Mazda Motor Corporation

Toyo Seat Co., Ltd.

Yasuto Watanabe

Takashi Takemoto

Akihide Takami

Hideharu Iwakuni

Makoto Kyogoku

Kazunari Komatsu

Hiroshi Murakami

Masahiko Shigetsu

Masao Hara

Takashi Tomita

Kenji Moriwaki

Masayuki Koishi

Tetsuya Nakata

Naoko Sakatani

Hideharu Iwakini

Tadashi Isobe

Takamichi Amano

Hiroyuki Makihara

Shiro Ogaki

An engine exhaust gas purifying catalyst contains, as active substances, platinum and at least one of iridium, III-B metals and IV-B metals. In particular, the catalyst contains mainly platinum and iridium and, desirably, rhodium as an additive catalyst substance.

Exhaust gas purification system and catalyst therefor

A three-way catalyst is generally used in an automotive exhaust system. This catalyst has a sufficient total content of noble metal active species and is prevented from heat deterioration so that the activity of the noble metal active species can be well utilized at low temperatures to enable the catalyst to exhibit improved purification performance at the low temperatures. The catalyst comprises a first catalyst layer formed on the surface of a honeycomb-shaped carrier and containing Pd (palladium) and alumina (.gamma.-Al.sub.2 O.sub.3), and a second catalyst layer formed on the outer surface of the first catalyst layer and containing Pd and ceria (CeO.sub.2).

Catalyst for exhaust gas purification

An exhaust gas purifying catalyst includes a metal-containing silicate and a noble metal active species carried by the metal-containing silicate. The metal-containing silicate has a solid acid characteristic wherein the amount of acid within a region where an acidity function Ho is equal to or smaller than -3.0 ranges from 0.04 to 0.55 mmol/gr. The noble metal active species burns an hydrocarbon component of exhaust gases to decompose an NOx component also contained in the exhaust gases. The catalyst may include a binder for carrying the noble metal active species on the metal-containing silicate. The binder has a solid acid characteristic wherein the amount of acid within a region where the acidity function Ho is equal to or smaller than -3.0 ranges from 0.04 to 0.55 mmol/gr.

An exhaust gas purifying catalyst includes an active compound, including platinum (Pt) and iridium (Ir), as an essential active compound base and any combination of two or more metals of terbium (Tb), nickel (Ni), indium (In), tin (Sn), cobalt (Co) and cerium (Ce), excepting a combination of indium (In) and tin (Sn), as an additive active material. The base and additive active material are deposited on and carried by a silicate carrier.

Exhaust gas purification catalyst

A catalytic convertor for treating exhaust gas includes a first catalyst layer formed on a base material and a second catalyst layer formed on the first catalyst layer. The first catalyst layer is composed of metal-containing silicate provided with transition metal by ion exchange and at least one precious metal borne on the silicate, and the second catalyst layer is composed of metal-containing silicate provided with transition metal by ion exchange and at least one metal borne on the silicate which is selected from the group consisting of Zr, Co, Cu, Cr, Mn, Y, Fe, Ni, V, Ti, Zn, Ga, Ba, Mg, La, Ce, Pr, Nd, Sm and Tb and differs from the transition metal provided on the silicate by ion exchange.

Catalytic converter for treating exhaust gas

When a resin article having at least one thickened part is blow-molded, a parison is extruded and suspended between halves of a blow mold the inner surface of which defines the outer shape of the article to be molded. An expander panel is inserted into the space inside the parison, and is moved toward the part of the inner surface of the blow mold corresponding to the thickened part of the article to press thereagainst a part of the parison. Then the blow mold is closed and pressurized gas is blown into the parison.

Method of blow molding and blow molding system

A seat frame structure for a vehicle seat having a seat frame main body integrally formed by blow molding of a synthetic resin, and a metal mounting member fixed to a surface of the seat frame main body in an exposed state. The metal mounting member includes an externally exposed mounting member main body, a first edge portion integrally formed on an outer peripheral portion of the mounting member main body, projecting from the outer peripheral portion toward the inner surface side at a predetermined angle, and embedded in the seat frame main body during blow molding of the seat frame main body, at least one hole portion formed in a portion of the mounting member main body located inwardly from its first edge portion, and a second edge portion integrally formed on a peripheral edge of the hole portion, projecting from the mounting member main body toward the inner surface side at a predetermined angle, and embedded in the seat frame main body during blow molding of the seat frame main body.

Growing community of inventors

Iwakuni, Japan

Yasuto Watanabe