Nippon Steel Corporation

Matsushita Electric Works, Ltd.

Tamio Noda

Yozo Takemura

Mikio Yamanaka

Masayuki Kasuya

Yoshikatsu Ikari

Tadayuki Otani

Kazutoshi Iwami

Hitoshi Ohta

Yoshikuni Tokunaga

Tadashi Morita

Toru Utsumi

Toshihiro Egami

Yoshitsugu Sakagami

Fujio Shimizu

Masaru Meguro

Atuhiko Imai

Norio Mikami

In order to improve solid phase diffusion bondability at contact portions between a metal flat foil and a metal corrugated foil together constituting a metal honeycomb body for a catalyst converter used for purifying an exhaust gas and to improve engine durability, the present invention comprises one or combination of the following structures; a structure wherein at least one of the metal foils has a foil thickness of less than 40 &mgr;m; a structure wherein an Al content after bonding is at least 3%; a structure wherein the surface condition of both metal foils in a width-wise direction has a predetermined surface coarseness or a predetermined surface shape and condition; and a structure wherein the width of contact portions between both metal foils is at least five times the thickness of the metal foils. In order to further improve engine durability, the present invention disposes an unbonded portion inside the honeycomb body having the construction described above, or disposes a shell on the outer periphery of the honeycomb body.

Metal honeycomb body for exhaust gas purification catalyst and method for producing the same

Air purification agent and process for production of same

Composition having strong air cleaning ability and method of preparing

A component for deodorizing air or gas having a coexist compound as a deodorizing element, said coexist compound comprising a metal and a reaction product of the metal and an acid, wherein the metal is selected from at least one of Fe, Mn, Cr, Ni, Zn, Al and Cu, and the acid is selected from at least one of ascorbic acid, gluconic acid, citric acid, tartaric acid, tannic acid, gallic acid, EDTA and malic acid, wherein clean air or gas is passed through the deodorizing element to restore its deodorizing effect after a period of time sufficient for the deodorizing element to lose its deodorizing power.

Component for deodorizing air and other gases

Composition for gas purification and method of preparing same

Growing community of inventors

Tokai, Japan

Tamio Noda