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. 11, 2011
Filed:
Nov. 10, 2006
Minoru Takahashi, Yokohama, JP;
Hiromichi Matsuda, Isehara, JP;
Satoshi Imai, Sagamihara, JP;
Hiroshi Koide, Yamato, JP;
Minoru Takahashi, Yokohama, JP;
Hiromichi Matsuda, Isehara, JP;
Satoshi Imai, Sagamihara, JP;
Hiroshi Koide, Yamato, JP;
Ricoh Company, Ltd., Tokyo, JP;
Abstract
A belt drive controller for controlling each belt stopping position with high accuracy during intermittent movement of a belt. This belt drive controller controls driving of a belt to intermittently move a belt wrapped around a plurality of supporting rollers including a driven roller and a drive roller. This controller detects a rotation angular displacement or a rotation angular velocity of two supporting rollers having mutually different diameters, and controls driving of the drive roller based on the detected rotation data so that the position of the belt in the direction of movement becomes a predetermined target position.