Patents by Inventor Kiichiro Oishi
Kiichiro Oishi 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: 7901807Abstract: A band-shaped laminate having a flexible elongated substrate, a negative collector, a solid electrolyte, a positive active material, and a positive collector in this order is wound in a plate shape with the flexible elongated substrate placed inside. The band-shaped laminate that is laminated in a particular order is wound with the substrate placed inside, whereby a short-circuit occurrence ratio can be decreased. Furthermore, the band-shaped laminate includes the solid electrolyte, and is wound in a plate shape, whereby the reduction in thickness and the increase in volumetric energy density can be achieved.Type: GrantFiled: March 31, 2004Date of Patent: March 8, 2011Assignee: Panasonic CorporationInventors: Kazuyoshi Honda, Sadayuki Okazaki, Kiichiro Oishi, Makoto Takahashi, Yoriko Takai, Junichi Inaba, Hiroshi Higuchi, Shuji Ito
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Patent number: 7816032Abstract: A negative active material thin film provided on a collector layer directly or via an underlying layer has a multi-layered configuration including at least two silicon thin films containing silicon as a main component. Because of this, even when the thickness of the negative active material thin film is increased, the increase in thickness of one silicon thin film can be prevented by increasing the number of silicon thin films. Thus, the diameter of silicon particles substantially in an inverse truncated cone shape is not enlarged in the silicon thin film. Accordingly, in an energy device having a thin film mainly containing silicon as a negative active material, even when the thickness of the negative active material layer is increased to obtain a larger capacity, cycle characteristics are not degraded.Type: GrantFiled: November 4, 2004Date of Patent: October 19, 2010Assignee: Panasonic CorporationInventors: Kazuyoshi Honda, Kiichiro Oishi, Yasuhiko Bito, Takayuki Nakamoto
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Patent number: 7816869Abstract: A plasma display panel in which a first substrate having a protective layer formed thereon opposes a second substrate across a discharge space, with the substrates being sealed around a perimeter thereof. At a surface of the protective layer, first and second materials of different electron emission properties are exposed to the discharge space, with at least one of the materials existing in a dispersed state. The first and second materials may be first and second crystals, and the second crystal may be dispersed throughout the first crystal.Type: GrantFiled: January 16, 2008Date of Patent: October 19, 2010Assignee: Panasonic CorporationInventors: Yukihiro Morita, Masatoshi Kitagawa, Kiichiro Oishi, Mikihiko Nishitani
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Publication number: 20100143583Abstract: A negative active material thin film containing silicon as a main component is formed on a collector. A composition gradient layer, in which a composition distribution of a main component element of the collector and silicon is varied smoothly, is formed in the vicinity of the interface between the collector and the negative active material thin film. The composition gradient layer contains at least one kind of third element selected from W, Mo, Cr, Co, Fe, Mn, Ni, and P, in addition to the elements contained in the collector and the elements contained in the negative active material thin film. The third element irregularizes the atomic arrangement at the interface between the collector and the negative active material thin film.Type: ApplicationFiled: February 12, 2010Publication date: June 10, 2010Applicant: PANASONIC CORPORATIONInventors: Kazuyoshi Honda, Kiichiro Oishi, Yasuhiko Bito, Takayuki Nakamoto
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Publication number: 20100039033Abstract: A plasma display panel in which a first substrate having a protective layer formed thereon opposes a second substrate across a discharge space, with the substrates being sealed around a perimeter thereof. At a surface of the protective layer, first and second materials of different electron emission properties are exposed to the discharge space, with at least one of the materials existing in a dispersed state. The first and second materials may be first and second crystals, and the second crystal may be dispersed throughout the first crystal.Type: ApplicationFiled: January 16, 2008Publication date: February 18, 2010Inventors: Yukihiro Morita, Masatoshi Kitagawa, Kiichiro Oishi, Mikihiko Nishitani
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Patent number: 7579109Abstract: A sheet-shaped energy device includes at least sheet-shaped battery cells, in each of which a positive collector, a negative collector, a positive active material, and an electrolyte are laminated, and a plurality of substrates in a thickness direction. An internal wiring pattern and/or an optical function part are formed on at least one substrate excluding a substrate constituting an outermost layer of the energy device among the plurality of substrates. Because of this, a constraint on the arrangement of various kinds of components used simultaneously with the sheet-shaped energy device and lengthy wiring can be reduced in electronic equipment.Type: GrantFiled: January 3, 2005Date of Patent: August 25, 2009Assignee: Panasonic CorporationInventors: Kazuyoshi Honda, Sadayuki Okazaki, Kiichiro Oishi, Yoriko Takai
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Patent number: 7432656Abstract: A plasma display panel in which a first substrate having a protective layer formed thereon opposes a second substrate across a discharge space, with the substrates being sealed around a perimeter thereof. At a surface of the protective layer, first and second materials of different electron emission properties are exposed to the discharge space, with at least one of the materials existing in a dispersed state. The first and second materials may be first and second crystals, and the second crystal may be dispersed throughout the first crystal.Type: GrantFiled: November 12, 2003Date of Patent: October 7, 2008Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Yukihiro Morita, Masatoshi Kitagawa, Kiichiro Oishi, Mikihiko Nishitani
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Publication number: 20060012721Abstract: A plasma display panel in which a first substrate having a protective layer formed thereon opposes a second substrate across a discharge space, with the substrates being sealed around a perimeter thereof. At a surface of the protective layer, first and second materials of different electron emission properties are exposed to the discharge space, with at least one of the materials existing in a dispersed state. The first and second materials may be first and second crystals, and the second crystal may be dispersed throughout the first crystal.Type: ApplicationFiled: November 12, 2003Publication date: January 19, 2006Inventors: Yukihiro Morita, Masatoshi Kitagawa, Kiichiro Oishi, Mikihiko Nishitani
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Publication number: 20050158619Abstract: A sheet-shaped energy device includes at least sheet-shaped battery cells, in each of which a positive collector, a negative collector, a positive active material, and an electrolyte are laminated, and a plurality of substrates in a thickness direction. An internal wiring pattern and/or an optical function part are formed on at least one substrate excluding a substrate constituting an outermost layer of the energy device among the plurality of substrates. Because of this, a constraint on the arrangement of various kinds of components used simultaneously with the sheet-shaped energy device and lengthy wiring can be reduced in electronic equipment.Type: ApplicationFiled: January 3, 2005Publication date: July 21, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuyoshi Honda, Sadayuki Okazaki, Kiichiro Oishi, Yoriko Takai
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Publication number: 20050118502Abstract: A negative active material thin film containing silicon as a main component is formed on a collector. A composition gradient layer, in which a composition distribution of a main component element of the collector and silicon is varied smoothly, is formed in the vicinity of the interface between the collector and the negative active material thin film. The composition gradient layer contains at least one kind of third element selected from W, Mo, Cr, Co, Fe, Mn, Ni, and P, in addition to the elements contained in the collector and the elements contained in the negative active material thin film. The third element irregularizes the atomic arrangement at the interface between the collector and the negative active material thin film.Type: ApplicationFiled: November 1, 2004Publication date: June 2, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuyoshi Honda, Kiichiro Oishi, Yasuhiko Bito, Takayuki Nakamoto
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Publication number: 20050118503Abstract: A negative active material thin film provided on a collector layer directly or via an underlying layer has a multi-layered configuration including at least two silicon thin films containing silicon as a main component. Because of this, even when the thickness of the negative active material thin film is increased, the increase in thickness of one silicon thin film can be prevented by increasing the number of silicon thin films. Thus, the diameter of silicon particles substantially in an inverse truncated cone shape is not enlarged in the silicon thin film. Accordingly, in an energy device having a thin film mainly containing silicon as a negative active material, even when the thickness of the negative active material layer is increased to obtain a larger capacity, cycle characteristics are not degraded.Type: ApplicationFiled: November 4, 2004Publication date: June 2, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuyoshi Honda, Kiichiro Oishi, Yasuhiko Bito, Takayuki Nakamoto
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Publication number: 20050118504Abstract: An auxiliary film-forming source containing a main component element of a collector and a negative active material film-forming source for forming a negative active material thin film are placed adjacent to each other so that parts of film-forming particles from the respective sources are mixed with each other. The collector is moved relatively from the auxiliary film-forming source side to the negative active material film-forming source side, whereby a negative active material thin film containing silicon as a main component is formed on the collector by a vacuum film-forming process. A composition gradient layer, in which a composition distribution of a main component element of the collector and silicon constituting the negative active material is varied smoothly, is formed at the interface between the negative active material thin film and the collector.Type: ApplicationFiled: November 10, 2004Publication date: June 2, 2005Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuyoshi Honda, Kiichiro Oishi, Yasuhiko Bito, Takayuki Nakamoto
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Publication number: 20040197639Abstract: A band-shaped laminate having a flexible elongated substrate, a negative collector, a solid electrolyte, a positive active material, and a positive collector in this order is wound in a plate shape with the flexible elongated substrate placed inside. The band-shaped laminate that is laminated in a particular order is wound with the substrate placed inside, whereby a short-circuit occurrence ratio can be decreased. Furthermore, the band-shaped laminate includes the solid electrolyte, and is wound in a plate shape, whereby the reduction in thickness and the increase in volumetric energy density can be achieved.Type: ApplicationFiled: March 31, 2004Publication date: October 7, 2004Applicant: Matsushita Electric Industrial Co., Ltd.Inventors: Kazuyoshi Honda, Sadayuki Okazaki, Kiichiro Oishi, Makoto Takahashi, Yoriko Takai, Junichi Inaba, Hiroshi Higuchi, Shuji Ito