Is a
Patent attributes
Current Assignee
Patent Jurisdiction
Patent Number
Date of Patent
August 23, 2011
Patent Application Number
12509930
Date Filed
July 27, 2009
Patent Citations Received
Patent Primary Examiner
Patent abstract
A method of manufacturing a plugged honeycomb structure has a plugging process which includes the steps of: immersing one end (a first end) of a honeycomb base material in a plugging slurry while vibrating the plugging slurry; after bringing an internal part of a cell into a negative pressure and then returning it into an atmospheric pressure, vibrating the plugging slurry to make the plugging slurry enter a first open end of the cell; and drying the plugging slurry having entered the first open end of the cell to form a first plugging portion at the first end.
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