Filter and method for manufacturing same
US12305551B2 · kind B2 · utility
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16Claims
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Key dates
| Filing date | Jun 1, 2020 |
| Grant date | May 20, 2025 |
| Priority date | — |
| Expiry date | Aug 2, 2042 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
A filter including a plurality of pillar-shaped honeycomb structure segments made of porous ceramics, side faces of the segments being bonded together via a bonding material, wherein each of the pillar-shaped honeycomb structure segments includes an outer peripheral side wall, and partition walls partitioning a plurality of cells extending from a first end face to a second end face, and in each of the pillar-shaped honeycomb structure segments, an average porosity of the outer peripheral side wall is lower than that of the partition walls.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.