Patent · US Active

Exhaust gas purification filter

US10233803B2 · kind B2 · utility

1Cited by

10References

13Claims

0Family size

Assignee

Johnson Matthey Public Limited Company · GB

Inventors

Satoshi Sumiya · Gyōda, JP
Daisuke Yokota · Yokohama, JP

Key dates

Filing date	Mar 29, 2017
Grant date	Mar 19, 2019
Priority date	—
Expiry date	Mar 29, 2037

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T10/12
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Provided is an exhaust gas purification filter including a substrate comprising a plurality of porous partitions, wherein the partitions form an exhaust gas flow path, a porous catalytic layer is provided on the partitions and the catalytic layer having a thickness of 10 μm or greater is provided over at least 20% of the total length of the partitions in the lengthwise direction thereof, and the catalytic layer having a thickness of 10 μm or greater is not present on the partitions 15 mm from an outflow side.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.