Part-I - Controller General of Patents Designs and Trademarks

(12) PATENT APPLICATION PUBLICATION (21) Application No.1130/CHE/2012 A
(19) INDIA
(22) Date of filing of Application :26/03/2012 (43) Publication Date : 21/06/2013
(54) Title of the invention : HONEYCOMB UNIT FOR EXHAUST EMISSION CONTROL
(51) International classification :F01N (71)Name of Applicant :
(31) Priority Document No
:2011- 1)HONDA MOTOR CO., LTD.
079744 Address of Applicant :1-1, MINAMI-AOYAMA 2-
(32) Priority Date :31/03/2011 CHOME, MINATO-KU, TOKYO, 107-8556 Japan
(33) Name of priority country :Japan 2)GOSHI GIKEN CO., LTD.
(86) International Application No
Filing Date
:NA
:NA
(72)Name of Inventor :
1)HORIMURA, HIROYUKI
(87) International Publication No : NA 2)KAWAGUCHI, DAIJI
(61) Patent of Addition to Application Number
Filing Date
:NA
:NA
3)SUWA, SATORU
4)IWANE, KATSUHIRO
(62) Divisional to Application Number
Filing Date
:NA
:NA
5)KOZAIKU, TAKAFUMI
(57) Abstract :
A metal honeycomb structure (ll) includes planar and corrugated sheets (15, 16) brazed together at first and second joining
portions (17A, 17B) made of brazing materials applied to the corrugated sheet (16). The first and second joining portions (17A,
17B) are located proximate exhaust inlet and outlet (21, 22) of the honeycomb structure (ll). The honeycomb further includes a
joining strip (18) joined to a metal outer tube (12). The joining strip (18) is made of a brazing material (25) applied to an inner
wall of the metal outer tube (12). The second joining portion (17B) overlaps the joining strip (18) and has a brazing length larger
than a brazing length of the first joining portion (17A) which does not overlap the joining strip (18).
No. of Pages : 36 No. of Claims : 7
The Patent Office Journal 21/06/2013 13755