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:
Sep. 29, 1992
Filed:
Oct. 31, 1990
Applicant:
Inventors:
Masahiro Sakamoto, Tokyo, JP;
Junnosuke Kataoka, Tokyo, JP;
Assignee:
Canon Kabushiki Kaisha, Tokyo, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H02P / ;
U.S. Cl.
CPC ...
318696 ; 358406 ;
Abstract
A scanning device comprises: a stepping motor; a memory device for storing drive data for driving the stepping motor for each scanning unit which does not correspond to each drive step of the stepping motor; and a motor driving device for driving the stepping motor in accordance with the drive data read from the memory device.