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:
Jun. 16, 1998
Filed:
Jun. 27, 1996
Applicant:
Inventors:
Koji Nishimura, Omuta, JP;
Yasuo Imamura, Omuta, JP;
Assignee:
Denki Kagaku Kogyo Kabushiki Kaisha, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
B32B / ; C04B / ;
U.S. Cl.
CPC ...
156 89 ; 156155 ; 156230 ; 264610 ; 264630 ; 264682 ;
Abstract
A process for sealing an end face of a ceramic honeycomb structure includes introducing an expansive material which can be burned off, into through-holes not to be sealed, among through-holes of the honeycomb structure, expanding the expansive material to temporarily seal the through-holes not to be sealed, at their ends, filling a sealant into ends of through-holes to be sealed, and burning off the expansive material and sintering the sealant at the same time.