Patents by Inventor Tomotaka Hagino
Tomotaka Hagino 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: 11552373Abstract: A welding step involves solid-state welding together an external terminal and a seat portion of an internal terminal by causing the external terminal or the internal terminal to vibrate while detaching an insulator from the external terminal in at least a region surrounding the seat portion and pressing the external terminal against the seat portion.Type: GrantFiled: December 23, 2021Date of Patent: January 10, 2023Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomotaka Hagino, Yoichi Naruse
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Publication number: 20220115750Abstract: A welding step involves solid-state welding together an external terminal and a seat portion of an internal terminal by causing the external terminal or the internal terminal to vibrate while detaching an insulator from the external terminal in at least a region surrounding the seat portion and pressing the external terminal against the seat portion.Type: ApplicationFiled: December 23, 2021Publication date: April 14, 2022Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomotaka HAGINO, Yoichi Naruse
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Patent number: 11258138Abstract: A welding step involves solid-state welding together an external terminal and a seat portion of an internal terminal by causing the external terminal or the internal terminal to vibrate while detaching an insulator from the external terminal in at least a region surrounding the seat portion and pressing the external terminal against the seat portion.Type: GrantFiled: March 1, 2019Date of Patent: February 22, 2022Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomotaka Hagino, Yoichi Naruse
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Patent number: 10950916Abstract: A battery manufacturing method includes assembling an internal terminal, a gasket, a battery case component, an insulator, and an external terminal into a state where a cylindrical part of the gasket is fitted in a mounting hole of the battery case component, a projecting part of the internal terminal is fitted in the cylindrical part of the gasket, the insulator is disposed on an outer surface of the battery case component with the projecting part fitted in a through-hole, and the external terminal is disposed on top of the insulator so as to lie on the projecting part. The external terminal is pressed against the projecting part of the internal terminal, and the external terminal or the internal terminal is vibrated to thereby weld together the projecting part and the external terminal in a solid state.Type: GrantFiled: October 1, 2018Date of Patent: March 16, 2021Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomotaka Hagino, Yuta Nemoto, Tomohiro Ono, Yoichi Naruse
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Patent number: 10744644Abstract: A calibration area has a rectangular area and a peripheral area. The rectangular area includes a center area provided in the center portion and a first corner area, a second corner area, a third corner area, and a fourth corner area that are set at four corners sequentially in the circumferential direction. The center area has a line symmetry with respect to each of the two orthogonal axes passing through the center of the rectangular area. The heights of the areas are different.Type: GrantFiled: December 21, 2017Date of Patent: August 18, 2020Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomotaka Hagino, Naoto Kagami, Yoichi Naruse, Kaito Matsubara
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Publication number: 20190273240Abstract: A welding step involves solid-state welding together an external terminal and a seat portion of an internal terminal by causing the external terminal or the internal terminal to vibrate while detaching an insulator from the external terminal in at least a region surrounding the seat portion and pressing the external terminal against the seat portion.Type: ApplicationFiled: March 1, 2019Publication date: September 5, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomotaka HAGINO, Yoichi NARUSE
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Patent number: 10381631Abstract: A sealed-type battery includes an exterior body, a collector terminal, a hollow rivet defining a hollow section, and a reverse plate arranged between the collector terminal and the hollow rivet. The collector terminal includes: a projected section projected; a peripheral edge section provided; and a notch section provided in the peripheral edge section in a manner to surround the projected section and formed in a manner to reduce thickness of the collector terminal. In a projected direction of the projected section, the projected section is thicker than the peripheral edge section. A fitting section, to which the projected section is fitted, is provided in the reverse plate. The sealed-type battery includes a welded section that has a top surface opposing the hollow rivet and that joins the collector terminal and the reverse plate at a position between the projected section and the fitting section.Type: GrantFiled: November 16, 2017Date of Patent: August 13, 2019Assignee: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoto Kagami, Tomohiro Ono, Tomotaka Hagino, Yoichi Naruse, Yuta Nemoto, Toshinori Okura, Kaito Matsubara
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Publication number: 20190109315Abstract: A battery manufacturing method includes assembling an internal terminal, a gasket, a battery case component, an insulator, and an external terminal into a state where a cylindrical part of the gasket is fitted in a mounting hole of the battery case component, a projecting part of the internal terminal is fitted in the cylindrical part of the gasket, the insulator is disposed on an outer surface of the battery case component with the projecting part fitted in a through-hole, and the external terminal is disposed on top of the insulator so as to lie on the projecting part. The external terminal is pressed against the projecting part of the internal terminal, and the external terminal or the internal terminal is vibrated to thereby weld together the projecting part and the external terminal in a solid state.Type: ApplicationFiled: October 1, 2018Publication date: April 11, 2019Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomotaka HAGINO, Yuta NEMOTO, Tomohiro ONO, Yoichi NARUSE
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Publication number: 20180178378Abstract: A calibration area has a rectangular area and a peripheral area. The rectangular area includes a center area provided in the center portion and a first corner area, a second corner area, a third corner area, and a fourth corner area that are set at four corners sequentially in the circumferential direction. The center area has a line symmetry with respect to each of the two orthogonal axes passing through the center of the rectangular area. The heights of the areas are different.Type: ApplicationFiled: December 21, 2017Publication date: June 28, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Tomotaka HAGINO, Naoto KAGAMI, Yoichi NARUSE, Kaito MATSUBARA
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Publication number: 20180145307Abstract: A sealed-type battery includes an exterior body, a collector terminal, a hollow rivet defining a hollow section, and a reverse plate arranged between the collector terminal and the hollow rivet. The collector terminal includes: a projected section projected; a peripheral edge section provided; and a notch section provided in the peripheral edge section in a manner to surround the projected section and formed in a manner to reduce thickness of the collector terminal. In a projected direction of the projected section, the projected section is thicker than the peripheral edge section. A fitting section, to which the projected section is fitted, is provided in the reverse plate. The sealed-type battery includes a welded section that has a top surface opposing the hollow rivet and that joins the collector terminal and the reverse plate at a position between the projected section and the fitting section.Type: ApplicationFiled: November 16, 2017Publication date: May 24, 2018Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Naoto KAGAMI, Tomohiro ONO, Tomotaka HAGINO, Yoichi NARUSE, Yuta NEMOTO, Toshinori OKURA, Kaito MATSUBARA
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Patent number: 9406967Abstract: Provided is a method for producing a lithium secondary cell with which the concentrated precipitation of metal impurities at the negative electrode is inhibited and short circuiting is unlikely to occur. The production method includes, assembling together the positive electrode, the separator, and the negative electrode, and then impregnating the assembly with the nonaqueous electrolyte; charging the assembly within 1 min so that a maximum achieved potential of the positive electrode becomes 3.2 V or more with respect to the redox potential of lithium; allowing the assembly to stand for 10 min or less after the charging has ended; and discharging the assembly within 1 min after the standing step.Type: GrantFiled: December 17, 2010Date of Patent: August 2, 2016Assignee: Toyota Jidosha Kabushiki KaishaInventors: Hisataka Fujimaki, Katsuyuki Hojo, Tomotaka Hagino, Hiroyuki Kawaki, Shinya Kamada, Hisanao Kojima
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Publication number: 20130255075Abstract: Provided is a method for producing a lithium secondary cell with which the concentrated precipitation of metal impurities at the negative electrode is inhibited and short circuiting is unlikely to occur. The production method includes, assembling together the positive electrode, the separator, and the negative electrode, and then impregnating the assembly with the nonaqueous electrolyte; charging the assembly within 1 min so that a maximum achieved potential of the positive electrode becomes 3.2 V or more with respect to the redox potential of lithium; allowing the assembly to stand for 10 min or less after the charging has ended; and discharging the assembly within 1 min after the standing step.Type: ApplicationFiled: December 17, 2010Publication date: October 3, 2013Applicant: TOYOTA JIDOSHA KABUSHIKI KAISHAInventors: Hisataka Fujimaki, Katsuyuki Hojo, Tomotaka Hagino, HIroyuki Kawaki, Shinya Kamada, Hisanao Kojima