki Hirose, Hirokuni Akiyama
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Publication number: 20200058935Abstract: A nickel-hydrogen battery includes a plurality of electrodes each including a current collector made of a metal, and disposed in a manner stacked in a first direction; a separator disposed between adjacent electrodes of the plurality of electrodes; a plurality of resin members disposed on peripheral portions of the plurality of electrodes to ensure a clearance between the adjacent electrodes; and a surface treatment layer covering one surface of the current collector at least in the peripheral portion of the plurality of electrode. The surface treatment layer includes a plurality of protrusions from the one surface. Widest parts of the protrusions are located above base ends thereof, and a parts of the resin members are interposed between adjacent protrusions, across a range from the tip ends to the base ends thereof.Type: ApplicationFiled: January 24, 2018Publication date: February 20, 2020Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tomohiro NAKAMURA, Takayuki HIROSE, Kojiro TAMARU, Yuki SUGIMOTO, Hirokuni AKIYAMA, Motoyoshi OKUMURA, Takuro KIKUCHI, Hidenori TAKAHASHI, Nobuyasu HAGA
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Patent number: 10490790Abstract: Provided is a battery module, which includes an array for battery cells, an elastic body disposed with respect to the array, a restraining member that restrains the array via the elastic body in an arranging direction of the battery cells, a plurality of harnesses that extend in the arranging direction and have connecting terminals of tips thereof connected to electrode terminals of the predetermined battery cells, and a binding member that binds the plurality of harnesses into a harness bundle. A binding position of the harnesses which is caused by the binding member is located at a side opposite to the elastic body relative to a connecting position between the electrode terminal and the connecting terminal, and the harness that branches off from the binding member has a flexure between the binding position and the connecting position.Type: GrantFiled: November 8, 2016Date of Patent: November 26, 2019Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Masahiro Yamada, Hiromi Ueda, Hirokuni Akiyama
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Patent number: 10483517Abstract: A bus bar assembly structure includes an electrode terminal and a plate-shaped bus bar that is assembled to the electrode terminal. The bus bar has a burr along an edge of one of openings of an insertion hole. A threaded portion of a nut has a tapered portion at an edge of one of openings of the threaded portion, and a largest diameter of the tapered portion is greater than a bore diameter of the insertion hole. A flat portion of the bus bar is held between a bolt and a nut while the burr is located within a space created by the tapered portion.Type: GrantFiled: April 26, 2017Date of Patent: November 19, 2019Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Naoto Morisaku, Fumihiko Ishiguro, Hiromi Ueda, Hirokuni Akiyama, Takayuki Kato
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Publication number: 20190280278Abstract: A bus bar assembly structure includes an electrode terminal and a plate-shaped bus bar that is assembled to the electrode terminal. The bus bar has a burr along an edge of one of openings of an insertion hole. A threaded portion of a nut has a tapered portion at an edge of one of openings of the threaded portion, and a largest diameter of the tapered portion is greater than a bore diameter of the insertion hole. A flat portion of the bus bar is held between a bolt and a nut while the burr is located within a space created by the tapered portion.Type: ApplicationFiled: April 26, 2017Publication date: September 12, 2019Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Naoto MORISAKU, Fumihiko ISHIGURO, Hiromi UEDA, Hirokuni AKIYAMA, Takayuki KATO
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Publication number: 20190115163Abstract: The electric storage device includes an electrode assembly having a positive electrode and a negative electrode, a case for housing the electrode assembly, a pressure relief valve, and positive and negative electrode conductive members that are electrically connected to the respective corresponding electrodes. The case has a wall in which the pressure relief valve is disposed. At least one of the positive and negative electrode conductive members includes an interposing portion located between the inner surface of the wall and an end face of the electrode assembly facing the inner surface, and a shielding portion located closer to the end face of the electrode assembly than the interposing portion. The shielding portion covers the pressure release valve from a side of the wall where the electrode assembly is located.Type: ApplicationFiled: March 31, 2017Publication date: April 18, 2019Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Yusuke YAMASHITA, Takayuki HIROSE, Shinji SUZUKI, Yasuaki TAKENAKA, Masato OGASAWARA, Atsushi MINAGATA, Hirokuni AKIYAMA, Motoaki OKUDA
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Patent number: 10249853Abstract: An electricity storage device includes an electrode assembly and a load applying mechanism. The load applying mechanism applies, to the electrode assembly, a load in a direction in which the positive electrode and the negative electrode are stacked in the electrode assembly. The negative electrode includes a metal foil and an active material layer that covers at least part of the metal foil and contains a carbon-based material as an active material. The density of the carbon-based material in the active material layer is 1.2 g/cm3 or higher. The degree of orientation that is defined as a ratio (I(100)/I(002)) of an X-ray diffraction intensity I(100) of a (100) plane to a diffraction intensity I(002) of a (002) plane in the active material layer is lower than or equal to 0.3. The load applied by the load applying mechanism is greater than or equal to 0.22 MPa.Type: GrantFiled: November 13, 2015Date of Patent: April 2, 2019Assignee: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Satoshi Kono, Hirokuni Akiyama
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Publication number: 20190097191Abstract: Provided is a battery module, which includes an array for battery cells; an elastic body disposed with respect to the array, a restraining member that restrains the array via the elastic body in an arranging direction of the battery cells, a plurality of harnesses that extend in the arranging direction and have connecting terminals of tips thereof connected to electrode terminals of the predetermined battery cells, and a binding member that binds the plurality of harnesses into a harness bundle. A binding position of the harnesses which is caused by the binding member is located at a side opposite to the elastic body relative to a connecting position between the electrode terminal and the connecting terminal, and the harness that branches off from the binding member has a flexure between the binding position and the connecting position.Type: ApplicationFiled: November 8, 2016Publication date: March 28, 2019Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Masahiro YAMADA, Hiromi UEDA, Hirokuni AKIYAMA
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Publication number: 20180351153Abstract: A power storage device includes an electrode assembly, a case, first and second electrode terminals, and a current interrupting mechanism. The current interrupting mechanism interrupts a current through an electrical current-carrying path when the internal pressure of the case reaches a preset pressure. The current interrupting mechanism includes a mechanism insulating portion, which insulates the first electrode terminal including the current interrupting mechanism from an end face of the electrode assembly, and a terminal insulating portion, which insulates the second electrode terminal from the end face of the electrode assembly. The projecting dimension from a wall portion to the mechanism insulating portion including the first electrode terminal is equal to the projecting dimension from the wall portion to the terminal insulating portion including the second electrode terminal.Type: ApplicationFiled: December 12, 2016Publication date: December 6, 2018Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tomohiro NAKAMURA, Takayuki HIROSE, Hirokuni AKIYAMA
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Patent number: 10020146Abstract: A current interruption device includes: a deforming plate configured to deform when the internal pressure of the casing rises above the predetermined level; a conducting plate which configures the current path; and a contact plate. The conducting plate includes a first contact portion configured to contact the contact plate. The contact plate includes a second contact portion configured to contact the first contact portion. The deforming plate includes a pressure receiving portion configured to receive the internal pressure of the casing and a contacting portion configured to contact the first contact portion. The second contact portion is configured to be separated from the conducting plate by deformation causing the contacting portion to move toward the contact plate. The deforming plate is insulated from the conducting plate and the contact plate. The conducting plate is disposed to be interleaved between the deforming plate and the contact plate.Type: GrantFiled: April 11, 2013Date of Patent: July 10, 2018Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Eagle Industry Co., Ltd.Inventors: Motoaki Okuda, Satoshi Umemura, Takayuki Kato, Hiroyasu Nishihara, Atsushi Minagata, Hirokuni Akiyama, Toshio Odagiri, Takayuki Hirose, Yoshihiro Ogawa, Toshiaki Iwa
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Patent number: 9876259Abstract: A current interruption device includes a deforming plate, a contact plate and a conducting plate which configure a current path. The deforming plate includes one surface on an opposite side from the contact plate facing a first space, a pressure of which is retained to a same pressure as the internal pressure of the casing and the other surface opposed to the contact plate facing a second space, a pressure of which is retained to a same pressure as an external pressure of the casing. When the internal pressure rises above the predetermined level, the second contact portion is separated from the conducting plate by deformation of the deforming plate toward the contacting plate.Type: GrantFiled: April 3, 2014Date of Patent: January 23, 2018Assignees: KABUSHIKI KAISHA TOYOTA JIDOSHOKKI, Eagle Industry Co., Ltd.Inventors: Takayuki Hirose, Hirokuni Akiyama, Motoaki Okuda, Atsushi Minagata, Hiroyasu Nishihara, Shimpei Mune, Toshiaki Iwa, Yoshihiro Ogawa, Makoto Mitsuyasu, Norimitsu Akiyoshi
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Publication number: 20170309873Abstract: An electricity storage device includes an electrode assembly and a load applying mechanism. The load applying mechanism applies, to the electrode assembly, a load in a direction in which the positive electrode and the negative electrode are stacked in the electrode assembly. The negative electrode includes a metal foil and an active material layer that covers at least part of the metal foil and contains a carbon-based material as an active material. The density of the carbon-based material in the active material layer is 1.2 g/cm3 or higher. The degree of orientation that is defined as a ratio (I(100)/I(002)) of an X-ray diffraction intensity I(100) of a (100) plane to a diffraction intensity I(002) of a (002) plane in the active material layer is lower than or equal to 0.3. The load applied by the load applying mechanism is greater than or equal to 0.22 MPa.Type: ApplicationFiled: November 13, 2015Publication date: October 26, 2017Applicant: KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Satoshi KONO, Hirokuni AKIYAMA