Patents by Inventor Fumiko Hashimoto
Fumiko Hashimoto 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: 20120208056Abstract: A battery including: a spirally wound electrode body in which a cathode having a cathode active material layer on a strip-shaped cathode current collector and an anode having an anode active material layer on a strip-shaped anode current collector are layered with a separator in between, and spirally wound in a planular state; and a lead joined to the cathode current collector or the anode current collector in a center portion of the spirally wound electrode body. An inner circumferential end of the cathode active material layer is provided in a region where the inner circumferential end does not overlap with the lead in a short axis direction of the spirally wound electrode body.Type: ApplicationFiled: April 25, 2012Publication date: August 16, 2012Applicant: SONY CORPORATIONInventors: Kumiko Takagi, Fumiko Hashimoto, Akira Yamaguchi, Yuzuru Fukushima, Hiroshi Inoue, Yasufumi Minato
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Patent number: 8168320Abstract: A battery including: a spirally wound electrode body in which a cathode having a cathode active material layer on a strip-shaped cathode current collector and an anode having an anode active material layer on a strip-shaped anode current collector are layered with a separator in between, and spirally wound in a planular state; and a lead joined to the cathode current collector or the anode current collector in a center portion of the spirally wound electrode body. An inner circumferential end of the cathode active material layer is provided in a region where the inner circumferential end does not overlap with the lead in a short axis direction of the spirally wound electrode body.Type: GrantFiled: July 23, 2010Date of Patent: May 1, 2012Assignee: Sony CorporationInventors: Kumiko Takagi, Fumiko Hashimoto, Akira Yamaguchi, Yuzuru Fukushima, Hiroshi Inoue, Yasufumi Minato
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Patent number: 8003243Abstract: A secondary battery capable of improving charge-discharge cycle characteristics in the case where an alloy material is used as an anode active material is provided. An exposed cathode region is disposed in an outer end portion of a cathode. The exposed cathode region includes an insulating protective member on at least one of an outer side and an inner side of the exposed cathode region in a position opposed to an outer end portion of an anode active material layer in one turn inside the outer end portion. In a cathode active material layer, a central angle between an outer end portion and a central end portion at the center of the spirally wound body is preferably within a range from 0° to ?90° inclusive from the central end portion in a winding direction.Type: GrantFiled: November 7, 2005Date of Patent: August 23, 2011Assignee: Sony CorporationInventors: Fumiko Hashimoto, Yuzuru Fukushima, Hiroyuki Suzuki
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Publication number: 20100291425Abstract: A battery that can secure the sufficient capacity, reduces deviation of the pressure distribution inside a spirally wound electrode body, and shows the superior charge and discharge characteristics is provided. The battery includes: a spirally wound electrode body in which a cathode having a cathode active material layer on a strip-shaped cathode current collector and an anode having an anode active material layer on a strip-shaped anode current collector are layered with a separator in between, and spirally wound in a planular state; and a lead jointed to the cathode current collector or the anode current collector in a center portion of the spirally wound electrode body. An inner circumferential end of the cathode active material layer is provided in a region where the inner circumferential end does not overlap with the lead in a short axis direction of the spirally wound electrode body.Type: ApplicationFiled: July 23, 2010Publication date: November 18, 2010Applicant: SONY CORPORATIONInventors: Kumiko TAKAGI, Fumiko HASHIMOTO, Akira YAMAGUCHI, Yuzuru FUKUSHIMA, Hiroshi INOUE, Yasufumi MINATO
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Patent number: 7811706Abstract: A battery capable of improving the energy density and cycle characteristics is provided. A cathode active material layer contains a complex oxide containing Li and Co as a cathode active material. An anode active material layer contains a CoSnC containing material containing Sn, Co, and C as an element, in which the content of C is from 16.8 wt % to 24.8 wt %, and the ratio of Co to the total of Sn and Co is from 30 wt % to 45 wt % as an anode active material. The surface density ratio of the cathode active material layer to the anode active material layer (surface density of the cathode active material layer/surface density of the anode active material layer) is from 2.77 to 3.90.Type: GrantFiled: November 7, 2005Date of Patent: October 12, 2010Assignee: Sony CorporationInventors: Yuzuru Fukushima, Shinji Hatake, Fumiko Hashimoto, Satoshi Mizutani, Hiroshi Inoue
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Patent number: 7807292Abstract: A battery that can secure the sufficient capacity, reduces deviation of the pressure distribution inside a spirally wound electrode body, and shows the superior charge and discharge characteristics is provided. The battery includes: a spirally wound electrode body in which a cathode having a cathode active material layer on a strip-shaped cathode current collector and an anode having an anode active material layer on a strip-shaped anode current collector are layered with a separator in between, and spirally wound in a planular state; and a lead jointed to the cathode current collector or the anode current collector in a center portion of the spirally wound electrode body. An inner circumferential end of the cathode active material layer is provided in a region where the inner circumferential end does not overlap with the lead in a short axis direction of the spirally wound electrode body.Type: GrantFiled: May 10, 2007Date of Patent: October 5, 2010Assignee: Sony CorporationInventors: Kumiko Takagi, Fumiko Hashimoto, Akira Yamaguchi, Yuzuru Fukushima, Hiroshi Inoue, Yasufumi Minato
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Publication number: 20080280193Abstract: A battery that can secure the sufficient capacity, reduces deviation of the pressure distribution inside a spirally wound electrode body, and shows the superior charge and discharge characteristics is provided. The battery includes: a spirally wound electrode body in which a cathode having a cathode active material layer on a strip-shaped cathode current collector and an anode having an anode active material layer on a strip-shaped anode current collector are layered with a separator in between, and spirally wound in a planular state; and a lead jointed to the cathode current collector or the anode current collector in a center portion of the spirally wound electrode body. An inner circumferential end of the cathode active material layer is provided in a region where the inner circumferential end does not overlap with the lead in a short axis direction of the spirally wound electrode body.Type: ApplicationFiled: May 10, 2007Publication date: November 13, 2008Applicant: Sony CorporationInventors: Kumiko Takagi, Fumiko Hashimoto, Akira Yamaguchi, Yuzuru Fukushima, Hiroshi Inoue, Yasufumi Minato
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Publication number: 20060115736Abstract: A secondary battery capable of improving charge-discharge cycle characteristics in the case where an alloy material is used as an anode active material is provided. An exposed cathode region is disposed in an outer end portion of a cathode. The exposed cathode region includes an insulating protective member on at least one of an outer side and an inner side of the exposed cathode region in a position opposed to an outer end portion of an anode active material layer in one turn inside the outer end portion. In a cathode active material layer, a central angle between an outer end portion and a central end portion at the center of the spirally wound body is preferably within a range from 0° to ?90° inclusive from the central end portion in a winding direction.Type: ApplicationFiled: November 7, 2005Publication date: June 1, 2006Inventors: Fumiko Hashimoto, Yuzuru Fukushima, Hiroyuki Suzuki
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Publication number: 20060099511Abstract: A battery capable of improving the energy density and cycle characteristics is provided. A cathode active material layer contains a complex oxide containing Li and Co as a cathode active material. An anode active material layer contains a CoSnC containing material containing Sn, Co, and C as an element, in which the content of C is from 16.8 wt % to 24.8 wt %, and the ratio of Co to the total of Sn and Co is from 30 wt % to 45 wt % as an anode active material. The surface density ratio of the cathode active material layer to the anode active material layer (surface density of the cathode active material layer/surface density of the anode active material layer) is from 2.77 to 3.90.Type: ApplicationFiled: November 7, 2005Publication date: May 11, 2006Inventors: Yuzuru Fukushima, Shinji Hatake, Fumiko Hashimoto, Satoshi Mizutani, Hiroshi Inoue
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Patent number: 5096116Abstract: As the temperature of a cooking pan is measured by a temperature detector, a moisture detecting means decides whether a material to be cooked is to be boiled, sauteed or fried. In the case of the material to be boiled, a scorching preventing device works to prevent scorching of the material. In the case of the material to be sauteed or fried, an overheating preventing device prevents overheating of the material. For this end, the temperature detector, detecting how the temperature of the cooking pan increases, controls a heating device via a heating controller. Accordingly, the material can be cooked safely irrespective of the cooking fashion if only a force adjusting knob and an ignition/extinction button are manipulated.Type: GrantFiled: February 6, 1991Date of Patent: March 17, 1992Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yosio Akamatu, Mitsuo Yokohata, Fumiko Hashimoto