Patents by Inventor Sachio Akahira
Sachio Akahira 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: 20230299255Abstract: An electrode for a battery includes an electrode body and an electrode tab. The electrode body includes a current collector and an active material layer provided on the current collector. The electrode tab is coupled to the current collector and extends in a first direction. The electrode body includes a first curved end part, a first noncurved end part, a second curved end part, and a second noncurved end part. The first curved end part has a convex shape and is disposed on a back side relative to the electrode tab in a second direction intersecting with the first direction. The first noncurved end part is coupled to the first curved end part and forms a first corner part at a coupling portion to the first curved end part. The first corner part has a convex shape toward the back side. The second curved end part has a convex shape and is disposed on a front side relative to the electrode tab in the second direction.Type: ApplicationFiled: May 24, 2023Publication date: September 21, 2023Inventors: Hironobu KOBAYASHI, Sachio AKAHIRA
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Patent number: 10347874Abstract: A battery pack includes: a battery having a main surface; and a resin layer capable of being integrated with an armor member armoring the battery so that at least a part of the main surface of the battery is exposed and covering the main surface of the battery, wherein the resin layer is formed by curing a reaction curable resin having a viscosity of not less than 80 mPa·second to less than 1000 mPa·second and a thickness of the resin layer on the main surface of the battery ranges from 0.05 mm to smaller than 0.4 mm.Type: GrantFiled: April 5, 2011Date of Patent: July 9, 2019Assignee: Murata Manufacturing Co., Ltd.Inventors: Takeru Yamamoto, Sachio Akahira, Toshinori Saito, Yasuhiro Oi, Nobuya Okano
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Publication number: 20150194642Abstract: A battery pack includes: a battery having a main surface; and a resin layer capable of being integrated with an armor member armoring the battery so that at least a part of the main surface of the battery is exposed and covering the main surface of the battery, wherein the resin layer is formed by curing a reaction curable resin having a viscosity of not less than 80 mPa·second to less than 1000 mPa·second and a thickness of the resin layer on the main surface of the battery ranges from 0.05 mm to smaller than 0.4 mm.Type: ApplicationFiled: March 19, 2015Publication date: July 9, 2015Inventors: Takeru Yamamoto, Sachio Akahira, Toshinori Saito, Yasuhiro Oi, Nobuya Okano
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Publication number: 20120183819Abstract: A battery pack includes a battery and a casing covering the battery and formed of a shape-memory resin. A portion or the entirety of the casing is deformed by heating at a predetermined temperature. The deformed casing returns to an original shape at the predetermined temperature or higher.Type: ApplicationFiled: December 14, 2011Publication date: July 19, 2012Applicant: SONY CORPORATIONInventors: Takeru Yamamoto, Toshinori Saito, Sachio Akahira
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Publication number: 20120121944Abstract: A battery pack includes a formed portion coating at least a portion of the outer surface of a battery or a plurality of battery packs with reaction-curable resin; and spacers having dimension-absorbing ability and attached to the rear surface of the formed portion.Type: ApplicationFiled: October 18, 2011Publication date: May 17, 2012Inventors: Takeru YAMAMOTO, Sachio Akahira, Masahiro Sawaguchi
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Publication number: 20110250475Abstract: A battery pack includes: a battery having a main surface; and a resin layer capable of being integrated with an armor member armoring the battery so that at least a part of the main surface of the battery is exposed and covering the main surface of the battery, wherein the resin layer is formed by curing a reaction curable resin having a viscosity of not less than 80 mPa·second to less than 1000 mPa·second and a thickness of the resin layer on the main surface of the battery ranges from 0.05 mm to smaller than 0.4 mm.Type: ApplicationFiled: April 5, 2011Publication date: October 13, 2011Applicant: SONY CORPORATIONInventors: Takeru Yamamoto, Sachio Akahira, Toshinori Saito, Yasuhiro Oi, Nobuya Okano
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Patent number: 7604842Abstract: Provided are an electrode manufacturing apparatus and a method of manufacturing an electrode in which an electrode capable of preventing the occurrence of an internal short circuit is manufactured. A current collector is passed through a coating position in a downward direction by a reference roll. Thereby, just after coating of a mixture is interrupted, a built-up mixture between the current collector and a coating outlet is pulled in a downward direction by the current collector, so the position of the built-up mixture is lower than the position of the coating outlet. Therefore, the adhesion of the mixture to the coating outlet can be prevented, and as a result, a non-forming region where no mixture is formed can be prevented from being coated with the mixture.Type: GrantFiled: March 5, 2003Date of Patent: October 20, 2009Assignee: Sony CorporationInventors: Masayuki Shida, Sachio Akahira, Osamu Tahara, Takanobu Yoshino
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Patent number: 7157179Abstract: A non-aqueous electrolyte cell in which the cell capacity is improved and positioning accuracy of external terminals is assured. A unit cell is housed in an exterior packaging material of a laminated film and encapsulated on heat sealing. To elongated positive and negative electrodes of the unit cell are electrically connected electrode terminal leads which are exposed to outside of the exterior packaging material as the leads are surrounded by heat fused portions. The unit cell is a wound assembly of the positive and negative electrodes each of which is includes of a current collector carrying a layer of an active material. The electrode terminal leads are mounted on the current collectors of the positive and negative electrodes in the vicinity of the innermost turn of the wound assembly. In manufacturing the unit cell, the positions of the electrode terminal leads are detected and positioned with respect to the flat winding arbor. The positive and negative electrodes then are wound on the winding arbor.Type: GrantFiled: February 16, 2004Date of Patent: January 2, 2007Assignee: Sony CorporationInventor: Sachio Akahira
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Patent number: 7052551Abstract: To provide a method of manufacturing a battery capable of providing an equal amount of electrolyte in each battery and of enhancing productivity and coating machines employed thereof. The sensor detects a boundary from the collector exposed region C of the belt-shaped positive electrode to the positive electrode mixture layer exposed region B, on the basis of the detection timing, the shutter is withdrawn to open the flowing path and the proportioning pomp is driven. Following this, when the sensor detected a boundary from the positive electrode mixture layer exposed region B to a collector exposed region C, and on the basis of the detection timing, the shutter is protruded inside the flowing path to close the flowing path and the proportioning pump stops. As a result of this, the electrolyte stops to be delivered from the nozzle. The electrolyte layers are intermittently formed by repeating the same procedures.Type: GrantFiled: May 28, 2003Date of Patent: May 30, 2006Assignee: Sony CorporationInventors: Masayuki Shida, Sachio Akahira, Takanobu Yoshino, Kazuhiro Imaizumi, Tsuyoshi Sugiyama
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Publication number: 20040161665Abstract: A non-aqueous electrolyte cell in which the cell capacity is improved and positioning accuracy of external terminals is assured. An unit cell is housed in an exterior packaging material of a laminated film and encapsulated on heat sealing. To elongated positive and negative terminals of the unit cell are electrically connected electrode terminal leads which are exposed to outside of the exterior packaging material as the leads are surrounded by heat fused portions. The unit cell is a wound assembly of the positive and negative electrodes each of which is comprised of a current collector carrying a layer of an active material. The electrode terminal leads are mounted on the current collectors of the positive and negative electrodes in the vicinity of the innermost turn of the wound assembly. In manufacturing the unit cell, the positions of the electrode terminal leads are detected and positioned with respect to the flat winding arbor. The positive and negative electrodes then are wound on the winding arbor.Type: ApplicationFiled: February 16, 2004Publication date: August 19, 2004Inventor: Sachio Akahira
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Patent number: 6776807Abstract: To provide a method of manufacturing a battery capable of providing an equal amount of electrolyte in each battery and of enhancing productivity and coating machines employed thereof. The sensor detects a boundary from the collector exposed region C of the belt-shaped positive electrode to the positive electrode mixture layer exposed region B, on the basis of the detection timing, the shutter is withdrawn to open the flowing path and the proportioning pomp is driven. Following this, when the sensor detected a boundary from the positive electrode mixture layer exposed region B to a collector exposed region C, and on the basis of the detection timing, the shutter is protruded inside the flowing path to close the flowing path and the proportioning pump stops. As a result of this, the electrolyte stops to be delivered from the nozzle. The electrolyte layers are intermittently formed by repeating the same procedures.Type: GrantFiled: March 19, 2001Date of Patent: August 17, 2004Assignee: Sony CorporationInventors: Masayuki Shida, Sachio Akahira, Takanobu Yoshino, Kazuhiro Imaizumi, Tsuyoshi Sugiyama
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Patent number: 6706080Abstract: A non-aqueous electrolyte cell in which the cell capacity is improved and positioning accuracy of external terminals is assured. A unit cell is housed in an exterior packaging material of a laminated film and encapsulated on heat sealing. To elongated positive and negative electrodes of the unit cell are electrically connected electrode terminal leads which are exposed to outside of the exterior packaging material as the leads are surrounded by heat fused portions. The unit cell is a wound assembly of the positive and negative electrodes each of which is includes a current collector carrying a layer of an active material. The electrode terminal leads are mounted on the current collectors of the positive and negative electrodes in the vicinity of the innermost turn of the wound assembly. In manufacturing the unit cell, the positions of the electrode terminal leads are detected and positioned with respect to the flat winding arbor. The positive and negative electrodes then are wound on the winding arbor.Type: GrantFiled: June 29, 2001Date of Patent: March 16, 2004Assignee: Sony CorporationInventor: Sachio Akahira
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Publication number: 20030232127Abstract: Provided are an electrode manufacturing apparatus and a method of manufacturing an electrode in which an electrode capable of preventing the occurrence of an internal short circuit is manufactured. A current collector is passed through a coating position in a downward direction by a reference roll. Thereby, just after coating of a mixture is interrupted, a built-up mixture between the current collector and a coating outlet is pulled in a downward direction by the current collector, so the position of the built-up mixture is lower than the position of the coating outlet. Therefore, the adhesion of the mixture to the coating outlet can be prevented, and as a result, a non-forming region where no mixture is formed can be prevented from being coated with the mixture.Type: ApplicationFiled: March 5, 2003Publication date: December 18, 2003Inventors: Masayuki Shida, Sachio Akahira, Osamu Tahara, Takanobu Yoshino
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Publication number: 20030205201Abstract: To provide a method of manufacturing a battery capable of providing an equal amount of electrolyte in each battery and of enhancing productivity and coating machines employed thereof. The sensor detects a boundary from the collector exposed region C of the belt-shaped positive electrode to the positive electrode mixture layer exposed region B, on the basis of the detection timing, the shutter is withdrawn to open the flowing path and the proportioning pomp is driven. Following this, when the sensor detected a boundary from the positive electrode mixture layer exposed region B to a collector exposed region C, and on the basis of the detection timing, the shutter is protruded inside the flowing path to close the flowing path and the proportioning pump stops. As a result of this, the electrolyte stops to be delivered from the nozzle. The electrolyte layers are intermittently formed by repeating the same procedures.Type: ApplicationFiled: May 28, 2003Publication date: November 6, 2003Inventors: Masayuki Shida, Sachio Akahira, Takanobu Yoshino, Kazuhiro Imaizumi, Tsuyoshi Sugiyama
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Patent number: 6387562Abstract: A non-aqueous electrolyte cell in which the cell capacity is improved and positioning accuracy of external terminals is assured. A unit cell is housed in an exterior packaging material of a laminated film and encapsulated on heat sealing. To elongated positive and negative electrodes of the unit cell are electrically connected electrode terminal leads which are exposed to outside of the exterior packaging material as the leads are surrounded by heat fused portions. The unit cell is a wound assembly of the positive and negative electrodes each of which is includes a current collector carrying a layer of an active material. The electrode terminal leads are mounted on the current collectors of the positive and negative electrodes in the vicinity of the innermost turn of the wound assembly. In manufacturing the unit cell, the positions of the electrode terminal leads are detected and positioned with respect to the flat winding arbor. The positive and negative electrodes then are wound on the winding arbor.Type: GrantFiled: October 21, 1999Date of Patent: May 14, 2002Assignee: Sony CorporationInventor: Sachio Akahira
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Publication number: 20020029465Abstract: To provide a method of manufacturing a battery capable of providing an equal amount of electrolyte in each battery and of enhancing productivity and coating machines employed thereof. The sensor detects a boundary from the collector exposed region C of the belt-shaped positive electrode to the positive electrode mixture layer exposed region B, on the basis of the detection timing, the shutter is withdrawn to open the flowing path and the proportioning pomp is driven. Following this, when the sensor detected a boundary from the positive electrode mixture layer exposed region B to a collector exposed region C, and on the basis of the detection timing, the shutter is protruded inside the flowing path to close the flowing path and the proportioning pump stops. As a result of this, the electrolyte stops to be delivered from the nozzle. The electrolyte layers are intermittently formed by repeating the same procedures.Type: ApplicationFiled: March 19, 2001Publication date: March 14, 2002Inventors: Masayuki Shida, Sachio Akahira, Takanobu Yoshino, Kazuhiro Imaizumi, Tsuyoshi Sugiyama
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Publication number: 20010046623Abstract: A non-aqueous electrolyte cell in which the cell capacity is improved and positioning accuracy of external terminals is assured. An unit cell is housed in an exterior packaging material of a laminated film and encapsulated on heat sealing. To elongated positive and negative terminals of the unit cell are electrically connected electrode terminal leads which are exposed to outside of the exterior packaging material as the leads are surrounded by heat fused portions. The unit cell is a wound assembly of the positive and negative electrodes each of which is comprised of a current collector carrying a layer of an active material. The electrode terminal leads are mounted on the current collectors of the positive and negative electrodes in the vicinity of the innermost turn of the wound assembly. In manufacturing the unit cell, the positions of the electrode terminal leads are detected and positioned with respect to the flat winding arbor. The positive and negative electrodes then are wound on the winding arbor.Type: ApplicationFiled: June 29, 2001Publication date: November 29, 2001Inventor: Sachio Akahira
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Patent number: 6277515Abstract: A solid electrolyte battery is provided which is able to satisfactorily perform discharge of a large electric current in a short time and large electric current pulse even in a low temperature environment. A solid electrolyte battery incorporates: a battery structure portion constituted by forming a positive-electrode active-material layer in a portion of the surface of a positive-electrode collector and a negative-electrode active-material layer in a portion of the surface of a negative-electrode collector to be opposite to each other through a polymer electrolyte.Type: GrantFiled: May 12, 1999Date of Patent: August 21, 2001Assignee: Sony CorporationInventor: Sachio Akahira