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:
Oct. 08, 2019
Filed:
May. 25, 2015
Diepex Co., Ltd, Osaka, JP;
Takayuki Takeuchi, Osaka, JP;
DIEPEX CO., LTD., Osaka, JP;
Abstract
A pressed crease-forming member includes a strip-shaped member having a crease-forming portion formed with three or a larger-than-three odd number of ribs extending in the longitudinal direction of the strip-shaped member with one of the ribs located at the widthwise center of the crease-forming portion and each half of the remaining even number of ribs arranged on either side of the center rib. At least the top of the center rib, namely, the rib located at the widthwise center of the crease-forming portion, is chamfered. Grooves are formed between the adjacent ribs. The ribs are arranged such that the tops of the ribs are formed, as a whole, into a convex shape. The bottom of each groove is recessed beyond the tops of the ribs on both sides of the groove.