Patents by Inventor Noriyoshi Munenaga
Noriyoshi Munenaga 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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Publication number: 20230170571Abstract: An energy storage apparatus includes an outer case which includes a body portion which accommodates an energy storage device and a lid body which closes an opening portion of the body portion in a state of being integrally joined to the opening portion, and a restricting member. The restricting member includes an abutment portion which abuts on an upper surface of the lid body, which is a surface on a side opposite to the body portion, to restrict movement of the lid body in a direction away from the opening portion, and a fixing portion fixed to the body portion.Type: ApplicationFiled: March 29, 2021Publication date: June 1, 2023Inventors: Ryoichi TERAHARA, Noriyoshi MUNENAGA
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Patent number: 10644296Abstract: An energy storage device includes a positive electrode terminal, a first electrode body and a second electrode body, and a positive electrode current collector electrically connecting the positive electrode terminal and the first and second electrode bodies. The positive electrode current collector includes a terminal connection portion electrically connected to the positive electrode terminal, inner electrode body connection portions connected to the first and second electrode bodies, and a coupling portion extending from an end of the terminal connection portion and coupling the terminal connection portion and the inner electrode body connection portions. The coupling portion has a substantially trapezoidal shape with a width at a connection end with the end of the terminal connection portion being larger than a width at a connection end with the inner electrode body connection portions.Type: GrantFiled: August 29, 2017Date of Patent: May 5, 2020Assignee: GS Yuasa International Ltd.Inventors: Tomonori Kishimoto, Noriyoshi Munenaga
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Patent number: 9905369Abstract: Provided is an energy storage device including a container with high productivity and satisfactory corrosion resistance. In the energy storage device including the container housing an electrode assembly having a positive electrode and a negative electrode, and electrolyte solution, the container is made of stainless steel including 0.09% by weight or more aluminum and has welded portions and where the stainless steel is welded.Type: GrantFiled: May 20, 2013Date of Patent: February 27, 2018Assignee: GS YUASA INTERNATIONAL LTD.Inventors: Hirotsugu Ioka, Keisuke Anami, Shinya Kitano, Noriyoshi Munenaga, Taku Nakamura
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Publication number: 20170358790Abstract: An energy storage device includes a positive electrode terminal, a first electrode body and a second electrode body, and a positive electrode current collector electrically connecting the positive electrode terminal and the first and second electrode bodies. The positive electrode current collector includes a terminal connection portion electrically connected to the positive electrode terminal, inner electrode body connection portions connected to the first and second electrode bodies, and a coupling portion extending from an end of the terminal connection portion and coupling the terminal connection portion and the inner electrode body connection portions. The coupling portion has a substantially trapezoidal shape with a width at a connection end with the end of the terminal connection portion being larger than a width at a connection end with the inner electrode body connection portions.Type: ApplicationFiled: August 29, 2017Publication date: December 14, 2017Inventors: Tomonori KISHIMOTO, Noriyoshi MUNENAGA
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Patent number: 9793569Abstract: A battery includes positive and negative external terminals having exposed portions exposed from a casing to the outside, positive and negative current collectors connected to the external terminals, and electrode assemblies having positive and negative electrodes and a separator. The positive and negative electrodes are wound with the separator being interposed so as to have positions shifted to opposite sides in a width direction to the separator. Formed in the casing is a narrowly elongated gap extending between the positive current collector side and the negative current collector side. The positive electrode side of the gap is closed by a closure member. A foreign material is prevented from moving without decreasing an electric capacity of the battery and deteriorating injection property of an electrolytic solution.Type: GrantFiled: September 25, 2013Date of Patent: October 17, 2017Assignee: GS YUASA INTERNATIONAL LTD.Inventors: Keita Hamakawa, Noriyoshi Munenaga, Satoru Kawakami, Tomoko Nishikawa
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Patent number: 9780352Abstract: An energy storage device includes a positive electrode terminal, a first electrode body and a second electrode body, and a positive electrode current collector electrically connecting the positive electrode terminal and the first and second electrode bodies. The positive electrode current collector includes a terminal connection portion electrically connected to the positive electrode terminal, inner electrode body connection portions connected to the first and second electrode bodies, and a coupling portion extending from an end of the terminal connection portion and coupling the terminal connection portion and the inner electrode body connection portions. The coupling portion has a substantially trapezoidal shape with a width at a connection end with the end of the terminal connection portion being larger than a width at a connection end with the inner electrode body connection portions.Type: GrantFiled: September 9, 2015Date of Patent: October 3, 2017Assignee: GS Yuasa International Ltd.Inventors: Tomonori Kishimoto, Noriyoshi Munenaga
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Patent number: 9698404Abstract: A connecting body for electrically connecting a power generating element and an electrode terminal positioned on a surface of a device container for housing the power generating element, the connecting body including: a plate portion positioned on the surface of the device container; and a protruding portion being in a position on a surface of the plate portion and displaced from a position of the electrode terminal, and having a tip end protruding to face the power generating element and a base with a peripheral edge surrounded with a principal face of the plate portion.Type: GrantFiled: August 28, 2012Date of Patent: July 4, 2017Assignee: GS YUASA INTERNATIONAL LTD.Inventors: Noriyoshi Munenaga, Taku Nakamura, Wataru Mashiko, Hiroshi Tasai
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Patent number: 9583742Abstract: A battery comprises: a container including a bottom portion, long-sidewall portions each standing on a corresponding one of longer side portions of the bottom portion, short-sidewall portions each standing on a corresponding one of two shorter side portions of the bottom portion, and a welded portion in which portions of a flat plate are mutually welded; an electrode assembly housed in the container; an electrode terminal; and a lid closing the container, the container having a cuboid shape, the bottom portion being rectangular, the long-sidewall portions each being rectangular, the short-sidewall portions each being rectangular, the flat plate being made of metal and being folded, and the portions of the flat plate being mutually abutting or overlapping.Type: GrantFiled: May 22, 2012Date of Patent: February 28, 2017Assignee: GS YUASA INTERNATIONAL LTD.Inventors: Noriyoshi Munenaga, Taku Nakamura, Wataru Mashiko, Takeshi Kawahara
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Publication number: 20160079583Abstract: An energy storage device includes a positive electrode terminal, a first electrode body and a second electrode body, and a positive electrode current collector electrically connecting the positive electrode terminal and the first and second electrode bodies. The positive electrode current collector includes a terminal connection portion electrically connected to the positive electrode terminal, inner electrode body connection portions connected to the first and second electrode bodies, and a coupling portion extending from an end of the terminal connection portion and coupling the terminal connection portion and the inner electrode body connection portions. The coupling portion has a substantially trapezoidal shape with a width at a connection end with the end of the terminal connection portion being larger than a width at a connection end with the inner electrode body connection portions.Type: ApplicationFiled: September 9, 2015Publication date: March 17, 2016Inventors: Tomonori KISHIMOTO, Noriyoshi MUNENAGA
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Patent number: 9112233Abstract: Disclosed is a method for manufacturing a cell which includes: a first step of manufacturing a core using a core manufacturing apparatus, the apparatus including a pair of winding shafts disposed with a rotation center of the apparatus interposed therebetween, the pair of winding shafts orbitally moving about the rotation center; and a second step of fabricating a laminated electrode member with a sheet-shaped positive electrode, a sheet-shaped negative electrode and a pair of sheet-shaped separators interposed thereto to be arranged alternately with the electrodes; and winding the laminated electrode member around a circumferential surface of the core. The first step includes: inserting a sheet having a higher strength than the separators between the winding shafts; orbitally moving the pair of winding shafts; and adhesively bonding or melt-bonding overlapped portions of the sheet at the winding shafts.Type: GrantFiled: January 28, 2010Date of Patent: August 18, 2015Assignee: GS Yuasa International Ltd.Inventors: Isao Suzuki, Noriyoshi Munenaga, Taku Nakamura, Hiroshi Tasai, Shun Ito
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Patent number: 9034513Abstract: An energy storage device includes an electrode assembly, a container that contains the electrode assembly therein, a metallic cover member that closes the opening of the container and has a first fitting portion, and a current collector having a second fitting portion that is fitted to the first fitting portion in a fitted state. Thus, the compact energy storage device having a large capacity can suppress the positional deviation between the cover member and the current collector.Type: GrantFiled: March 11, 2013Date of Patent: May 19, 2015Assignee: Lithium Energy JapanInventors: Wataru Mashiko, Noriyoshi Munenaga, Satoru Kawakami
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Publication number: 20150017521Abstract: Provided is an energy storage device including a container with high productivity and satisfactory corrosion resistance. In the energy storage device including the container housing an electrode assembly having a positive electrode and a negative electrode, and electrolyte solution, the container is made of stainless steel including 0.09% by weight or more aluminum and has welded portions and where the stainless steel is welded.Type: ApplicationFiled: May 20, 2013Publication date: January 15, 2015Applicants: GS Yuasa International Ltd., Lithium Energy JapanInventors: Hirotsugu Ioka, Keisuke Anami, Shinya Kitano, Noriyoshi Munenaga, Taku Nakamura
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Patent number: 8932740Abstract: Provided is a battery cell that allow the inner surfaces of connection strips of a current collector to be brought into contact with the outermost circumferential surface of a layered electrode portion of a power generating element while preventing the connection strips from scratching the layered electrode portion.Type: GrantFiled: June 16, 2010Date of Patent: January 13, 2015Assignee: GS Yuasa International Ltd.Inventors: Noriyoshi Munenaga, Taku Nakamura
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Publication number: 20140255767Abstract: An energy storage device includes an electrode assembly, a container that contains the electrode assembly therein, a metallic cover member that closes the opening of the container and has a first fitting portion, and a current collector having a second fitting portion that is fitted to the first fitting portion in a fitted state. Thus, the compact energy storage device having a large capacity can suppress the positional deviation between the cover member and the current collector.Type: ApplicationFiled: March 11, 2013Publication date: September 11, 2014Applicant: Lithium Energy JapanInventors: Wataru MASHIKO, Noriyoshi Munenaga, Satoru Kawakami
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Publication number: 20140212740Abstract: A connecting body for electrically connecting a power generating element and an electrode terminal positioned on a surface of a device container for housing the power generating element, the connecting body including: a plate portion positioned on the surface of the device container; and a protruding portion being in a position on a surface of the plate portion and displaced from a position of the electrode terminal, and having a tip end protruding to face the power generating element and a base with a peripheral edge surrounded with a principal face of the plate portion.Type: ApplicationFiled: August 28, 2012Publication date: July 31, 2014Applicant: Lithium Energy JapanInventors: Noriyoshi Munenaga, Taku Nakamura, Wataru Mashiko, Hiroshi Tasai
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Publication number: 20140087223Abstract: A battery includes positive and negative external terminals having exposed portions exposed from a casing to the outside, positive and negative current collectors connected to the external terminals, and electrode assemblies having positive and negative electrodes and a separator. The positive and negative electrodes are wound with the separator being interposed so as to have positions shifted to opposite sides in a width direction to the separator. Formed in the casing is a narrowly elongated gap extending between the positive current collector side and the negative current collector side. The positive electrode side of the gap is closed by a closure member. A foreign material is prevented from moving without decreasing an electric capacity of the battery and deteriorating injection property of an electrolytic solution.Type: ApplicationFiled: September 25, 2013Publication date: March 27, 2014Applicant: Lithium Energy JapanInventors: Keita Hamakawa, Noriyoshi Munenaga, Satoru Kawakami, Tomoko Nishikawa
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Patent number: 8329338Abstract: The metal foil of the positive electrode 1a or the negative electrode 1b in the power generating element 1 is connected along the connecting plate portion 2b which is folded, twisted, and provided in a protruding condition from the main portion 2a of the current-collector connector 2; hence the shape of the current-collector connector 2 becomes easy to form, and a battery capable of enhancing current collection efficiency, reliability and workability can be provided.Type: GrantFiled: August 18, 2011Date of Patent: December 11, 2012Assignee: GS Yuasa International Ltd.Inventors: Hiroshi Tasai, Isao Suzuki, Takeshi Shimozono, Noriyoshi Munenaga, Tetsuzo Kojima, Takehito Matsubara
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Publication number: 20120301779Abstract: A battery comprises: a container including a bottom portion, long-sidewall portions each standing on a corresponding one of longer side portions of the bottom portion, short-sidewall portions each standing on a corresponding one of two shorter side portions of the bottom portion, and a welded portion in which portions of a flat plate are mutually welded; an electrode assembly housed in the container; an electrode terminal; and a lid closing the container, the container having a cuboid shape, the bottom portion being rectangular, the long-sidewall portions each being rectangular, the short-sidewall portions each being rectangular, the flat plate being made of metal and being folded, and the portions of the flat plate being mutually abutting or overlapping.Type: ApplicationFiled: May 22, 2012Publication date: November 29, 2012Applicant: Lithium Energy JapanInventors: Noriyoshi MUNENAGA, Taku NAKAMURA, Wataru MASHIKO, Takeshi KAWAHARA
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Publication number: 20120088138Abstract: Provided is a battery cell that allow the inner surfaces of connection strips of a current collector to be brought into contact with the outermost circumferential surface of a layered electrode portion of a power generating element while preventing the connection strips from scratching the layered electrode portion.Type: ApplicationFiled: June 16, 2010Publication date: April 12, 2012Inventors: Noriyoshi Munenaga, Taku Nakamura
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Publication number: 20120021267Abstract: The metal foil of the positive electrode 1a or the negative electrode 1b in the power generating element 1 is connected along the connecting plate portion 2b which is folded, twisted, and provided in a protruding condition from the main portion 2a of the current-collector connector 2; hence the shape of the current-collector connector 2 becomes easy to form, and a battery capable of enhancing current collection efficiency, reliability and workability can be provided.Type: ApplicationFiled: August 18, 2011Publication date: January 26, 2012Applicant: GS YUASA INTERNATIONAL LTD.Inventors: Hiroshi TASAI, Isao SUZUKI, Takeshi SHIMOZONO, Noriyoshi MUNENAGA, Tetsuzo KOJIMA, Takehito MATSUBARA