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:
Feb. 12, 2019
Filed:
Oct. 06, 2015
Cataler Corporation, Kakegawa-shi, Shizuoka, JP;
Tatsuya Ohashi, Kakegawa, JP;
Shingo Sakagami, Kakegawa, JP;
Tsuyoshi Ito, Kakegawa, JP;
Ryota Onoe, Kakegawa, JP;
Naoto Miyoshi, Toyota, JP;
Masahiko Takeuchi, Toyota, JP;
Akemi Sato, Toyota, JP;
CATALER CORPORATION, Kakegawa, JP;
Abstract
A exhaust gas purification apparatus is provided with; a substrate having a wall-flow structure and including entry-side cells, exit-side cells, and a porous partition; a first catalyst region formed in small diameter pores having relatively small pore diameters among internal pores in the partition; and a second catalyst region formed in large diameter pores having relatively large pore diameters among the internal pores in the partition. The first catalyst region contains a support and any one or two species of precious metal selected from Pt, Pd, and Rh loaded on the support, while the second catalyst region contains a support and any one or two species of precious metal selected from Pt, Pd, and Rh loaded on the support and other than at least the precious metal present in the first catalyst region.