Patents by Inventor Tomaru Ogawa
Tomaru Ogawa 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: 20240154181Abstract: An all-solid-state battery includes a negative electrode current collector foil, a solid electrolyte layer, and a positive electrode layer. The negative electrode current collector foil is connected to an insulating first elastic body having a frame shape that follows and surrounds a shape of a peripheral edge of the solid electrolyte layer. The first elastic body is connected to a main surface of the solid electrolyte layer or a side surface of the solid electrolyte layer to form an internal space surrounded by the solid electrolyte layer, the negative electrode current collector foil, and the first elastic body. The solid electrolyte layer is disposed such that an outer shape thereof includes an outer shape of the positive electrode layer inside in plan view. When the all-solid-state battery is in a fully discharged state, the internal space is filled with a negative electrode layer having electrical conductivity and/or lithium ion conductivity.Type: ApplicationFiled: March 12, 2021Publication date: May 9, 2024Applicant: Nissan Motor Co., Ltd.Inventors: Kaishi Taguchi, Yoshitaka Ono, Tomaru Ogawa, Hirofumi Yasuda
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Patent number: 9350008Abstract: An automobile cell is provided with an electric power generating element composed of a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer and a separator interposed between the electrodes, a cell outer sheath made of a laminate film compositely composed of polymer and metal, a positive electrode terminal lead electrically conductive with the positive electrode and extending to an outside of the cell outer sheath, and a negative electrode terminal lead electrically conductive with the negative electrode and extending to the outside of the cell outer sheath.Type: GrantFiled: December 27, 2013Date of Patent: May 24, 2016Assignee: NISSAN MOTOR CO., LTD.Inventors: Osamu Shimamura, Hiroshi Sugawara, Hideaki Horie, Tomaru Ogawa, Takaaki Abe, Takanori Ito
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Patent number: 8753767Abstract: An automobile cell is provided with an electric power generating element composed of a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer and a separator interposed between the electrodes, a cell outer sheath made of a laminate film compositely composed of polymer and metal, a positive electrode terminal lead electrically conductive with the positive electrode and extending to an outside of the cell outer sheath, and a negative electrode terminal lead electrically conductive with the negative electrode and extending to the outside of the cell outer sheath.Type: GrantFiled: July 21, 2003Date of Patent: June 17, 2014Assignee: Nissan Motor Co., Ltd.Inventors: Osamu Shimamura, Hiroshi Sugawara, Hideaki Horie, Tomaru Ogawa, Takaaki Abe, Takanori Ito
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Publication number: 20140113178Abstract: An automobile cell is provided with an electric power generating element composed of a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer and a separator interposed between the electrodes, a cell outer sheath made of a laminate film compositely composed of polymer and metal, a positive electrode terminal lead electrically conductive with the positive electrode and extending to an outside of the cell outer sheath, and a negative electrode terminal lead electrically conductive with the negative electrode and extending to the outside of the cell outer sheath.Type: ApplicationFiled: December 27, 2013Publication date: April 24, 2014Applicant: NISSAN MOTOR CO., LTD.Inventors: Osamu SHIMAMURA, Hiroshi SUGAWARA, Hideaki HORIE, Tomaru OGAWA, Takaaki ABE, Takanori ITO
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Publication number: 20080014498Abstract: A cell electrode of the present invention has a current collector and an active material layer formed on the current collector. The active material layer contains: an active material in which a mean particle diameter is more than 1 ?m to 5 ?m or less and a BET specific surface area is 1 to 5 m2/g; and a conductive material of which content is 3 to 50 mass % with respect to 100 mass % of the active material.Type: ApplicationFiled: June 28, 2007Publication date: January 17, 2008Inventors: Tomaru OGAWA, Takamitsu SAITO, Tamaki MIURA, Taketo KANEKO
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Patent number: 7138208Abstract: A rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode includes a active material layer containing a positive electrode active material with the particle diameter of 5 ?m or less and having the thickness at a range of 20 to 80 ?m. Another rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode has two active material layers, each of which contains a positive electrode active material with a different diameter and has the thickness at a range of 20 to 30 ?m.Type: GrantFiled: August 28, 2001Date of Patent: November 21, 2006Assignee: Nissan Motor Co., Ltd.Inventors: Yuuji Tanjo, Yasuhiko Ohsawa, Hideaki Horie, Tatsuhiro Fukuzawa, Mikio Kawai, Tomaru Ogawa
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Publication number: 20040161360Abstract: A hydrogen storage material of the present invention comprises a plurality of planar molecular layers stacked, and a particle being inserted into the planar molecular layers to define an interlayer distance between the planar molecular layers. Because the hydrogen storage material of the present invention has a sufficient hydrogen storage capacity, it is possible to realize a fuel cell vehicle capable of storing a sufficient amount of hydrogen to attain a long-distance drive.Type: ApplicationFiled: January 14, 2004Publication date: August 19, 2004Applicant: NISSAN MOTOR CO., LTD.Inventors: Tomaru Ogawa, Junji Katamura, Masashi Ito, Masaharu Hatano, Mikio Kawai
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Publication number: 20040106038Abstract: An automobile cell is provided with an electric power generating element composed of a positive electrode having a positive electrode active substance layer, a negative electrode having a negative electrode active substance layer and a separator interposed between the electrodes, a cell outer sheath made of a laminate film compositely composed of polymer and metal, a positive electrode terminal lead electrically conductive with the positive electrode and extending to an outside of the cell outer sheath, and a negative electrode terminal lead electrically conductive with the negative electrode and extending to the outside of the cell outer sheath.Type: ApplicationFiled: July 21, 2003Publication date: June 3, 2004Applicant: NISSAN MOTOR CO., LTD.Inventors: Osamu Shimamura, Hiroshi Sugawara, Hideaki Horie, Tomaru Ogawa, Takaaki Abe, Takanori Ito
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Publication number: 20020028380Abstract: A rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode includes a active material layer containing a positive electrode active material with the particle diameter of 5 &mgr;m or less and having the thickness at a range of 20 to 80 &mgr;m. Another rechargeable lithium ion battery with high power density comprises a positive electrode; a negative electrode; and a non-aqueous electrolytic solution, in which the positive electrode has two active material layers, each of which contains a positive electrode active material with a different diameter and has the thickness at a range of 20 to 30 &mgr;m.Type: ApplicationFiled: August 28, 2001Publication date: March 7, 2002Inventors: Yuuji Tanjo, Yasuhiko Ohsawa, Hideaki Horie, Tatsuhiro Fukuzawa, Mikio Kawai, Tomaru Ogawa
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Publication number: 20020022183Abstract: A positive electrode active material is a layered lithium manganese compound represented by a general formula L1−xMO2, where x is a lithium-deficient quantity and larger than 1/5, and M is manganese or metals of two or more kinds containing manganese as a main component. The metals are preferably 3d-transition metals. The positive electrode active material has a high capacity and is excellent in structure stability. A rechargeable lithium-ion battery uses a positive electrode material containing the positive electrode active material and is excellent in cyclic stability.Type: ApplicationFiled: August 15, 2001Publication date: February 21, 2002Applicant: NISSAN MOTOR CO., LTD.Inventors: Tomaru Ogawa, Hidekazu Takahashi, Junji Katamura, Fumio Munakata