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. 21, 1999
Filed:
Mar. 28, 1996
Applicant:
Inventors:
Masamitsu Ishiyama, Toyokawa, JP;
Makoto Izawa, Kariya, JP;
Toshio Kitaoka, Toyokawa, JP;
Yasuhiro Matsumoto, Toyokawa, JP;
Mitsutoshi Yagoto, Toyokawa, JP;
Assignee:
Minolta Co., Ltd., Osaka, JP;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H02K / ;
U.S. Cl.
CPC ...
310 12 ; 310 14 ;
Abstract
A linear motor including a stator having a drive field magnet extending in a uniform direction, a movable piece including an armature coil opposed to the field magnet, and a carrying member carrying a predetermined portion of the stator, wherein the stator is provided with predetermined magnetic poles for driving the movable piece only at a range in which a change in the magnetic field by the influence of the carrying member is prevented or suppressed.