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:
Nov. 28, 2000
Filed:
Jun. 11, 1998
Hirofumi Sugikawa, Toyonaka, JP;
Katayama Special Industries, Ltd., Osaka-fu, JP;
Abstract
A method of manufacturing a battery can-forming material, comprising the steps of spreading metal powder on a hot-rolled steel plate (hot coil) or applying said metal powder in the form of paste to a surface thereof; annealing and then rolling the hot-rolled steel plate having the metal powder applied to the surface thereof to form a metal layer consisting of the metal powder on the surface thereof; cold-rolling the hot-rolled steel plate and the metal layer; annealing the hot-rolled steel plate and the metal layer; and rolling the hot-rolled steel plate and the metal layer by a skin pass roller. Instead of forming the metal layer of the metal powder, the metal powder may be plated on the surface of the hot-rolled steel plate.