Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Yuki Kido0
Kazuma Nakada0
Etsuko Ohara0
Suguru Matsui0
Date of Patent
October 22, 2024
0Patent Application Number
169598960
Date Filed
November 8, 2019
0Patent Citations
Patent Primary Examiner
Patent abstract
A production method of an exhaust gas purification device includes the steps of supplying a solution containing a catalyst metal from a shower nozzle to an upper part of a honeycomb substrate, coating the honeycomb substrate with the solution, and firing the honeycomb substrate coated with the solution, wherein the shower nozzle has a plurality of discharge openings for discharging the solution and a guard which surrounds the plurality of discharge openings.
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