Patents by Inventor Nobuyasu Negishi
Nobuyasu Negishi 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: 20180102528Abstract: According to one embodiment, a battery is provided. The battery includes an electrode body, a lead, a container member, and a terminal. The container member includes a main part and a terminal-connecting part adjacent to the main part. The electrode body is housed in the main part of the container member. The lead is electrically connected to the electrode body. The lead is housed in the terminal-connecting part of the container member. The terminal is electrically connected to the lead. The terminal is provided on the terminal-connecting part. A thickness of the main part of the container member is larger than a thickness of the terminal-connecting part of the container member.Type: ApplicationFiled: December 8, 2017Publication date: April 12, 2018Applicants: KABUSHIKI KAISHA TOSHIBA, Toshiba Infrastructure Systems & Solutions CorporationInventors: Nobuyasu NEGISHI, Tatsuya Hashimoto, Naoki Iwamura, Tatsuya Shinoda, Koichi Takeshita, Yasuaki Murashi
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Publication number: 20170271671Abstract: According to one embodiment, there is provided a nonaqueous electrolyte battery including a positive electrode, a negative electrode and a nonaqueous electrolyte. The positive electrode includes a positive electrode active material layer including a lithium nickel cobalt manganese composite oxide. The negative electrode includes a negative electrode active material layer including a spinel type lithium titanate. The nonaqueous electrolyte has an ion conductivity of not less than 7 mS/cm and not more than 10 mS/cm at 25° C. A capacity ratio p/n is within a range of not less than 1.4 and not more than 1.8. A thickness ratio Tp/Tn is within a range of not less than 1.05 and less than 1.3. A ratio Pp/Pn is within a range of not less than 0.55 and less than 0.8.Type: ApplicationFiled: March 9, 2017Publication date: September 21, 2017Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Dai YAMAMOTO, Yuki WATANABE, Tetsuro KANO, Nobuyasu NEGISHI, Hidesato SARUWATARI
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Publication number: 20170179535Abstract: According to an embodiment, an electrode is provided. The electrode group includes a stack. The stack includes a positive electrode, a negative electrode or negative electrodes, and separator. Each negative electrode includes a negative electrode current collector and a negative electrode layer provided on the negative electrode current collector. The electrode group satisfies following relational formulae (I) to (III): 10?a1/b1?16 (I); 0.7?D1/E1?1.4 (II); E1?85 (III). Here, the a1 [mm] is a thickness of the stack. The b1 [mm] is a thickness of the negative electrode current collector, or is a total thickness of the negative electrode current collectors. The D1 [?m] is a thickness of the positive electrode. The E1 [?m] is a thickness of the negative electrode.Type: ApplicationFiled: March 8, 2017Publication date: June 22, 2017Applicant: Kabushiki Kaisha ToshibaInventors: Yasuaki MURASHI, Nobuyasu NEGISHI, Tatsuya SHINODA, Koichi TAKESHITA, Koichi KAWAMURA, Tatsuya HASHIMOTO
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Publication number: 20160336576Abstract: A secondary battery according to one embodiment includes, an electrode group which is a cathode and an anode wound with a separator being interposed therebetween, a first lead having a first welding surface, a second lead having a second welding surface which is bent with respect to a winding axial direction of the electrode group, a first current collecting tab which is extended from one end of the electrode group on the winding axial direction, and welded onto the first welding surface of the first lead, a second current collecting tab which is extended from the other end of the electrode group on the winding axial direction, and welded onto the second welding surface of the second lead, a first terminal connected to the first lead, and a second terminal connected to the second lead.Type: ApplicationFiled: July 25, 2016Publication date: November 17, 2016Applicant: Kabushiki Kaisha ToshibaInventors: Tatsuya SHINODA, Tatsuya HASHIMOTO, Koichi KAWAMURA, Nobuyasu NEGISHI, Koichi TAKESHITA, Yasuaki MURASHI
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Publication number: 20160336554Abstract: A battery disclosed herein includes a container member housing an electrode body and a lead, a gasket, an external terminal, and a restraining member. The container member includes a terminal-connecting part having a thickness of 0.3 mm or less. The terminal-connecting part includes a through hole including a rising part. The gasket includes a hollow shaft inserted into the rising part. The external terminal includes a terminal shaft. The terminal shaft includes a diameter-reduction part. The restraining member restrains at least a part of the diameter-reduction part of the terminal shaft via the diameter-reduction part of the rising part and the shaft of the gasket. The inclination angle of the rising part is larger than the inclination angle of the terminal shaft.Type: ApplicationFiled: July 29, 2016Publication date: November 17, 2016Applicant: KABUSHIKI KAISHA TOSHIBAInventors: Nobuyasu NEGISHI, Tatsuya HASHIMOTO, Tatsuya SHINODA, Koichi KAWAMURA, Naoki IWAMURA
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Patent number: 8835068Abstract: According to one embodiment, a fuel cell includes an electric-power generator, a fuel distribution mechanism, and a pump. The electric-power generator includes a membrane electrode assembly including an anode, a cathode, and an electrolytic membrane. The fuel distribution mechanism includes a container and a thin tube. The container includes a fuel discharge surface, and contains the electric-power generator inside. The thin tube is formed in the container in a manner that a fuel outlet and a fuel inlet communicate with each other. The pump is connected directly to the fuel inlet.Type: GrantFiled: February 2, 2012Date of Patent: September 16, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Hiroyuki Hasebe, Nobuyasu Negishi, Koichi Kawamura, Shigeo Fukuda, Motoi Goto
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Patent number: 8765311Abstract: A fuel cell (1) includes an electromotive unit (2) having a membrane electrode assembly (MEA) (12), a fuel storage unit (4) storing a liquid fuel, and a fuel supply mechanism (3) supplying the fuel from the fuel storage unit (4) to a fuel electrode (7) of the membrane electrode assembly (12). The membrane electrode assembly (12) has a gas vent hole (17) provided in a manner to penetrate through at least an electrolyte membrane (11) to let a gas component generated on a side of the fuel electrode (7) escape to a side of an air electrode (10).Type: GrantFiled: February 25, 2008Date of Patent: July 1, 2014Assignee: Murata Manufacturing Co., Ltd.Inventors: Hideyuki Oozu, Yukinori Akamoto, Yuuichi Sato, Genta Oomichi, Hirofumi Kan, Daisuke Watanabe, Nobuyasu Negishi, Yuichi Yoshida, Asako Sato
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Patent number: 8404399Abstract: The present invention relates to a fuel cell including: a membrane electrode assembly (2) having a fuel electrode (13), an air electrode (16), and an electrolyte membrane (17) sandwiched therebetween; and a fuel storage unit (4) storing a liquid fuel. The fuel cell is capable of continuously generating electricity for long hours only by being replenished with a fuel, and therefore, attempts have been made to miniaturize the fuel cell to use it as a power source of portable electronic devices. When the membrane electrode assembly and the fuel storage unit in the fuel cell are connected via a flow path, a fuel supply state becomes uneven depending on the shape and the like of the flow path even though a supply amount of the fuel can be adjusted, which causes a problem such as a decrease in an output of the fuel cell.Type: GrantFiled: December 21, 2007Date of Patent: March 26, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Hiroyuki Hasebe, Yukinori Akamoto, Hideyuki Oozu, Hidenori Suzuki, Koichi Kawamura, Yuuichi Sato, Genta Oomichi, Nobuyasu Negishi, Takashi Shimoyamada, Yuichi Yoshida, Hirofumi Kan, Kenichi Takahashi
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Publication number: 20120135328Abstract: According to one embodiment, a fuel cell includes an electric-power generator, a fuel distribution mechanism, and a pump. The electric-power generator includes a membrane electrode assembly including an anode, a cathode, and an electrolytic membrane. The fuel distribution mechanism includes a container and a thin tube. The container includes a fuel discharge surface, and contains the electric-power generator inside. The thin tube is formed in the container in a manner that a fuel outlet and a fuel inlet communicate with each other. The pump is connected directly to the fuel inlet.Type: ApplicationFiled: February 2, 2012Publication date: May 31, 2012Inventors: Hiroyuki Hasebe, Nobuyasu Negishi, Koichi Kawamura, Shigeo Fukuda, Motoi Goto
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Publication number: 20120028161Abstract: According to one embodiment, a fuel cell includes a membrane electrode assembly including a plurality of anodes, a plurality of cathodes each forming a pair with a corresponding one of the plurality of anodes, and an electrolyte membrane interposed between the anodes and the cathodes, a current collector configured to interpose the membrane electrode assembly in between, a fuel supply mechanism arranged on the side of the anodes of the membrane electrode assembly and configured to supply the anodes with a fuel, and a moisturizing layer arranged on the side of the cathodes of the membrane electrode assembly. The current collector includes a slit arranged so as to face a region between the cathodes.Type: ApplicationFiled: October 6, 2011Publication date: February 2, 2012Inventors: Yuuichi Sato, Daisuke Watanabe, Genta Oomichi, Nobuyasu Negishi, Hirofumi Kan, Yukinori Akamoto
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Publication number: 20110281198Abstract: According to one embodiment, a fuel cell includes a membrane electrode assembly including an anode, a cathode, and an electrolyte membrane interposed between the anode and the cathode, and an electricity-collecting member including an anode electricity collector having a first electrode member which is in contact with the anode, a cathode electricity collector having a second electrode member which is in contact with the cathode, a connection portion having a conductor which connects the anode electricity collector and the cathode electricity collector, and an insulative protection film covering at least the conductor of the connection portion.Type: ApplicationFiled: July 21, 2011Publication date: November 17, 2011Inventors: Naoki IWAMURA, Nobuyasu Negishi, Hiroshi Yamazaki
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Publication number: 20110223497Abstract: A fuel cell includes a cathode catalyst layer, an anode catalyst layer, a proton-conductive membrane provided between the cathode catalyst layer and the anode catalyst layer, and a fuel transmitting layer that supplies a vaporized component of a liquid fuel to the anode catalyst layer. Water generated in the cathode catalyst layer is supplied to the anode catalyst layer via the proton-conductive membrane. The liquid fuel is one of a methanol aqueous solution having a concentration of over 50% by molar and liquid methanol.Type: ApplicationFiled: April 22, 2011Publication date: September 15, 2011Inventors: Hirofumi Kan, Nobuyasu Negishi, Asako Satoh, Yumiko Takizawa, Hiroyuki Hasebe, Yuuichi Sato, Jun Momma
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Patent number: 7994698Abstract: An electron emitting device includes an amorphous electron supply layer, an insulating layer formed on the electron supply layer, and an electrode formed on the insulating layer. The electron emits device emitting electrons when an electric field is applied between the electron supply layer and the electrode. The electron emitting device includes a concave portion provided by notching the electrode and the insulating layer to expose the electron supply layer, and a carbon layer covering the electrode and the concave portion except for an inner portion of an exposed surface 4a of the electron supply layer and being in contact with an edge portion of the exposed surface of the electron supply layer.Type: GrantFiled: March 26, 2007Date of Patent: August 9, 2011Assignee: Pioneer CorporationInventors: Ryota Tanaka, Nobuyasu Negishi, Kazuto Sakemura, Yoshiyuki Okuda, Tomonari Nakada, Atsushi Watanabe, Takamasa Yoshikawa, Kiyohide Ogasawara
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Patent number: 7986276Abstract: In electronic equipment using a fuel cell as a power source, an antenna and a fuel cell, which are provided in a lower case of a main body receiving electronic parts, are arranged at a given distance from each other. An acceptable communication state can be established in the electronic equipment.Type: GrantFiled: February 13, 2009Date of Patent: July 26, 2011Assignee: Kabushiki Kaisha ToshibaInventors: Yoshie Ozeki, Hiroyuki Hasebe, Hideyuki Oozu, Yukinori Akamoto, Takashi Shimoyamada, Hideaki Yasui, Kenichi Takahashi, Nobuyasu Negishi, Kiyoshi Senoue, Koichi Kawamura
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Publication number: 20110117465Abstract: Disclosed is a fuel cell (1) comprising a cell composition part (10) composed of an electrolyte membrane (17) sandwiched between an anode (fuel electrode) (13) and a cathode (air electrode) (16), and a fuel supply mechanism (40) disposed on the anode (fuel electrode) side of the cell composition part (10) and which supplies a fuel to the anode (fuel electrode) (13). The fuel cell (1) further comprises a moisture retaining layer (50) which is disposed on the cathode (air electrode) of the cell composition part (10) and which is impregnated with the water generated at the cathode (air electrode) (16), and a heat-radiating member (70) having an externally protruding heat-radiating portion (71) for releasing the heat generated by the cell composition part (10).Type: ApplicationFiled: November 18, 2010Publication date: May 19, 2011Inventors: Akira Yajima, Shinichi Kanbayashi, Nobuyasu Negishi, Risa Aoki, Genta Oomichi
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Patent number: 7902760Abstract: Provided is a method of driving an electron emission apparatus that drives the apparatus including a plurality of electron emission devices each having an electron supply layer formed of silicon, a silicon-based mixture or a compound thereof, an insulator layer formed on the electron supply layer and a thin film metal electrode formed on the insulator layer. The plurality of electron emission devices are sealed and the method includes: a driving step for supplying power between the electron supply layer and the thin film metal electrode to cause electrons to be emitted from the electron emission device and a reactivating step for applying a reactivating voltage at a level equal to or higher than an applied voltage value which causes discontinuity in differential value of the device current flowing between the electron supply layer and the thin film metal electrode with respect to the applied voltage.Type: GrantFiled: June 24, 2005Date of Patent: March 8, 2011Assignee: Pioneer CorporationInventors: Nobuyasu Negishi, Kazuto Sakemura, Takamasa Yoshikawa, Kiyohide Ogasawara
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Publication number: 20110008704Abstract: The present invention relates to a fuel cell including: a membrane electrode assembly (2) having a fuel electrode (13), an air electrode (16), and an electrolyte membrane (17) sandwiched therebetween; and a fuel storage unit (4) storing a liquid fuel. The fuel cell is capable of continuously generating electricity for long hours only by being replenished with a fuel, and therefore, attempts have been made to miniaturize the fuel cell to use it as a power source of portable electronic devices. When the membrane electrode assembly and the fuel storage unit in the fuel cell are connected via a flow path, a fuel supply state becomes uneven depending on the shape and the like of the flow path even though a supply amount of the fuel can be adjusted, which causes a problem such as a decrease in an output of the fuel cell.Type: ApplicationFiled: December 21, 2007Publication date: January 13, 2011Inventors: Hiroyuki Hasebe, Yukinori Akamoto, Hideyuki Oozu, Hidenori Suzuki, Koichi Kawamura, Yuuchi Sato, Genta Oomichi, Nobuyasu Negishi, Takashi Shimoyamada, Yuichi Yoshida, Hirofumi Kan, Kenichi Takahashi
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Patent number: 7834308Abstract: An imaging apparatus includes an electron emission array having electron sources arranged in matrix form and having a plurality of horizontal scan lines, a photoelectric conversion film opposed to the electron emission array, and a control and drive circuit configured to select one or more of the horizontal scan lines in a given video signal output period and to cause the electron sources included in the selected one or more horizontal scan lines to emit electrons toward the photoelectric conversion film to produce a video signal, wherein the control and drive circuit is configured to cause the electron sources included in unselected one or more horizontal scan lines not selected in the given video signal output period to emit electrons toward the photoelectric conversion film in a blanking period immediately preceding the given video signal output period.Type: GrantFiled: May 20, 2008Date of Patent: November 16, 2010Assignees: Nippon Hoso Kyokai, Hamamatsu Photonics K.K., Futaba Corporation, Pioneer CorporationInventors: Masakazu Namba, Yuki Honda, Yoshiyuki Hirano, Saburo Okazaki, Norifumi Egami, Toshihisa Watabe, Yoshiro Takiguchi, Akira Kobayashi, Shigeo Itoh, Masateru Taniguchi, Kazuhito Nakamura, Kenta Miya, Yoshiyuki Okuda, Nobuyasu Negishi
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Publication number: 20100285389Abstract: The present invention relates to a fuel cell including a plurality of unit membrane electrode assemblies having an electrolyte membrane sandwiched by fuel electrodes and air electrodes. In recent years, attempts have been made to use fuel cells as power sources of portable electronic devices, and if the fuel cell can be made compact, it becomes a remarkably advantageous power supply system for portable electronic devices. Generally, in the fuel cell, the plural unit membrane electrode assemblies are electrically connected in series, but the serial connection of the unit membrane electrode assemblies different in output has a problem such as the deterioration due to polarity reversal occurring in the unit membrane electrode assembly with a low output.Type: ApplicationFiled: September 24, 2008Publication date: November 11, 2010Inventors: Akira Yajima, Yoshie Ozeki, Nobuyasu Negishi, Koichi Kawamura, Takashi Shimoyamada, Motoi Goto, Kenichi Takahashi, Naoki Iwamura
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Publication number: 20100190087Abstract: A fuel distribution mechanism of a fuel cell, including a fuel inlet communicating with the supply channel, a plurality of fuel outlets which are open so as to be opposite the fuel electrode, and a fuel passage communicating with the fuel inlet and the fuel outlets in order to circulate the fuel from the fuel inlet to the fuel outlets, and the fuel passage is formed between the fuel inlet and the fuel outlets and comprises a plurality of branch passages that are adjusted in passage cross-sectional shape and branch structure as the branch passages extend from upstream to downstream between the fuel passage situated upstream and the fuel outlets and that have a desired channel resistance.Type: ApplicationFiled: March 17, 2010Publication date: July 29, 2010Inventors: Yuichi YOSHIDA, Hiroyuki Hasebe, Nobuyasu Negishi, Koichi Kawamura