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:
Sep. 18, 2018
Filed:
Feb. 16, 2016
Cataler Corporation, Kakegawa-shi, Shizuoka, JP;
Toyota Jidosha Kabushiki Kaisha, Toyota-shi, Aichi, JP;
Ryota Onoe, Kakegawa, JP;
Shingo Sakagami, Kakegawa, JP;
Yasutaka Nomura, Kakegawa, JP;
Yuta Morishita, Kakegawa, JP;
Junji Kuriyama, Kakegawa, JP;
Hiroshi Sekine, Kakegawa, JP;
Daisuke Ochiai, Kakegawa, JP;
Naoto Miyoshi, Nagoya, JP;
Masahiko Takeuchi, Toyota, JP;
Akemi Sato, Toyota, JP;
CATALER CORPORATION, Kakegawa-shi, JP;
TOYOTA JIDOSHA KABUSHIKI KAISHA, Toyota, JP;
Abstract
A wall-flow-type exhaust gas purification catalyst with an oxygen storage material that has an increased OSC and exhibits its OSC without a compromise provides an exhaust gas purification catalyst having a wall-flow-type substrate, a first catalytic layer and a second catalytic layer. The first catalytic layer is provided to an internal portion of a partition wall in contact with an entrance cell. The second catalytic layer is provided to an internal portion of a partition wall in contact with an exit cell. Each of the first and second catalytic layers has an oxygen storage material. The ratio (D/D) of the coating density Dof the first catalytic layer to the coating density Dof the second catalytic layer is 1.1 to 1.8.