The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 17, 1990
Filed:
Jul. 08, 1988
Toshihiro Takada, Toyota, JP;
Shinichi Matsumoto, Aichi, JP;
Hikaru Aoyagi, Toyota, JP;
Mikio Yamanaka, Yamato, JP;
Keiichi Ohmura, Sagamihara, JP;
Toshiyuki Yashiro, Tokyo, JP;
Toyota Jidosha Kabushiki Kaisha, Tokyo, JP;
Nippon Steel Corporation, Tokyo, JP;
Nippon Kinzoku Co., Ltd., Tokyo, JP;
Abstract
An exhaust gas purifying catalyst of this invention comprises a heat resistance stainless steel catalyst support, an oxide film containing zirconium oxide formed on the heat resistance stainless steel catalyst support, an activated alumina catalyst carrier layer formed on the oxide film, and at least one metal catalyst loaded in the activated alumina catalyst carrier layer. Thus, the activated alumina catalyst carrier layer's come-off from the catalyst support and the oxidation of the catalyst support are suppressed at the same time, and the conversions of the hydrocarbons (HC), carbon monoxide (CO) and nitrogen oxides (NOx) are also improved.