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:
Jun. 18, 2013
Filed:
May. 05, 2011
Naoyuki Ishikawa, Kanagawa, JP;
Hitoshi Hattori, Tokyo, JP;
Naohiro Kikkawa, Kanagawa, JP;
Shuuya Nagasako, Kanagawa, JP;
Takashi Saito, Kanagawa, JP;
Yuusuke Shibasaki, Kanagawa, JP;
Hidetoshi Kojima, Miyagi, JP;
Naoki Oikawa, Miyagi, JP;
Go Aiba, Miyagi, JP;
Naoyuki Ishikawa, Kanagawa, JP;
Hitoshi Hattori, Tokyo, JP;
Naohiro Kikkawa, Kanagawa, JP;
Shuuya Nagasako, Kanagawa, JP;
Takashi Saito, Kanagawa, JP;
Yuusuke Shibasaki, Kanagawa, JP;
Hidetoshi Kojima, Miyagi, JP;
Naoki Oikawa, Miyagi, JP;
Go Aiba, Miyagi, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A creasing device that creases sheets on a per-sheet basis and includes: a first member extending perpendicularly to a sheet conveying direction and including a convex blade; a second member extending perpendicularly to the sheet conveying direction and including a concave blade, into which the convex blade is to be fitted; a drive unit that brings the first and the second members into and out of contact with each other, thereby producing a crease in a sheet interposed between the first and the second members; a sheet retainer driven by the drive unit and brought into contact with the second member with the sheet therebetween to retain the sheet across its full width; and a holding unit that holds the sheet retainer in a retaining state during creasing where the contact between the first and the second members starts at one point and develops in one direction.