Surface-treated steel plate for battery case and battery case

Chemistry: electrical current producing apparatus – product – and – Current producing cell – elements – subcombinations and... – Cell enclosure structure – e.g. – housing – casing – container,...

Reexamination Certificate

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C429S176000, C429S177000

Reexamination Certificate

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08043741

ABSTRACT:
A battery case excellent in glossiness of appearance and working efficiency and a surface-plated steel plate which can be used preferably to manufacture the battery case. The battery case is produced by deep-drawing, DI-forming, DTR-forming a surface-treated steel plate having glossy nickel or glossy nickel-cobalt alloy plating on the outermost layer corresponding to the external face of a battery case of a plated original plate consisting of a steel plate. The glossy nickel plating or glossy nickel-cobalt alloy plating layer on the outermost layer has a high glossiness, and therefore the appearance is excellent. The runnability of a formed battery case is high as well as the working efficiency.

REFERENCES:
patent: 6270922 (2001-08-01), Ohmura et al.
patent: 0939448 (1999-09-01), None
patent: 07-99686 (1995-10-01), None
patent: 10-212595 (1998-08-01), None
patent: WO 97/42667 (1997-11-01), None
patent: WO 97/44835 (1997-11-01), None
patent: WO 98/10475 (1998-03-01), None
patent: WO 00/65671 (2000-11-01), None
Japanese Patent Abstract, JP 10-212595 a, published Aug. 11, 1998, entitled “Manufacture of battery can forming material and battery can made of the same forming material”, applicant Katayama Tokushu Kogyo KK.

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