Patents by Inventor Kazuhiro Kitaoka
Kazuhiro Kitaoka 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).
-
Publication number: 20240088450Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.Type: ApplicationFiled: November 21, 2023Publication date: March 14, 2024Applicant: SANYO Electric Co., Ltd.Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
-
Patent number: 11862762Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.Type: GrantFiled: January 18, 2023Date of Patent: January 2, 2024Assignee: SANYO Electric Co., Ltd.Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
-
Publication number: 20230155182Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.Type: ApplicationFiled: January 18, 2023Publication date: May 18, 2023Applicant: SANYO Electric Co., Ltd.Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
-
Patent number: 11569552Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.Type: GrantFiled: September 30, 2021Date of Patent: January 31, 2023Assignee: SANYO Electric Co., Ltd.Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
-
Patent number: 11316235Abstract: An electrode body including positive electrode plate and negative electrode plate includes a positive electrode tab portion at an end portion on the sealing plate side. The positive electrode plate is electrically connected to a positive electrode collector including a collector body portion and a collector connection. A pressure-sensitive current breaking mechanism includes a conductive member including an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion that is disposed on the electrode body side of the deformation plate and that is connected to the deformation plate. The collector connection is disposed between the current breaking mechanism and one of the large-area side walls of the prismatic outer package, and the positive electrode tab portion is connected to the collector connection.Type: GrantFiled: May 12, 2016Date of Patent: April 26, 2022Assignees: SANYO Electric Co., Ltd., Panasonic CorporationInventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Isao Fujiwara, Hiromasa Yagi
-
Publication number: 20220021086Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.Type: ApplicationFiled: September 30, 2021Publication date: January 20, 2022Applicant: SANYO Electric Co., Ltd.Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
-
Patent number: 11165125Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.Type: GrantFiled: February 19, 2019Date of Patent: November 2, 2021Assignee: SANYO Electric Co., Ltd.Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
-
Patent number: 11050092Abstract: A first electrode body element and a second electrode body element including a positive electrode plate and a negative electrode plate are fabricated, a first positive electrode tab group of the first electrode body element and a second positive electrode tab group of the second electrode body element are connected to a lead portion of a positive electrode collector attached to a sealing plate, a first negative electrode tab group of the first electrode body element and a second negative electrode tab group of the second electrode body element are connected to a lead portion of a negative electrode collector attached to the sealing plate, and the first electrode body element and the second electrode body element are arranged together as one such that an electrode body is formed.Type: GrantFiled: May 6, 2019Date of Patent: June 29, 2021Assignee: SANYO Electric Co., Ltd.Inventors: Ryoichi Wakimoto, Hirofumi Furukawa, Kazuhiro Kitaoka, Yasuhiro Yamauchi
-
Patent number: 10644301Abstract: An electrode body including a positive electrode plate and a negative electrode plate include a positive electrode tab portion at an end portion on a sealing plate side, a positive electrode collector electrically connected to the positive electrode plate include a collector body portion, a collector extension portion, a collector connection, and a collector connection portion. A pressure-sensitive current breaking mechanism includes a conductive member having an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion disposed on the electrode body side of the deformation plate and connected to the deformation plate. The collector extension portion is offset from the collector body portion and is disposed on the sealing plate side with respect to the collector body portion. Positive electrode tab portion is connected to the collector connection bent back at an end portion of the collector extension portion.Type: GrantFiled: April 16, 2019Date of Patent: May 5, 2020Assignees: SANYO Electric Co., Ltd., PANASONIC CORPORATIONInventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Isao Fujiwara, Hiromasa Yagi
-
Publication number: 20190288270Abstract: An electrode body including a positive electrode plate and a negative electrode plate include a positive electrode tab portion at an end portion on a sealing plate side, a positive electrode collector electrically connected to the positive electrode plate include a collector body portion, a collector extension portion, a collector connection, and a collector connection portion. A pressure-sensitive current breaking mechanism includes a conductive member having an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion disposed on the electrode body side of the deformation plate and connected to the deformation plate. The collector extension portion is offset from the collector body portion and is disposed on the sealing plate side with respect to the collector body portion. Positive electrode tab portion is connected to the collector connection bent back at an end portion of the collector extension portion.Type: ApplicationFiled: April 16, 2019Publication date: September 19, 2019Applicants: SANYO Electric Co., Ltd., Panasonic CorporationInventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Isao Fujiwara, Hiromasa Yagi
-
Publication number: 20190260087Abstract: A first electrode body element and a second electrode body element including a positive electrode plate and a negative electrode plate are fabricated, a first positive electrode tab group of the first electrode body element and a second positive electrode tab group of the second electrode body element are connected to a lead portion of a positive electrode collector attached to a sealing plate, a first negative electrode tab group of the first electrode body element and a second negative electrode tab group of the second electrode body element are connected to a lead portion of a negative electrode collector attached to the sealing plate, and the first electrode body element and the second electrode body element are arranged together as one such that an electrode body is formed.Type: ApplicationFiled: May 6, 2019Publication date: August 22, 2019Applicant: SANYO Electric Co., Ltd.Inventors: Ryoichi Wakimoto, Hirofumi Furukawa, Kazuhiro Kitaoka, Yasuhiro Yamauchi
-
Patent number: 10326169Abstract: A first electrode body element and a second electrode body element including a positive electrode plate and a negative electrode plate are fabricated, a first positive electrode tab group of the first electrode body element and a second positive electrode tab group of the second electrode body element are connected to a lead portion of a positive electrode collector attached to a sealing plate, a first negative electrode tab group of the first electrode body element and a second negative electrode tab group of the second electrode body element are connected to a lead portion of a negative electrode collector attached to the sealing plate, and the first electrode body element and the second electrode body element are arranged together as one such that an electrode body is formed.Type: GrantFiled: October 28, 2016Date of Patent: June 18, 2019Assignee: SANYO Electric Co., Ltd.Inventors: Ryoichi Wakimoto, Hirofumi Furukawa, Kazuhiro Kitaoka, Yasuhiro Yamauchi
-
Publication number: 20190181416Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.Type: ApplicationFiled: February 19, 2019Publication date: June 13, 2019Applicant: SANYO Electric Co., Ltd.Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
-
Patent number: 10305084Abstract: An electrode body including a positive electrode plate and a negative electrode plate include a positive electrode tab portion at an end portion on a sealing plate side, a positive electrode collector electrically connected to the positive electrode plate include a collector body portion, a collector extension portion, a collector connection, and a collector connection portion. A pressure-sensitive current breaking mechanism includes a conductive member having an opening portion on an electrode body side, a deformation plate that seals the opening portion, and a collector body portion disposed on the electrode body side of the deformation plate and connected to the deformation plate. The collector extension portion is offset from the collector body portion and is disposed on the sealing plate side with respect to the collector body portion. Positive electrode tab portion is connected to the collector connection bent back at an end portion of the collector extension portion.Type: GrantFiled: May 10, 2016Date of Patent: May 28, 2019Assignees: SANYO Electric Co., Ltd., Panasonic CorporationInventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Isao Fujiwara, Hiromasa Yagi
-
Patent number: 10305085Abstract: An electrode body including a positive electrode plate and a negative electrode plate is accommodated in a prismatic outer package having an opening. The opening of the prismatic outer package is sealed with a sealing plate. The electrode body includes positive electrode tab portions stacked at an end portion on the sealing plate side. The stacked positive electrode tab portions are divided into two forming a first tab group and a second tab group. A resin member serving as a holding member holding a metal member is fixed to the sealing plate. The metal member is disposed between the first tab group and the second tab group. Lead portions of a positive electrode collector is connected to the first tab group and the second tab group at a surface positioned opposite to a surface that opposes the metal member.Type: GrantFiled: September 28, 2016Date of Patent: May 28, 2019Assignee: SANYO Electric Co., Ltd.Inventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Yasuhiro Yamauchi
-
Patent number: 10249867Abstract: A flat-shaped winding electrode body in which a positive electrode plate and a negative electrode plate are wound with a separator interposed therebetween includes a positive electrode tab portion and a negative electrode tab portion at one end in a direction in which a winding axis of the winding electrode body extends. Two pieces of the flat-shaped winding electrode body are housed in a prismatic outer body so that the winding axis of each piece is disposed in a direction perpendicular to a sealing plate, and the positive electrode tab portion and the negative electrode tab portion are located on one end of the winding electrode body closer to the sealing plate than the other end.Type: GrantFiled: March 9, 2016Date of Patent: April 2, 2019Assignee: SANYO Electric Co., Ltd.Inventors: Kazuhiro Kitaoka, Masakazu Yamada, Yohei Muroya
-
Patent number: 10199628Abstract: A prismatic secondary battery in which a deformation plate becoming deformed when a pressure inside the battery becomes equivalent to or higher than a predetermined value is disposed in a conductive path between a positive electrode plate and a positive electrode terminal. A positive electrode collector electrically connected to the positive electrode plate includes a collector body portion disposed on an electrode body side of the deformation plate, a collector connection that extends from an end of the collector body portion in a longitudinal direction of a sealing plate towards the sealing plate, and a lead portion that extends from the collector connection in the longitudinal direction of the sealing plate. A positive electrode tab portion is connected to the lead portion.Type: GrantFiled: September 28, 2016Date of Patent: February 5, 2019Assignee: SANYO Electric Co., Ltd.Inventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Yasuhiro Yamauchi
-
Patent number: 9882236Abstract: A prismatic secondary battery in which a deformation plate becoming deformed when a pressure inside the battery becomes equivalent to or higher than a predetermined value is disposed in a conductive path between a positive electrode plate and a positive electrode terminal, a positive electrode collector connected to the positive electrode plate includes a collector body portion, a collector connection, and a lead portion, the end portion of the lead portion on one end portion side of the sealing plate in the longitudinal direction is positioned on the one end portion side of the sealing plate in the longitudinal direction with respect to an end portion of the collector body portion on the one end portion side of the sealing plate in the longitudinal direction, the collector body portion is connected to the deformation plate, and the lead portion is connected to a positive lead portion.Type: GrantFiled: September 28, 2016Date of Patent: January 30, 2018Assignee: SANYO Electric Co., Ltd.Inventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Yasuhiro Yamauchi
-
Publication number: 20170125848Abstract: A first electrode body element and a second electrode body element including a positive electrode plate and a negative electrode plate are fabricated, a first positive electrode tab group of the first electrode body element and a second positive electrode tab group of the second electrode body element are connected to a lead portion of a positive electrode collector attached to a sealing plate, a first negative electrode tab group of the first electrode body element and a second negative electrode tab group of the second electrode body element are connected to a lead portion of a negative electrode collector attached to the sealing plate, and the first electrode body element and the second electrode body element are arranged together as one such that an electrode body is formed.Type: ApplicationFiled: October 28, 2016Publication date: May 4, 2017Applicant: SANYO Electric Co., Ltd.Inventors: Ryoichi Wakimoto, Hirofumi Furukawa, Kazuhiro Kitaoka, Yasuhiro Yamauchi
-
Publication number: 20170092980Abstract: A prismatic secondary battery in which a deformation plate becoming deformed when a pressure inside the battery becomes equivalent to or higher than a predetermined value is disposed in a conductive path between a positive electrode plate and a positive electrode terminal, a positive electrode collector connected to the positive electrode plate includes a collector body portion, a collector connection, and a lead portion, the end portion of the lead portion on one end portion side of the sealing plate in the longitudinal direction is positioned on the one end portion side of the sealing plate in the longitudinal direction with respect to an end portion of the collector body portion on the one end portion side of the sealing plate in the longitudinal direction, the collector body portion is connected to the deformation plate, and the lead portion is connected to a positive lead portion.Type: ApplicationFiled: September 28, 2016Publication date: March 30, 2017Applicant: SANYO Electric Co., Ltd.Inventors: Ryoichi Wakimoto, Kazuhiro Kitaoka, Yasuhiro Yamauchi