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. 12, 2002
Filed:
Jun. 11, 2001
Applicant:
Inventors:
Kazuhisa Fujiwara, Ageo, JP;
Naotomi Takahashi, Ageo, JP;
Assignee:
Mitsui Mining & Smelting Co., Ltd., Saitama, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B65H 1/928 ; B65H 7/528 ;
U.S. Cl.
CPC ...
B65H 1/928 ; B65H 7/528 ;
Abstract
To provide a copper foil roll, which is a final product form of copper foil, in which wrinkles generating in the vicinity of a core tube of the copper foil roll are restrained to the utmost, and a better winding balance is provided. A method for winding copper foil on a core tube, in which the copper foil is spliced to a core tube with use of a pressure-sensitive double-sided adhesive coated tape with releasing paper and is wound into a roll form.