Patents by Inventor Noboru Wada
Noboru Wada 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: 20220271297Abstract: Provided is a fuel cell catalyst composition comprising a C12A7:X? inorganic material having a structure in which oxygen anions of C12A7 are replaced by halogen (X) anions, or comprising a C12A7:X?-based inorganic material which is a C12A7:X? partially converted to electride. A fuel cell comprising the fuel cell catalyst composition in a catalyst layer is also provided. Also provided is a method of producing a fuel cell catalyst composition, comprising a step of heat-treating C12A7:X? at temperature of 1000-1300° C. for at least 20 hours under a nitrogen atmosphere.Type: ApplicationFiled: July 1, 2020Publication date: August 25, 2022Applicant: TOYO UNIVERSITYInventor: Noboru WADA
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Patent number: 11278877Abstract: In a photocatalyst and a photocatalyst carrier, tungsten oxide microcrystals that have a crystal grain size of 10 nm or less and oxidizes a gaseous chemical substance and titanium oxide microcrystals that have a crystal grain size of 10 nm or less and oxidizes the gaseous chemical substance are irregularly arranged to form a solid.Type: GrantFiled: May 28, 2018Date of Patent: March 22, 2022Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Noriaki Katsumata, Yoko Matsuura, Noboru Wada, Ryu Abe, Osamu Tomita, Masaya Shigemitsu
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Publication number: 20200222888Abstract: In a photocatalyst and a photocatalyst carrier, tungsten oxide microcrystals that have a crystal grain size of 10 nm or less and oxidizes a gaseous chemical substance and titanium oxide microcrystals that have a crystal grain size of 10 nm or less and oxidizes the gaseous chemical substance are irregularly arranged to form a solid.Type: ApplicationFiled: May 28, 2018Publication date: July 16, 2020Applicant: Mitsubishi Electric CorporationInventors: Noriaki KATSUMATA, Yoko MATSUURA, Noboru WADA, Ryu ABE, Osamu TOMITA, Masaya SHIGEMITSU
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Patent number: 10544045Abstract: In an ozone generating system in which an intermittent operation is performed, in which an ozone generating operation period in which ozone is generated by discharging gas which contains oxygen in a discharge space of an ozone generating apparatus and an ozone generating operation standby period in which gas is sealed in an ozone generating apparatus and discharge is stopped so as not to generate ozone are performed repeatedly, an absorbent which absorbs at least one of nitric acid and nitrogen oxide is provided in an ozone generating apparatus other than the discharge space.Type: GrantFiled: July 28, 2015Date of Patent: January 28, 2020Assignee: Mitsubishi Electric CorporationInventors: Noboru Wada, Yusuke Nakagawa
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Patent number: 10436127Abstract: A change amount per unit time of an engine output command for controlling engine output of an internal combustion engine is calculated as an engine output increasing rate, and a power supply device is controlled so that power corresponding to the calculated engine output increasing rate is supplied to a combustion promoter generation device. The combustion promoter generation device generates a combustion promoter through the power supplied from the power supply device to supply the combustion promoter to a combustion chamber of the internal combustion engine, and a generation amount of the combustion promoter increases as the supplied power increases. In this manner, the generation amount of the combustion promoter is adjusted.Type: GrantFiled: December 3, 2015Date of Patent: October 8, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro Inoue, Taichiro Tamida, Takashi Hashimoto, Noboru Wada, Akira Nakagawa, Tomokazu Sakashita, Tetsuya Honda
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Patent number: 10302046Abstract: An ozone generator and an internal combustion engine with the ozone generator that can raise ozone additive rate of whole intake air, while suppressing pressure loss in the intake pipe from increasing. The internal combustion engine with an ozone generator includes a tubular intake pipe, through an inner region of which air flows, an ozone generator having an electrode plate that makes ozone and is disposed in the inner region or in the intake pipe, and a limiter that limits the flow of air in the inner region of the intake pipe; the electrode plate has a planar dielectric and high-voltage-side and low-voltage-side electrodes adhered and fixed to the dielectric and is formed in a shape of a plate extending in a direction in which air flows.Type: GrantFiled: August 31, 2016Date of Patent: May 28, 2019Assignee: Mitsubishi Electric CorporationInventors: Noboru Wada, Takahiro Inoue, Taichiro Tamida, Yasutaka Inanaga, Takashi Hashimoto, Koji Wada, Tetsuya Honda
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Publication number: 20190092637Abstract: This ozone supply device includes an ozone generator, an adsorption tower, a standby unit, a pressure reducing device, an ozone supply unit, a low-temperature coolant circulator, and a control unit which causes a generated ozonized gas to be adsorbed to a cooled adsorbent and desorbs the ozonized gas adsorbed to the adsorbent, thereby concentrating the ozonized gas, wherein the control unit performs control so that the pressure in the adsorption tower in a standby state where the ozonized gas desorbed from the adsorbent in the adsorption tower is caused to stand by in the standby unit becomes lower than the pressure in the adsorption tower in the adsorption.Type: ApplicationFiled: November 14, 2016Publication date: March 28, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Yusuke NAKAGAWA, Yoko MATSUURA, Noboru WADA, Yasuhiro NAKAMURA
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Publication number: 20190078520Abstract: A change amount per unit time of an engine output command for controlling engine output of an internal combustion engine is calculated as an engine output increasing rate, and a power supply device is controlled so that power corresponding to the calculated engine output increasing rate is supplied to a combustion promoter generation device. The combustion promoter generation device generates a combustion promoter through the power supplied from the power supply device to supply the combustion promoter to a combustion chamber of the internal combustion engine, and a generation amount of the combustion promoter increases as the supplied power increases. In this manner, the generation amount of the combustion promoter is adjusted.Type: ApplicationFiled: December 3, 2015Publication date: March 14, 2019Applicant: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahiro INOUE, Taichiro TAMIDA, Takashi HASHIMOTO, Noboru WADA, Akira NAKAGAWA, Tomokazu SAKASHITA, Tetsuya HONDA
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Patent number: 10221068Abstract: In an ozone generating system which performs intermittent operation, that is, an operation in an ozone generating operation period in which ozone is generated by discharging gas including oxygen at a discharge electrode part and an operation in an ozone generating operation standby period in which ozone is not generated by stopping discharge are alternately repeated, a gas circulating device which circulates gas in the ozone generating apparatus and removes at least nitric acid from the gas which is circulated is connected to the ozone generating apparatus.Type: GrantFiled: April 15, 2015Date of Patent: March 5, 2019Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Noboru Wada, Yasutaka Inanaga
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Publication number: 20180283323Abstract: An ozone generator and an internal combustion engine with the ozone generator that can raise ozone additive rate of whole intake air, while suppressing pressure loss in the intake pipe from increasing. The internal combustion engine with an ozone generator includes a tubular intake pipe, through an inner region of which air flows, an ozone generator having an electrode plate that makes ozone and is disposed in the inner region or in the intake pipe, and a limiter that limits the flow of air in the inner region of the intake pipe; the electrode plate has a planar dielectric and high-voltage-side and low-voltage-side electrodes adhered and fixed to the dielectric and is formed in a shape of a plate extending in a direction in which air flows.Type: ApplicationFiled: August 31, 2016Publication date: October 4, 2018Applicant: Mitsubishi Electric CorporationInventors: Noboru WADA, Takahiro INOUE, Taichiro TAMIDA, Yasutaka INANAGA, Takashi HASHIMOTO, Koji WADA, Tetsuya HONDA
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Publication number: 20180105443Abstract: A water treatment system includes: an aeration tank for converting wastewater containing organic substances into sludge-laden treated water by aerobic treatment; an ozone supply unit for feeding ozone into the sludge-laden treated water drawn out from the aeration tank; and a bubble detector for detecting the condition of bubbles produced by reaction between the fed ozone and the sludge. The ozone treatment is controlled by utilizing as an indicator for sludge volume reduction effect the increase rate of bubbles detected by the bubble detector, so that the water treatment system is able to vary the amount of ozone feed depending on the conditions of water treatment.Type: ApplicationFiled: May 27, 2015Publication date: April 19, 2018Applicant: Mitsubishi Electric CorporationInventors: Noboru WADA, Kyohei AKETAGAWA, Eiji IMAMURA, Yusuke NAKAGAWA, Hiroshi KUROKI, Yasutaka INANAGA
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Patent number: 9932232Abstract: In an ozone generating device including a discharge unit for discharging a material gas that flows through a discharge space formed between two electrodes to generate ozone and a cooling unit for radiating heat which is generated by the discharging, wherein the material gas is obtained by vaporizing a liquefied raw material, the cooling unit includes a first cooling unit through which a first refrigerant flows in contact with one of the two electrodes and a second cooling unit which is provided further to the downstream side of flow of the material gas in the discharge unit than the first cooling unit, and in which the cold heat source is the liquefied raw material and the temperature of the second refrigerant introduced to the second cooling unit is set to be lower than the temperature of the first refrigerant introduced to the first cooling unit.Type: GrantFiled: February 4, 2016Date of Patent: April 3, 2018Assignee: Mitsubishi Electric CorporationInventors: Yusuke Nakagawa, Noboru Wada, Takahisa Nagayama, Yasutaka Inanaga, Gaku Oinuma, Mamiko Yoshida
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Publication number: 20180002176Abstract: In an ozone generating device including a discharge unit for discharging a material gas that flows through a discharge space formed between two electrodes to generate ozone and a cooling unit for radiating heat which is generated by the discharging, wherein the material gas is obtained by vaporizing a liquefied raw material, the cooling unit includes a first cooling unit through which a first refrigerant flows in contact with one of the two electrodes and a second cooling unit which is provided further to the downstream side of flow of the material gas in the discharge unit than the first cooling unit, and in which the cold heat source is the liquefied raw material and the temperature of the second refrigerant introduced to the second cooling unit is set to be lower than the temperature of the first refrigerant introduced to the first cooling unit.Type: ApplicationFiled: February 4, 2016Publication date: January 4, 2018Applicant: Mitsubishi Electric CorporationInventors: Yusuke NAKAGAWA, Noboru WADA, Takahisa NAGAYAMA, Yasutaka INANAGA, Gaku OINUMA, Mamiko YOSHIDA
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Publication number: 20170275165Abstract: In an ozone generating system in which an intermittent operation is performed, in which an ozone generating operation period in which ozone is generated by discharging gas which contains oxygen in a discharge space of an ozone generating apparatus and an ozone generating operation standby period in which gas is sealed in an ozone generating apparatus and discharge is stopped so as not to generate ozone are performed repeatedly, an absorbent which absorbs at least one of nitric acid and nitrogen oxide is provided in an ozone generating apparatus other than the discharge space.Type: ApplicationFiled: July 28, 2015Publication date: September 28, 2017Applicant: Mitsubishi Electric CorporationInventors: Noboru WADA, Yusuke NAKAGAWA
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Publication number: 20170183229Abstract: In an ozone generating system which performs intermittent operation, that is, an operation in an ozone generating operation period in which ozone is generated by discharging gas including oxygen at a discharge electrode part and an operation in an ozone generating operation standby period in which ozone is not generated by stopping discharge are alternately repeated, a gas circulating device which circulates gas in the ozone generating apparatus and removes at least nitric acid from the gas which is circulated is connected to the ozone generating apparatus.Type: ApplicationFiled: April 15, 2015Publication date: June 29, 2017Applicant: Mitsubishi Electic CoporationInventors: Noboru WADA, Yasutaka INANAGA
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Patent number: 9371229Abstract: A system including: an ozone generating device including discharge electrodes forming a discharge space; a gas supplying device; a power source device that supplies power to the discharge electrodes; a temperature adjustment device that adjusts temperature of the discharge electrodes; a control unit that controls the ozone generating device; and a detection unit that detects an ozone generation parameter in the ozone generating device. The control unit increases temperature of the discharge electrodes up to a vaporizing temperature of dinitrogen pentoxide by controlling the temperature adjustment device and the gas supplying device or the temperature adjustment device and the power source device, based on the output ozone generation parameter, to thereby switch operation from a normal operation mode to a cleaning operation mode in which surfaces of the discharge electrodes and the discharge space are cleaned up while continuing generation of ozone in the discharge space.Type: GrantFiled: February 12, 2013Date of Patent: June 21, 2016Assignee: Mitsubishi Electric CorporationInventors: Noboru Wada, Norimitsu Esaki, Hajime Nakatani, Yasutaka Inanaga, Yoshiaki Odai
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Patent number: 9238213Abstract: An ozone generating apparatus which is provided with a discharge suppressing member formed of a metal plate and covering an outer circumferential surface of a portion of a dielectric tube facing to a tube sheet, the discharge suppressing member being electrically in contact with a metal tube or the tube sheet, wherein the discharge suppressing member is formed by curling the metal plate longer than a circumferential length of the dielectric tube into a circular shape so as to have an overlapping portion, and by joining together, in the overlapping portion, a part of the metal plate placed outside and a part of the metal plate placed inside, at a near-end portion of the metal plate placed outside in the overlapping portion, and wherein the discharge suppressing member has, on the part of the metal plate placed outside in the overlapping portion, a spring portion.Type: GrantFiled: April 23, 2012Date of Patent: January 19, 2016Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Takahisa Nagayama, Hajime Nakatani, Yoshiaki Odai, Noboru Wada
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Patent number: 9093879Abstract: The present invention provides a method for reducing concentrations of ozone and nitric acid produced in cooling air flowing through a circulating airflow path of a rotary electric machine, the method including: disposing an ozone decomposition unit containing an ozone decomposition catalyst in the circulating airflow path; and allowing the cooling air to pass through the ozone decomposition unit so as to decompose ozone and to suppress production of nitric acid. According to the present invention, the method and device are capable of reducing the concentrations of ozone and nitric acid produced in the cooling air flowing through the circulating airflow path of the rotary electric machine for a long period of time while preventing pressure loss.Type: GrantFiled: June 1, 2011Date of Patent: July 28, 2015Assignee: MITSUBISHI ELECTRIC CORPORATIONInventors: Gaku Oinuma, Noboru Wada, Yasuhiro Tanimura, Takayoshi Shimada, Katsuhiko Kibe
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Patent number: 9046803Abstract: A charging roll includes a cylindrical base member that has a metal-containing surface, a conductive adhesive layer that includes a halogen atom-containing resin and has surface roughness Rz in a range of 0.5 ?m to 8 ?m on an outer peripheral surface side on the base member, and a conductive elastic layer that is disposed to be brought into contact with the outer peripheral surface of the conductive adhesive layer and includes a halogen atom-containing rubber.Type: GrantFiled: February 18, 2014Date of Patent: June 2, 2015Assignee: FUJI XEROX CO., LTD.Inventors: Takuro Hoshio, Taketoshi Hoshizaki, Shoichi Masuda, Eiichi Iida, Takahiko Hattori, Noboru Wada
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Publication number: 20150050052Abstract: A charging roll includes a cylindrical base member that has a metal-containing surface, a conductive adhesive layer that includes a halogen atom-containing resin and has surface roughness Rz in a range of 0.5 ?m to 8 ?m on an outer peripheral surface side on the base member, and a conductive elastic layer that is disposed to be brought into contact with the outer peripheral surface of the conductive adhesive layer and includes a halogen atom-containing rubber.Type: ApplicationFiled: February 18, 2014Publication date: February 19, 2015Applicant: FUJI XEROX CO., LTD.Inventors: Takuro HOSHIO, Taketoshi HOSHIZAKI, Shoichi MASUDA, Eiichi IIDA, Takahiko HATTORI, Noboru WADA