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:
Oct. 28, 2014
Filed:
Aug. 05, 2010
Toshiro Tojo, Shinagawa-ku, JP;
Toshiyuki Aso, Shinagawa-ku, JP;
Yuki Nomura, Shinagawa-ku, JP;
Akihiro Unno, Shinagawa-ku, JP;
Toshiro Tojo, Shinagawa-ku, JP;
Toshiyuki Aso, Shinagawa-ku, JP;
Yuki Nomura, Shinagawa-ku, JP;
Akihiro Unno, Shinagawa-ku, JP;
THK Co., Ltd., Tokyo, JP;
Abstract
A distributed-arrangement linear motor in which stators are arranged in a distributed manner and a method of controlling the distributed-arrangement linear motor are provided. The linear motoris a linear motor in which a stator and a movable member are relatively movable, wherein the stator and the movable member respectively have periodic structures in which plural kinds of poles of the stator and the movable member () () which magnetically act each other and arranged periodically subsequently in an order according to the arrangement in a direction of the relative motion therebetween; a plurality of stators are arranged in a distributed manner in the direction of the relative motion; a distance D, Dbetween adjacent stators is not more than a length Lmv of the movable member; the pole of the stator is formed of a coil; and a current control unit that controls current to be supplied to the coil based on the distance between the stators is provided.