Filter made of porous ceramic sintered body
US6800108B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Sep 12, 2002 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | Sep 19, 2022 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S55/30
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is directed to a filter made of a porous ceramics sintered body has a honeycomb structure having a large number of through channels partitioned by partition walls and passing through along an axial direction. When a ratio of a pore volume having a diameter of 30 &mgr;m or more to a total pore volume, measured by a method of mercury penetration, of the filter is P1(%) and a thickness of said partition wall is T (&mgr;m), these satisfy the relationship defined by the following formula: P1×10≦T. In case of this filter, one may produce it relatively easily on a large scale without adjustment requiring the change of the properties of material for a filter, and the filter can flexibly cope with various uses.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.