Patents by Inventor Masatoshi Katsuki
Masatoshi Katsuki 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: 20170312689Abstract: An exhaust gas treatment device capable of treating exhaust gas of a gas turbine or a gas engine includes an exhaust gas treatment catalyst comprising a perovskite composite oxide containing at least Ag and Dy in an A site and at least Mn in a B site.Type: ApplicationFiled: September 16, 2015Publication date: November 2, 2017Inventors: Masatoshi KATSUKI, Shuuji FUJII, Kazuki NISHIZAWA
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Publication number: 20160375404Abstract: Provided is an exhaust gas treatment system comprising a catalyst for removing nitrogen oxides by subjecting nitrogen oxides contained in an exhaust gas to catalytic reduction treatment in the presence of ammonia, the catalyst containing titanium oxide, tungsten oxide, vanadium oxide, and at least one oxide selected from chromium oxide and manganese oxide, wherein the catalyst for removing nitrogen oxides is disposed for removing nitrogen oxides and VOC.Type: ApplicationFiled: April 10, 2014Publication date: December 29, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tomotsugu Masuda, Koji Higashino, Masatoshi Katsuki
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Publication number: 20160303549Abstract: An exhaust gas treatment catalyst comprises titanium oxide, tungsten oxide, vanadium oxide, and copper oxide and/or Cu/zeolite-coated catalyst, wherein the catalyst is provided with a nitrogen oxide removing capability in which nitrogen oxides contained in an exhaust gas are subjected to catalytic reduction in the presence of ammonia, and with CO and VOC removing capability.Type: ApplicationFiled: April 10, 2014Publication date: October 20, 2016Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Tomotsugu Masuda, Koji Higashino, Masatoshi Katsuki
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Patent number: 9308498Abstract: An exhaust gas treating catalyst further improved in denitrification performance is provided. It is an exhaust gas treating catalyst containing a complex oxide represented by the general formula ABO3, where the A-site is composed of a lanthanoid (La) and barium (Ba), and the B-site is composed of iron (Fe), niobium (Nb) and palladium (Pd).Type: GrantFiled: September 17, 2015Date of Patent: April 12, 2016Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masatoshi Katsuki, Shuuji Fujii, Atsushi Ueda, Yusuke Yamada
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Publication number: 20160001230Abstract: An exhaust gas treating catalyst further improved in denitrification performance is provided. It is an exhaust gas treating catalyst containing a complex oxide represented by the general formula ABO3, where the A-site is composed of a lanthanoid (La) and barium (Ba), and the B-site is composed of iron (Fe), niobium (Nb) and palladium (Pd).Type: ApplicationFiled: September 17, 2015Publication date: January 7, 2016Applicants: MITSUBISHI HEAVY INDUSTRIES, LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Masatoshi KATSUKI, Shuuji FUJII, Atsushi UEDA, Yusuke YAMADA
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Publication number: 20150375168Abstract: An exhaust gas treatment system provided with an exhaust gas treatment device, the exhaust gas treatment system having: a reaction unit for causing a gas purification agent and an acidic gas to react, the reaction unit being provided with a gas purification agent addition means for adding a gas purification agent to an exhaust gas containing the acidic gas and having a temperature of at least 190° C.; and a removal unit provided with a bag filter for removing the reaction product obtained by the reaction unit from the exhaust gas; the gas purification agent containing slaked lime having a specific surface area as measured by the BET method of at least of 25 m2/g and a pore volume as measured by the nitrogen desorption BJH method of at least 0.15 cm3/g. In this exhaust gas treatment system, an exhaust gas purification catalyst may be supported on the bag filter.Type: ApplicationFiled: February 7, 2014Publication date: December 31, 2015Inventors: Takumi SUZUKI, Masatoshi KATSUKI, Tetsuya SAKUMA, Keita INOUE, Naohiro YAMADA, Taiji UCHIDA
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Patent number: 9174170Abstract: An exhaust gas treating catalyst further improved in denitrification performance is provided. It is an exhaust gas treating catalyst containing a complex oxide represented by the general formula ABO3, where the A-site is composed of a lanthanoid (La) and barium (Ba), and the B-site is composed of iron (Fe), niobium (Nb) and palladium (Pd).Type: GrantFiled: April 28, 2009Date of Patent: November 3, 2015Assignees: MITSUBISHI HEAVY INDUSTRIES, LTD., NATIONAL INSTITUTE OF ADVANCED INDUSTRIAL SCIENCE AND TECHNOLOGYInventors: Masatoshi Katsuki, Shuuji Fujii, Atsushi Ueda, Yusuke Yamada
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Patent number: 9051863Abstract: An object of the present invention is to provide a flue gas purifying device that can efficiently decrease nitrogen oxides in flue gas.Type: GrantFiled: January 27, 2010Date of Patent: June 9, 2015Assignee: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Yuuko Ujihara, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki, Kageharu Moriyama
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Patent number: 8607547Abstract: An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by a flue gas purifying device including: an exhaust pipe; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalytic unit that includes a urea SCR catalyst that promotes a reaction between ammonia and nitrogen oxides and a support mechanism that supports the urea SCR catalyst in the exhaust pipe, and is arranged on a downstream side to a position where urea water is injected; a concentration measuring unit arranged on a downstream side to the catalytic unit in a flow direction of flue gas to measure an ammonia concentration in flue gas having passed through the urea SCR catalyst; and a control unit that controls injection of urea water by the urea-water injecting unit based on an ammonia concentration measured by the concentration measuring unit.Type: GrantFiled: December 4, 2009Date of Patent: December 17, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Yuuko Ujihara, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki
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Patent number: 8468807Abstract: An exhaust gas purification system which, in a wider temperature range, can reduce and remove nitrogen oxides in an exhaust gas by a reduction catalyst with the use of hydrogen as a reducing agent is provided. The exhaust gas purification system has an electronic control device (41) which controls an EGR valve (4) and an EGR pipe (5) so that the concentration of oxygen in the exhaust gas obtained from a data map based on the state of an engine (10) becomes less than a predetermined value, and which controls a microreactor (19) so that hydrogen is added to the exhaust gas when the concentration of oxygen in the exhaust gas is less than the predetermined value.Type: GrantFiled: September 3, 2008Date of Patent: June 25, 2013Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Masatoshi Katsuki, Masazumi Tanoura, Shuuji Fujii, Daishi Ueno, Yuko Ujihara
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Patent number: 8281577Abstract: An exhaust gas purification system, which upgrades exhaust gas purification while curtailing an increase in an operating cost, is disclosed. The exhaust gas purification system comprises an SCR catalyst for reducing and removing nitrogen oxides in an exhaust gas from an engine (10) by bringing the nitrogen oxides into contact with a reducing agent, oxidation catalysts (11, 17) for oxidizing gas components in the exhaust gas, a water electrolysis device (24) for producing oxygen by electrolyzing water, and an oxygen supply pipe (29) for supplying the oxygen produced by the water electrolysis device (24) to the exhaust gas.Type: GrantFiled: September 3, 2008Date of Patent: October 9, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Masazumi Tanoura, Shuuji Fujii, Masatoshi Katsuki, Daishi Ueno, Yuko Ujihara
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Patent number: 8237926Abstract: A method and apparatus for measuring density which can simultaneously measure gaseous substance density and solid particulate material density and further can simultaneously measure the densities of a plurality of materials such as black smoke, white smoke, and water vapor. The method includes irradiating a laser having at least one wavelength equivalent to an absorption wavelength of each gaseous substance to be measured.Type: GrantFiled: April 15, 2009Date of Patent: August 7, 2012Assignee: Mitsubishi Heavy Industries, Ltd.Inventors: Minoru Danno, Kenji Muta, Masazumi Tanoura, Masatoshi Katsuki, Yuuko Ujihara
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Publication number: 20120047879Abstract: A flue gas purifying device includes an exhaust pipe that guides flue gas discharged from an internal combustion engine; a catalytic unit that is arranged on a downstream side to the internal combustion engine in a flow direction of flue gas and includes a nitrogen-oxide storage-reduction catalyst that stores nitrogen oxides contained in flue gas and a support mechanism that is arranged in the exhaust pipe and supports the nitrogen-oxide storage-reduction catalyst in the exhaust pipe; a reducing-agent injecting unit that injects a reducing agent to the catalytic unit in the exhaust pipe; a concentration measuring unit that is arranged on a downstream side to the catalytic unit in the flow direction of flue gas and measures a concentration of nitrogen oxides in flue gas having passed through the nitrogen-oxide storage-reduction catalyst; and a control unit that controls whether to inject the reducing agent from the reducing-agent injecting unit based on a concentration of nitrogen oxides measured by the concenType: ApplicationFiled: January 27, 2010Publication date: March 1, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Yuuko Ujihara, Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki
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Publication number: 20120014841Abstract: An exhaust gas treating catalyst further improved in denitrification performance is provided. It is an exhaust gas treating catalyst containing a complex oxide represented by the general formula ABO3, where the A-site is composed of a lanthanoid (La) and barium (Ba), and the B-site is composed of iron (Fe), niobium (Nb) and palladium (Pd).Type: ApplicationFiled: April 28, 2009Publication date: January 19, 2012Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masatoshi Katsuki, Shuuji Fujii, Atsushi Ueda, Yusuke Yamada
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Publication number: 20110293483Abstract: An object of the present invention is to provide a flue gas purifying device that can efficiently decrease nitrogen oxides in flue gas.Type: ApplicationFiled: January 27, 2010Publication date: December 1, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Yuuko Ujihara, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki, Kageharu Moriyama
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Publication number: 20110239629Abstract: An object of the present invention is to provide a flue gas purifying device that can suppress leakage of ammonia and can efficiently decrease nitrogen oxides in flue gas. The object is achieved by a flue gas purifying device including: an exhaust pipe; a urea-water injecting unit that injects urea water into the exhaust pipe; a catalytic unit that includes a urea SCR catalyst that promotes a reaction between ammonia and nitrogen oxides and a support mechanism that supports the urea SCR catalyst in the exhaust pipe, and is arranged on a downstream side to a position where urea water is injected; a concentration measuring unit arranged on a downstream side to the catalytic unit in a flow direction of flue gas to measure an ammonia concentration in flue gas having passed through the urea SCR catalyst; and a control unit that controls injection of urea water by the urea-water injecting unit based on an ammonia concentration measured by the concentration measuring unit.Type: ApplicationFiled: December 4, 2009Publication date: October 6, 2011Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masazumi Tanoura, Kenji Muta, Minoru Danno, Masatoshi Katsuki, Yuuko Ujihara, Daishi Ueno, Takashi Fujinaga, Eiji Kato, Shinichiro Asami, Tadashi Aoki
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Publication number: 20110019193Abstract: Disclosed are method and apparatus for measuring density, that can simultaneously measure gaseous substance density and solid particulate material density and further can simultaneously measure the densities of a plurality of materials such as black smoke, white smoke, and water vapor in the solid particulate material in a simple and reliable manner. The method for measuring density comprises applying a laser beam having an absorption wavelength inherent in a gaseous material contained in an object to be measured, to the object to detect a light transmittance and a light absorption amount and detecting the density of gaseous materials in the object and the density of solid particulate materials in the object. The relationship between the density of a plurality of kinds of solid particulate materials including black smoke and white smoke and a laser beam attenuation level in each absorption wavelength is preset.Type: ApplicationFiled: April 15, 2009Publication date: January 27, 2011Inventors: Minoru Danno, Kenji Muta, Masazumi Tanoura, Masatoshi Katsuki, Yuuko Ujihara
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Publication number: 20100287911Abstract: An exhaust gas purification system which, in a wider temperature range, can reduce and remove nitrogen oxides in an exhaust gas by a reduction catalyst with the use of hydrogen as a reducing agent is provided. The exhaust gas purification system has an electronic control device (41) which controls an EGR valve (4) and an EGR pipe (5) so that the concentration of oxygen in the exhaust gas obtained from a data map based on the state of an engine (10) becomes less than a predetermined value, and which controls a microreactor (19) so that hydrogen is added to the exhaust gas when the concentration of oxygen in the exhaust gas is less than the predetermined value.Type: ApplicationFiled: September 3, 2008Publication date: November 18, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masatoshi Katsuki, Masazumi Tanoura, Shuuji Fujii, Daishi Ueno, Yuko Ujihara
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Publication number: 20100242864Abstract: An exhaust gas purification system, which upgrades exhaust gas purification while curtailing an increase in an operating cost, is disclosed. The exhaust gas purification system comprises an SCR catalyst for reducing and removing nitrogen oxides in an exhaust gas from an engine (10) by bringing the nitrogen oxides into contact with a reducing agent, oxidation catalysts (11, 17) for oxidizing gas components in the exhaust gas, a water electrolysis device (24) for producing oxygen by electrolyzing water, and an oxygen supply pipe (29) for supplying the oxygen produced by the water electrolysis device (24) to the exhaust gas.Type: ApplicationFiled: September 3, 2008Publication date: September 30, 2010Applicant: MITSUBISHI HEAVY INDUSTRIES, LTD.Inventors: Masazumi Tanoura, Shuuji Fujii, Masatoshi Katsuki, Daishi Ueno, Yuko Ujihara