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:
Jul. 14, 2009
Filed:
Apr. 03, 2007
Applicants:
Yoshiaki Shibasaki, Azumino, JP;
Kosaku Nobuta, Suwa, JP;
Inventors:
Yoshiaki Shibasaki, Azumino, JP;
Kosaku Nobuta, Suwa, JP;
Assignee:
Seiko Epson Corporation, Tokyo, JP;
Primary Examiner:
Int. Cl.
CPC ...
G05B 19/40 (2006.01);
U.S. Cl.
CPC ...
Abstract
A method of controlling a stepping motor, comprising: performing a driving control of driving a rotor at a predetermined step angle; and performing a stop control of giving a driving circuit of the stepping motor a stop instruction for stopping the rotor at a position that is before or beyond a target stop position by a minuter step angle than the step angle in the driving control in a direction in which the rotor is rotated when to stop the rotor at the target stop position.