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Yoshihiro Suzuki, Hiroo Kinoshita, Naomi Akasaka: Catalyst for purifying exhaust gas and the process for manufacturing thereof. Toyota Jidosha Kogyo Kabushiki Kaisha, Oblon Fisher Spivak McClelland & Maier, June 23, 1981: US04274981 (74 worldwide citation)

A catalyst for purifying exhaust gas composed of a catalyst carrier coated with a metal oxide material containing a spinel metal oxide of the formula: MAl.sub.2 O.sub.4 wherein M is Sr, Mg, Cu, Mn, Mo, Zn, Fe, Co or Ni the metal oxide coated carrier further being coated with rhodium and platinum and ...


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Takahiro Kurokawa, Akihide Takami, Hideharu Iwakuni, Makoto Kyogoku, Kenji Okamoto, Hiroshi Yamada: Catalyst for purifying exhaust gas. Mazda Motor Corporation, Hugh A Abrams, Sidley & Austin, May 23, 2000: US06066587 (67 worldwide citation)

A catalyst has a base catalyst layer containing platinum and barium as precious metal supported by alumina and an over catalyst layer containing platinum and rhodium as precious metal supported by zeolitr. The platinum and rhodium in the over catalyst layer activate NOx and HC so as to make them mor ...


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Shiraishi Eiichi, Baba Hideyuki, Tsuchitani Kazuo, Ohata Tomohisa: Catalyst for purifying exhaust gas.. Nippon Catalytic Chem, October 7, 1992: EP0507590-A1 (47 worldwide citation)

An exhaust gas purifying catalyst for simultaneous removal of carbon monoxide, hydrocarbons and nitrogen oxides from an exhaust gas from an internal-combustion engine, having carried on a monolithic carrier a mixture comprising a catalytically active component comprising 0.5 to 30 g of palladium, 0. ...


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Tomohisa Ohata, Kazuo Tsuchitani, Eiichi Shiraishi, Shinya Kitaguchi: Catalyst for purifying exhaust gas and method for production thereof. Nippon Shokubai Kagaku Kogyo, Omri M Behr, February 27, 1990: US04904633 (43 worldwide citation)

A catalyst for purifying exhaust gas comprises a honeycomb carrier of monolithic structure and a coating layer deposited on the honeycomb carrier and formed with a catalyst composition containing a refractory inorganic oxide in the form of particles possessing and average particle diameter in the ra ...


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Tadashi Suzuki, Akira Morikawa, Hideo Sobukawa: Catalyst for purifying exhaust gas. Kabushiki Kaisha Toyota Chuo Kenkyusho, Oblon Spivak McClelland Maier & Neustadt P C, January 1, 2002: US06335305 (42 worldwide citation)

A catalyst for purifying an exhaust gas includes a support and a noble metal loaded on the support. The support includes a mixture containing a porous oxide and a composite oxide. The composite oxide is expressed by the following formula:


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Tomohisa Ohata, Sadao Terui, Eiichi Shiraishi: Catalyst for purifying exhaust gas. Nippon Shokubai KagAKU Kogyo, Omri M Behr, November 24, 1987: US04708946 (42 worldwide citation)

A catalyst for purifying exhaust gas, having deposited on a monolithic honeycomb carrier a catalyst composition comprising an alumina-modified cerium oxide obtained by impregnating a water-insoluble cerium compound with at least one member selected from the group consisting of water-soluble aluminum ...


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Tomohisa Ohata, Kazuo Tsuchitani, Shinya Kitaguchi: Catalyst for purifying exhaust gas and method for production thereof. Nippon Shokubai Kagaku Kogyo, Omri M Behr, May 14, 1991: US05015617 (37 worldwide citation)

A catalyst for purifying exhaust gas produced by coating honeycomb carriers of monolithic structure with a catalyst composition comprising cerium oxide particles stabilized with (a) zirconia or (b) zirconia and at least one member selected from the group consisting of yttria and calcia, refractory i ...


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Kikuchi Hiroto, Nakamura Masaki, Sekiba Toru, Suga Katsuo: Catalyst for purifying exhaust gas, and method for producing it. Nissan Motor, December 7, 2006: JP2006-326554 (35 worldwide citation)

PROBLEM TO BE SOLVED: To provide a catalyst for purifying an exhaust gas whose process, time and cost to produce are simple, short and inexpensive respectively, and whose noble metal particles do not agglomerate and become coarse particles even if the catalyst is exposed to an oxidative atmosphere a ...


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Yamamoto Toshio, Suda Akihiko: Manufacturing method of porous composite metal oxide material. Toyota Central Res &Amp Dev Lab, February 22, 2007: JP2007-044585 (34 worldwide citation)

PROBLEM TO BE SOLVED: To provide a method of obtaining efficiently a porous composite metal oxide material useful as a catalyst for purifying exhaust gas, or the like, which is extremely excellent in durability for high temperature, and in which even under high temperatures a specific surface area a ...