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. 25, 1995
Filed:
Aug. 23, 1993
Tosiharu Kondo, Toyoake, JP;
Keiji Ito, Nagoya, JP;
Takasi Obata, Kariya, JP;
Kiyotaka Matuo, Nukata, JP;
Yasuyuki Kawabe, Okazaki, JP;
Yukikatsu Ozaki, Gamagori, JP;
Nippondenso Co., Ltd., Kariya, JP;
Nippon Soken Inc., Nishio, JP;
Abstract
To improve the strength of the laser weld bond between an inner honeycomb column and an outer metal case, a metal honeycomb assembly comprises a metal honeycomb column composed of a flat metal sheet and a wavy metal sheet which are mutually laminated and spirally wound together, the metal honeycomb column having an outermost circumferential portion in the form of a composite wavy sheet composed of a plurality of superposed layers of the wavy metal sheet; and a metal case fittingly enclosing the metal honeycomb column, the metal case and the metal honeycomb column being bonded together by laser-welding the wave peaks of the composite wavy sheet to an inner wall of the metal case.