Patents by Inventor Takuya Kenko
Takuya Kenko 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: 11329273Abstract: A method for manufacturing a secondary battery in which the preparation of at least one of a positive electrode and ta negative electrode includes forming an electrode material layer on a metal sheet material to serve as an electrode current collector, thereby providing an electrode precursor, and cutting out electrodes from the electrode precursor to form a plurality of electrodes. Each of the electrodes has a non-rectangular shape.Type: GrantFiled: November 15, 2018Date of Patent: May 10, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Masahiro Otsuka, Toru Kawai, Masashi Higuchi, Takuya Kenko
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Patent number: 11329323Abstract: A manufacturing method of a secondary battery is provided to improve a manufacturing efficiency of a non-rectangular electrode. The manufacturing method is provided for a secondary battery and includes forming the non-rectangular electrode. The step of forming the electrode includes, prior to forming an electrode precursor by applying an electrode material layer raw material to a metal sheet material that becomes a current collector, controlling a wettability of a local portion of a surface of the metal sheet material to the electrode material layer raw material and forming a wettability control region in the local portion. The local portion becomes a cutaway region of the non-rectangular electrode.Type: GrantFiled: November 8, 2019Date of Patent: May 10, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Retsu Tahara, Toru Kawai, Masato Fujioka, Takuya Kenko, Masahiro Otsuka
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Patent number: 11315744Abstract: An electric storage device includes a case having a substantially rectangular shape including a cutout part. An electrode body is disposed in the case and includes a first electrode, a second electrode, and a separator disposed between the first and second electrodes. An electrolyte is located in the case and at least partially impregnating the electrode body. A first electrode terminal is located on a first part of a side surface of the case and is electrically connected to the first electrode by a first connection member which has elasticity in a direction extending from the first electrode terminal to the first electrode. A second electrode terminal is located on a second part of the side surface of the case and is electrically connected to the second electrode by a second elastic connection member which has elasticity in a direction extending from the second electrode terminal to the second electrode.Type: GrantFiled: November 12, 2018Date of Patent: April 26, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Takuya Kenko, Toru Kawai, Masahiro Otsuka, Masashi Higuchi
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Patent number: 11264660Abstract: An electrical storage device includes a case having first and second opposed main walls which face one another and at least one side wall coupled the first and second main walls. The case having a generally rectangular shape with outer corners and includes a cutout part having inner corners. An integrated electrode body is located in the case and is joined to the first main wall. The integrated body includes a first electrode, a second electrode, and a separator disposed between the first and second electrodes. The electrode body has a bending strength which is higher than a bending strength of the first main wall. An electrolyte fills the case.Type: GrantFiled: November 12, 2018Date of Patent: March 1, 2022Assignee: MURATA MANUFACTURING CO., LTD.Inventors: Masahiro Otsuka, Toru Kawai, Masashi Higuchi, Takuya Kenko
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Publication number: 20200076003Abstract: A manufacturing method of a secondary battery is provided to improve a manufacturing efficiency of a non-rectangular electrode. The manufacturing method is provided for a secondary battery and includes forming the non-rectangular electrode. The step of forming the electrode includes, prior to forming an electrode precursor by applying an electrode material layer raw material to a metal sheet material that becomes a current collector, controlling a wettability of a local portion of a surface of the metal sheet material to the electrode material layer raw material and forming a wettability control region in the local portion. The local portion becomes a cutaway region of the non-rectangular electrode.Type: ApplicationFiled: November 8, 2019Publication date: March 5, 2020Inventors: Retsu Tahara, Toru Kawai, Masato Fujioka, Takuya Kenko, Masahiro Otsuka
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Publication number: 20190103602Abstract: A method for manufacturing a secondary battery in which the preparation of at least one of a positive electrode and to negative electrode includes forming an electrode material layer on a metal sheet material to serve as an electrode current collector, thereby providing an electrode precursor, and cutting out electrodes from the electrode precursor to form a plurality of electrodes. Each of the electrodes has a non-rectangular shape.Type: ApplicationFiled: November 15, 2018Publication date: April 4, 2019Inventors: Masahiro Otsuka, Toru Kawai, Masashi Higuchi, Takuya Kenko
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Publication number: 20190097181Abstract: An electric storage device comprises a rectangular parallelepiped case including first and second opposed main walls which are separated in a thickness direction of the case. An integrated electrode body is located in the case between the first and second main walls. The integrated electrode body includes a positive electrode, a negative electrode, and a separator disposed between the positive and the negative electrodes. The electrode body has a bending strength which is higher than bending strength of the first main wall which is physically coupled to the electrode body. An electrolyte is located in the case.Type: ApplicationFiled: November 27, 2018Publication date: March 28, 2019Inventors: Masahiro Otsuka, Toru Kawai, Masashi Higuchi, Takuya Kenko
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Publication number: 20190081286Abstract: An electrical storage device includes a case having first and second opposed main walls which face one another and at least one side wall coupled the first and second main walls. The case having a generally rectangular shape with outer corners and includes a cutout part having inner corners. An integrated electrode body is located in the case and is joined to the first main wall. The integrated body includes a first electrode, a second electrode, and a separator disposed between the first and second electrodes. The electrode body has a bending strength which is higher than a bending strength of the first main wall. An electrolyte fills the case.Type: ApplicationFiled: November 12, 2018Publication date: March 14, 2019Inventors: Masahiro Otsuka, Toru Kawai, Masashi Higuchi, Takuya Kenko
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Publication number: 20190080855Abstract: An electric storage device includes a case having a substantially rectangular shape including a cutout part. An electrode body is disposed in the case and includes a first electrode, a second electrode, and a separator disposed between the first and second electrodes. An electrolyte is located in the case and at least partially impregnating the electrode body. A first electrode terminal is located on a first part of a side surface of the case and is electrically connected to the first electrode by a first connection member which has elasticity in a direction extending from the first electrode terminal to the first electrode. A second electrode terminal is located on a second part of the side surface of the case and is electrically connected to the second electrode by a second elastic connection member which has elasticity in a direction extending from the second electrode terminal to the second electrode.Type: ApplicationFiled: November 12, 2018Publication date: March 14, 2019Inventors: Takuya Kenko, Toru Kawai, Masahiro Otsuka, Masashi Higuchi