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:
Jan. 08, 2013
Filed:
Jan. 22, 2009
Yasutaka Tanimura, Nara, JP;
Yasuhiro Honda, Takatsuki, JP;
Natsuko Shiota, Ibaraki, JP;
Yoshihiro Hara, Takatsuki, JP;
Yasutaka Tanimura, Nara, JP;
Yasuhiro Honda, Takatsuki, JP;
Natsuko Shiota, Ibaraki, JP;
Yoshihiro Hara, Takatsuki, JP;
Konica Minolta Opto, Inc., , JP;
Abstract
A drive device includes a setting unitfor setting a control value using a control value-displacement characteristic at a predetermined reference temperature showing a relationship between a control value used to position a movable unitand a displacement of the movable unit; a drive unitfor supplying drive power corresponding to the control value set by the setting unitto a shape-memory alloyand causing the shape-memory alloyto expand or contract, thereby positioning the movable unit; and a correction unitfor correcting the control value so as to correct a position shift of the movable unitfrom a target position resulting from a difference between a control value-displacement characteristic at an ambient temperature and a control value-displacement characteristic at the reference temperature based on the ambient temperature detected by a temperature detection unit