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:
Feb. 22, 2011
Nobuyuki Satoh, Kanagawa, JP;
Jun Yamane, Kanagawa, JP;
Masato Kobayashi, Kanagawa, JP;
Norikazu Taki, Kanagawa, JP;
Tatsuhiko Okada, Saitama, JP;
Daisaku Horikawa, Saitama, JP;
Daisuke Sawada, Saitama, JP;
Nobuyuki Satoh, Kanagawa, JP;
Jun Yamane, Kanagawa, JP;
Masato Kobayashi, Kanagawa, JP;
Norikazu Taki, Kanagawa, JP;
Tatsuhiko Okada, Saitama, JP;
Daisaku Horikawa, Saitama, JP;
Daisuke Sawada, Saitama, JP;
Ricoh Company, Limited, Tokyo, JP;
Abstract
A movable member encoder is used to detect the position of a movable member, and a correction value calculator calculates a correction value corresponding to the amount of displacement of the movable member from a reference position and the integration of the amount of displacement. The correction value calculated by the correction value calculator is then used in correcting a voltage instruction value output from a feed motor controller to a feed motor.