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.

Date of Patent:
Feb. 16, 2016

Filed:

Jan. 15, 2013
Applicant:

Denso Corporation, Kariya, Aichi-pref., JP;

Inventors:

Kazuhiro Mitsukawa, Ichinomiya, JP;

Masafumi Takahashi, Nishio, JP;

Keisuke Nakamura, Okazaki, JP;

Hidemasa Otsubo, Obu, JP;

Nobuyuki Morikawa, Toyoake, JP;

Assignee:

DENSO CORPORATION, Kariya, Aichi-pref., JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B21D 53/02 (2006.01); B21D 13/00 (2006.01); B23P 15/26 (2006.01); F28F 1/40 (2006.01); B21D 13/04 (2006.01); F28F 1/12 (2006.01); F28D 21/00 (2006.01);
U.S. Cl.
CPC ...
B21D 53/022 (2013.01); B21D 13/00 (2013.01); B23P 15/26 (2013.01); F28F 1/40 (2013.01); B21D 13/04 (2013.01); F28D 2021/0089 (2013.01); F28F 1/128 (2013.01); F28F 2215/08 (2013.01); Y10T 29/5142 (2015.01);
Abstract

Flat-plate connecting portions are formed in a band plate by a connecting-portion forming unit. The flat-plate connecting portions are cut off by another connecting-portion forming unit except one flat-plate connecting portion so as to form a corrugated-plate connecting portion. A corrugated-plate portion is formed by a corrugation forming unit, so that the corrugated-plate portion has multiple projections arranged in a width direction of the band plate and each of the projections extends in a plate feeding direction. The corrugated-plate connecting portion corresponding to a predetermined connecting number is cut off so as to form a corrugated fin having a predetermined number of corrugated-plate portions.


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