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:
Jul. 17, 2012
Filed:
Jul. 08, 2008
Takemi Muroga, Tsuchiura, JP;
Yasuyuki Ito, Tsuchiura, JP;
Koji Aoyagi, Tsuchiura, JP;
Yoshiki Yamamoto, Tsukuba, JP;
Kenji Yokomizo, Tokyo, JP;
Takemi Muroga, Tsuchiura, JP;
Yasuyuki Ito, Tsuchiura, JP;
Koji Aoyagi, Tsuchiura, JP;
Yoshiki Yamamoto, Tsukuba, JP;
Kenji Yokomizo, Tokyo, JP;
Hitachi Cable, Ltd., Tokyo, JP;
Abstract
A rolled copper foil according to the present invention includes a crystal grain alignment wherein: when normalized intensity of {200}plane diffraction of a copper crystal in results obtained by an X-ray diffraction pole figure measurement with respect to a rolled surface is plotted against at different values of angle α, the normalized intensity being obtained during a β scanning in the pole figure measurement, a ratio of a maximum value A of the normalized intensity with angle α in a range of 40° to 60° to a maximum value B of the normalized intensity with angle α in a range of 80° to 90° is equal to or greater than 4; and when the normalized intensity increases with increasing angle α in a range of 25° to 45°, there is essentially no area in which the normalized intensity increases stepwise.