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US 7,732,366 B2Granted
Honeycomb structure and exhaust gas purifying device
AssigneeIbiden Co., Ltd.
InventorsKazushige Ohno, Masafumi Kunieda, Akihiro Ohira
Life of this patent
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Abstract
A honeycomb structure comprises a porous ceramic which is composed of several cells aligned across a cell wall longitudinally. The cell has either one end sealed. The gas permeability coefficient k of the cell wall is between about 0.5 μm2 and about 1.5 μm2.
Claims20
A honeycomb structure comprising a porous ceramic which is composed of several cells aligned across a cell wall longitudinally, the cell having either one end sealed, in which a gas permeability coefficient k of the cell wall is between about 0.5 μm2 and about 1.5 μm2.
An exhaust gas purifying device;
- comprising a honeycomb structure, a casing covering the outer surface of the honeycomb structure and a holding sealer provided between the honeycomb structure and the casing,
- wherein the honeycomb structure comprising a porous ceramic which is composed of several cells aligned across a cell wall longitudinally, the cell having either one end sealed, in which a gas permeability coefficient k of the cell wall is between about 0.5 μm2 and about 1.5 μm2.
Dependencies are inferred from the claim text.