Denso Corporation

Nippondenso Co., Ltd.

Nippon Soken, Inc.

Takashi Obata

Keiji Ito

Masakazu Tanaka

Yasuyuki Kawabe

Masakazu Murata

Takeshi Ueda

Masao Yokoi

Kiyotaka Matuo

Yasushi Shimizu

Yoshiyasu Andou

Tosiharu Konda

There is provided a honeycomb structural body with a lower-than-conventional heat capacity and excellent durability. A honeycomb structural body (,) having partition walls composed mainly of cordierite arranged in a honeycomb fashion is provided with fortified section (,) with a higher strength than the general section (,) at one end or both ends (,) in the direction of length of the partition walls (,). The fortified section (,) is given improved strength by having increased density with respect to the general section.

Honeycomb structural body and process for production of the same

A metal catalyst carrier for exhaust gas purification, comprising: a metal honeycomb column composed of flat and wavy metal sheets laminated, wound together, and bonded to each other to provide numerous exhaust gas flow paths along the column axis, the honeycomb column having a quasi-elliptical cross section defined by a pair of mutually facing linear portions and a pair of mutually facing curved portions in a plane perpendicular to the column axis, the flat and wavy sheets being bonded in a greater bond rate in the major axial end portions than in the other portion of the quasi-ellipse, the bond rate being defined as a quotient obtained by dividing a bonded length by a total length of lines on which the laminated and wound flat and wavy sheets are in contact with each other; and a columnar metal case fittingly enclosing the honeycomb column and bonded to the honeycomb column only in the portions corresponding to the curved portions of the quasi-elliptical cross section.

Metal catalyst carrier

Growing community of inventors

Kariya, Japan

Takashi Obata