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. 09, 2019
Filed:
Jan. 09, 2017
Ngk Insulators, Ltd., Nagoya, JP;
Junki Matsuya, Nagoya, JP;
Yasushi Kato, Nagoya, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A honeycomb structure having a hexagonal cross-sectional shape of cells and having specific open cells in which open changing portions are present only in a range of 30 mm or less from the first end face, and the open changing portion satisfies relations of 1≤|(1−(D/D))×100|≤70 and 1≤|(1−(D/D))×100|≤70. Dindicates a diameter of an inscribed circle which comes in contact with a peripheral edge of the open end of the cell in the first end face. Dindicates a diameter of the inscribed circle which comes in contact with the peripheral edge of the open end of the cell in the second end face. Dindicates a diameter of an inscribed circle which comes in contact with a peripheral edge of the cell in a cross section perpendicular to a direction from the first end face toward the second end face.