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:
Aug. 10, 2010

Filed:

Dec. 06, 2006
Applicants:

Atsushi Fukumoto, Tokyo, JP;

Akio Niikura, Tokyo, JP;

Kenji Negura, Kariya, JP;

Keiichi Okazaki, Kariya, JP;

Tatsuo Ozaki, Kariya, JP;

Toshihide Ninagawa, Kariya, JP;

Inventors:

Atsushi Fukumoto, Tokyo, JP;

Akio Niikura, Tokyo, JP;

Kenji Negura, Kariya, JP;

Keiichi Okazaki, Kariya, JP;

Tatsuo Ozaki, Kariya, JP;

Toshihide Ninagawa, Kariya, JP;

Assignees:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B32B 15/20 (2006.01);
U.S. Cl.
CPC ...
Abstract

An aluminum alloy brazing sheet which has a clad of a sacrificial anode material/a core alloy/an intermediate material/a filler alloy, wherein number density ratios N/Nand N/Neach are 1.5 or more, in which a number density ((the number of grains)/μm) of an intermetallic compound having a sphere-equivalent grain diameter of 0.1 μm or less present in the core alloy, the intermediate material, and the sacrificial anode material, is represented by N, N, and N, respectively.


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