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:
Feb. 02, 2010
Filed:
Aug. 30, 2000
Yukihito Ichikawa, Nagoya, JP;
Toshihiko Hijikata, Nagoya, JP;
Makoto Miyazaki, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
An undulated-wall honeycomb structure () has multiple cell passages () with mutually parallel passage directions. With this undulated-wall honeycomb structure (), intersections () between walls () partitioning the cell passages () are formed at cross-sections perpendicular to the cell passages () and positioned systematically maintaining a predetermined pitch, and also the wall face portions () of the walls () excluding the intersections () are formed with undulated shapes in both the cell passage direction and the cross-section direction perpendicular to the cell passage direction. According to this undulated-wall honeycomb structure, advantages such as improved exhaust gas purification capabilities and catalyst capabilities, improved mechanical strength for canning, and further improved heat-resistant shock properties can be obtained.