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.
Patent No.:
Date of Patent:
Mar. 08, 2022
Filed:
Sep. 06, 2017
Mitsubishi Aluminum Co., Ltd., Tokyo, JP;
Takashi Suzuki, Susono, JP;
MITSUBISHI ALUMINUM CO., LTD., Tokyo, JP;
Abstract
An aluminum alloy foil has a composition containing 1.0% to 1.8% by mass of Fe, 0.10% to 0.20% by mass of Si, 0.005% to 0.05% by mass of Cu, and Mn regulated to be 0.01% by mass or less, with the balance consisting of Al and incidental impurities. With regard to crystal grains surrounded by high inclination angle grain boundaries which are grain boundaries having a misorientation of 15° or more in analysis of crystal orientation per unit area using electron backscatter diffraction, an average grain size of the crystal grains is 10 μm or less, and a maximum grain size of the crystal grains/the average grain size of the crystal grains ≤3.0. When a thickness of the foil is 30 μm, elongations in directions making 0°, 45° and 90° with respect to a rolling direction are each 25% or more respectively.