Toyota Jidosha Kabushiki Kaisha

Cataler Corporation

Jun Sawada

Ryota Onoe

Naoto Miyoshi

Keiichi Narita

Masahiko Takeuchi

Akemi Sato

Yasutaka Nomura

Hiroshi Sekine

Atsushi Tanaka

Yuta Morishita

Ichiro Kitamura

Daisuke Ochiai

Junji Kuriyama

Akihito Inoue

Provided is an exhaust gas purification catalyst that combines reduction of pressure loss and enhancement of purification performance. This invention provides an exhaust gas purification catalyst comprising a wall-flow-type substrate and first and second catalytic layers. The first catalytic layer is provided to the interior of a partition wall, in contact with an entrance cell, from an exhaust inlet-side end in the running direction, having a length Lless than Lw. The second catalytic layer is provided to the interior of a partition wall, in contact with an exit cell, from an exhaust outlet-side end in the running direction, having a length Lless than Lw. An internal portion of partition wall in contact with entrance cell has a substrate-exposing segment near the exhaust outlet-side end.

Exhaust gas purification catalyst

Growing community of inventors

Kakegawa, Japan

Jun Sawada