Studebaker & Brackett PC
Catalyst-supported particulate filter
In at least part of a catalyst layer of a particulate filter, a second catalyst part is exposed on the surface of the catalyst layer to overlie a first catalyst part, the first catalyst part contains Pt-carried activated alumina particles, the second catalyst part contains ZrNd-based mixed oxide particles containing a rare earth metal M and at least one of the first catalyst part and the second catalyst part further contains CeZr-based mixed oxide particles containing a rare earth metal R.
Mazda Motor Corporation
B F Y B B F B F F B B B B B B B F B B B B B B B
B01D F01N Y02T B01J B01J F01N B01J F01N F01N B01J B01J B01J B01D B01D B01J B01J F01N B01J B01D B01D B01J B01J B01D B01D
inventional inventional additional inventional inventional additional additional inventional additional additional additional additional additional additional inventional additional additional additional additional additional additional additional additional inventional
Kenji Hiroshi Akihide Koichiro Kenji
Okamoto Yamada Tamani Harada Suzuki