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. 13, 2012
Filed:
Jun. 04, 2010
Akira Tachiki, Tokyo, JP;
Shigeru Hirano, Tokyo, JP;
Hiroshi Nishida, Tokyo, JP;
Hirokazu Yokoya, Tokyo, JP;
Hironobu Miyazaki, Tokyo, JP;
Masakazu Noda, Tokyo, JP;
Akira Tachiki, Tokyo, JP;
Shigeru Hirano, Tokyo, JP;
Hiroshi Nishida, Tokyo, JP;
Hirokazu Yokoya, Tokyo, JP;
Hironobu Miyazaki, Tokyo, JP;
Masakazu Noda, Tokyo, JP;
Nippon Steel Corporation, Tokyo, JP;
Abstract
Steel sheet for container use able to realize superior corrosion resistance and canmaking ability, wherein at least one side of the steel sheet is provided with a chemical conversion coating film including a mixture of a zirconium oxide compound and a zirconium phosphate compound, the zirconium oxide compound is segregated at part or all of a region of 40 to 100% from the surface with respect to the total thickness of the chemical conversion coating film, and the zirconium phosphate compound is segregated at part or all of a region of 0 to 40% from the surface with respect to the total thickness of the chemical conversion coating film.