| 申请日期 | 2026-04-28 | 申请号 | US12295811 |
| 公开（公告）号 | US20090173065A1 | 公开（公告）日 | 2009-07-09 |
| 公开国别 | US | 申请人省市代码 | 全国 |
| 申请人 | Jin Cho; Tomotaka Hirota; Kenji Tanikawa | ||
| 简介 | An exhaust gas catalyst where the catalyst efficiency is improved by enhancing diffusion of the exhaust gas in a catalyst layer. An exhaust gas catalyst comprises at least a carrier and a plurality of layers formed on the carrier. At least one of the layers has pores therein, and at least one other layer has pores therein and contains, as catalyst components, a noble metal, alumina and a complex oxide mainly containing ceria, zirconia and one or more rare earth elements other than cerium. | ||
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