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Tadao Nakatsuji, Hiromitsu Shimizu, Ritsu Yasukawa, Fujio Suganuma, Akihiro Kitazume, Hiroshi Tsuchida, Takehiko Ito, Hideaki Hamada, Katsumi Miyamoto, Masaaki Kawatsuki, Yoshiaki Kintaichi, Motoi Sasaki, Mitsunori Tabata: Catalyst for catalytic reduction of nitrogen oxide. Sakai Chemical, Agency of Industrial Science and Technology, Petroleum Energy Center, Cosmo Oil, Sughrue Mion Zinn Macpeak & Seas, January 10, 1995: US05380692 (69 worldwide citation)

A catalyst for catalytic reduction of nitrogen oxide using at least one reducing agent selected from the group consisting of a hydrocarbon and an oxygen-containing organic compound is described, which includes an oxide represented by formula (V):


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Tadao Nakatsuji, Ritsu Yasukawa, Keiichi Tabata, Kazuyuki Ueda: Catalyst and method for catalytic reduction of nitrogen oxides. Sakai Chemical, Petroleum Energy Center, Wenderoth Lind & Ponack L, April 4, 2000: US06045765 (62 worldwide citation)

The invention provides a catalyst for catalytic reduction of nitrogen oxides which uses a hydrocarbon or an oxygen-containing organic compound as a reducing agent, which comprises silver aluminate supported on a solid acid carrier material. The invention also provides a catalyst which comprises silv ...


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Kazunobu Abe, Tadao Nakatsuji: Method for producing a catalytic structure for the reduction of nitrogen oxides. Sakai Chemical, Wenderoth Lind & Ponack, May 28, 1985: US04520124 (39 worldwide citation)

A method is provided for producing a catalytic structure in the form of sheet or honeycomb for the gas phase reduction of nitrogen oxides. The method comprises: beating an inorganic fiber in water to form a slurry; forming the slurry into a sheet by paper-making means and drying the sheet; impregnat ...


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Kazunobu Abe, Tadao Nakatsuji: Method for producing a catalyst and a carrier therefor. Sakai Chemical, Wenderoth Lind & Ponack, July 28, 1981: US04280926 (38 worldwide citation)

A method is provided for producing a catalyst and a carrier therefor in the form of sheet or honeycomb. The method comprises: beating a heat-resistant fiber such as asbesto fiber in water to form a slurry; mixing the slurry with a catalytically active agent, a carrier material therefor and/or their ...


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Kazunobu Abe, Shoichi Tamura, Tadao Nakatsuji: Method for preventing the wear of a monolithic catalyst by dusts. Sakai Chemical, Wenderoth Lind & Ponack, October 13, 1981: US04294806 (30 worldwide citation)

In a method for treating a gas containing dusts therein under a monolithic catalyst consisting of a ceramic support which is substantially porous throughout the structure, and has active ingredients uniformly dispersed therein and passages therethrough parallel to the flow of the gas for allowing th ...


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Tadao Nakatsuji, Hiromitsu Shimizu, Ritsu Yasukawa, Katsumi Miyamoto, Hiroshi Tsuchida: Catalyst for catalytic reduction of nitrogen oxides. Sakai Chemical, Petroleum Energy Center, Cosmo Oil, Sughrue Mion Zinn Macpeak & Seas PLLC, March 31, 1998: US05733837 (28 worldwide citation)

A catalyst for catalytic reduction of nitrogen oxides using a hydrocarbon and/or a oxygen-containing organic compound as a reducing agent is disclosed, which comprises a cerium oxide supported on a solid acid carrier.


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Yoshiaki Kintaichi, Hideaki Hamada, Takehiko Ito, Motoi Sasaki, Fujio Suganuma, Mitsunori Tabata, Akihiro Kitazume, Kazushi Usui, Tadao Nakatsuji, Hiromitsu Shimizu: Process for removing nitrogen oxides from exhaust gases. Agency of Industrial Science and Technology, Petroleum Energy Center, Cosmo Oil, Sakai Chemical, Sughrue Mion Zinn Macpeak & Seas, July 13, 1993: US05227145 (19 worldwide citation)

A process for removing nitrogen oxides from an exhaust gas by bringing the exhaust gas containing nitrogen oxides into contact with at least one catalyst selected from a polyvalent metal phosphate, a polyvalent metal sulfate or an aluminate of a transition metal of the 4th period of the Periodic Tab ...


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Masafumi Yoshimoto, Tadao Nakatsuji, Kazuhiko Nagano, Kimihiko Yoshida: Catalyst for decomposing ozone. Sakai Chemical Industry Co, Nikaido Marmelstein Murray & Oram, May 18, 1993: US05212140 (17 worldwide citation)

A catalyst for decomposing ozone comprising a carrier and a catalytic active substance having ozone resolvability carried thereon in a thickness of 10 to 200 .mu.m. Consequently, ozone can efficiently be removed. The invention also includes the catalytic active substance or ozone adsorption substanc ...