| US 7,468,202 B2 | ||
| Honeycomb structural body | ||
| Hirofumi Sakamoto, Chita-gun (Japan) | ||
| Assigned to NGK Insulators, Ltd., Nagoya (Japan) | ||
| Appl. No. 10/511,899 PCT Filed May 14, 2003, PCT No. PCT/JP03/05972 § 371(c)(1), (2), (4) Date Oct. 20, 2004, PCT Pub. No. WO03/101585, PCT Pub. Date Dec. 11, 2003. |
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| Claims priority of application No. 2002-157966 (JP), filed on May 30, 2002. | ||
| Prior Publication US 2005/0214503 A1, Sep. 29, 2005 | ||
| Int. Cl. B32B 3/12 (2006.01) | ||
| U.S. Cl. 428—116 | 9 Claims |
| 1. A honeycomb structure made by joining a plurality of honeycomb segments in each of which a plurality of cells each having
a quadrilateral sectional shape are formed by being defined by a plurality of partition walls which are at right angles to
each other, characterized in that some but not all of the honeycomb segments constituting at least a portion of the outer
periphery of the honeycomb structure have a structure in which compression strength of a majority of partition walls is larger
than that of the honeycomb segments constituting the other portions of the honeycomb structure,
wherein the plurality of partition walls, within the some but not all honeycomb segments, form an angle of 20 to 70 degrees
within respect to a tangent of the outer periphery of the honeycomb structure at the point the partition wall intersects the
periphery.
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