The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Apr. 20, 1999
Filed:
May. 16, 1997
Applicant:
Inventors:
Toshio Yamada, Nagoya, JP;
Toshihiko Hijikata, Nagoya, JP;
Assignee:
NGK Insulators, Ltd., , JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428116 ; 428118 ; 428188 ;
Abstract
A honeycomb structural body with improved spalling strength includes a plurality of passages aligned in its axial direction which are defined by partition walls. In the honeycomb structural body, a ratio of L/d is in a range of 0.4-1.3, where d is a diameter of an inscribed circle of the periphery of the honeycomb structural body on a plane perpendicular to its axial direction, and L is a length along the axial direction of the honeycomb structural body.