Patents by Inventor Hidehiko Tajima
Hidehiko Tajima 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: 11873269Abstract: A methanol production system of the present disclosure includes: a reformer including a reaction furnace configured to reform methane in a raw material gas to produce a reformed gas containing CO and H2; a reduced-gas generator configured to reduce CO2 to produce a reduced gas containing CO; and a methanol-containing gas generator configured to produce a methanol-containing gas which contains methanol from a reformed gas produced in the reaction furnace and a reduced gas produced in the reduced-gas generator.Type: GrantFiled: November 30, 2021Date of Patent: January 16, 2024Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Shoichi Furukawa, Hidehiko Tajima
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Patent number: 11618958Abstract: A hydrogen-oxygen generation system includes an electrolytic cell configured to generate hydrogen and oxygen by electrolyzing water, and discharge the hydrogen and the oxygen as separate generated gasses. An accumulator includes a water storage chamber configured to store the water, and a gas chamber configured to receive a pressurized gas, and the water storage chamber and the gas chamber are separated from each other by an elastic body membrane. The accumulator is configured to transfer the water stored in the water storage chamber toward the electrolytic cell at a transfer pressure in accordance with a pressure of the pressurized gas in the gas chamber. A water supply unit is configured to supply the water to the water storage chamber, and a gas supply unit is configured to supply the pressurized gas to the gas chamber.Type: GrantFiled: October 24, 2019Date of Patent: April 4, 2023Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., JAPAN AEROSPACE EXPLORATION AGENCY, KYUSHU UNIVERSITY, NATIONAL UNIVERSITY CORPORATIONInventors: Atsuko Homma, Kenichi Nagamoto, Naoki Ogawa, Yuta Nakatsuchi, Hidehiko Tajima, Yusaku Nasu, Yoshitsugu Sone, Hiroshige Matsumoto
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Publication number: 20220169585Abstract: A methanol production system of the present disclosure includes: a reformer including a reaction furnace configured to reform methane in a raw material gas to produce a reformed gas containing CO and H2; a reduced-gas generator configured to reduce CO2 to produce a reduced gas containing CO; and a methanol-containing gas generator configured to produce a methanol-containing gas which contains methanol from a reformed gas produced in the reaction furnace and a reduced gas produced in the reduced-gas generator.Type: ApplicationFiled: November 30, 2021Publication date: June 2, 2022Inventors: Shoichi FURUKAWA, Hidehiko TAJIMA
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Publication number: 20210355590Abstract: A hydrogen-oxygen generation system includes an electrolytic cell configured to generate hydrogen and oxygen by electrolyzing supplied water, and to discharge the generated hydrogen and oxygen as separate generated gasses. An accumulator includes a water storage chamber in which water is stored, and a gas chamber to which pressurized gas is supplied, and the water storage chamber and the gas chamber are separated from each other by an elastic body membrane. The accumulator is configured to transfer water stored in the water storage chamber toward the electrolytic cell at a transfer pressure in accordance with the pressure of the pressurized gas in the gas chamber. A water supply unit is configured to supply water to the water storage chamber, and a gas supply unit is configured to supply the pressurized gas to the gas chamber.Type: ApplicationFiled: October 24, 2019Publication date: November 18, 2021Inventors: Atsuko HOMMA, Kenichi NAGAMOTO, Naoki OGAWA, Yuta NAKATSUCHI, Hidehiko TAJIMA, Yusaku NASU, Yoshitsugu SONE, Hiroshige MATSUMOTO
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Publication number: 20210339199Abstract: An acidic treatment liquid processing apparatus includes: a tank having an interior space; a diaphragm permeable to a metal cation and separating the interior space of the tank into a first chamber and a second chamber; a first electrode disposed in the first chamber; a second electrode disposed in the second chamber; a power supply configured to apply a voltage while using the first electrode as an anode and the second electrode as a cathode; a first liquid passing part configured to pass an acidic treatment liquid containing a dichromate ion and a metal cation into the first chamber; and a second liquid passing part configured to pass an acid aqueous solution into the second chamber.Type: ApplicationFiled: August 26, 2019Publication date: November 4, 2021Inventors: Koji IMASAKA, Hiroaki MIKAWA, Kohei KAWASAKI, Mitsuhiro ISHIGAKI, Masahiko NAGAI, Hidehiko TAJIMA, Ayako URESHINO, Kaoru EGAWA, Akihiro SAKANISHI, Taisuke MIYAZAKI
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Publication number: 20210095381Abstract: A carbon dioxide reduction system includes: an absorption tower configured to bring a source gas containing carbon dioxide into contact with an absorption liquid composed of an aqueous solution containing at least one amine compound so that the carbon dioxide is absorbed in the absorption liquid; an electrolysis apparatus for electrolyzing the carbon dioxide absorbed in the absorption liquid in the absorption tower; and a circulation line for circulating the absorption liquid between the absorption tower and the electrolysis apparatus.Type: ApplicationFiled: February 19, 2020Publication date: April 1, 2021Inventors: Tatsuya TSUJIUCHI, Hidehiko TAJIMA, Takuya HIRATA, Kouji HORIZOE
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Patent number: 8917060Abstract: A secondary cell control system includes a plurality of cells; a charging circuit section and a discharging circuit section. The charging circuit section charges cells selected from among said plurality of cells, and the discharging circuit section discharges cells selected from among said plurality of cells.Type: GrantFiled: June 30, 2009Date of Patent: December 23, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Kyushu Electric Power Co., Inc.Inventors: Tetsuro Shigemizu, Takehiko Nishida, Katsuo Hashizaki, Hidehiko Tajima, Katsuaki Kobayashi, Kazuyuki Adachi, Shinji Murakami, Yoshihiro Wada, Hiroyuki Shibata, Kouji Kurayama
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Patent number: 8901893Abstract: It is an object to effectively output electrical energy of a storage battery to an electrical power system serving as a whole distributed power supply system by effectively utilizing the electrical energy within a charging ratio range that does not cause overcharging or overdischarging of the storage battery. In a hybrid distributed power supply system, the target supply electrical power is set based on the electrical power generation output of the electrical power generator and the charging state of the storage battery, and the target supply electrical power is restricted within a predetermined permissible supply electrical power range when the target supply electrical power deviates from the predetermined permissible supply electrical power range.Type: GrantFiled: December 18, 2007Date of Patent: December 2, 2014Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Tetsuro Shigemizu, Takehiko Nishida, Katsuaki Kobayashi, Hidehiko Tajima
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Patent number: 8729861Abstract: It is an object to provide a battery system whose life can be extended. A cell pack having at least one lithium secondary battery that uses a manganese-based cathode material and a control unit that controls charging and discharging of the cell pack are provided, and the control unit controls charging and discharging within a low-degradation voltage range that is set on the basis of a target cell degradation rate.Type: GrantFiled: March 31, 2008Date of Patent: May 20, 2014Assignees: Mitsubishi Heavy Industries, Ltd., Kyushu Electric Power Co., Inc.Inventors: Takehiko Nishida, Katsuaki Kobayashi, Tomoh Akiyama, Katsuo Hashizaki, Hidehiko Tajima, Kazuyuki Adachi, Shinji Murakami, Yoshihiro Wada, Hiroyuki Shibata, Kouji Kurayama
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Patent number: 8463564Abstract: An abnormality prediction system for secondary batteries according to the present invention includes: a parameter value detection portion that detects parameter values each corresponding to each of a plurality of secondary batteries to determine whether all the parameter values are normal or not; and a singular state determination portion that determines, if a difference between a reference value calculated by use of all the parameter values determined to be normal by the parameter value detection portion and at least one of the parameter values is not less than a threshold value, the secondary battery corresponding to the parameter value with the difference not less than the threshold value to be in a state different from those of the other secondary batteries out of the plurality of secondary batteries.Type: GrantFiled: September 28, 2010Date of Patent: June 11, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Hitoshi Matsumura, Masazumi Ohishi, Masataka Uchida, Katsuaki Kobayashi, Tetsuro Shigemizu, Hidehiko Tajima
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Publication number: 20120295158Abstract: Disclosed is a battery cell in which a first angle that is the angle between a collector (313) and an inclined face (316) that ranges from an end portion of the collector (313) to a surface (311) of a first electrode active material (314) is larger than a second angle that is the angle between the collector (313) and an inclined face (317) that ranges from the end portion of the collector (313) to a surface (312) of a second electrode active material (315).Type: ApplicationFiled: March 18, 2011Publication date: November 22, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Atsushi Tanaka, Hiroaki Yotsumoto, Hidehiko Tajima
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Patent number: 8217624Abstract: An object is to improve safety. Provided is a power storage system including a battery apparatus 1; a power converter 2 provided between the battery apparatus 1 and a load 3 and that can control power supplied from the battery apparatus 1 to the load 3; and a battery monitoring circuit 4 that detects an abnormality in the battery apparatus 1. When an abnormality in the battery apparatus 1 is detected by the battery monitoring circuit 4, the power converter 2 supplies power stored in the battery apparatus 1 to the load 3 or to an internally provided internal load at or below a current value or power value that is set in advance, or alternatively, at a current value or power value that the load 3 demands, within a range that does not exceed an upper limit that is set in advance.Type: GrantFiled: March 14, 2008Date of Patent: July 10, 2012Assignees: Mitsubishi Industries, Ltd., Kyushu Electric Power Co., Inc.Inventors: Takehiko Nishida, Katsuaki Kobayashi, Katsuo Hashizaki, Hidehiko Tajima, Kazuyuki Adachi
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Publication number: 20110221394Abstract: A secondary cell control system includes a plurality of cells; a charging circuit section and a discharging circuit section. The charging circuit section charges cells selected from among said plurality of cells, and the discharging circuit section discharges cells selected from among said plurality of cells.Type: ApplicationFiled: June 30, 2009Publication date: September 15, 2011Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., KYUSHU ELECTRIC POWER CO., INC.Inventors: Tetsuro Shigemizu, Takehiko Nishida, Katsuo Hashizaki, Hidehiko Tajima, Katsuaki Kobayashi, Kazuyuki Adachi, Shinji Murakami, Yoshihiro Wada, Hiroyuki Shibata, Kouji Kurayama
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Publication number: 20110077881Abstract: An abnormality prediction system for secondary batteries according to the present invention includes: a parameter value detection portion that detects parameter values each corresponding to each of a plurality of secondary batteries to determine whether all the parameter values are normal or not; and a singular state determination portion that determines, if a difference between a reference value calculated by use of all the parameter values determined to be normal by the parameter value detection portion and at least one of the parameter values is not less than a threshold value, the secondary battery corresponding to the parameter value with the difference not less than the threshold value to be in a state different from those of the other secondary batteries out of the plurality of secondary batteries.Type: ApplicationFiled: September 28, 2010Publication date: March 31, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Hitoshi Matsumura, Masazumi Ohishi, Masataka Uchida, Katsuaki Kobayashi, Tetsuro Shigemizu, Hidehiko Tajima
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Publication number: 20100207580Abstract: It is an object to provide a battery system whose life can be extended. A cell pack having at least one lithium secondary battery that uses a manganese-based cathode material and a control unit that controls charging and discharging of the cell pack are provided, and the control unit controls charging and discharging within a low-degradation voltage range that is set on the basis of a target cell degradation rate.Type: ApplicationFiled: March 31, 2008Publication date: August 19, 2010Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., KYUSHU ELECTRIC POWER CO., INC.Inventors: Takehiko Nishida, Katsuaki Kobayashi, Tomoh Akiyama, Katsuo Hashizaki, Hidehiko Tajima, Kazuyuki Adachi, Shinji Murakami, Yoshihiro Wada, Hiroyuki Shibata, Kouji Kurayama
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Publication number: 20100176765Abstract: It is an object to effectively output electrical energy of a storage battery to an electrical power system serving as a whole distributed power supply system by effectively utilizing the electrical energy within a charging ratio range that does not cause overcharging or overdischarging of the storage battery. In a hybrid distributed power supply system, the target supply electrical power is set based on the electrical power generation output of the electrical power generator and the charging state of the storage battery, and the target supply electrical power is restricted within a predetermined permissible supply electrical power range when the target supply electrical power deviates from the predetermined permissible supply electrical power range.Type: ApplicationFiled: December 18, 2007Publication date: July 15, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tetsuro Shigemizu, Takehiko Nishida, Katsuaki Kobayashi, Hidehiko Tajima
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Publication number: 20100159315Abstract: Provided is a lithium secondary battery that is capable of preventing thermal runaway inside the battery due to a short circuit. Included are cathodes (3) having cathode active material that stores and discharges lithium ions, anodes (4) that store and discharge lithium ions, and a dummy laminated body (9) in which dummy cathodes (6) connected to a cathode terminal and dummy anodes (7) connected to an anode terminal are alternately laminated and that has short circuit separators (8) for insulating the dummy cathodes (6) and the dummy anodes (7); and the dummy laminated body (9) is laminated on the outside of the alternately laminated cathodes (3) and anodes (4).Type: ApplicationFiled: June 27, 2008Publication date: June 24, 2010Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., KYUSHU ELECTRIC POWER CO., INC.Inventors: Koji Imasaka, Hidehiko Tajima, Kazuyuki Adachi, Yoshihiro Wada, Yoshinori Matsunaga
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Publication number: 20100033135Abstract: An object is to improve safety. Provided is a power storage system including a battery apparatus 1; a power converter 2 provided between the battery apparatus 1 and a load 3 and that can control power supplied from the battery apparatus 1 to the load 3; and a battery monitoring circuit 4 that detects an abnormality in the battery apparatus 1. When an abnormality in the battery apparatus 1 is detected by the battery monitoring circuit 4, the power converter 2 supplies power stored in the battery apparatus 1 to the load 3 or to an internally provided internal load at or below a current value or power value that is set in advance, or alternatively, at a current value or power value that the load 3 demands, within a range that does not exceed an upper limit that is set in advance.Type: ApplicationFiled: March 14, 2009Publication date: February 11, 2010Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., KYUSHU ELECTRIC POWER CO., INC.Inventors: Takehiko Nishida, Katsuaki Kobayashi, Katsuo Hashizaki, Hidehiko Tajima, Kazuyuki Adachi