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:
Dec. 19, 1989
Filed:
Jul. 12, 1988
Applicant:
Inventor:
Akinori Muranaka, Fujieda, JP;
Assignee:
Star Seimitsu Kabushiki Kaisha, Shizuoka, JP;
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318696 ; 318685 ;
Abstract
The present invention relates to a driving method of a stepping motor, wherein the hold position of the motor does not change and further no complicated control is required in controlling current for economizing power consumption by controlling the coil current in a manner that the balance of torque may not be disturbed by excitation winding.