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:
May. 24, 2022
Filed:
Jun. 26, 2018
Toppan Printing Co., Ltd., Tokyo, JP;
TOPPAN PRINTING CO., LTD., Tokyo, JP;
Abstract
The percentage of a height of each undulation with respect to a length of the undulation is a unit steepness. A steepness is an average value of unit steepnesses of all undulations in a longitudinal direction at each of different positions in a width direction of a metal sheet. The maximum value of steepnesses in a center section in the width direction is less than or equal to 0.3%. The maximum value of steepnesses in a first edge in the width direction and a maximum value of steepnesses in a second edge section in the width direction are less than or equal to 0.6%. The maximum value of steepnesses in at least one of the first edge section and the second edge section in the width direction is less than the maximum value of steepnesses in the center section in the width direction.